![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://raspberry-pi.fr/wp-content/uploads/2020/07/gpios-diagram-939x528.png)
Activate the TTL serial port of the Raspberry Pi and verify that it is working. – Howto Raspberry Pi
![I am trying to get klipper to communicate over uart between the Rpi 3B+ and SKR Mini E3 V3. The picture shows what i've done so far, but it seem like whatever I am trying to get klipper to communicate over uart between the Rpi 3B+ and SKR Mini E3 V3. The picture shows what i've done so far, but it seem like whatever](https://preview.redd.it/i-am-trying-to-get-klipper-to-communicate-over-uart-between-v0-3wwpdt6fw4oa1.png?auto=webp&s=3869f091503eff9bb09150c0e458d75686f651d4)
I am trying to get klipper to communicate over uart between the Rpi 3B+ and SKR Mini E3 V3. The picture shows what i've done so far, but it seem like whatever
![Amazon.com: Serial Expansion HAT I2C Interface 2-ch Extra UART Plus 8 programmable GPIOs for Raspberry Pi Zero W WH 2B/3B/3B+/4B @XYGStudy : Electronics Amazon.com: Serial Expansion HAT I2C Interface 2-ch Extra UART Plus 8 programmable GPIOs for Raspberry Pi Zero W WH 2B/3B/3B+/4B @XYGStudy : Electronics](https://m.media-amazon.com/images/I/61E-G42RK4L._AC_UF350,350_QL80_.jpg)