Build own IoT enabled weather station
After performing some stand alone tests with my DHT22 weather sensor on NodeMCU board...
Monthly Archives: December 2018
MQTT protocol – Telemetry for IoT
Message Queuing Telemetry Transport (MQTT) is a light weight message exchange protocol. This protocol...
Connecting 220V AC load to relay controlled by raspberry pi GPIO
Read http://www.mka.in/wp/raspberry-pi-3b-with-5v-4-channel-relay/ first. After gaining confidence in simple relay control using raspberry pi GPIO...
Raspberry pi 3B with 5V 4 channel relay
I have been using raspberry pi boards since long. So far I have used...