Stars
Tiny, cheap, simple, accurate, self powered resistive SWR and power meter for SOTA and back packers
Build a SDR SW/MW/LW Receiver with a Raspberry Pi Pico
This is a demodulator multimode AM SSB CW for quadrature input signal (es. taken from ElkSDR-UNO receiver or QRPLab Receiver o similar).
This is a simple SDR receiver based on Elektor SDR module and other two modules: Arduino UNO and DF Robot display & buttons for controller. See the pictures and video .
Sigma Delta Modulation for RP2040, ESP32, Teensy
Audio Filter DSP for Shorthwave Receiver. This Is a Digital Signal Processing to compute the audio of a Radio receiver. The project Is based on the Raspberry Pico pi board. The project implements s…
WSPR beacon for Raspberry Pi Pico, based on pico-hf-oscillator library. It doesn't require any hardware - Pico board itself only.
Digital controlled radio frequency oscillator based on Raspberry Pi Pico (1 Hz to ~32.333 MHz band). RTTY, MFSK, freq sweep examples are included.
An active RF probe based on the 2SC3356 transistor available from many sources.
A Schottky RF noise source based on the BAT17 diode
Vector Network Analyzer based on the STM32F103C8T6 bluepill
Layout of WA2EBY amplifier in Kicad, licensed CC-BY-SA 4.0
ADX - Arduino Digital Modes HF Transceiver Arduino Uno Shield
uSDX-x: Microcontroller SDR QRP Transceiver Designed for Experimentation
This is a single-band WSPR beacon that uses an si5351 for frequency synthesis and a ublox 6M GPS unit for time synchronisation.
Arduino sketch to convert morse code into plain text
A Morse Code Decoder based on WB7FHC's Simple Morse Code Decoder
Morse Encoder for the Arduino. This is the latest version, with built-in LCD and feature improvements
Various games for the #Attiny Arcade and similar platforms