Rowetelposts some simple examples showing how to use the Codec 2 and FreeDV API in C and Python applications.
Some of the other examples have grown a little too full featured and complex so I thought it might be useful to show the simplest possible programs. Instructions at the top of each file.
The Quisk SDR is a fine example of a GUI application that uses the FreeDV API.
I’m intrigued by the idea of using the FreeDV API with other languages such as Python. I first became aware of this idea through this FreeDV KISS TNC project from xssfox.
Using similar techniques Mark, VK5QI, has implemented a High Altitude Balloon (HAB) telemetry library using a fork of C modem/protocol code from Codec 2 combined with Python. The project includes a nice Python GUI application for receiving HAB telemetry.
Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.