Custom AMOLED Wearable Makes Great Icebreaker

Nifty little AMOLED screens are easy to get nowadays, and [Sophie D] demonstrates they are both thin and light enough to be worn with OpenChoker, a design for a choker …. Custom AMOLED Wearable Makes Great Icebreaker. The choker consists of an AMOLED touchscreen flanked by short RGB LED strips.

Behind the display is the PCB which contains an RP2350 and micro SD card slot for external storage, and at the rear of the choker is an 18650 cell to power it all. The display plays an eye-catching animation that gets generated on the fly while the LEDs sparkle away. [Sophie] shares several interesting takeaways from designing and building this device.

One is that the bulk of the PCB design work was interfacing to the display, since no existing footprint or reference design could be found. So if you find yourself with a Hello Lighting HL020E21-02 2.14″ touchscreen display you’re hankering to use in your own project, do yourself a favor and check out [Sophie]’s board design instead of starting from scratch. Battery life was more than enough for a device like this.