This is the Raspberry Pi OS (Raspbian) repository for EDATEC products powered by Raspberry Pi. You could install board support packages here.
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curl -sS https://apt.edatec.cn/pubkey.gpg | sudo gpg --dearmor -o /etc/apt/trusted.gpg.d/edatec-archive-stable.gpg
echo "deb https://apt.edatec.cn/raspbian stable main" | sudo tee /etc/apt/sources.list.d/edatec.list
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sudo apt update
# install stmpe-adc-dkms for example
sudo apt install stmpe-adc-dkms