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There's also things like the CH32V203 [1] which is a TSSOP-20 with hardware USB and costs around $0.81 in singles. The software side might be a little more ...
by unwind 2y ago
There's also things like the CH32V203 [1] which is a TSSOP-20 with hardware USB and costs around $0.81 in singles. The software side might be a little more ... challenging, though.
https://www.wch-ic.com/products/CH32V203.html https://www.wch-ic.com/products/CH32V203.html?
- 15155 2y agoCH32F series is more or less the same and actually has CoreSight SWD and clone STM peripherals
- zoobab 2y agoSoftware USB can also be done on the 10 cents CH32V003: https://github.com/cnlohr/rv003usb https://github.com/cnlohr/rv003usb
- hakfoo 2y agoThey offer some fairly usable example reference code for a lot of the on-chip functionality-- including USB peripherals. I was able to turn their CH32v3xx examples into a pretty capable custom-keyboard firmware.