7 days ago •
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.
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.