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    donde

    @donde

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    Latest posts made by donde

    • RE: New Adafruit generic OLED display driver for Raspberry PI

      I looked closer at box the display came and it said it is for SPI mode. I tried i2C and didn't light up. Then, tried SPI and still no success. Doesn't seem to be a RST pin. I see no pictures of the same pin arrangement on the Net. Looks to be a special display no one knows about. Guess I'll return it and hopefully the SSH1306 will be available soon, Sorry to take up so much room here is this comments section. Moderator, you can delete all I said on first post. donde

      posted in Blog articles comments
      D
      donde
    • RE: New Adafruit generic OLED display driver for Raspberry PI

      Screen Never Lights
      New to OLED. Waiting for SSH1306 1.3" display like on Adafruit website. Sent for SH1106 display instead. Pinouts are left to right: VDD VSS SCK SDA D/C CS1 FS0 CS2
      Using Pi Zero. Went through tutorial OK I think. 2 problems:

      root@raspberrypi:~# ls /dev/i2c*
      /dev/i2c-0
      root@raspberrypi:~# ls /dev/spi*
      /dev/spidev0.0 /dev/spidev0.1

      The first check returned /dev/i2c-1 instead of /dev/i2c-0
      The second response was OK.
      Now I wasn't at root when I did commands, but at user.
      Other problem I had to supply sudo for
      ./oled_demo --verbose --oled 6
      I received this:

      pi@raspberrypi:~/ArduiPi_OLED/examples $ ./oled_demo --verbose --oled 6
      oled_demo v1.1
      -- OLED params --
      Oled is : SH1106 I2C 128x64
      -- Other Stuff --
      verbose is : yes

      bcm2835_init: Unable to open /dev/mem: Permission denied
      pi@raspberrypi:~/ArduiPi_OLED/examples $ sudo ./oled_demo --verbose --oled 6
      oled_demo v1.1
      -- OLED params --
      Oled is : SH1106 I2C 128x64
      -- Other Stuff --
      verbose is : yes

      x: 9y: 0dy: 3
      x: 30y: 0dy: 2
      x: 111y: 0dy: 2
      x: 81y: 0dy: 4
      x: 41y: 0dy: 2
      x: 85y: 0dy: 5
      x: 7y: 0dy: 5
      x: 76y: 0dy: 2
      x: 72y: 0dy: 3
      x: 76y: 0dy: 4

      Nothing on screen!
      I wired it this way from Pi Zero
      Pi 5 volts to Vdd
      Pi GND to Display VSS
      Pi SCL to Display SCK
      Pi SDA to Display SDA
      IO25 to Display FSO

      No ID on Display, just this description:

      Features

      Self-luminous display for backlight
      High resolution: 128 x 64
      Viewing angle: >160 degree
      Supports many control chip: Fully compatible with Arduino, 51 Series, MSP430 Series, STM32 / 2, CSR IC, etc.
      Ultra-low power consumption: full screen lit 0.08W
      Voltage: 3V ~ 5V DC
      Working Temperature: -30 oC ~ 70 oC
      Module Size: 32.0mm x 35.50mm x 4.1mm
      SPI Interface, need 4 IO only.
      Driver IC: SH1106
      

      Package Includes

      1 x 1.3" SPI Serial 128X64 OLED LCD LED Display Module for Arduino UNO R3
      

      Not sure what try next. What turns on screen to see at least something?
      Thanks ... donde

      posted in Blog articles comments
      D
      donde