PCB arrived today.
Initial Setup
Soldered JP1,2,3 (debug LED, power , and charge indicator)
Set to ESP32 DevKit
Blink is working and printing to serial console on programmer UART
Initial TODO
- Hello World!
- Evaluate charger circuit
- Add compiler directive for non-Heltec software build
- ADC review for VBAT
- ADC review for VSOLAR
- Digital CHGST pin enable
- Rain gauge interrupt routine back online
- I2C evaluation with BME280
- Weather direction evaluation
- Wind speed evaluation
- New LoRa radio install for 915MHz
- Calibrate ADC for VBAT
- Calibrate ADC for VSOLAR
Evaluation Notes
Charger Circuit
LED is on when charging
Mounting alternate pinout LoRa radio
I’ll be using Caption tape to insulate the pads from the module electrical points. The good news is that the GND pads and antenna match, so those will be soldered directly.