Display Example


miniMO's Display Example demonstrates how to use miniMO with OLED SSD1306 I2C screens. The program reads inputs attached to I/O 03, shows the readings on the screen, and toggles the outputs ON or OFF, depending on the value (more details here).

SOURCE CODE

Download from Github

MANUAL

I/O

  • 1&2: Outputs (ON or OFF)
  • 3: Input
  • 4: not used

SCREEN SETUP - HARDWARE

  • Locate miniMO's programming header, under the LED light
    • Note the vertical writing next to the pins, from bottom to top: GND, SCK, MO, MI, RST, VCC
    • Connect the Screen's VCC to the header's VCC
    • Connect the screen's GND to the header's GND
    • Connect the screen's SCL to miniMO's MI
    • Connect the screen's SDA to miniMO's MO
  • With the screen connected,
    • Load a battery in miniMO's holder
    • Connect all three pins of the Battery-External male header AT ONCE
      • The easiest way to do this is to get a three pin female header and wire or solder its terminals together

SCREEN SETUP - SOFTWARE

  • In oled.h , set the width, height, and orientation of your screen

OPERATION

  • Knob: Adjust the readings according to the input. Range: 0 - 255
    • If you'd prefer a wider range (0 to 1023), remove " >>2 " from line 79

ACKNOWLEDGMENTS

This program adapts the SSD1306xLED library by Neven Boyanov, as described here.