OLED Display 16x2... doesn't work

[TheOldPresbyope]

Try the gpio cmd

Code:

pi@rp3:~ $ gpio
Usage: gpio -v
      gpio -h
      gpio [-g|-1] ...
      gpio [-d] ...
      [-x extension:params] [[ -x ...]] ...
      gpio [-p] <read/write/wb> ...
      gpio <read/write/aread/awritewb/pwm/clock/mode> ...
      gpio <toggle/blink> <pin>
      gpio readall/reset
      gpio unexportall/exports
      gpio export/edge/unexport ...
      gpio wfi <pin> <mode>
      gpio drive <group> <value>
      gpio pwm-bal/pwm-ms
      gpio pwmr <range>
      gpio pwmc <divider>
      gpio load spi/i2c
      gpio unload spi/i2c
      gpio i2cd/i2cdetect
      gpio rbx/rbd
      gpio wb <value>
      gpio usbp high/low
      gpio gbr <channel>
      gpio gbw <channel> <value>
pi@rp3:~ $

For those of you following along at home, the version of gpio in my moOde player doesn't know about the new RPi 3B+ and the readall option fails (other options apparently do work, however).

Code:

pi@moode:~ $ gpio readall
Oops - unable to determine board type... model: 13

pi@moode:~ $ gpio -v
gpio version: 2.44
Copyright (c) 2012-2017 Gordon Henderson
This is free software with ABSOLUTELY NO WARRANTY.
For details type: gpio -warranty

Raspberry Pi Details:
Type: Unknown13, Revision: 03, Memory: 1024MB, Maker: Sony
* Device tree is enabled.
*--> Raspberry Pi 3 Model B Plus Rev 1.3
* This Raspberry Pi supports user-level GPIO access.

Do not follow Gordon's wiringPi update instructions in his Mar 14 post to wiringpi.com. As of today, at least, his wiringpi-2.46-1.deb file still contains gpio v2.44 (and yes, I've messaged him about it).

Instead clone his repo and build a fresh wiringPi

Code:

git clone git://git.drogon.net/wiringPi
cd wiringPi
sudo ./build

 
Now,

Code:

pi@moode:~ $ gpio -v
gpio version: 2.46
Copyright (c) 2012-2018 Gordon Henderson
This is free software with ABSOLUTELY NO WARRANTY.
For details type: gpio -warranty

Raspberry Pi Details:
 Type: Pi 3+, Revision: 03, Memory: 1024MB, Maker: Sony
 * Device tree is enabled.
 *--> Raspberry Pi 3 Model B Plus Rev 1.3
 * This Raspberry Pi supports user-level GPIO access.

and 'gpio readall' reads all the pins on the RPi 3B+.

Regards,
Kent