“Bring out your Raspberry Pi’s, computer or microcontroller based projects that are related to our fine hobby” said the invite! There is a special prize for the people’s choice award this month, kindly donated by our member The book “Raspberry Pi for radio amateurs” published by Elektor Electronics. https://www.elektor.com/raspberry-pi-for-radio-amateurs

Phil VK2BDF presented his room temperature controller, based on a fan heater and a PID controller with associated PC monitoring software:

A very “live” circuit
Computer-based monitoring of the PID algorithm

Gary VK2CRJ presented his multi-input ATV repeater controller:

DTMF-controlled repeater
Very neat wiring
lots of inputs!

Tim VK2BT presented his meteorological ballon tracker, a sample balloon and radiosonde:

Meteorological balloon, radiosonde and Raspberry Pi tracker
SondeHub tracking website

Carmel VK2CAR presented a portable APRS tracker and an LED Chess clock:

APRS transmitter and Chess clock
APRS transmitter and Chess clock

Brian VK2AXC presented his fusion of 19th and 21st Century technologies:

Morse code meets Arduino

Geoff VK2WA presented his Hydrogen-line space telescope, for detecting the Milky Way’s very weak radio signature:

Helical antenna for 1420MHz
H-line bandpass+LNA, RTL-SDR, Raspberry Pi

Nick VK2FS presented his deconstructed AZ/El rotator controller:

“Just imagine that this is in its final form!”

Clifford VK2CLF presented a Hermes Lite 2 SDR, he has been contributing to the project:

A very capable SDR

And the winner is…. Phil VK2BDF!! Phil wins the book “Raspberry Pi for Radio Amateurs”:

Carmel VK2CAR takes runner-up prize for her APRS tracker, chess clock, and an impressive story of terrifying a bus driver with her electronics.