Blueprint

Clém

Clém

Joined November 28, 2025

Clém's Journal Activity

October 1, 2025 - March 31, 2026

Clém's Projects

LEDino & AngstromIO

Two small devboards: A small, cost effective, USB C devboard based on the CH32v003 (QFN) with a small 5x4 charlieplexed LED matrix, and AngstromIO, an itty bitty 8.9mm by 9mm devboard, barely bigger than a USB C connector, with two adressable LEDs, based on the Attiny1616.

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Pocket Dice - A tiny electronic LED dice

It's a dice, barely bigger than a coin cell (CR2016), based upon the ATtiny1616, with 7 orange 0603 LEDs . With the press duration being recorded, it should display a truly random generated number, unlike pseudo random number generator algorithms.

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Tactile Remote Control Panel

This is a tactile Control Panel, that can communicate over I²C with a microControllers or other device. It comes with a bunch of capacitive touch keys, and an addressable LED bar on the side to get a visual feedback, along with a small vibration motor that gives haptic feedback. Being a simple electronic module, it doesn't comes with a microcontroller, but instead with an FPC connector that gives access to all the GPIOs (I²C lines (MPR121), PWR, data LED pin, PWM pin for the vibration motor)

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Custom 7 segment Display - 3 digits and custom indicators

This PCB is a 7 segment display LED array, made of 32 0603 LEDs, on which you can mount a 3d printed diffuser that shapes the LED segments. The idea is that from one PCB with 32 LEDS, some of which are arranged in 3 digits 7 segment displays, you can design your own custom diffuser, to build custom 7 segment displays, with custom LED indicators. The display is driven by 2 AW9523 ICs which are extremely cheap (30 cents each) and easy to control via I²C.

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RGB Connect : A simple ESP32 powered RGB + 2 White strip LED driver

This RGB LED driver built around an ESP32 supermini devboard comes with 5 P channel Mosfets and a 5V LDO voltage regulator. With this simple module, I'll be able to command RGB strips and White LED Strips with a Blynk IoT app on my phone. With it's 5 Mosfets, this module can control everything that needs switching 5 high sink loads (up to 5 Amps), even though this board has been specifically designed for the 3 R, G and B channels, with the 2 other channels remaining for white LED Strips.

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IOX-77 - An ESP32 based SuperBoard (75+ GPIOs)

The IOX-77 is a powerful ESP32-C3 based devboard. It comes with 75 GPIOs, which is even more than the Arduino Mega while being smaller and embedding WiFi and Bluetooth capabilities. It's like a 6 core configuration with 5 cheap CH32v003 MCUs communicating with the main core, the ESP32. With this devboard, I'll never run out of IOs for all my future projects, even those requiring dozens of IOs. This board is an upgraded ESP 32 devboard, gathering the computational power of the ESP32 and the many GPIOs offered by all the CH32. I hope you'll enjoy ! 😉

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