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README.md 730b43cb3f first commit 2 years ago

README.md

Raspberry pi CM3

Enable SPI0

SPI0 is disabled by default. To enable it, use raspi-config, or ensure the line dtparam=spi=on isn’t commented out in /boot/config.txt

add dtoverlay=spi-gpio35-39 under dtparam=spi=on, then reboot

after reboot,make suer there is a /dev/spidev0.0


wget -O - https://raw.githubusercontent.com/clockworkpi/apt/main/debian/KEY.gpg | sudo apt-key add -

echo «deb https://raw.githubusercontent.com/clockworkpi/apt/main/debian/ stable main» | sudo tee -a /etc/apt/sources.list.d/clockworkpi.list

sudo apt update

sudo apt install devterm-thermal-printer

How to test

echo «this is a test» > /tmp/DEVTERM_PRINTER_IN