The E-Ink Gizmo adds an e-ink display to you Circuit Playground, but it also adds some other extras. Let's take a look!

Power Pins

  • VOUT - power input, connect to 3-5VDC.
  • GND - power and signal ground. Connect to your power supply and microcontroller ground.
  • 3.3V is the output from the onboard 3.3V regulator. If you have a need for a clean 3.3V output, you can use this! It can provide at least 100mA output.

SPI Display Pins

  • The display used on the E-Ink Gizmo is a 1.54" tri-color e-Ink display.

    • SCK - this is the SPI clock pin, its an input to the chip. This is connected to A4 or SCL.
    • MOSI - this is the Microcontroller Out Serial In pin, for data sent from your processor to the e-ink display. This is connected to A5 or SDA.
    • CS - this is the chip select pin, drop it low to start an SPI transaction. Its an input to the chip. This is connected to A6 or RX.
    • DC - this is the e-ink SPI data or command selector pin. This is connected to A7 or TX.
    • RST - this is the E-Ink ReSeT pin. It is connected to A3.

E-Ink Display

  • Front and center is a 1.54" 152x152 tri-color e-ink display, with black and red ink pixels and a white-ish background.
  • The display cable goes through to the back and connects to the display connector towards the top in the middle of the back.

Speaker Connector

  • On the bottom of the back, there is a Molex Picoblade speaker connector and a class D amplifier connected to pin A0.
  • The location is labeled on the front as A0 with a speaker symbol.

STEMMA Connectors

  • On the sides of the back are two 3-pin STEMMA connectors for hooking up NeoPixels or servos connected to pins A1 and A2.
  • The locations are labeled on the front as A1 and A2.
This guide was first published on Dec 03, 2019. It was last updated on Dec 03, 2019.
This page (Pinouts) was last updated on Oct 15, 2020.