[OrangePi PC GPIO UART and Arduino]

On 15/02/2017 at 0:05 AM, martinayotte said:

For UARTs, you don't need those library, you only need to access kernel serial device, such /dev/ttyS1, using python-serial.

 

For example, the following piece of code will print any character received on RX :

import serial

serport = serial.Serial("/dev/ttyS1", 115200, timeout=1)
while True:
    while serport.inWaiting() > 0:
        c = serport.read()
        print c

 

Thanks for the tip!

I'm on Orange Pi Zero running  4.10.1-sun8i 

After importing pySerial, I tested this code:

import serial

port = serial.Serial("/dev/ttyS1", 115200, timeout=1)
print(port.name)

Unfortunately it fails with 'serial.serialutil.SerialException: Could not configure port: (5, 'Input/output error')'

 

Listing the ports using:  python -m serial.tools.list_ports , results in "no ports found"

 

I also tried adding the port using overlays as suggested in this post : https://forum.armbian.com/index.php?/topic/3651-uart-on-orange-pi-zero/#comment-26402

 

 

Any other suggestions?

 

Thanks,

 

ezpl

[Sending serial data using the UART on Orange Pi Zero]

I am just getting started using the Orange Pi Zero and installed Xenial 4.10.1. Currently I am using Python and am able to address the GPIO pins

(using this project: https://github.com/duxingkei33/orangepi_PC_gpio_pyH3)

 

However, I need to communicate with a serial device (projector) using RS232 on 9600 BAUD. For this, the built-in UART should do the trick (with an additional voltage converter).

Does anyone know how I can address this device from Python? Alternatively, is there a way to clock" an GPIO output to 9600 BAUD and manually send the data?

 

Thanks,

 

Ezpl