* Field 1-3: Solar panel 50x50mm (2V, 70mA), D1 Mini Pro in DeepSleep (4min) and ESP-Now. Sending to ESP32 (gateway) which logs to ThingSpeak. * Field 4-8: Solar panel 100x60mm (6V, 1W), D1 Mini in DeepSleep (5min) and WiFi logging to ThingSpeak.
Readings of Temperature is sent approx 15 minutes when device awakes from Deep Sleep modem, Patrick Crawlspace.
Simple weather station by using Ti HDC1080 temperature & RH sensor and ESP8266 module configured in deep sleep mode. The whole unit is powered by 1000mAH lipo battery and a small solor panel (below 1W).