Content for MCP73831

Neon Lamp Tea Light

“Neon lamps, also known as neon glow lamps, are wonderful little bulbs that glow orange when you give them high voltage and low current. Neon lamps are mostly obsolete now; they belong to an era when many electronic devices were …

Binary Calculator

“A binary calculator and binary clock in a handheld format using circuit sculpture building techniques. 328p, MCP7940 RTC, TLC5928 LED driver Technical Details: Atmega 328p processor TLC5928 Constant Current LED Driver MCP7940 RTC MCP73831T Li-Ion Charge Controller 5mm red LEDS …

FLEXBALL - a Hundred Pixel Flexible PCB Ball With WiFi

“Hello makers, it’s maker moekoe! Flexball is based on a flexible PCB which is equipped with 100 WS2812 2020 addressable LEDs. It is controlled by an ESP8285-01f - the smallest ESP based module by Espressif. Additionally it has an …

Moon Phase Display

“A battery powered e-ink display showing the current phase of the moon. I’ve used this project as a way to learn. It includes my first custom PCB, one of my first 3D prints, my first encounter with open source …

Project  LED candles

LED candles

“These candles flicker like a real candles and can be activated with real flame Flame (or heat) detection is based on temperature dependence of the LED’s forward voltage. This voltage is measured (at very low LED current) by internal …

The Ultimate Binary Watch

“I recently got introduced to the concept of binary watches and started doing some research to see if I could build one for myself. However, I was unable to find an existing design that was both functional and stylish at …

Project  Xling

Xling

“A tamagotchi-like toy with an OLED display and Li-Po battery. This is a little tamagotchi-like toy I’ve created for my wife. I used to think that this is how a modern Tamagotchi could look like initially. However, it can …

Six Sided PCB LED Dice With WIFI & Gyroscope - PIKOCUBE

“Hello makers, it’s maker moekoe! Today I wanna show you how to build a real LED dice based on six PCBs and 54 LEDs in total. Next to its inner gyroscopic sensor which can detect movement and dice position …

Prototyping of an MCP73831 based battery charger

“One of my ongoing projects is a very low-power electronics device that supposedly runs on a single-cell Li-Ion or Li-Polymer battery for a very long time, hopefully many-many months. In my idea, the battery actually could be a rechargeable one …

4-Legged Walking Robot

“Arduino Nano or Obniz controlled robot design information. A robot control board with four servo-controlled feet and a face with a distance sensor. The control board can use Arduino nano or Obniz. The example above uses Arduino Nano 33 IoT …