Raspberry Pi Model B v.1 with wifi dongle, DHT11 tempearture/humidity sensor and LM293 light sensor. Part of a connected hydroponic system project.
A comparison between the humidity in the office and the ideal humidity calculated using outdoor temperature.
Digistump OAK acting as an arduino and pushing reading from 2 DS18B20 and a moisture sensor to thingspeak. From 09111 Chemnitz, Germany.
Running a WEMOS Lite + DHT32 of 3xAA batteries, out in the garden. To asses battery life.