Alan Garfield

@alangarf
181 Followers
73 Following
141 Posts

Posts may contain random electronics, woodworking, ranting and traces of peanuts.

VK2LAG

CallsignVK2LAG
@brouhaha mine has always been FOMO - Fantasizing Of Missing Out.
@shtrom I forgot I found that too.
@brouhaha you can run MacOS on a Mac in the AWS cloud. Start one. Run automated builds. Shutdown. You could get really far without much money. Just a thought.

Another day, another SDR post. Following my "series" of STM32G431 with embassy posts so far it now has a PWM controlled analogue s-meter display!

#hamradio #homebrewradio

https://youtu.be/kvnnYvCPlYQ?si=Bvty3j2oS1WMNJVv

STM32G431 SDR - Now with analog S-meter.

YouTube

Successfully integrated an S-meter into the STM32G431 SDR project. Really happy with the results so far. The next phase will be developing the transmit functionality.

#hamradio #homebrewradio

https://youtu.be/e6Ayrndkbf8?si=2auk_MWa9x96w5Y6

STM32G431 SDR - Now with an even better s-meter!

YouTube

And this is the second part of my embassy-rs Rust SDR transceiver project. Now with working SSB filtering. It's using a 14 pole differential all pass phasing network for modulation (tba) and demodulation. It works pretty well I think. I really am liking embassy-rs.

#hamradio #homebrewradio

https://youtu.be/vMqo8NDkoYA?si=dr-JNdehsx6cVcjh

STM32G431 SDR now with Upper and Lower Sideband

YouTube

This is a video of my STM32G431 based SDR transceiver. Previously a fully working radio I built with the firmware written in C++. I was never really happy with the interface, and I got bored with C++. So I took up the challenge of a redo of the firmware in Rust using async embassy-rs and a new control interface (in this case running a RPi Pico also running Rust). This is its first step as a working receiver. #hamradio #homebrewradio

https://youtu.be/o7J_LPqK1NE?si=eC2gYkZaOmhFWpJx

STM32G431 SDR written in Rust using Embassy-rs

YouTube
Started working on a small temp/pressure/humidity display thingy based a Bosch BMP280 sensor and an STM32F103 that I had drifting around my office. A few hours later and I have I2C and UART working. All bare metal as I like twiddling the bits myself. I might get an e-ink display going tomorrow if I have the motivation. We’ll see… #embedded #development

If you have a pair of these awesome wire strippers and you want to replace the blade, instructions are inside the backing paper in the package. Don't do as I did, searching internet high and low for instructions.

Then don't ask an AI with this specific model number as it will be very specific and legitimate sounding with instructions for another pair of RS Pro strippers that require the removal of an 3 mm pin.

THESE DO NOT!

These are amazingly made, but f@#$ me they are hard to reassemble.

@trcwm now you just need to find that Bitcoin wallet from 15 years ago!