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I have a ODROID C2 with Android 5.1. It has an UART pin.
I want to communicate with pic micro controller using UART serial communication.

I tried this. i can see uart port on device manager.but the problem is i cant install app on the device. it shows error: pkg: /data/local/tmp/com.example.windows10.uart_app Failure [INSTALL_FAILED_MISSING_SHARED_LIBRARY]

DEVICE SHELL COMMAND: pm uninstall com.example.windows10.uart_app Unknown failure (Failure)

Aadhi
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1 Answers1

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First, u need to check the voltage level of PIC UART. Maybe it is 5V.

And, ODROID C2 uses 3V3 UART level. (Must use UART1 from C2 GPIO. if u use UART0, u'll need some modifing at boot.ini)

Second, test with some serial APP. if the APP shows same error, u'll need to give permission as

chmod 777 /dev/tty1

Also, why don't you use Hardkernel's forum?

EDIT Sorry, #chmod 777 /dev/tty1 is wrong. retry #chmod 777 /dev/ttyS1

Community
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손호성
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  • i had used a code from github. But i got the same error. Error:: pkg: /data/local/tmp/uart_com Failure [INSTALL_FAILED_MISSING_SHARED_LIBRARY] DEVICE SHELL COMMAND: pm uninstall com.example.windows10.uart_com Unknown failure (Failure) – Aadhi Aug 21 '17 at 08:59
  • Did you run test with terminal? if not, try it "echo "1" > /dev/ttyS1 – 손호성 Aug 28 '17 at 06:09
  • Try after "sudo chmod 777 /dev/ttyS1" – 손호성 Aug 30 '17 at 03:15