Using an ESP8266 and a simple circuit. I connected my Geiger counter kit to the internet where it serves a webpage and publishes to MQTT.
I built my own PiAware ADS-B receiver using a C.H.I.P computer.
Assembling the Rockmite ][ 20m ham radio CW (morse code) transceiver and receiving first transmissions. My first HF transceiver.
Weatherproof enclosure for rtl-sdr radio and RaspberryPi that is PoE (power over ethernet).
Or using a BeagleBone Black as a secure Tor gateway for your computer.
As a hobbyist and tinkerer, I am constantly in need of low voltage DC. Primarily 5V and 12V. Instead of spending money for a variable power supply (which are nice and I would absolutely love to have one) I decided to make one myself. I chose to utilize a computer …
My first experience with the rtl-sdr dongle and upconverter to receive various radio signals.
I passed the exam and am now a licensed ham radio operator.
I essentially stole this idea after seeing it at a friends party. However, I think that I improved on the concept some. Basically it is a regular cooler with a car battery and car stereo / car radio built in. This write up should serve as a decent How-To build a …
An Arduino powered model rocket or firework launcher. Requires passcode and key to operate variable launch sequence.