All GPIO's are OFF mode

[vinicius]

Hi. I'm trying to use GPIO's of OrangePi PC+ and after install WiringOP, when I run the gpio readall, all my GPIO's Mode are showing OFF. I tryed enable in armbian-config, but I have only pps-gpio and w1-gpio, I tryed enable both but doesn't work too. Someone knows some solution? Thanks.

[Igor]

You don't need to install anything. This is a script I use on a very similar device:

 

#!/bin/bash
task(){
	gp=$1
        [[ ! -d /sys/class/gpio/gpio${gp} ]] && echo ${gp} > /sys/class/gpio/export
        echo "out" > /sys/class/gpio/gpio${gp}/direction
        echo "0" > /sys/class/gpio/gpio${gp}/value
        sleep 10
        echo "1" > /sys/class/gpio/gpio${gp}/value

}

task "$1"

 

doing this.

More info:

https://www.google.com/search?q=sunxi+gpio

[vinicius]

Hi Igor, thanks for your answer, but I tried it too (not your script yet, but commands export, direction, value in /sys/class/gpio). I don't know why doesn't work.

Edited August 15, 2022 by vinicius

[vinicius]

  

 +------+-----+----------+------+---+OrangePiH3+---+------+----------+-----+------+
 | GPIO | wPi |   Name   | Mode | V | Physical | V | Mode | Name     | wPi | GPIO |
 +------+-----+----------+------+---+----++----+---+------+----------+-----+------+
 |      |     |     3.3V |      |   |  1 || 2  |   |      | 5V       |     |      |
 |   12 |   0 |    SDA.0 |  OFF | 0 |  3 || 4  |   |      | 5V       |     |      |
 |   11 |   1 |    SCL.0 |  OFF | 0 |  5 || 6  |   |      | GND      |     |      |
 |    6 |   2 |      PA6 |  OFF | 0 |  7 || 8  | 0 | OFF  | TXD.3    | 3   | 13   |
 |      |     |      GND |      |   |  9 || 10 | 0 | OFF  | RXD.3    | 4   | 14   |
 |    1 |   5 |    RXD.2 |  OFF | 0 | 11 || 12 | 0 | IN   | PD14     | 6   | 110  |
 |    0 |   7 |    TXD.2 |  OFF | 0 | 13 || 14 |   |      | GND      |     |      |
 |    3 |   8 |    CTS.2 |  OFF | 0 | 15 || 16 | 0 | OFF  | PC04     | 9   | 68   |
 |      |     |     3.3V |      |   | 17 || 18 | 0 | OFF  | PC07     | 10  | 71   |
 |   64 |  11 |   MOSI.0 |  OFF | 0 | 19 || 20 |   |      | GND      |     |      |
 |   65 |  12 |   MISO.0 |  OFF | 0 | 21 || 22 | 0 | OFF  | RTS.2    | 13  | 2    |
 |   66 |  14 |   SCLK.0 |  OFF | 0 | 23 || 24 | 0 | OFF  | CE.0     | 15  | 67   |
 |      |     |      GND |      |   | 25 || 26 | 0 | OFF  | PA21     | 16  | 21   |
 |   19 |  17 |    SDA.1 |  OFF | 0 | 27 || 28 | 0 | OFF  | SCL.1    | 18  | 18   |
 |    7 |  19 |     PA07 |  OFF | 0 | 29 || 30 |   |      | GND      |     |      |
 |    8 |  20 |     PA08 |  OFF | 0 | 31 || 32 | 0 | OFF  | RTS.1    | 21  | 200  |
 |    9 |  22 |     PA09 |  OFF | 0 | 33 || 34 |   |      | GND      |     |      |
 |   10 |  23 |     PA10 |  OFF | 0 | 35 || 36 | 0 | OFF  | CTS.1    | 24  | 201  |
 |   20 |  25 |     PA20 |  OFF | 0 | 37 || 38 | 0 | OFF  | TXD.1    | 26  | 198  |
 |      |     |      GND |      |   | 39 || 40 | 0 | OFF  | RXD.1    | 27  | 199  |
 +------+-----+----------+------+---+----++----+---+------+----------+-----+------+
 | GPIO | wPi |   Name   | Mode | V | Physical | V | Mode | Name     | wPi | GPIO |
 +------+-----+----------+------+---+OrangePiH3+---+------+----------+-----+------+

The physical pin is 16, GPIO 68. Running the script, nothing happens passing with params 68.

 

 

Edited August 15, 2022 by vinicius

[vinicius]

Solved! With BC547 transistor...

Edited August 26, 2022 by vinicius

[bjorns]

what do you mean?

On 8/26/2022 at 9:47 PM, vinicius said:

Solved! With BC547 transistor...