LibAPRS is an Arduino IDE library that makes it easy to send and receive APRS packets with a MicroModem-compatible modem. Used in PicoAPRS by DB1NTO
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Receiving and transmitting of SSTV and HAMDRM (DSSTV)
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pico balloon payload tracker
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LightAPRS WSPR Tracker
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TRX with gps for telemetry
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WSPR-TX Pico Transmitter
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Arduino firmware for WSPR-RX Hardware Version 2.
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OGN Tracker implementation on ESP32 devices. It works with HELTEC and TTGO boards with sx1276 RF chip for 868/915MHz
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FT8 library. A C++ implementation of FT8 protocol, mostly intended for experimental use on microcontrollers.
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librpitx Radio frequency transmitter library for Raspberry Pi (B, B+, PI2, PI3 and PI zero). It is now the base of rpitx project, separate from application
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leansdr: Lightweight, portable software-defined radio.
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Raspberry Pi bareback LF/MF/HF/VHF WSPR transmitter.Makes a very simple WSPR beacon from your RasberryPi by connecting GPIO port to Antenna (and LPF), operates on LF, MF, HF and VHF bands from 0 to 250 MHz.
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ESP32 Fast Fourier Transform of Audio & WS2812B mapping
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ESP32-8266-Audio-Spectrum-Display
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Fast Fourier Transform for Arduino
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A spectrum analyzer VU meter running a 40kHz FFT on an ESP32
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This is a simple, inexpensive, transmitter and full-feature controller for conducting ARDF Foxoring competitions.
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Single Channel LoRaWAN Gateway: ESP32, RFM95 radio, arduino
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this is a extention up on the project of Robert Brown below the link https://sourceforge.net/projects/arduinomysqmskyqualitymeter
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Arduino compatible Sky Quality Meter using the TSL2591
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