This 4-digit seven segment LED display is based on MAX7219 and supports SPI interface. It requires only three I/O pins of Arduino or any other microcontroller, and gives you full control of all 4 digits and decimal points.
First Class USPS International Package is the standard shipping service that we use for both domestic and international orders, because it is the cheapest shipping option available in the United States. Tracking is not available once the package leaves the USA.
The PIC12F683 example code is written in C and it can be easily implemented to any other microcontroller family.
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I live in the United States and I build DIY electronics project kits/boards for hobbyists and engineers. You can reach me at admin [at] embedded-lab.com for any questions regarding my products.