CQ CQ CQ de KJ6FO If you are Licensed Ham radio operator, we can talk on the air. I run an Allstar node running at my home QTH. This node is accessible from any other Allstar node in the world. You can also connect via EchoLink from anywhere across the globe if you have an […]
The flight controller of Flying Squirrel #1 is the brains of the flight. The controller will measure the environment around the balloon, format the data into a Telemetry message and transmit the telemetry signal back to the ground using the chosen protocol (FSQ) for the flight. The flight controller will also manage the power to […]
Now that I have a list of protocols and a general plan to transmit telemetry on the 20 meter Ham bands, how do I get “on the air”? This post will describe the transmitter hardware for the telemetry system. Generating Radio Frequency – There is a board for that. After a lot of searching an […]
I found this helpful diagram on how much current an Arduino can handle on its pins. Please follow and like us:
Sometimes you need to be able to turn devices on and off from your Arduino. If the current being drawn is low enough (under 40 Ma MAX, 20Ma recommended) then you can just use the IO pins of the controller to turn the device on and off. The Blink example program does exactly this with […]
Beautiful Squirrels Engineering – a similar site – http://beautifulsquirrelsengineering.com/ The Fourier Series Animated – https://www.youtube.com/watch?v=r18Gi8lSkfM Please follow and like us:
What’s the frequency Kenneth? The big unknown for me, at least at the start, is how am I going to know where the balloon has traveled. I need to be able to send radio telemetry from the balloon back to the ground somehow. My stated project goal that the balloon be capable of global circumnavigations, […]
In the early days of radio, hams used Morse code to communicate over radio. The speed of sending Morse code, like the speed of a typist, depends on the skill of the operator. Typical Morse speeds might be around 13-20 words a minute. Having to send a commonly used phrase like “Can you change frequency […]
