Use an Android phone as an LCD display

VEX V5 Technical Support UNOFFICIAL Tech Support
1

Hello,

I have a question. Would it be possible to put a USB splitter into the cortex (make the one USB port into 4) and connect the vexnet key and a micro USB cord to use an Android phone as an LCD display for debugging purposes.

Would this be possible?
Thanks
Nathan s

2

You can connect any USB device without affecting VEXnet by using the UART pins on the Cortex and communicating over that. You can find cheap USB to UART connectors on the internet.

3

If you are already buying this to turn UART into USB

https://www.amazon.com/Qunqi-FT232RL-Serial-Adapter-Arduino/dp/B014Y1IMNM/ref=pd_sim_23_4?_encoding=UTF8&pd_rd_i=B014Y1IMNM&pd_rd_r=0FZDH5ZYQRYBA1ZWCVBJ&pd_rd_w=7ATd5&pd_rd_wg=vOUQR&psc=1&refRID=0FZDH5ZYQRYBA1ZWCVBJ

I would suggest instead buying this and making the UART port work over Bluetooth to the phone. I have one of these and find it very convenient to be able to read and write msgs from my phone or laptop.

https://www.amazon.com/CHENBO-Wireless-Bluetooth-Transceiver-Arduino/dp/B00Y0D112O/ref=sr_1_4?s=electronics&ie=UTF8&qid=1486946798&sr=1-4&keywords=hc-05+bluetooth+module