Trammell Hudson shared his SDR on BBB: Software Single Side Band transmitter project. Thanks to Drew for the tip.
I’m working on an embedded software-defined radio for sending PSK31 telemetry data that can run in the BeagleBone Black PRU (or perhaps repurposing the LCD interface) as well as smaller devices like the Teensy 3.1 with an embedded Digital-to-analog converter. Preliminary source is available from github….
BeagleBone Black PRU
Using a BeagleBone Black instead of the teensy opens up more useful spectrum. The DAC on the Teensy is limited to mostly audio frequency ranges, but the PRU can easily generate a smooth 2.5 MHz carrier. A simple R2R DAC isn’t the cleanest , but generates acceptable signal that was capable of being received a few meters from the IC-7000 without any amplifier.
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — Profile on iFixit (repair/takedowns and more)
Wearables — This one’s for all the Cosplayers out there
Electronics — Capacitor ESR
No comments yet.
Sorry, the comment form is closed at this time.