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This is based on an existing project that reaches out to open www.openweathermap.org for weather and forecast data. I’ll be overlaying my sensor data for the current conditions.
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Wakes and gets subscription data from mqtt broker every 30 minutes
Pinout requirements (existing and new layout general purpose low power PCB design)
Pin Number (header) | ESP function | ESP32 v1 dev board reference (all on same row) | Raw ESP32 header |
|---|---|---|---|
1 | 3V3 | 1 | 3V3 |
2 | GND | 2 | GND |
3 | D2 | 4 | IO2 |
4 | RX2 | 6 | IO16 |
5 | TX2 | 7 | IO17 |
6 | D5 | 8 | IO5 |
7 | D18 | 9 | IO18 |
8 | D23 | 15 | IO23 |
Photo of ESP32 v1 dev board interconnect
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