u/_teslaTrooperin r/embedded • Recommends
On “I made the smallest possible USB device”
Not quite as small but using the PCB as USB-C connector has been done: link to this video
0:00 / 0:00
Bit Banging LCD + Touch + USB on the ch32v003
CNLohr
74K subscribers • 8 videos on Hallway
- Recommended by 1 person: 1 in engineering communities.
- Linked in the descriptioncnlohr/ch32v003_3digit_lcd_usb
Advanced. Deep dive for people who know the field.
138K views1 year ago1 recommendation
HardwareSystems programmingEmbedded systemsElectronics
Charles Lohr demonstrates how to drive a raw LCD, implement touch sensing, and bit-bang USB on a sub-ten-cent CH32V003 RISC-V microcontroller.
In this video, I use some insanely cheap parts to make a sub-$1-bill-of-materials device using ch32v003, RISC-V 48MHz ~10 cent processor to drive a raw LCD, as well as turning it into a touch sensor, and also communicating over USB back to a PC. Source Code / Docs: github.com/cnlohr/ch32v003_3digit_lcd_usb/ Support video creation on Patreon, here. My Patreon is per-video. patreon.com/cnlohrWhy it's here
1 person recommends thisWhat people say. Recommended as an impressive example of low-cost hardware hacking and using a PCB as a USB-C connector.