Micropython + LVGL firmware for ESP32 PSRAM and 16MB flash boards added
My personal project to learn Micropython and by utilizing LVGL on ILI9341 display
Wire connection diagram
| ESP32 Pin | ILI9341 PIN |
|---|---|
| 3v3 | VCC |
| GND | GND |
| 26 | CS |
| 33 | Reset |
| 27 | DC |
| 23 | SDI (Mosi) |
| 18 | SCK |
| 32 | LED |
| 19 | SDO (Miso) |
| 14 | T_CLK |
| 15 | T_CS |
| 13 | T_DIN |
| 12 | T_DO |
| 35 (not used) | T_IRQ |
I could not do with just one ESP32 device (and avoid proxy and MQTT) I could not achieve BLE + HTTP + LVGL in one ESP32 generic device (no PSRAM chip). LVGL does not play nice together with BLE so I came up with idea to split into two devices- Proxy and Central.
As main thermometers, capable of advertising data via BLE I've used cheap (4€) Xiaomi Thermometer LYWSD03MMC with custom firmware
It uses OpenWeatherMap as weather data provider. To use your location, edit sensor/weather.py @115 request url
Planned:
- OTA (Over-The-Air) updates
- Shopping list