Building an indoor positioning system using ESP32 requires technology beyond GPS. While GPS trackers excel outdoors, indoor positioning system needs Ultra-Wideband (UWB) technology to achieve ...
// Some model of cheap Yellow display works only at 40Mhz // #define DISPLAY_SPI_SPEED 40000000L // 40MHz #define DISPLAY_SPI_SPEED 80000000L // 80MHz #define SD_SPI_SPEED 80000000L // 80Mhz ...
- CW mode : IQ band scope + keyer + CW auto-decode + waterfall - LSB mode : SSB transmit/receive (Si5351 phase modulation TX / Hilbert transform RX) ...
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