aht10_driver

Linux device driver for AHT10 temperature sensor

Compiling the module for Linux (arm64)

export ARCH=arm64

export CROSS_COMPILE=aarch64-linux-gnu-

export LINUX_DIR="path-to-linux-precompiled-headers"

make

Compile the device tree overlay

dtc -@ -I dts -O dtb -o aht10_overlay.dtbo aht10_overlay.dts

Compile the demo app

cd app

make

Install the module on target (Raspberry Pi 4):

sudo dtoverlay aht10_overlay.dtbo

dtoverlay -l

sudo insmod aht10.ko

dmesg | tail

Run the demo app on target

sudo ./aht

NOTE

The floating point temperature calculation is done in the demo app (in Linux User Space).

Remove the Module and Overlay

sudo rmmod aht10

sudo dtoverlay -d aht10_overlay