Announcement ESPHome running on Adafruit 52840 over Thread mesh networking using ZephyrRTOS

Hedda · May 21, 2024, 7:51am

Not seen @NateLust here in over a year, so check out this project by tomaszduda23 on GitHub:

github.com/esphome/esphome

basic support for nrf52840

esphome:dev ← tomaszduda23:nrf52

opened 11:17PM - 10 Jan 24 UTC

tomaszduda23

+3415 -31

# What does this implement/fix? It is possible to buy cheap [nrf52840 module]…(https://github.com/joric/nrfmicro/wiki). It would be very convenience to program it using yaml files. It is proof of concept for support NRF52 on esphome. ## How to upload There are few options: 1. with stlink `python -m esphome upload tests/test12.2.yaml --device PYOCD` 2. if board have adafruit bootloader image has to build with ```yaml nrf52: board: adafruit_itsybitsy_nrf52840 ``` to upload `python -m esphome upload tests/test12.3.yaml` 3. if board support UF2 ```bash cp ./tests/.esphome/build/nrf52-test-nrf-adafruit/.pioenvs/nrf52-test-nrf-adafruit/zephyr/zephyr.uf2 /media/0321-5432/ ``` 4. BLE OTA with mcuboot `python -m esphome upload tests/test12.2.yaml` to specify mac address of BLE device `python -m esphome upload tests/test12.2.yaml --device AA:BB:CC:11:22:33` ## TODO **Arduino** moved to https://github.com/esphome/esphome/pull/6228 **Zephyr** - [x] GPIO - [x] CDC DFU (0.8.2 is more stable) - adafruit - [x] CDC logger - [x] nrf-sdk based - [x] UART0 logger - [ ] UART0 logger tested - [x] BLE OTA - mcuboot - [ ] ~CDC OTA - mcuboot recover~ (`FLASH' overflowed by 11320 bytes) - [x] CDC OTA - mcuboot - [ ] serial OTA - mcuboot recovery - [x] watchdog - [x] BLE logger - [x] preferences for restore mode - [x] preferences for adafruit - [ ] disable update of preferences during OTA - why is it done for other platforms? - [x] fix arm builds - [x] add pyocd to upload - [x] move to main branch for smp - [ ] move to main branch for smpclient - [x] move debug config to separate component - [ ] validate prj.conf after compilation to make sure that config was applied correctly - [ ] GPIO interrupts - [ ] what to do if image cannot be confirmed during OTA? - [x] implement get mac - [x] change name for dfu? - [x] adc - [ ] pull up does not work for P0.17 and P0.20 - [ ] change voltage (it works only twice without erase) - [ ] delete files if app.overlay change - [x] i2c Fix review comments https://github.com/esphome/esphome/pull/6075#issuecomment-2094929824 - [x] fix build with python 3.9 - https://github.com/intercreate/smpclient/issues/16 - [x] move tests to new structure in tests/components/<component> - [x] check #6459 - [x] move small changes unrelated components to own PRs - https://github.com/esphome/esphome/pull/6679 - [x] wrapped code with #ifdef USE_ZEPHYR or #ifdef USE_NRF52 How to communicate with HA? Options: - [ ] BLE serial - 10KB/s - 2M PHY, interval of 7.5 ms, 247MTU - [ ] BTHome - https://github.com/esphome/feature-requests/issues/1862 - sensors only - [ ] custom BLE service - https://novelbits.io/bluetooth-5-speed-maximum-throughput/ - [ ] openthread https://openthread.io/codelabs/openthread-hardware#1 The SoC has only 1MB of memory. All above consume: ```bash RAM: [= ] 5.9% (used 14736 bytes from 248832 bytes) Flash: [== ] 17.9% (used 146000 bytes from 815104 bytes) ``` ## update adafruit bootloader ```bash git clone https://github.com/adafruit/Adafruit_nRF52_Bootloader cd Adafruit_nRF52_Bootloader make BOARD=nice_nano all make BOARD=nice_nano SERIAL=/dev/ttyACM0 flash-dfu ``` ## Types of changes - [ ] Bugfix (non-breaking change which fixes an issue) - [x] New feature (non-breaking change which adds functionality) - [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected) - [ ] Other **Related issue or feature (if applicable):** fixes <link to issue> **Pull request in [esphome-docs](https://github.com/esphome/esphome-docs) with documentation (if applicable):** esphome/esphome-docs#<esphome-docs PR number goes here> ## Test Environment - [ ] ESP32 - [ ] ESP32 IDF - [ ] ESP8266 - [ ] RP2040 - [ ] BK72xx - [ ] RTL87xx - [x] nrf52840 ## Example entry for `config.yaml`:  ```yaml --- nrf52: # board: adafruit_itsybitsy_nrf52840 board: adafruit_feather_nrf52840 # framework: # variant: nrf-sdk # bootloader: adafruit # bootloader: mcuboot esphome: name: nrf52-test-nrf logger: level: DEBUG logs: switch: NONE switch: - platform: gpio pin: number: 15 inverted: true mode: output: true id: gpio_15 interval: - interval: 500ms then: - switch.toggle: gpio_15 output: - platform: gpio pin: number: 14 inverted: true mode: output: true id: rest_gpio ota: - platform: zephyr_mcumgr zephyr_ble_server: ``` ## Checklist: - [x] The code change is tested and works locally. - [x] Tests have been added to verify that the new code works (under `tests/` folder). If user exposed functionality or configuration variables are added/changed: - [ ] Documentation added/updated in [esphome-docs](https://github.com/esphome/esphome-docs).