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sjm4306

Electrical Engineer specializing in embedded programming, analog/digital circuit design, and power converter systems.

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35 Projects
830 Likes
sjm4306
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This user joined on 07/07/2017.

2.7k
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I've seen several tiny led matrices based around the diminutive sk6805-ec15 so I thought I'd throw my hat in the ring
Project Owner Contributor

Tileable Tiny 8x8 SK6805 RGB Matrix

sjm4306sjm4306

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A digital VU meter that looks and moves like an analog needle with mass and spring oscillations
Project Owner Contributor

Digital VU Meter with Analog Physics

sjm4306sjm4306

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Pretty much exactly what the title describes, can play 4 channels of polyphonic squarewaves at once triggered by 13 capacitive touch keys
Project Owner Contributor

Polyphonic Touch PCB Piano

sjm4306sjm4306

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I'm lazy and dont like to convert values in my head while programming or use windows calculator so I made a standalone widget!
Project Owner Contributor

Programmer's HBD Converter (Hex, Binary, Decimal)

sjm4306sjm4306

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I've been in a clock making sort of mood recently and I've seen tons of word clocks so I thought it was time to give it a try
Project Owner Contributor

Small Word Clock

sjm4306sjm4306

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You can never have too many clocks based on obsolete display technologies ...
Project Owner Contributor

Tiny IV-21 VFD Clock

sjm4306sjm4306

View all 35 projects

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or "flip dotters" if you want. Let's just talk about flip-dot/flip-disc displays and projects using them :-)
Project Owner Contributor

Dot flippers

Yann Guidon / YGDESYann Guidon / YGDES

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The filaments used in "vintage" Edison type light bulbs are readily available and can be used to make 7 segment displays.
Project Owner Contributor

Using LED filaments to make a digital clock

Jay HamlinJay Hamlin

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Not yet another esp32 watch :)
Project Owner Contributor

TshWatch, watch based on esp32

IvanIvan

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Radiation measurement device (using two different tube-models)
Project Owner Contributor

Geiger counter w/ Raspberry Pi Pico

Florian Wilhelm DirnbergerFlorian Wilhelm Dirnberger

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Episode: "The Long Patrol", CORA keeps Starbuck company during a long duration flight and also uses her flying skills to elude the Cylons!
Project Owner Contributor

C.O.R.A. from Battlestar Galactica

Luke J. BarkerLuke J. Barker

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An Attiny 402 based console, powered by an LIC 40F. Work in progress!
Project Owner Contributor

Game&Light a keychain size game console with a led

grossofabiangrossofabian

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Yet another "Slow Movie Player" implementation with 7-color E-Paper module and ESP32.
Project Owner Contributor

Slow Movie Player 7C

likeabloblikeablob

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The OpenFlap project aims to create a open source, affordable split-flap display for the makers and tinkerers of the world.
Project Owner Contributor

OpenFlap

Toon Van EyckToon Van Eyck

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How to make a VU meter with 38 bars per channel on a 20x2 VFD display.
Project Owner Contributor

DIY Arduino VFD display 20x2 VU (VolumeUnit) Meter

mircemkmircemk

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It is like a mini atom bomb, In a piece of single code you will get a lot of features and I fully respect the effort of the owner.
Project Owner Contributor

Arduino based Dual channel Oscilloscope

halfstudents.inhalfstudents.in

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Adventure of pushing the limits and getting multi-level grayscale on 1-bit BW LCDs!
Project Owner Contributor

Grayscale on 1-bit LCDs

Wenting ZhangWenting Zhang

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ANSI-compatible serial terminal built with Raspberry Pi Pico and EL640.480-AM/AG screen
Project Owner Contributor

ELterm

Wenting ZhangWenting Zhang

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ArduinoGotchi is a real Tamagotchi P1 emulator running in Arduino UNO hardware
Project Owner Contributor

ArduinoGotchi

Gary KwokGary Kwok

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mechanical 7-segment actuator application created using the actuator of Clock Movement
Project Owner Contributor

Mechanical 7-Segment Display

Open Source ActuatorOpen Source Actuator

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Rotary Actuator is an open source rotary actuator built using the Clock Actuator included in Clock Movement
Project Owner Contributor

Rotary Actuator

Open Source ActuatorOpen Source Actuator

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Simple USB-C Power Delivery Tester based on ATtiny25/45/85 and INA219.
Project Owner Contributor

ATtiny85-based-USB-C-Tester

MrinnovativeMrinnovative

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A simple and cheap yet versatile single-button MIDI controller
Project Owner Contributor

MidiFoot

Bill PetersonBill Peterson

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This project is very help to measure the voltage ratings of a zener diode, Get PCB Gerber and circuit schematics from here.
Project Owner Contributor

Zener Diode Tester Simple circuit

ElectroBoyElectroBoy

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Stand-alone High-Voltage Serial Programmer and Fuse Resetter for 8-Pin ATtinys
Project Owner Contributor

ATtiny84-TinyHVSP-SMD

MrinnovativeMrinnovative

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Bits

Michael Gardi wrote 06/03/2021 at 18:36 • point

Thank you for your interest in my Exploring Flip Dots project. 

  Are you sure? yes | no

Ar wrote 05/19/2021 at 19:56 • point

Hi, and thank you for the follow! Had to recreate the project page for my laptop LCD, sadly - follow it here: https://hackaday.io/project/179868-all-about-laptop-display-reuse

  Are you sure? yes | no

Michail Wilson wrote 02/03/2020 at 19:23 • point

Hello,

First, thanks for responding.

I am interested specifically the "Wifi Flip Clock/Youtube Counter"

  Are you sure? yes | no

Michail Wilson wrote 01/31/2020 at 22:25 • point

have you posted the files (gerbers, source, or anything).   I can't find them in any of your projects.  

  Are you sure? yes | no

sjm4306 wrote 02/03/2020 at 15:43 • point

What projects did you specifically check? For some of my projects they are under the Files section, but I'm still updating the rest of them.

  Are you sure? yes | no

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