How to use Serial1 (19,18 pin)

[tindevil]

hello,

I want to use serial1, but it doesn’t work, so I ask.

When checking the pinmap, Serial1 is identified as D18 (Tx) and D19 (Rx).

After initializing Serial1, the data is not received even if it is sent.

Can’t I use it because it’s an interrupt pin?

Requires TTL level communication. What should I do?

We have MAXI products.

thanks.

[mr-controllino]

Hi,

If you want to use Serial1 you can only connect it on the pinheader connector.

It is not possible to connect to the serial1 over the screw terminals.

regards

Marco

[tindevil]

Thank you. I’ve connected it to the pinheader. Serial 2 and Serial 3 operate normally.

Only Serial1 is wrong?.

Mr. CONTROLLINO wrote:

Hi,

If you want to use Serial1 you can only connect it on the pinheader connector.

It is not possible to connect to the serial1 over the screw terminals.

regards

Marco

[Lukas]

Please, see this thread

https://forum.controllino.biz/viewtopic.php?f=4&t=116” class=”bbcode_url”>https://forum.controllino.biz/viewtopic.php?f=4&t=116