06/07/2021 at 18:37 •
at least I'm trying to find that out. The clones from aliexpress are supposed to be only able to program st chips. But I want to use it to program some SAMD-21 chips. Never done that as well. So this is a link drop first. Figuring it out for MAC OS.
install open-OCD via homebrew
for unlocking the stm for new firmware go here
install new firmware called cmsis-dap
get this file
install with this line
openocd -f interface/stlink.cfg -f target/stm32f1x.cfg -c "init" -c "halt" \ -c "flash write_image ./CMSIS-DAP-STLINK21.hex" -c "shutdown"
doing this to flash arturos latest keyboard firmware, had to install arm gcc first. Brew doesn't work as it's not trusted. Downloading here helped.
to compile arturos fine firmware, you need to add the ARM stuff to your path, otherwise you compile and wonder why he wont find "gcc-arm-none-eabi" again.
01/05/2020 at 18:01 •
2019 Bigger Projects
- #Club Matrix
Array of 10 8x8 WS2812B LED matrices, controlled by a Raspberry PI through a DMA library. Images can be send as UDP packages to the matrix, if you happen to know the IP address.
- SX-64 inspired Raspberry PI case
Inspired by portable computers from the 80ies, I started to build a case around a Raspberry PI with 10mm extrusion profiles and lasercut panels to mount stuff to. https://www.youtube.com/watch?v=vXGr7-_U_tY
- #400 LED XY oscilloscope
For another video done for "elemen14presents", I cobbled together schematics out of Forrest Mims III's engineers notebook to make an LED oscilloscope that has 20 x 20 10mm LEDs.
- #LED handheld
This monster pixel game uses some tricks like charlieplexing, soldering LEDs upside-down to shine through the PCBs and hours of sanding on a 3D printed case.
- plenty other projects for element14presents
Here's a list of all my appearances as a video host for element14presents, plus some extra episodes of livestreams of the makercast - podcast that me and some other youtubers started.
- #Club Matrix
11/26/2019 at 15:50 •
So I've made this thing for element14 presents, never really had a set and forget PI to work on. I do like the optics of the SX-64 very much and all the other "portables" from the 80ies. I went with makerbeams 10x10mm aluminium extrusions for the frame and some lasercut MDF to hold everything together. Still needs an enclosure, but I'm pretty happy with it.
I tried to make the 2K display work, but it was too flickery and I couldn't get it to work properly, so I switched to the official display.