Imagine being outside cell phone range. How do you broadcast where you are for help? Enter an APRS tracker to broadcast location info.

Monitoring 100 year old factory processes are hard, but it gets easier, safer and more reliable with a network of nRF24L01 RF transmitters.

I built myself a voice controlled home theatre, with background light, screen and projector control. With an ESP8266 and an Arduino Nano.

Modify RC boat and maneuver using Windows Phone or Window Laptop.

Make your own RC toys, gadgets, stuff.

This is a project I put together that is basically two sensor stations: a base and a remote station.

Smart Cash Box guard to secure ATM cash during transit which gives emergency alert with a live tracking features.

Turns your fan on and off by sensing the temperature.

Control any of the 55 RGB LEDs on the tree, let Santa twerk for you, control a model railroad, or display custom text on an LED dot matrix.

This is a very simple and reliable hydroponic system that you can buy for a very cheap price.

GeekTurnik is the first WiFi-connected pull-up bar.

You can sniff an KNX RF network by an CC1101 radio transceiver. I sniffed my Siemens Synco Living Home automation system

Small temperature/humidity/atmospheric pressure monitor using Sigfox to transfer the data. Powered by solar energy to monitor beehives.

Building a customized bluetooth controller using Arduino.

Scan and draw ruff sketch of distances ahead just like RADAR using UltraSonic Distance Sensor.