Uses Raspberry Pi with Dallas DS18B20 sensors and BMP180 for pressure. Uses udp comms to Wemos D1 mini for switching relays for pump and pond heater. Monitors Koi pond temperature and shack (with water pipes in loft) sending email and ThingTweet update

NodeMCU V3 and DHT22/11 reading temp and humidity sending email/text alerts about High and Low Humidity with Google SMTP server to Verizon (Comcast) cell.