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Pi Pico Rx: A Breadboard Software Defined Radio Based on the RP2040 Raspberry Pi Pico

Signal Intelligence

Over on hackster.io we’ve seen a story about how maker Jon Dawson designed a self-contained software-defined radio based on the Raspberry Pi Pico that can receive 0 – 30 MHz, with up to 250 kHz of bandwidth. The Raspberry Pi Pico is a microcontroller board based on the Raspberry Pi Foundation’s own RP2040 chip.

The Pi Pico Rx’s front end consists of a Tayloe Quadrature Sampling Detector (QSD) mixer which makes use of the PIO (Programmable Input/Output) feature on the RP2040. The circuit also has an encoder knob for tuning and a small OLED screen.

Jon had originally created the Pi Pico Rx on a custom PCB, however, his latest work brings the cost down by showing that it can just as easily be implemented on a breadboard with through-hole components.

The full writeup can be found on Jon’s blog “101 Things”, as can the open source firmware. He has also uploaded a YouTube video explaining and demonstrating the project which we’ve embedded below.

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richblackhat

Signal Intelligence
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TechMinds: A Review of the RigExpert FobosSDR

Earlier this year the Ukrainian company RigExpert released the FobosSDR, and only recently has it become available to most people in the world via global resellers. FobosSDR is an RX-only…

Signal Intelligence
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HackRF and Portapack Featured in Recent Linus Tech Tips Video

Over on YouTube the Linus Tech Tips channel has recently released a video about the HackRF titled “It’s TOO Easy to Accidentally Do Illegal Stuff with This”. Linus Tech Tips…

Pi Pico Rx: A Breadboard Software Defined Radio Based on the RP2040 Raspberry Pi Pico

richblackhat

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