Battery powered ESP8266 sensor

The ESP8266 is a powerful and inexpensive device. There is almost no need anymore to use proprietary RF protocols like the nRF24 chip that was popular some years ago. However, there is one major problem when using WLAN: power consumption. When connected to a WLAN, the ESP8266 consumes at least 80mA – sometimes even more. … Continue reading Battery powered ESP8266 sensor