This page explains how to make a simplex repeater using a $25-$35 Raspberry Pi, a USB sound card, Python code, and a two-way radio. A simplex repeater is another name for a store-and-forward voice repeater. Contrary to a standard duplex repeater that operates on two frequencies simultaneously for receiving and transmitting, a simplex repeater initially […]
Rhe PeaterPiPyr – a simplex repeater using the Raspberry Pi Read More »
TNC-Pi is a unique variation of TNC-X made specifically to connect directly with the Raspberry Pi device. It has the option to connect to the Pi through either the Pi’s serial port or the I2C protocol. In this scenario, one Raspberry Pi can accommodate several TNC-Pi devices simultaneously by assigning each TNC-Pi a distinct I2C
TNC-X for Raspberry Pi (Packet radio) AX25 Read More »
To start, the SWR meter mentioned in this article isn’t completely homemade because I used the circuit from the Arduino Projects of Amateur Radio book as a reference. Even though I purchased the book and acknowledge the authors’ copyright, I will still share my diagram here. What is the reason? Initially, the design showcased in
DIY SWR and Power Meter Read More »
For my first project after getting the Raspberry Pi ($35 Linux computer) I wanted to extend on a very good blog post I read from MightyOhm about turning a cheap Wifi router into an internet radio: http://mightyohm.com/blog/2008/10/building-a-wifi-radio-part-1-introduction/ In that article he also had a cheap Linux device (the router) and was able to stretch it
Raspberry Pi Wifi Internet Radio Player Read More »
I have been emotionally attached to this particular piece of radio since I was a kid. It was always playing behind my back every morning while having breakfast in our kitchen. Now it’s one the fewest things left from my childhood making it something special to me. The radio was kept in a box for
1970s VEF 206 Pi Internet Radio Read More »
Introduction We live in uncertain times. The list of environmental problems seems to grow, while the solutions feel increasingly out of reach. But daunting as it may be, it is imperative that we address these issues. The earth is, in the words of Carl Sagan, “the only home we’ve ever known.” To not focus our
Creating a mesh sensor network using Raspberry Pi and XBee radio modules Read More »
Project Replaced by: https://www.hackster.io/Granpino/raspiplayer-internet-radio-and-mp3-folder-player-rev2-4-3ddfdf This internet radio and MP3 player uses a 3.5 HDMI LCD touchscreen for operation. The original project was published by Adafruit. https://learn.adafruit.com/raspberry-pi-radio-player-with-touchscreen/overview The project uses MPC, MPD and Pygame. The project has been evolving over time. I am still trying to incorporate automatic album images on the sreen. Installation: Download the raspbian stretch image
Raspberry Pi Internet Radio and MP3 Player with Bluetooth Read More »
Radio emissions from sky sources like Sun and Jupiter can be received and converted to digital domain for processing. UPDATE 3 – May 7, 2018 Please note that starting from version 9 the software makes usage of latest Skyfield version (1.3). You can install Skyfield using pip install skyfield It is no longer necessary to install using pip install
Radio-Astronomy with RTL-SDR, RPi and Amazon AWS IoT Read More »
Internet radio with MP3 player over Bluetooth. This revision includes internet connection indicator and Folder Player. Story RaspiPlayer Rev 2.4 Raspberry Pi internet radio player with MP3 over Bluetooth. The latest revision includes internet connection indicator, and Folder Player feature. Installation Download the full raspbian Stretch orBuster image and burn to a 8GB or bigger SD card. To
RaspiPlayer – Internet Radio and MP3 Folder Player Rev2.4 Read More »
Adapting Adafruit’s CircuitPython to use the RFM69HCW Radio FeatherWing on the Zynq-7000 series FPGAs. One of my most commonly used Raspberry Pi shields I discovered a few years ago is the 433 MHz RadioFruit RFM69HCW Transceiver Radio Bonnet from Adafruit. The RFM69HCW is a transceiver module with a wide operating frequency range, and all of
Pi OS for Zynqberry: Adafruit RFM69 Radio with CircuitPython Read More »
