Wifi-remote ESP8266 and DHT22 Temperature and Humidity Logger

These use a NodeMCU ESP8266 dev board, a DHT22 sensor, and a 10k pullup resistor.
Logs are sent by TCP MQTT to local collector, no qos or retries. The system deep sleeps after sending each measurement, waking once per minute.

NodeMCU Setup

Hold flash button and hit reset on NodeMCU

esptool --port /dev/ttyUSB0 --baud 115200 erase_flash
esptool --port /dev/ttyUSB0 --baud 115200 write_flash --flash_size=detect -fm dout 0 ~/esp8266/esp8266-20210902-v1.17.bin

Hit reset button on NodeMCU

ampy --port /dev/ttyUSB0 ls
ampy --port /dev/ttyUSB0 put main.py
ampy --port /dev/ttyUSB0 put environment.py
ampy --port /dev/ttyUSB0 put outside-config.json config.json
ampy --port /dev/ttyUSB0 ls

Hit reset button on NodeMCU

screen /dev/ttyUSB0 115200

Doing more with the data

See https://github.com/peterezzo/iotcloud