Serial Port 2

[saeed mahvis]

Hi

Yes. I want to do something like Peripheral_uart example but  I want to connect my serial device sensor  to NRF5340-DK via gpio pins available.

Then I want to get the sensor serial data by serial port of NRF5340 and then send it via BLE to a demanding device. In Peripherial_uart example

the direction of data flow is in opposite . 

[Sigurd Hellesvik]

Hi Saeed

From the luetooth: Peripheral UART documentation:
"When connected, the sample forwards any data received on the RX pin of the UART 0 peripheral to the Bluetooth LE unit."

This sample will send data from RX pin of UART via Bluetooth.
Does this answer your question?

Regards,
Sigurd

[saeed mahvis]

Thank you very much for your paying attention.

Yes the peripherial_uart sample seems to be a good choice for my project. But Uart 0 pins didn't come out on GPIO connector 

pins in NRF5340-DK development board. Can I use Uart 1 instead of Uart 0 in the peripherial_uart sample and if it is possible what is 

the logic level I should use 5v or 3.3v?

[Sigurd Hellesvik]

Hi

Uart 0 use pins 0x13, 0x14, 0x15 and 0x16. I found this in the zephyr.dst file:

You can use other pins than these.
In that case  you need  to change the pin configurations, you need to change the device tree. The nRF Connect SDK Tutorial - Part 2 describes how to change the device tree. I recommend the whole three part tutorial for learning how to work with NCS, it explained the concepts very well.

You should use 3.3v:
Look at the GPIO levels in the Regulators documentation of the nRF5340.

Regards,
Hellesvik

[saeed mahvis]

Hi again

Actually I don't understand the meaning of <0x16> and <0x14>.What is its equivalent GPIO pin number

in NRF5340-DK development board. As far as I searched the schematic of this board I couldn't find RX

and TX pins of Uart_0 to which you can connect your serial device.

[saeed mahvis]

Hi again

Actually I don't understand the meaning of <0x16> and <0x14>.What is its equivalent GPIO pin number

in NRF5340-DK development board. As far as I searched the schematic of this board I couldn't find RX

and TX pins of Uart_0 to which you can connect your serial device.