Querying elasticsearch with REST json
You may like to read ELK installation and configuration and ELK with syslog and...
Create a simple CA to sign SSL certificates
Securing traffic on various apps in organizations or even in a small home lab...
IoT enabled Smart doorbell
How useful would it be if you are notified on phone with the photo...
Reliable machine to machine communication using MQTT QoS
MQTT messaging provides three levels of quality of service. Depending upon the requirement QoS...
IoT ready relay to operate 220v AC home appliances
When I am away from home during long vacations I felt need of having...
How to operate relay using NodeMCU
NodeMCU board is powered by ESP8266 WiFi unit which gives advantage of controlling circuits...
Build own IoT enabled weather station
After performing some stand alone tests with my DHT22 weather sensor on NodeMCU board...
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...