openheart

custom electronics experiment collection

with an interest of making functional, interactive gadgets, I created the brand openheart to label my ideas as I develop them.

project 1: NOMI

starting as a fun idea for a dedicated Enter key, NOMI became a four-button macro-pad in the form of a desktop companion.

components: OLED module, Raspberry Pi Pico, keyboard switches

vibecoded in C with Gemini

feature breakdown

startup

custom boot animation "wakes" nomi up

pressing keys

nomi reacts to key presses. default controls are

CTRL, SHIFT, COPY, and PASTE

nomi reacts to key presses. default controls are

CTRL, SHIFT, COPY, and PASTE

function mode

keys change to auxiliary function keys to configured by the user as kotkeys

project 2: TEMI

temi is a portable timer friend with the main purpose of promoting the Pomodoro task method.

coming across a mass-produced OLED module, I was inspired to use it in a way it is not typically used, mounting it vertically to create the face of temi. It also uses a recycled used battery from a vape, something that typically ends up in landfills.

temi is a portable timer friend with the main purpose of promoting the Pomodoro task method.

components: OLED and rotary encoder module, Raspberry Pi Pico, vibration module, piezo buzzer, battery charging module, keyboard switch, recycled vape lipo battery

code: python vibecoded with Gemini