Lolin D1 Mini with Environmental Shields, Battery Shield and OLED Display for Portable Use
Lolin D1 Mini Ublox SAM-MQ8 GNSS Google Maps Sensor Position Tracker
Digistump OAK acting as an arduino and pushing reading from 2 DS18B20 and a moisture sensor to thingspeak. From 09111 Chemnitz, Germany.
Wemos D1 Mini TCP server with Dallas ds18b20 sampling temperatures updating via TCP over local in each location Raspberry Pi5 calls for temperature every 30 minutes (crontab), writes to a MySQL database and sends to Thingspeak.
Solar hot water panels. Controlled with ESP8266 Wemos D1 mini. Pump turns on to pump water when it's hotter outside.
wemos D1 mini and DHT11 temp and hum in the center of my coustom built computer
The CraftBeerPi temperature sensor logging for the brewery Wee Fassi.