Help with SSD1608 / 2.13" Adafruit e-ink

Meadow Development
1

I have got the e-ink display from Adafruit which I have wired and tried to run a sample application but the screen does not react.

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wiring:
source: Class Ssd1608 | Meadow.Foundation API website

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SSD1608 Meadow Pin
BUSY D15
RST D14
DC D13
ECS D12
SCK SCK
MISO MOSI
GND GND
VIN 3V3 
    public class MeadowApp : App<F7FeatherV1>
    {
        private MicroGraphics graphics;

        public override Task Initialize()
        {
            Resolver.Log.Info("Initialize...");

            var display = new Ssd1608(spiBus: Device.CreateSpiBus(),
                chipSelectPin: Device.Pins.D12,
                dcPin: Device.Pins.D13,
                resetPin: Device.Pins.D14,
                busyPin: Device.Pins.D15,
                width: 250,
                height: 122);

            graphics = new MicroGraphics(display);

            return Task.CompletedTask;
        }

        public override Task Run()
        {
            try
            {
                graphics.DrawRectangle(10, 10, 20, 20, Meadow.Foundation.Color.Black);

                graphics.Show();
            }
            catch (System.Exception)
            {
                throw;
            }

            return Task.CompletedTask;
        }
    }

in the debug, it gets stuck on graphics.Show() line, and nothing happens on the screen.

and then how do I further investigate what is wrong?

2

Hi @tridy,

Sorry for the late response. I took a look at this sample, and I found a wiring mistake: you want to connect the 3v3 pin on the e-paper with the 3v3 source on the Meadow. I did that small change and I saw my screen updating.

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Try that and let me know if it works,
Jorge

3

Thanks! Well, at this point, there is something wrong with my F7, I am not able to do anything with it.

If I manage to revive it, I will give it a try with 3v3 to 3v3.