bluepill-momo

A minimal example using USB CDC.

Try out

Build by:

xargo build --release

Extract the image:

arm-none-eabi-objcopy -O binary target/thumbv7m-none-eabi/release/bluepill-momo bp

Flash the image and test run (suppose the device is discovered as /dev/hidraw3):

sudo -i
# in root:
cat /dev/hidraw3
# at the same time try to write to the device to send HID reports
printf "\0heeeeeeeeeeeeeeeeeeeeeelo\n\0" > /dev/hidraw3
printf "\0wooooooooooooooooooooorld\n\0" > /dev/hidraw3
printf "\0ooooooooooooooooooooooops\n\0" > /dev/hidraw3