https://rfcorner.in/tags/low-power/Recent content in Low Power on Dhiru's NotebookHugoen-usMon, 09 Nov 2026 00:00:00 +0000https://rfcorner.in/posts/sub-1w-ads-b-receiver/Mon, 09 Nov 2026 00:00:00 +0000https://rfcorner.in/posts/sub-1w-ads-b-receiver/<p>My new ADS-B decoding system consumes <strong>less than 1W</strong> and costs <strong>under US$25</strong>. It runs standalone, handling everything from reception to feeding <a href="https://adsb.lol/">adsb.lol</a>.</p> <p>The hardware: <strong>RP2350 (Pico 2) + W5500 for Ethernet + Core2021-HF 'LoRa' module + NEO-7M</strong>.</p> <p>The <strong>Core2021-HF</strong> is a LoRa module that also handles ADS-B demodulation entirely in hardware. The <strong>NEO-7M</strong> is a u-blox GPS module.</p> <p>Power and data travel over a <strong>single Cat 6 cable</strong>, using an <strong>Adafruit passive PoE injector and extractor</strong>.</p>