UARTs on CubeCell GPS

[ozforecast]

We’re developing a new product and I have been experimenting with the CubeCell range which are very nice products and well suited to what we need to do. I presently have an AB-02. We’re using TX2/RX2 to interface with a sensor. I understand that TX1/RX1 are the same UART as the USB interface so they’re not really available for the user?

I’d also like to add GPS functionality. If I understand correctly, on the CubeCell GPS, the Air 530 uses the second UART (TX2/RX2)?

What I really need is three UARTS, one reserved for the USB interface, one for the GPS and one available for the user/sensors. Please let me know if any of your hardware configurations are suitable for this.

Thanks!

[jasonXu]

hi,

Here is the code of the software UART:

HelTecAutomation/ASR650x-Arduino

Maybe you can use it to be the third UART.

And maybe you can also refer this topic:

Cubecell Software Serial

I’m hacking on a SoftwareSerial implementation now. Lack of an oscilloscope makes it a bit harder, but I’m basically taking the standard SoftwareSerial impl and mixing in the ASR6501 hardware pin stuff from the Wire library. It…compiles It will take a bit more work to test it and get it working, but I’m not seeing any hard blockers (if someone wants to point some out, save me some pain!). Maybe there’s some timing stuff, but I’m only looking for 9600 (for gps connectivity), and e…

[ozforecast]

Thanks Jason. A hardware UART would be nice for the interrupt functionality but thanks for the suggestion of SoftwareSerial.