Improvements to Timer Firmware (#9)

Refactored timer.

Author: xlevus

README.md

@@ -24,23 +24,24 @@ TBC.
 
 ### Flashing
 
-1. Install dependencies
+1. Flash board with micropython
    ```bash
-   pip install -r requirements-dev.txt
+   cd src/micropython/timer
+   make reflash
    ```
 
-2. Set Environment
-    ```bash
-    export AMPY_PORT=/dev/ttyUSB0
-    export AMPY_BAUD=115200
-    ```
-
-3. Flash ESP32 with esptool:
-    ```bash
-    esptool.py --chip esp32 --port $AMPY_PORT --baud 460800 write_flash -z 0x1000 firmware/esp32-20220117-v1.18.bin
-    ```
-
-4. Upload source:
-    ```bash
-    ./upload.sh
-    ```
+2. Upload source
+  ```bash
+  make sync
+  ```
+
+3. Edit wifi config
+  ```
+  mpremote edit wifi.json
+  ```
+
+  ```
+  [
+    {"ssid": "YOUR_SSID", "key": "WIFI PASSWORD", "mqtt": "mqtt.server.here"}
+  ]
+  ```

build-support/mosquitto

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+exec podman run --name mqtt \
+    --rm \
+    -v "${SCRIPT_DIR}/mosquitto.conf:/mosquitto/config/mosquitto.conf:z" \
+    -p 1883:1883 -p 9001:9001 eclipse-mosquitto

build-support/mosquitto.conf

@@ -0,0 +1,2 @@
+listener 1883 0.0.0.0
+allow_anonymous true

docs/tenstar-esp32-c3/pinout.jpg

@@ -14,7 +14,6 @@ backend_packages = [
 [source]
 root_patterns = [
     "/src/python",
-    "/src/micropython",
 ]
 
 [flake8]
@@ -36,6 +35,8 @@ interpreter_constraints = ["CPython==3.10.*"]
 [python-infer]
 string_imports = true
 
+[tailor]
+ignore_paths = ["src/micropython/**"]
 
 [docker.registries.ghcr]
 address = "ghcr.io/xlevus/gymkhana"
@@ -44,4 +45,4 @@ default = true
 [docker]
 env_vars = [
     "DOCKER_HOST",
-]
+]

firmware/ESP32_GENERIC_C3-20240222-v1.22.2.bin

@@ -7,5 +7,10 @@
         python310
         ansible
         glibcLocales
+        esptool
+        mpy-utils
+        picocom
+        mpremote
+        micropython
     ];
 }

firmware/ESP32_GENERIC_S3-20240222-v1.22.2.uf2

@@ -0,0 +1,22 @@
+PORT := "/dev/ttyACM0"
+BAUD := "115200"
+
+.PHONY: repl
+
+repl:
+	picocom -b $(BAUD) $(PORT)
+
+sync:
+	mpy-sync --baud $(BAUD) --port $(PORT) --reset .
+
+watch:
+	mpy-watch --baud $(BAUD) --port $(PORT) --reset .
+
+reset:
+	mpy-reset --baud $(BAUD) --port $(PORT)
+
+reflash:
+	esptool.py --chip esp32s3 --port $(PORT) erase_flash
+	esptool.py --chip esp32s3 --port $(PORT) --baud 460800 write_flash -z 0x0 ../../../firmware/ESP32_GENERIC_S3-20240222-v1.22.2.uf2
+	mpremote mip install logging
+	mpremote mip install github:peterhinch/micropython-mqtt

pants.toml

@@ -0,0 +1,23 @@
+import mqtt_as
+
+def configure_mqtt():
+    import network
+    import json
+
+    wlan = network.WLAN(network.STA_IF)
+    wlan.active(True)
+
+    try:
+        defined_networks = json.load(open("wifi.json", "r"))
+    except OSError:
+        return None
+
+    available_networks = {x[0].decode() for x in wlan.scan()}
+
+    for row in defined_networks:
+        if row['ssid'] in available_networks:
+            print(f"Network: {row['ssid']}")
+            mqtt_as.config['ssid'] = row['ssid']
+            mqtt_as.config['wifi_pw'] = row['key']
+            mqtt_as.config['server'] = row['mqtt']
+            return