Software Defined Radio is an exciting technology and it was great to explore the possibilities when applied to the BeagleBone with cheap DVB-T USB sticks. It was an unexpected amount of fun to hear the BBB tune and play a FM station! Nice to have some hams on hand, too.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.
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Using the RTL-SDR is great for very high or ultra high frequency work, but doesn’t go low enough for HF amateur radio use. I wrote code for the PRU that uses an external DAC and synthesizes SSB modulated PSK31 encoded data on the 80m and lower bands. Details and source code: http://trmm.net/Soft_SSB
Thanks for sharing Trammell! You never fail to impress!