RX1 AND TX1 connection

Development Boards Artemis
1

Hello,

I would like to connect a GPS on TX1 and RX1 with my artemis ATP red board.

Can someone tell me what are the number of the pin to declare? Is it RX1 and TX1 or a number?

I saw the MCU pad fonction mapping and I dont see TX1 and RX1…

Thanks for answer.

2

Don’t need to declare any pins, just use Serial1 in code and that’s how to talk to RX1 and TX1.

3

OK, thank you, that works.

4

Hello,

I also used RX1 and TX1 on Pin9 and 10 to read some GPS Infos!. But with my Sparkfun RedBoard Nano the compiler writes “undefined reference to `Serial1’”.

What can I do there ?

5

Looks like there’s an error in the board definitions for the Artemis Nano. It’s been reported and will hopefully be fixed soon.

6

Hello,

that is ok. Thank you very much for the info!

I set in my arduino code:

“UART ss(9,10);”

When I used "ss.println(“OK”); " it works on the Pin 9 and the serial port to the USB-Port.

I set the Baudrate for Serial.begin(115200);

When I set ss.begin(9600);

It set both rate to 9600 !!.

Thank you for you help. I am a electronic technican and programming I learn it for me self, but not all things !

Bernd

TS-Chris:
Looks like there’s an error in the board definitions for the Artemis Nano. It’s been reported and will hopefully be fixed soon.

7

try UART Serial1 (D9, D10) (so include ‘D’) or try UART Serial1(SERIAL1_TX, SERIAL1_RX);

On the Nano :

SERIAL1_TX / D9 is referring to pin 39 of the Artemis, which is connected to pin labeled 9 on the board.

SERIAL1_RX / D10 is referring to pin 40 of the Artemis which is connected to pin labeled 10 on the board.

8

Hello,

when I used UART Serial1… the USBTX/RX not work.

I like to read RX1 with GPS Datas and send it to the PC with Serial.println(Serial1.read);

But it works not…

Bernd

9

Next to defining Serial1 as I indicated (you have to do that), this could be a known issue where I worked on before (https://github.com/sparkfun/Arduino_Apollo3/issues/349).

It was a hard issue to crack and while I have provided the root and solution to Sparkfun It has not been solved yet in the code.

But what you can try to do is connect a 10K resistor between +3v3 and RX1… the whole problem is gone. Connect a device to RX1… the problem is gone. More details in the github link.

interested in your finding.