### Anachro-rs Device Deployment Example

Source: https://github.com/anachro-rs/anachro/blob/main/crates/spi/README.md

Example of how an nrf52832 microcontroller can be configured as a broker, connecting to various clients via USB-UART and ESB.

```text
* nrf52832 - Broker
  * USB-UART -> PC (client)
  * ESB      -> Lighting controller (client)
  * ESB      -> E-Paper Clock (client)
```

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

### Anachro-rs Network Layers Diagram

Source: https://github.com/anachro-rs/anachro/blob/main/crates/spi/README.md

A detailed breakdown of the anachro-rs network layers, mapping application data down to the physical SPI and GPIO interfaces.

```text
6. Application:  [ Application Data                                   ]
5. Routing:      [ Routing                                            ]
4. Client:       [ Anachro Session State                              ]
3. ClientIo:     [ Anachro ICD Data Types - Anachro Protocol          ]
2. Enc/Logic:    [ Serde/Postcard Encoded Data                        ]
1. Enc     :     [ COBS Encoded Data     ][    State Logic            ] **** first
0. Physical:     [ SPI - COPI, CIPO, SCK ][ GPIO - CSn   ][ GPIO - GO ] **** second

TODO: Do these match?


6: [ ?????? ]           User Applications
       ^
       v
5: [ router ]           Logical Topics/App Protocol
       ^
       v
4: [ struct ]           (Client)
       ^
       v
3: [ trait  ]           (ClientIo)
       ^
       v
2: [ struct ]           (EncLogicHLComponent)
       ^
       v
1: [ trait  ]           (EncLogicLLComponent)
       ^
       v
0: [ struct ]           (TCPSpiClient, concrete protocol layer)
```

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

### Anachro-rs SPI Protocol Layer Diagram

Source: https://github.com/anachro-rs/anachro/blob/main/crates/spi/README.md

Visual representation of the SPI protocol's position within the anachro-rs network stack, showing data flow from application to physical layers.

```text
Application:  [ Application Data                                   ]
????????:     [ Anachro Session State                              ]
????????:     [ Anachro ICD Data Types - Anachro Protocol          ]
????????:     [ Serde/Postcard Encoded Data                        ]
Enc/Logic:    [ COBS Encoded Data     ][    State Logic            ] **** first
Physical:     [ SPI - COPI, CIPO, SCK ][ GPIO - CSn ][  GPIO - GO  ] **** second
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.