USB 10-digit Seven Segment Display Module
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USB 10-digit Seven Segment Display Module

by Dilshan R Jayakody:   This project is about an open-source, USB based, 10 digit seven segment display unit. This unit is specifically designed to work with POS systems and banking applications. Initially, this system is developed to work with PC based POS systems, and later it...

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LED Lighting Effects Generator using PIC16F886
LedMcu

LED Lighting Effects Generator using PIC16F886

This project generates 8 different LED-lighting patterns (Visual Effects) and is based on PIC16F886. The project demonstrates different chasing effects being generated using 20 SMD LEDs and  speed of LED-lighting moving is adjustable with the help of the on board trimmer potentiometer....

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3 cent PMS150C MCU drive 300 WS2812B LED’s
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3 cent PMS150C MCU drive 300 WS2812B LED’s

Driving 300 WS2812B RGB LED’s with “the 3 cent microcontroller” – the Padauk PMS150C. The 3 cent Padauk PMS150C is.. Interesting to say the least. First of all there’s a lot this little MCU doesn’t do. It doesn’t have a lot of code space (1K Word), it doesn’t have a lot...

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Nichia launches a 280 nm Deep UV LED
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Nichia launches a 280 nm Deep UV LED

Nichia Corporation is proud to introduce a new Deep UV LED, Part Number NCSU334A. Nichia has had significant success over the years with UVA LEDs, specifically in convention resin curing applications. Nichia’s new 280 nm UVC NCSU334A will be able to address mass market goals for...

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HP 5082-74xx 7-segment display revived
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HP 5082-74xx 7-segment display revived

A small interface board for the legendary HP 5082-7415 and 7405 DIP bubble display. by Yannick (Gigawipf): This project describes a breadboard friendly breakout board with 2 shift registers and resistors for these modules with dip socket to be gentle on these rare displays from the...

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1.5V battery powers white-LED driver
Led

1.5V battery powers white-LED driver

Although white LEDs are common in a variety of lighting applications, their 3 to 4 V forward-voltage drop makes low-voltage applications challenging. Charge pumps and other ICs are available for driving white LEDs, but they generally don't work with the low supply voltage of 1.5 V in...

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Homebrew DMX-controlled RGB LED light
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Homebrew DMX-controlled RGB LED light

Glen has written an article detailing his homebrew DMX-controlled RGB LED light: This project is a small DMX-512 controlled, color-changing RGB LED light. The light can be controlled via the DMX512 protocol or it can run a number of built-in programs depending on how the software is...

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1326
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USB Stack Light Controller based on PIC16F1459
Led

USB Stack Light Controller based on PIC16F1459

Glen Akins build a USB Stack Light Controller based on PIC16F1459 and documents the process on this personal blog. He writes: After using the PIC16F1459 to build numerous USB HID input devices including a giant keyboard, a tiny keyboard, and a big red button, it was time to see if the...

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