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![Activate the TTL serial port of the Raspberry Pi and verify that it is working. – Howto Raspberry Pi Activate the TTL serial port of the Raspberry Pi and verify that it is working. – Howto Raspberry Pi](https://howtoraspberrypi.com/wp-content/uploads/2020/07/raspberry-pi-serial-1-scaled.jpg)
Activate the TTL serial port of the Raspberry Pi and verify that it is working. – Howto Raspberry Pi
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