Shell for an IoT interactive "pet"

Tap on the head to press the button.

I used 8mm diameter silicon bumpers for the eyes - either attach them to a 128x64 OLED display for programmable eyes, or simply glue them in place to allow the light from the neopixels to shine through the eyes.

Designed to house a small micro-controller dev board like the AdaFruit Feather Huzzah ESP8266 in the base, with a pushbutton and 12 pixel Neopixel (WS2812B) ring above, and with space for additional sensors or piezo buzzer mounted on either the front or back.

Use 4 x 2.5mm screws to attach the base to the outer shell (optionally use small springs between the shell and base for better bounce back from button presses)

Version 1.1: Makes the space for the OLED screen slightly larger to make it easier to remove, better clearance for the screws, & moves the button topper into a separate part to make it easier to print and adjust position.