Add circuit.svg
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@ -4,6 +4,12 @@ Using RP2040 / Raspberry Pi Pico as a software-defined radio receiver.
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See the [blog post](https://blog.porucha.net/2024/pico-sdr/) for more informatiom.
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## Circuit
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![](circuit.svg)
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## Firmware
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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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circuit.svg
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circuit.svg
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<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="252" height="372">
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<g transform="translate(-874,-110)">
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<path fill="none" stroke="#777" paint-order="fill stroke markers" d="M 944 320 L 944 364" stroke-linecap="round" stroke-miterlimit="10" stroke-width="3" stroke-dasharray="" />
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<path fill="none" stroke="#777" paint-order="fill stroke markers" d="M 956 364 L 932 364" stroke-linecap="round" stroke-miterlimit="10" stroke-width="3" stroke-dasharray="" />
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<path fill="none" stroke="#777" paint-order="fill stroke markers" d="M 944 416 L 944 372" stroke-linecap="round" stroke-miterlimit="10" stroke-width="3" stroke-dasharray="" />
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<path fill="none" stroke="#777" paint-order="fill stroke markers" d="M 956 372 L 932 372" stroke-linecap="round" stroke-miterlimit="10" stroke-width="3" stroke-dasharray="" />
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<text fill="#777" stroke="none" font-family="sans-serif" font-size="12px" font-style="normal" font-weight="normal" text-decoration="normal" x="958" y="374" text-anchor="start" dominant-baseline="alphabetic">100nF</text>
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<path fill="none" stroke="#777" paint-order="fill stroke markers" d="M 944 416 L 944 432" stroke-linecap="round" stroke-miterlimit="10" stroke-width="3" stroke-dasharray="" />
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<path fill="none" stroke="#777" paint-order="fill stroke markers" d="M 954 432 L 934 432" stroke-linecap="round" stroke-miterlimit="10" stroke-width="3" stroke-dasharray="" />
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<path fill="none" stroke="#777" paint-order="fill stroke markers" d="M 950 437 L 938 437" stroke-linecap="round" stroke-miterlimit="10" stroke-width="3" stroke-dasharray="" />
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<path fill="none" stroke="#777" paint-order="fill stroke markers" d="M 946 442 L 942 442" stroke-linecap="round" stroke-miterlimit="10" stroke-width="3" stroke-dasharray="" />
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<path fill="none" stroke="#777" paint-order="fill stroke markers" d="M 944 320 L 944 288" stroke-linecap="round" stroke-miterlimit="10" stroke-width="3" stroke-dasharray="" />
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<path fill="none" stroke="#777" paint-order="fill stroke markers" d="M 944 256 L 944 224" stroke-linecap="round" stroke-miterlimit="10" stroke-width="3" stroke-dasharray="" />
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<g transform="matrix(0,-1,1,0,944,288)">
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<rect fill="none" stroke="#777" x="0" y="-6" width="32" height="12" stroke-linecap="round" stroke-miterlimit="10" stroke-width="3" stroke-dasharray="" />
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</g>
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<text fill="#777" stroke="none" font-family="sans-serif" font-size="12px" font-style="normal" font-weight="normal" text-decoration="normal" x="954" y="278" text-anchor="start" dominant-baseline="alphabetic">1MΩ</text>
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<path fill="none" stroke="#777" paint-order="fill stroke markers" d="M 944 224 L 1039 224" stroke-linecap="round" stroke-miterlimit="10" stroke-width="3" stroke-dasharray="" />
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<g>
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<text fill="#777" stroke="none" font-family="sans-serif" font-size="12px" font-style="normal" font-weight="normal" text-decoration="normal" x="1043" y="224" text-anchor="start" dominant-baseline="central">GPIO 10</text>
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</g>
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<path fill="none" stroke="#777" paint-order="fill stroke markers" d="M 944 320 L 1039 320" stroke-linecap="round" stroke-miterlimit="10" stroke-width="3" stroke-dasharray="" />
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<g>
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<text fill="#777" stroke="none" font-family="sans-serif" font-size="12px" font-style="normal" font-weight="normal" text-decoration="normal" x="1043" y="320" text-anchor="start" dominant-baseline="central">GPIO 11</text>
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</g>
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<path fill="none" stroke="#777" paint-order="fill stroke markers" d="M 944 224 L 944 177" stroke-linecap="round" stroke-miterlimit="10" stroke-width="3" stroke-dasharray="" />
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<g>
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<text fill="#777" stroke="none" font-family="sans-serif" font-size="12px" font-style="normal" font-weight="normal" text-decoration="normal" x="932" y="165" text-anchor="start" dominant-baseline="central">ANT</text>
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</g>
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<path fill="#777" stroke="none" paint-order="stroke fill markers" d="M 947 320 A 3 3 0 1 1 946.9997392252899 319.9604452245994 Z" />
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<path fill="#777" stroke="none" paint-order="stroke fill markers" d="M 947 224 A 3 3 0 1 1 946.9997392252899 223.96044522459943 Z" />
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</g>
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</svg>
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After Width: | Height: | Size: 4.1 KiB |
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