Use 2 UART Devices

[IBanc]

Hi,

Is it possible to use on Edison 2 devices that uses UART tx rx? I know on Edison we have 1 TX 1 RX. But what if i want to use GROVE GPS and GROVE GPRS at the same time, is it possible to 'emulate' GPIO pins as TX RX pins?

And if yes, is it difficult?

Thanks!

[FIvan · Accepted solution]

The Edison has 2 Serial ports.

If you disconnect the USB-to-Serial FTDI chip, you can connect 2 Serial devices.

Otherwise, an UART-to-I2C adapter could be easier to use. It's essentially Arduino with two ports. I don't know if it needs programming and I'm not sure about the voltage level. The Atmel microcontroller should work on 1.8V.

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