Hi, I'm Bill. I'm a software developer with a passion for making and electronics. I do a lot of things and here is where I ...

Just about every “getting started with microcontrollers” kit, Arduino or otherwise, includes an ultrasonic distance sensor ...

A consumer scans an Alipay QR code to pay for the order at a self-service restaurant in Hangzhou, Zhejiang province. [Photo/Xinhua] The first China-led international standard for QR codes was ...

Abstract: Custom CMOS integrated circuits and commercial LEDs can be combined to build a compact system aimed at performing optical spectroscopy with reduced cost and low area consumption. This work ...

Pull requests help you collaborate on code with other people. As pull requests are created, they’ll appear here in a searchable and filterable list. To get started, you should create a pull request.

When you press the button, the LED matrix displays a dice roll animation and stops on a random number between 1 and 6. Built using SPI communication with the MAX7219 driver.