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# iot-contact
iot-contact is an IoT device to check if doors and windows are closed or open.
Furthermore roller shutter motors should be controlled.
## Usage
The content of this repository can be build with CMake and Ninja.
```
cmake -Bbuild -GNinja
ninja -C build
./fw/sign.sh
```
Exported files related to the printed circuit board (PCB) can be found in the
build folder.
```
tree build/pcb
```
The resulting firmware can be flashed via a ST-LINK debugger / programmer.
```
st-flash --connect-under-reset write build/fw/bootloader/zephyr/zephyr.bin 0x8000000
st-flash --connect-under-reset write build/fw/zephyr/zephyr.bin.signed 0x8040000
```
UART shell output can be retrieved with `picocom`.
```
picocom -b 115200 /dev/ttyACM0
```
Finally the firmware can be erased from the device with the ST-LINK.
```
st-flash --connect-under-reset erase
```
[1]: https://docs.kicad.org/
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