Nicla Vision's UART communication

Arduino Boards
1

Hello,

I’m developing with Nicla Vision.

If the firmware is MicroPython: c9e8710 OpenMV: v4.3.1-dirty HAL: v1.9.0 BOARD: NICLAV-STM32H747,
What pin of Nicla Vision and number of UART(?) should be used for serial communication?

Thank you.

2

Hi, it’s UART4. It’s on PB8/PB9 which are Pins 1/2 on the external header. P2 should be TX and P1 should be RX.

3

Hi,

Firmware OpenMV v4.4.2; MicroPython v1.19-omv-r6; NICLAV-STM32H747 was able to communicate with the method you taught,
but Firmware MicroPython: c9e8710 OpenMV: v4.3.1-dirty HAL: v1.9.0 BOARD: NICLAV-STM32H747 was displayed “ValueError: UART(4) doesn’t exist” and could not be executed.

Please tell me how to communicate by firmware MicroPython: c9e8710 OpenMV: v4.3.1-dirty.

Thank you.

4

It can’t. It doesn’t have the right code in it.