2024-06-04 19:27:58 +02:00
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# Pico SDR
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Using RP2040 / Raspberry Pi Pico as a software-defined radio receiver.
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2024-06-04 19:29:35 +02:00
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See the [blog post](https://blog.porucha.net/2024/pico-sdr/) for more informatiom.
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2024-06-05 14:27:46 +02:00
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## Circuit
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## Firmware
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2024-06-04 19:27:58 +02:00
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1. Clone using `git clone --recursive` as this package is using a custom USB
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stdio library for better throughput and to avoid deadlocks.
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2. Build and flash the firmware as usual:
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```bash
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export PICO_SDK_PATH=/path/to/pico-sdk
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cmake -B build src
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cmake --build build
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picotool load -f build/pico_sdr.uf2
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```
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3. Start the USB serial to TCP bridge, setting the frequency to 88.2 MHz:
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```bash
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python util/bridge.py -f 88200000
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```
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4. Open `grc/PicoSDR-WBFM.grc` in GNU Radio Companion.
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5. Press `F6`.
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