Uses the GPIO3 pin of an ESP8266 to broadcast analog television signals. Broadcasts on broadcast channel 3 (60-66 MHz).
YAFB is an amateur radio fox transmitter designed for an ESP32-S2-Saola-1 and a NiceRF SA818.
Still being worked on and now works fairly well on my bench. Hasn't been tested yet in the field. As of Nov 2023 just sent in to have v4.1 of the board to be made. More updates soon.
My goal is to provide a way to make a cheap alternative fox transmitter. When done you'll be provided with all the files needed to make your own.
1W VHF or UHF transmitter (NiceRF SA818). Configure it over Bluetooth.
Welcome to 101 Things, a collection of projects that celebrate creativity and hands-on ingenuity. If you share a passion for making things, you've come to the right place. Each project uses simple designs, and basic tools, to push the creative boundaries of a home tinkerer. Join me on this exploration of crafting, coding, and constructing, as we unlock the magic of making, one project at a time.
This is a GPS/radio tracker for high altitude balloons. It uses a GPS receiver to determine its position, and a LoRa transceiver to transmit that position to the ground. It is written in C for the Pi Pico microcontroller, using the official C/C++ SDK. The resulting executable code can be downloaded to the Pico using a serial programming/debug cable as described in the Pico C/C++ SDK manual. You will need a means of receiving the telemetry from your tracker. One popular option is the Pi LoRa HAB gateway.
Frequency Range: 134~174MHz
Tx/Rx frequency independent
Channel space: 12.5/25KHz
CTCSS / CDCSS codes
UART interface
3.3~4.5V
An electronics project for patching together a small APRS transmitter module. The project is largely obsolete and unmaintained but it's good because it talks about the DRA818V radio module, which is pretty obscure.
A general purpose radio frequency transmitter for Raspberry Pi which doesn't require any other hardware unless filter to avoid intererence. It can handle frequencies from 5 KHz up to 1500 MHz. Plug a wire into GPIO pin 4 (hardware pin 7) and it'll broadcast just about whatever you tell it to. Has an installation script. It's recommended that you use a bandpass filter to minimize noise on the air. Works with just about every RasPi (except the B). Has a text based menu to control it. Defaults to 434 MHz (international free ISM band). You can even broadcast spectrogram pictures! Can even do POCSAG to activate pagers!
Pi-based FM Number Station w/ basic Speech Synthesis.