### Full ESP-IDF and XPowersLib Build Process

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/XPowersLib/examples/ESP_IDF_Example/README.md

This snippet provides a complete sequence of bash commands to set up the ESP-IDF development environment from scratch, clone the XPowersLib, install necessary tools, export environment variables, navigate to the example project, configure, build, flash, and monitor the project on an ESP32 device.

```bash
mkdir -p ~/esp
cd ~/esp
git clone --recursive https://github.com/espressif/esp-idf.git
git clone https://github.com/lewisxhe/XPowersLib.git
cd esp-idf
./install.sh
. ./export.sh
cd ..
cd XPowersLib/examples/ESP_IDF_Example
idf.py menuconfig
idf.py build
idf.py -b 921600 flash
idf.py monitor
```

--------------------------------

### PubSubClient Arduino Test Case Conventions

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/pubsubclient/tests/README.md

This outlines the conventions for creating test cases for the Arduino test suite. Test cases must subclass `unittest.TestCase`, provide `setUpClass` and `tearDownClass` methods, and have test methods prefixed with `test_`. The `setUpClass` method is called before sketch upload for test setup.

```APIDOC
Test Case Conventions:
  - Sub-class: unittest.TestCase
  - Class Methods:
    - setUpClass(): Called before uploading the sketch for test setup.
    - tearDownClass(): (TODO: make optional)
  - Test Method Naming: All names must begin with 'test_'
```

--------------------------------

### View PMU Configuration Output

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/XPowersLib/examples/ESP_IDF_Example/README.md

This snippet displays the console output from an ESP-IDF project using XPowersLib, showing the initialization status and the configured voltage and enable/disable states for various DCDC, ALDO, and BLDO power management unit (PMU) components.

```text
I (345) mian: I2C initialized successfully
I (355) AXP2101: Init PMU SUCCESS!
I (385) AXP2101: DCDC=======================================================================
I (385) AXP2101: DC1  :ENABLE    Voltage:3300 mV
I (385) AXP2101: DC2  :DISABLE   Voltage:900 mV
I (395) AXP2101: DC3  :ENABLE    Voltage:3300 mV
I (395) AXP2101: DC4  :DISABLE   Voltage:1100 mV
I (405) AXP2101: DC5  :DISABLE   Voltage:1200 mV
I (405) AXP2101: ALDO=======================================================================
I (415) AXP2101: ALDO1:ENABLE    Voltage:1800 mV
I (425) AXP2101: ALDO2:ENABLE    Voltage:2800 mV
I (425) AXP2101: ALDO3:ENABLE    Voltage:3300 mV
I (435) AXP2101: ALDO4:ENABLE    Voltage:3000 mV
I (435) AXP2101: BLDO=======================================================================
I (445) AXP2101: BLDO1:ENABLE    Voltage:3300 mV
```

--------------------------------

### TinyGSM Library API Reference Overview

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/TinyGSM/README.md

This section provides an overview of the TinyGSM library's API. It highlights that the library implements the standard Arduino Client interface for GPRS data streams, ensuring compatibility with existing Arduino network examples. For a comprehensive list of additional functions and their usage, users are directed to a specific example sketch provided within the library.

```APIDOC
TinyGSM Library API Overview:
  - Provides standard Arduino Client interface for GPRS data streams.
  - For additional functions, refer to the 'AllFunctions/AllFunctions.ino' example sketch.
```

--------------------------------

### Formatting HTTP Requests Manually for TCP Clients

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/TinyGSM/README.md

This snippet illustrates the correct way to format HTTP GET requests when manually constructing them using a TCP client library. It highlights the importance of enclosing entire headers in single print statements to prevent character-by-character transmission and ensures proper line endings for HTTP compliance.

```cpp
// Use this format for HTTP header lines:
client.print(String("GET ") + resource + " HTTP/1.1\r\n");

// Instead of this (which can cause typewriter-style transmission):
client.print("GET ");
client.print(resource);
client.println(" HTTP/1.1")
```

--------------------------------

### Verify SIM7080G Firmware Version via AT Command

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/docs/sim7080_update_firmware.md

This command is used in a serial terminal (e.g., Arduino IDE's serial monitor) to query and display the current firmware version of the SIM7080G module. It helps confirm successful firmware updates and module functionality by showing the installed firmware version.

```AT Command
AT+CGMR
```

--------------------------------

### Serialize JSON with ArduinoJson in C++

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/ArduinoJson-5/README.md

This snippet shows how to create a JSON document programmatically using StaticJsonBuffer and JsonObject to add fields and a nested array, then print it to Serial in C++.

```c++
StaticJsonBuffer<200> jsonBuffer;

JsonObject& root = jsonBuffer.createObject();
root["sensor"] = "gps";
root["time"] = 1351824120;

JsonArray& data = root.createNestedArray("data");
data.add(48.756080);
data.add(2.302038);

root.printTo(Serial);
// This prints:
// {"sensor":"gps","time":1351824120,"data":[48.756080,2.302038]}
```

--------------------------------

### Deserialize JSON with ArduinoJson in C++

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/ArduinoJson-5/README.md

This snippet demonstrates how to parse a JSON string into a JsonObject using StaticJsonBuffer and extract values for sensor, time, and data (latitude/longitude) in C++.

```c++
char json[] = "{\"sensor\":\"gps\",\"time\":1351824120,\"data\":[48.756080,2.302038]}";

StaticJsonBuffer<200> jsonBuffer;

JsonObject& root = jsonBuffer.parseObject(json);

const char* sensor = root["sensor"];
long time          = root["time"];
double latitude    = root["data"][0];
double longitude   = root["data"][1];
```

--------------------------------

### Power Management API Methods for LilyGo T-SIM7080G

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/XPowersLib/keywords.txt

Provides a comprehensive list of API methods for controlling and monitoring power management features on the LilyGo T-SIM7080G. This includes functions for enabling/disabling voltage regulators (LDOs/SLDOs), setting and getting voltage levels, managing battery charging parameters, reading various sensor measurements (temperature, voltage), and checking interrupt statuses.

```APIDOC
setALDO3Voltage
getALDO3Voltage
isEnableALDO4
enableALDO4
disableALDO4
setALDO4Voltage
getALDO4Voltage
isEnableBLDO1
enableBLDO1
disableBLDO1
setBLDO1Voltage
getBLDO1Voltage
isEnableBLDO2
enableBLDO2
disableBLDO2
setBLDO2Voltage
getBLDO2Voltage
isEnableCPUSLDO
enableCPUSLDO
disableCPUSLDO
setCPUSLDOVoltage
getCPUSLDOVoltage
isEnableDLDO1
enableDLDO1
disableDLDO1
setDLDO1Voltage
getDLDO1Voltage
isEnableDLDO2
enableDLDO2
disableDLDO2
setDLDO2Voltage
getDLDO2Voltage
setIrqLevelTime
getIrqLevelTime
setPowerKeyPressOffTime
getPowerKeyPressOffTime
setPowerKeyPressOnTime
getPowerKeyPressOnTime
enableGeneralAdcChannel
disableGeneralAdcChannel
enableTemperatureMeasure
disableTemperatureMeasure
getTemperature
enableSystemVoltageMeasure
disableSystemVoltageMeasure
getSystemVoltage
enableVbusVoltageMeasure
disableVbusVoltageMeasure
getVbusVoltage
enableTSPinMeasure
disableTSPinMeasure
enableTSPinLowFreqSample
disableTSPinLowFreqSample
getTsTemperature
enableBattVoltageMeasure
disableBattVoltageMeasure
enableBattDetection
disableBattDetection
getBattVoltage
getBatteryPercent
setChargingLedMode
getChargingLedMode
setButtonBatteryChargeVoltage
setPrechargeCurr
getPrechargeCurr
setChargerConstantCurr
getChargerConstantCurr
setChargerTerminationCurr
getChargerTerminationCurr
enableChargerTerminationLimit
disableChargerTerminationLimit
isChargerTerminationLimit
setChargeTargetVoltage
getChargeTargetVoltage
setThermaThreshold
getThermaThreshold
getBatteryParameter
isDropWarningLevel2Irq
isDropWarningLevel1Irq
isGaugeWdtTimeoutIrq
isBatChargerOverTemperatureIrq
isBatChargerUnderTemperatureIrq
isBatWorkOverTemperatureIrq
isBatWorkUnderTemperatureIrq
isPekeyNegativeIrq
isPekeyPositiveIrq
isLdoOverCurrentIrq
isBatfetOverCurrentIrq
isBatDieOverTemperatureIrq
isChagerOverTimeoutIrq
isBatOverVoltageIrq
```

--------------------------------

### Build and Run Local PubSubClient Tests

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/pubsubclient/tests/README.md

This section describes how to build and run the local regression tests for the `PubSubClient` library. It involves using a `Makefile` to compile executables, which are then run from the `./bin/` directory. These tests do not require a physical Arduino.

```Shell
$ make

# To run individual tests, execute them from the ./bin/ directory, e.g.:
# $ ./bin/connect_spec
```

--------------------------------

### Run Arduino PubSubClient Test Suite

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/pubsubclient/tests/README.md

This section explains how to execute the Arduino-based test suite. It assumes an MQTT server is already running and uses a Python script to manage the compilation, upload, and execution of Arduino sketches. A suitable Arduino board must be plugged in for full functionality.

```Python
$ python testsuite.py
```

--------------------------------

### BIGIOT Platform Library Methods and Functions

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/ArduinoBIGIOT/keywords.txt

Enumerates the available methods and functions in the BIGIOT Platform Library. These are categorized as KEYWORD2 for syntax highlighting, representing callable operations or actions that can be performed using the library.

```BIGIOT Syntax Definition
login   KEYWORD2
connectAttack	KEYWORD2
disconnectAttack    KEYWORD2
eventAttach KEYWORD2
handle  KEYWORD2
upload  KEYWORD2
loaction    KEYWORD2
sendAlarm   KEYWORD2
isOnline    KEYWORD2
deviceName  KEYWORD2
setHeartFreq    KEYWORD2
setEmailHost    KEYWORD2
setSender   KEYWORD2
setRecipient    KEYWORD2
sendEmail   KEYWORD2
setSCKEY    KEYWORD2
sendWechat  KEYWORD2
uploadPhoto KEYWORD2
```

--------------------------------

### TinyGSM Library General Code Flow for Module Control

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/TinyGSM/README.md

This snippet outlines the typical sequence of operations when developing with the TinyGSM library. It covers defining the modem, including necessary headers, instantiating modem and client objects, managing serial communication, initializing the modem, handling SIM unlock, connecting to WiFi or cellular networks (GPRS/EPS), and establishing TCP/SSL client connections for data transmission. It highlights various methods for single and multiple client connections, and notes on network registration and GPRS connection specifics.

```C++
// Define the module (choose one)
#define TINY_GSM_MODEM_SIM800

// Include TinyGSM
#include <TinyGsmClient.h>

// Create a TinyGSM modem instance
TinyGsm modem(SerialAT);

// Create TinyGSM client instances
// For a single connection:
TinyGsmClient client(modem);
// or
TinyGsmClientSecure client(modem); // (on supported modules)

// For multiple connections (on supported modules):
TinyGsmClient clientX(modem, 0);
TinyGsmClient clientY(modem, 1);
// or
TinyGsmClientSecure clientX(modem, 0);
TinyGsmClientSecure clientY(modem, 1);

// Initialize the modem
modem.init();
// or
modem.restart();

// Unlock SIM (if necessary)
modem.simUnlock(GSM_PIN);

// If using WiFi, specify SSID information
modem.networkConnect(wifiSSID, wifiPass);

// Wait for network registration to be successful
modem.waitForNetwork(600000L);

// If using cellular, establish GPRS or EPS data connection
modem.gprsConnect(apn, gprsUser, gprsPass);
// or simply
modem.gprsConnect(apn);

// Connect the TCP or SSL client
client.connect(server, port);
```

--------------------------------

### Basic CMakeLists.txt Boilerplate for ESP-IDF

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/XPowersLib/examples/ESP_IDF_Example/CMakeLists.txt

This snippet provides the fundamental boilerplate lines required at the beginning of a `CMakeLists.txt` file for an ESP-IDF project. It ensures CMake compatibility, specifies additional component directories like `XPowersLib`, integrates standard ESP-IDF project utilities, and sets the project name.

```CMake
cmake_minimum_required(VERSION 3.5)

set(EXTRA_COMPONENT_DIRS ../../../XPowersLib)

include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(XPowersLib_Example)
```

--------------------------------

### PubSubClient API Elements Reference

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/pubsubclient/keywords.txt

Provides a structured reference to the core API elements of the PubSubClient library, including its main datatype, available methods, and functions for MQTT client operations, as well as any defined constants.

```APIDOC
PubSubClient API:
  Datatypes:
    PubSubClient

  Methods and Functions:
    connect()
    disconnect()
    publish()
    publish_P()
    beginPublish()
    endPublish()
    write()
    subscribe()
    unsubscribe()
    loop()
    connected()
    setServer()
    setCallback()
    setClient()
    setStream()

  Constants:
    (No constants listed)
```

--------------------------------

### BIGIOT Platform Library Constants

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/ArduinoBIGIOT/keywords.txt

Defines the constants used throughout the BIGIOT Platform Library. These fixed values are marked as LITERAL1 for syntax highlighting, providing predefined options or states within the library's functionality.

```BIGIOT Syntax Definition
DISCONNECT  LITERAL1
INVALD  LITERAL1
STOP    LITERAL1
PLAY    LITERAL1
OFFON   LITERAL1
MINUS   LITERAL1
UP  LITERAL1
PLUS    LITERAL1
LEFT    LITERAL1
PAUSE   LITERAL1
RIGHT   LITERAL1
BACKWARD    LITERAL1
DOWN    LITERAL1
FPRWARD LITERAL1
CUSTOM  LITERAL1
```

--------------------------------

### Configure PubSubClient Arduino Test Settings

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/pubsubclient/tests/README.md

This describes how to configure the test environment using `testcases/settings.py`. It specifies the `server_ip` and `arduino_ip` variables, which are automatically substituted into Arduino sketches during compilation based on specific line prefixes.

```APIDOC
Settings File: testcases/settings.py
  - server_ip: The IP address of the broker the client should connect to (broker port 1883 assumed).
  - arduino_ip: The IP address the Arduino should use (when not testing DHCP).

Substitution Logic:
  - Values are automatically substituted into sketch lines starting with:
    - byte server[] = {
    - byte ip[] = {
```

--------------------------------

### Enable AT Command Dumping for Diagnostics

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/TinyGSM/README.md

To copy the entire AT command sequence exchanged with the module to the main serial port, define `DUMP_AT_COMMANDS`. This provides detailed insight into communication for advanced debugging.

```C++
#define DUMP_AT_COMMANDS
```

--------------------------------

### Registering ESP-IDF Component Source Files and Includes

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/XPowersLib/examples/ESP_IDF_Example/main/CMakeLists.txt

This snippet demonstrates the use of the `idf_component_register` CMake function to define an ESP-IDF component. It lists the C++ source files (`SRCS`) that belong to the component and specifies the include directories (`INCLUDE_DIRS`) required for compilation. This configuration is typically placed in the `CMakeLists.txt` file within the component's directory.

```CMake
idf_component_register(SRCS "main.cpp"
                    "port_axp192.cpp"
                    "port_axp2101.cpp"
                    "port_i2c.cpp"
                    INCLUDE_DIRS ".")
```

--------------------------------

### MQTT 3.1.1 Support and API Enhancements in v2.0

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/pubsubclient/CHANGES.txt

Version 2.0 introduces MQTT 3.1.1 support, fixes PROGMEM handling, adds overloaded constructors, chainable setters, and a state function for connection return codes.

```APIDOC
Version 2.0 Changes:
- Add (and default to) MQTT 3.1.1 support
- Fix PROGMEM handling for Intel Galileo/ESP8266
- Add overloaded constructors for convenience
- Add chainable setters for server/callback/client/stream
- Add state function to return connack return code
```

--------------------------------

### TinyGsm Module Methods and Functions

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/TinyGSM/keywords.txt

Details key methods and functions for controlling and querying the GSM module, including initialization, network management, GPRS connectivity, and status checks.

```APIDOC
Methods and Functions:
  begin()
  restart()
  waitForNetwork()
  getSimStatus()
  gprsConnect()
  gprsDisconnect()
  isGprsConnected()
  isNetworkConnected()
  factoryReset()
```

--------------------------------

### Integrate StreamDebugger for AT Command Logging

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/TinyGSM/README.md

This C++ snippet demonstrates how to conditionally integrate `StreamDebugger` into your custom code. When `DUMP_AT_COMMANDS` is defined, `StreamDebugger` is used to log AT commands; otherwise, the standard `TinyGsm` initialization is used.

```C++
#ifdef DUMP_AT_COMMANDS
  #include <StreamDebugger.h>
  StreamDebugger debugger(SerialAT, SerialMon);
  TinyGsm modem(debugger);
#else
  TinyGsm modem(SerialAT);
#endif
```

--------------------------------

### BIGIOT Platform Library Datatypes

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/ArduinoBIGIOT/keywords.txt

Lists the core data types defined within the BIGIOT Platform Library. These are identified as KEYWORD1 for syntax highlighting purposes, indicating fundamental data structures or object types used in the library's API.

```BIGIOT Syntax Definition
BIGIOT  KEYWORD1
xEamil  KEYWORD1
ServerChan  KEYWORD1
```

--------------------------------

### ArduinoJson Library Types and Methods Reference

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/ArduinoJson-5/keywords.txt

Provides a quick reference for the main data types and common methods used in the ArduinoJson library for efficient JSON manipulation.

```APIDOC
Types (KEYWORD1):
  - JsonArray
  - JsonObject
  - JsonVariant
  - StaticJsonBuffer
  - DynamicJsonBuffer

Methods (KEYWORD2):
  - add
  - createArray
  - createNestedArray
  - createNestedObject
  - createObject
  - parseArray
  - parseObject
  - prettyPrintTo
  - printTo
  - success
```

--------------------------------

### API Changes and New Features in v1.9

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/pubsubclient/CHANGES.txt

Version 1.9 includes significant API changes requiring a Client instance for constructors, adds username/password support, and introduces `publish_P` for PROGMEM messages.

```APIDOC
Version 1.9 Changes:
- Do not split MQTT packets over multiple calls to _client->write()
- API change: All constructors now require an instance of Client to be passed in.
- Fixed example to match 1.8 api changes
- Added username/password support
- Added publish_P - publishes messages from PROGMEM
```

--------------------------------

### Initial Release Limitations in v1.0

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/pubsubclient/CHANGES.txt

Version 1.0, the initial release, outlines key limitations including QOS 0 support only, a maximum message size of 128 bytes, a fixed keepalive interval, and no support for Will messages.

```APIDOC
Version 1.0 Limitations:
- Only Quality of Service (QOS) 0 messaging is supported
- The maximum message size, including header, is 128 bytes
- The keepalive interval is set to 30 seconds
- No support for Will messages
```

--------------------------------

### Default Constructor and Compile Fix in v1.5

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/pubsubclient/CHANGES.txt

Version 1.5 adds a default constructor and fixes a compile error with newer Arduino versions.

```APIDOC
Version 1.5 Changes:
- Added default constructor
- Fixed compile error when used with arduino-0021 or later
```

--------------------------------

### TinyGsm Date/Time Literals

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/TinyGSM/keywords.txt

Defines literal constants used for specifying different date and time formats within the TinyGsm context.

```APIDOC
Literals:
  DATE_FULL
  DATE_TIME
  DATE_DATE
```

--------------------------------

### Set Fixed Baud Rate for TinyGSM Module

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/TinyGSM/README.md

After establishing initial communication with the module, it is recommended to set a fixed baud rate using this function for production code. Avoid using auto-bauding features in stable deployments.

```C++
setBaud(#)
```

--------------------------------

### Connection Lost Handling Fix in v1.4

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/pubsubclient/CHANGES.txt

Version 1.4 addresses and fixes issues related to handling lost connections.

```APIDOC
Version 1.4 Changes:
- Fixed connection lost handling
```

--------------------------------

### AXP2102 Power Management IC API Reference

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/XPowersLib/keywords.txt

Comprehensive list of API methods available for interacting with the AXP2102 PMIC. These methods allow for detailed control and monitoring of power states, battery charging, temperature thresholds, voltage regulation, and system wake-up/shutdown sequences.

```APIDOC
AXP2102 API Methods:
  isBatInActiveModeState()
  getThermalRegulationStatus()
  getCurrnetLimitStatus()
  isStandby()
  isPowerOn()
  isPowerOff()
  getChargerStatus()
  enableInternalDischarge()
  disableInternalDischarge()
  enablePwrOkPinPullLow()
  disablePwrOkPinPullLow()
  enablePwronShutPMIC()
  disablePwronShutPMIC()
  resetPmuSocSystem()
  softPowerOff()
  setBatfetDieOverTempLevel1()
  getBatfetDieOverTempLevel1()
  enableBatfetDieOverTempDetect()
  disableBatfetDieOverTempDetect()
  setDieOverTempLevel1()
  getDieOverTempLevel1()
  enableDieOverTempDetect()
  disableDieOverTempDetect()
  getVbusVoltageLimit()
  getVinCurrentLimit()
  resetGauge()
  resetGaugeBesides()
  enableGauge()
  disableGauge()
  enableButtonBatteryCharge()
  disableButtonBatteryCharge()
  enableCellbatteryCharge()
  disableCellbatteryCharge()
  enableWatchdog()
  disableWatchdog()
  setWatchdogConfig()
  getWatchConfig()
  clrWatchdog()
  setWatchdogTimeout()
  getWatchdogTimerout()
  setLowBatWarnThreshold()
  getLowBatWarnThreshold()
  setLowBatShutdownThreshold()
  getLowBatShutdownThreshold()
  enablePoweronAlwaysHighSource()
  disablePoweronAlwaysHighSource()
  enableBattInsertOnSource()
  disableBattInsertOnSource()
  enableBattNormalOnSource()
  disableBattNormalOnSource()
  enableVbusInsertOnSource()
  disableVbusInsertOnSource()
  enableIrqLowOnSource()
  disableIrqLowOnSource()
  enablePwronLowOnSource()
  disablePwronLowOnSource()
  enableOverTemperatureOffSource()
  disableOverTemperatureOffSource()
  enableDcOverVoltageOffSource()
  disableDcOverVoltageOffSource()
  enableDcUnderVoltageOffSource()
  disableDcUnderVoltageOffSource()
  enableVbusOverVoltageOffSource()
  disableVbusOverVoltageOffSource()
  enableVsysUnderVoltageOffSource()
  disableVsysUnderVoltageOffSource()
  enablePwronAlwaysLowOffSource()
  disablePwronAlwaysLowOffSource()
  enableSwConfigOffSource()
  disableSwConfigOffSource()
  enablePwrSourcePullDown()
  disablePwrSourcePullDown()
  enableOverTemperatureLevel2PowerOff()
  disableOverTemperaturePowerOff()
  enableLongPressShutdown()
  disableLongPressShutdown()
  setLongPressRestart()
  setLongPressPowerOFF()
  enableDCHighVoltageTurnOff()
  disableDCHighVoltageTurnOff()
  enableDC5LowVoltageTurnOff()
  disableDC5LowVoltageTurnOff()
  enableDC4LowVoltageTurnOff()
  disableDC4LowVoltageTurnOff()
  enableDC3LowVoltageTurnOff()
  disableDC3LowVoltageTurnOff()
  enableDC2LowVoltageTurnOff()
  disableDC2LowVoltageTurnOff()
  enableDC1LowVoltageTurnOff()
  disableDC1LowVoltageTurnOff()
  setVsysPowerOffThreshold()
  getVsysPowerOffThreshold()
  wakeupControl()
  enableWakeup()
  disableWakeup()
  disableSleep()
  setIrqLevel()
  setOffLevel()
  setOnLevel()
  setDc4FastStartSequence()
  setDc3FastStartSequence()
  setDc2FastStartSequence()
  setDc1FastStartSequence()
  setAldo3FastStartSequence()
  setAldo2FastStartSequence()
  setAldo1FastStartSequence()
  setDc5FastStartSequence()
  setCpuldoFastStartSequence()
  setBldo2FastStartSequence()
  setBldo1FastStartSequence()
  setAldo4FastStartSequence()
  setDldo2FastStartSequence()
  setDldo1FastStartSequence()
  setFastPowerOnLevel()
  enableFastPowerOn()
  disableFastPowerOn()
  enableFastWakeup()
  disableFastWakeup()
  setDCHighVoltagePowerDowm()
  getDCHighVoltagePowerDowmEn()
  isEnableDC1()
  enableDC1()
  disableDC1()
  getDC1WorkMode()
  setDC1LowVoltagePowerDowm()
  getDC1LowVoltagePowerDowmEn()
  getDC2WorkMode()
  setDC2LowVoltagePowerDowm()
  getDC2LowVoltagePowerDowmEn()
  getDC3WorkMode()
  setDC3LowVoltagePowerDowm()
  getDC3LowVoltagePowerDowmEn()
  isEnableDC4()
  enableDC4()
  disableDC4()
  setDC4Voltage()
  getDC4Voltage()
  setDC4LowVoltagePowerDowm()
  getDC4LowVoltagePowerDowmEn()
  isEnableDC5()
  enableDC5()
  disableDC5()
  setDC5Voltage()
  getDC5Voltage()
  isDC5FreqCompensationEn()
  enableDC5FreqCompensation()
  disableFreqCompensation()
  setDC5LowVoltagePowerDowm()
  getDC5LowVoltagePowerDowmEn()
  isEnableALDO1()
  enableALDO1()
  disableALDO1()
  setALDO1Voltage()
  getALDO1Voltage()
  isEnableALDO2()
  enableALDO2()
  disableALDO2()
  setALDO2Voltage()
  getALDO2Voltage()
  isEnableALDO3()
  enableALDO3()
  disableALDO3()
```

--------------------------------

### AXP192 Power Management Unit Monitoring and Configuration Constants

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/XPowersLib/keywords.txt

Defines constants for monitoring various parameters of the AXP192 Power Management Unit, such as TS pin, APS voltage, USB/AC current/voltage, battery current/voltage, ADC inputs, and temperature. Also includes constants for boot times and GPIO/TS pin definitions, and charging current limits.

```APIDOC
MONITOR_TS_PIN	LITERAL1
MONITOR_APS_VOLTAGE	LITERAL1
MONITOR_USB_CURRENT	LITERAL1
MONITOR_USB_VOLTAGE	LITERAL1
MONITOR_AC_CURRENT	LITERAL1
MONITOR_AC_VOLTAGE	LITERAL1
MONITOR_BAT_CURRENT	LITERAL1
MONITOR_BAT_VOLTAGE	LITERAL1
MONITOR_ADC_IO3	LITERAL1
MONITOR_ADC_IO2	LITERAL1
MONITOR_ADC_IO1	LITERAL1
MONITOR_ADC_IO0	LITERAL1
MONITOR_TEMPERATURE	LITERAL1
XPOWERS_BOOT_TIME_128MS	LITERAL1
XPOWERS_BOOT_TIME_512MS	LITERAL1
XPOWERS_BOOT_TIME_1S	LITERAL1
XPOWERS_BOOT_TIME_2S	LITERAL1
PMU_GPIO0	LITERAL1
PMU_GPIO1	LITERAL1
PMU_GPIO2	LITERAL1
PMU_GPIO3	LITERAL1
PMU_GPIO4	LITERAL1
PMU_GPIO5	LITERAL1
PMU_TS_PIN	LITERAL1
XPOWERS_CHG_CUR_100MA	LITERAL1
XPOWERS_CHG_CUR_190MA	LITERAL1
XPOWERS_CHG_CUR_280MA	LITERAL1
XPOWERS_CHG_CUR_360MA	LITERAL1
XPOWERS_CHG_CUR_450MA	LITERAL1
XPOWERS_CHG_CUR_550MA	LITERAL1
XPOWERS_CHG_CUR_630MA	LITERAL1
```

--------------------------------

### API Enhancements and Fixes in v2.7

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/pubsubclient/CHANGES.txt

Version 2.7 introduces a large-payload API, improves reliability on ESP platforms, adds a Clean Session flag, and enhances ESP32 callback support, alongside various bug fixes.

```APIDOC
Version 2.7 Changes:
- Fix remaining-length handling to prevent buffer overrun
- Add large-payload API:
    - beginPublish()
    - write()
    - publish()
    - endPublish()
- Add yield call to improve reliability on ESP
- Add Clean Session flag to connect options
- Add ESP32 support for functional callback signature
- Various other fixes
```

--------------------------------

### Enable TinyGSM Library Debugging Output

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/TinyGSM/README.md

To output debugging comments from the TinyGSM library to the serial monitor, define `TINY_GSM_DEBUG` before including the TinyGSM library. This is useful for diagnosing issues when other methods fail.

```C++
#define TINY_GSM_DEBUG SerialMon
```

--------------------------------

### AXP2102 Power Management Unit Configuration Constants

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/XPowersLib/keywords.txt

Lists various constants for configuring the AXP2102 Power Management Unit, including interrupt timings, power-off/on durations, charging parameters (precharge, current, termination, voltage), thermal limits, charge LED frequencies, wakeup sources, DCDC/LDO fast enable options, power sequence levels, watchdog timer settings, VBUS voltage/current limits, and VSYS voltage settings.

```APIDOC
XPOWERS_IRQ_TIME_1S	LITERAL1
XPOWERS_IRQ_TIME_1S5	LITERAL1
XPOWERS_IRQ_TIME_2S	LITERAL1
XPOWERS_PRESSOFF_2S5	LITERAL1
XPOWERS_POWEROFF_4S	LITERAL1
XPOWERS_POWEROFF_6S	LITERAL1
XPOWERS_POWEROFF_8S	LITERAL1
XPOWERS_POWEROFF_10S	LITERAL1
XPOWERS_POWERON_128MS	LITERAL1
XPOWERS_POWERON_512MS	LITERAL1
XPOWERS_POWERON_1S	LITERAL1
XPOWERS_POWERON_2S	LITERAL1
XPOWERS_CHG_LED_FRE_0HZ	LITERAL1
XPOWERS_CHG_LED_FRE_1HZ	LITERAL1
XPOWERS_CHG_LED_FRE_4HZ	LITERAL1
XPOWERS_CHG_LED_DISABLE	LITERAL1
XPOWERS_PRECHARGE_0MA	LITERAL1
XPOWERS_PRECHARGE_25MA	LITERAL1
XPOWERS_PRECHARGE_50MA	LITERAL1
XPOWERS_PRECHARGE_75MA	LITERAL1
XPOWERS_PRECHARGE_100MA	LITERAL1
XPOWERS_PRECHARGE_125MA	LITERAL1
XPOWERS_PRECHARGE_150MA	LITERAL1
XPOWERS_PRECHARGE_175MA	LITERAL1
XPOWERS_PRECHARGE_200MA	LITERAL1
XPOWERS_ICC_CHG_0MA	LITERAL1
XPOWERS_ICC_CHG_100MA	LITERAL1
XPOWERS_ICC_CHG_125MA	LITERAL1
XPOWERS_ICC_CHG_150MA	LITERAL1
XPOWERS_ICC_CHG_175MA	LITERAL1
XPOWERS_ICC_CHG_200MA	LITERAL1
XPOWERS_ICC_CHG_300MA	LITERAL1
XPOWERS_ICC_CHG_400MA	LITERAL1
XPOWERS_ICC_CHG_500MA	LITERAL1
XPOWERS_ICC_CHG_600MA	LITERAL1
XPOWERS_ICC_CHG_700MA	LITERAL1
XPOWERS_ICC_CHG_800MA	LITERAL1
XPOWERS_ICC_CHG_900MA	LITERAL1
XPOWERS_ICC_CHG_1000MA	LITERAL1
XPOWERS_CHG_ITERM_0MA	LITERAL1
XPOWERS_CHG_ITERM_25MA	LITERAL1
XPOWERS_CHG_ITERM_50MA	LITERAL1
XPOWERS_CHG_ITERM_75MA	LITERAL1
XPOWERS_CHG_ITERM_100MA	LITERAL1
XPOWERS_CHG_ITERM_125MA	LITERAL1
XPOWERS_CHG_ITERM_150MA	LITERAL1
XPOWERS_CHG_ITERM_175MA	LITERAL1
XPOWERS_CHG_ITERM_200MA	LITERAL1
XPOWERS_CHG_VOL_4V	LITERAL1
XPOWERS_CHG_VOL_4V1	LITERAL1
XPOWERS_CHG_VOL_4V2	LITERAL1
XPOWERS_CHG_VOL_4V35	LITERAL1
XPOWERS_CHG_VOL_4V4	LITERAL1
XPOWERS_THREMAL_60DEG	LITERAL1
XPOWERS_THREMAL_80DEG	LITERAL1
XPOWERS_THREMAL_100DEG	LITERAL1
XPOWERS_THREMAL_120DEG	LITERAL1
XPOWERS_CHG_TRI_STATE	LITERAL1
XPOWERS_CHG_PRE_STATE	LITERAL1
XPOWERS_CHG_CC_STATE	LITERAL1
XPOWERS_CHG_CV_STATE	LITERAL1
XPOWERS_CHG_DONE_STATE	LITERAL1
XPOWERS_CHG_STOP_STATE	LITERAL1
XPOWERS_WAKEUP_IRQ_PIN_TO_LOW	LITERAL1
XPOWERS_WAKEUP_PWROK_TO_LOW	LITERAL1
XPOWERS_WAKEUP_DC_DLO_SELECT	LITERAL1
XPOWERS_FAST_DCDC1	LITERAL1
XPOWERS_FAST_DCDC2	LITERAL1
XPOWERS_FAST_DCDC3	LITERAL1
XPOWERS_FAST_DCDC4	LITERAL1
XPOWERS_FAST_DCDC5	LITERAL1
XPOWERS_FAST_ALDO1	LITERAL1
XPOWERS_FAST_ALDO2	LITERAL1
XPOWERS_FAST_ALDO3	LITERAL1
XPOWERS_FAST_ALDO4	LITERAL1
XPOWERS_FAST_BLDO1	LITERAL1
XPOWERS_FAST_BLDO2	LITERAL1
XPOWERS_FAST_CPUSLDO	LITERAL1
XPOWERS_FAST_DLDO1	LITERAL1
XPOWERS_FAST_DLDO2	LITERAL1
XPOWERS_SEQUENCE_LEVEL_0	LITERAL1
XPOWERS_SEQUENCE_LEVEL_1	LITERAL1
XPOWERS_SEQUENCE_LEVEL_2	LITERAL1
XPOWERS_SEQUENCE_DISABLE	LITERAL1
XPOWERS_WDT_IRQ_TO_PIN	LITERAL1
XPOWERS_WDT_IRQ_AND_RSET	LITERAL1
XPOWERS_WDT_IRQ_AND_RSET_PD_PWROK	LITERAL1
XPOWERS_WDT_IRQ_AND_RSET_ALL_OFF	LITERAL1
XPOWERS_WDT_TIMEOUT_1S	LITERAL1
XPOWERS_WDT_TIMEOUT_2S	LITERAL1
XPOWERS_WDT_TIMEOUT_4S	LITERAL1
XPOWERS_WDT_TIMEOUT_8S	LITERAL1
XPOWERS_WDT_TIMEOUT_16S	LITERAL1
XPOWERS_WDT_TIMEOUT_32S	LITERAL1
XPOWERS_WDT_TIMEOUT_64S	LITERAL1
XPOWERS_WDT_TIMEOUT_128S	LITERAL1
XPOWER_CHGLED_TYPEA	LITERAL1
XPOWER_CHGLED_TYPEB	LITERAL1
XPOWER_CHGLED_MANUAL	LITERAL1
XPOWERS_VBUS_VOL_LIM_3V88	LITERAL1
XPOWERS_VBUS_VOL_LIM_3V96	LITERAL1
XPOWERS_VBUS_VOL_LIM_4V04	LITERAL1
XPOWERS_VBUS_VOL_LIM_4V12	LITERAL1
XPOWERS_VBUS_VOL_LIM_4V20	LITERAL1
XPOWERS_VBUS_VOL_LIM_4V28	LITERAL1
XPOWERS_VBUS_VOL_LIM_4V36	LITERAL1
XPOWERS_VBUS_VOL_LIM_4V44	LITERAL1
XPOWERS_VBUS_VOL_LIM_4V52	LITERAL1
XPOWERS_VBUS_VOL_LIM_4V60	LITERAL1
XPOWERS_VBUS_VOL_LIM_4V68	LITERAL1
XPOWERS_VBUS_VOL_LIM_4V76	LITERAL1
XPOWERS_VBUS_VOL_LIM_4V84	LITERAL1
XPOWERS_VBUS_VOL_LIM_4V92	LITERAL1
XPOWERS_VBUS_VOL_LIM_5V	LITERAL1
XPOWERS_VBUS_VOL_LIM_5V08	LITERAL1
XPOWERS_VBUS_CUR_LIM_100MA	LITERAL1
XPOWERS_VBUS_CUR_LIM_500MA	LITERAL1
XPOWERS_VBUS_CUR_LIM_900MA	LITERAL1
XPOWERS_VBUS_CUR_LIM_1000MA	LITERAL1
XPOWERS_VBUS_CUR_LIM_1500MA	LITERAL1
XPOWERS_VBUS_CUR_LIM_2000MA	LITERAL1
XPOWERS_VSYS_VOL_4V1	LITERAL1
XPOWERS_VSYS_VOL_4V2	LITERAL1
XPOWERS_VSYS_VOL_4V3	LITERAL1
XPOWERS_VSYS_VOL_4V4	LITERAL1
XPOWERS_VSYS_VOL_4V5	LITERAL1
XPOWERS_VSYS_VOL_4V6	LITERAL1
XPOWERS_VSYS_VOL_4V7	LITERAL1
XPOWERS_VSYS_VOL_4V8	LITERAL1
```

--------------------------------

### Library Size Reduction and Will Messages in v1.1

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/pubsubclient/CHANGES.txt

Version 1.1 reduces the library size, adds support for Will messages, and clarifies licensing.

```APIDOC
Version 1.1 Changes:
- Reduced size of library
- Added support for Will messages
- Clarified licensing - see LICENSE.txt
```

--------------------------------

### Retained Message Publishing in v1.6

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/pubsubclient/CHANGES.txt

Version 1.6 adds the capability to publish retained MQTT messages.

```APIDOC
Version 1.6 Changes:
- Added the ability to publish a retained message
```

--------------------------------

### XPOWERS and AXP Power Management Configuration Constants

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/XPowersLib/keywords.txt

This snippet lists various constants used for configuring XPOWERS and AXP series power management integrated circuits (PMICs). These constants define parameters such as charging current limits, termination current thresholds, power-on/off timings, long-press durations, charging LED behaviors, VBUS voltage/current limits, and backup battery settings. They are typically used in embedded C/C++ projects for hardware control.

```C/C++
XPOWERS_CHG_CUR_700MA
XPOWERS_CHG_CUR_780MA
XPOWERS_CHG_CUR_880MA
XPOWERS_CHG_CUR_960MA
XPOWERS_CHG_CUR_1000MA
XPOWERS_CHG_CUR_1080MA
XPOWERS_CHG_CUR_1160MA
XPOWERS_CHG_CUR_1240MA
XPOWERS_CHG_CUR_1320MA
XPOWERS_CHG_ITERM_LESS_10_PERCENT
XPOWERS_CHG_ITERM_LESS_15_PERCENT
XPOWERS_ICC_CHG_100MA
XPOWERS_ICC_CHG_190MA
XPOWERS_ICC_CHG_280MA
XPOWERS_ICC_CHG_360MA
XPOWERS_ICC_CHG_450MA
XPOWERS_ICC_CHG_550MA
XPOWERS_ICC_CHG_630MA
XPOWERS_ICC_CHG_700MA
XPOWERS_ICC_CHG_780MA
XPOWERS_ICC_CHG_880MA
XPOWERS_ICC_CHG_960MA
XPOWERS_ICC_CHG_1000MA
XPOWERS_ICC_CHG_1080MA
XPOWERS_ICC_CHG_1160MA
XPOWERS_ICC_CHG_1240MA
XPOWERS_ICC_CHG_1320MA
XPOWERS_POWERON_128MS
XPOWERS_POWERON_512MS
XPOWERS_POWERON_1S
XPOWERS_POWERON_2S
XPOWERS_LONGPRESS_1000MS
XPOWERS_LONGPRESS_1500MS
XPOWERS_LONGPRESS_2000MS
XPOWERS_LONGPRESS_2500MS
XPOWERS_POWEROFF_4S
XPOWERS_POWEROFF_65
XPOWERS_POWEROFF_8S
XPOWERS_POWEROFF_16S
XPOWERS_CHG_LED_DISABLE
XPOWERS_CHG_LED_FRE_1HZ
XPOWERS_CHG_LED_FRE_4HZ
XPOWERS_CHG_LED_LEVEL_LOW
XPOWERS_CHG_LED_CTRL_CHG
XPOWERS_VBUS_VOL_LIM_4V
XPOWERS_VBUS_VOL_LIM_4V1
XPOWERS_VBUS_VOL_LIM_4V2
XPOWERS_VBUS_VOL_LIM_4V3
XPOWERS_VBUS_VOL_LIM_4V4
XPOWERS_VBUS_VOL_LIM_4V5
XPOWERS_VBUS_VOL_LIM_4V6
XPOWERS_VBUS_VOL_LIM_4V7
XPOWERS_VBUS_CUR_LIM_500MA
XPOWERS_VBUS_CUR_LIM_100MA
XPOWER_CHGLED_CTRL_CHGER
XPOWER_CHGLED_CTRL_MANUAL
XPOWERS_CHG_VOL_4V1
XPOWERS_CHG_VOL_4V15
XPOWERS_CHG_VOL_4V2
XPOWERS_CHG_VOL_4V36
XPOWERS_CHG_CONS_TIMEOUT_7H
XPOWERS_CHG_CONS_TIMEOUT_8H
XPOWERS_CHG_CONS_TIMEOUT_9H
XPOWERS_CHG_CONS_TIMEOUT_10H
XPOWERS_BACKUP_BAT_VOL_3V1
XPOWERS_BACKUP_BAT_VOL_3V
XPOWERS_BACKUP_BAT_VOL_3V0
XPOWERS_BACKUP_BAT_VOL_2V5
XPOWERS_BACKUP_BAT_CUR_50UA
XPOWERS_BACKUP_BAT_CUR_100UA
XPOWERS_BACKUP_BAT_CUR_200UA
XPOWERS_BACKUP_BAT_CUR_400UA
XPOWERS_DATA_BUFFER_SIZE
AXP192_SLAVE_ADDRESS
AXP202_SLAVE_ADDRESS
AXP2101_SLAVE_ADDRESS
```

--------------------------------

### Code Layout Update in v2.2

Source: https://github.com/xinyuan-lilygo/lilygo-t-sim7080g/blob/master/lib/pubsubclient/CHANGES.txt

Version 2.2 updates the code layout to comply with Arduino Library requirements.

```APIDOC
Version 2.2 Changes:
- Change code layout to match Arduino Library reqs
```