A video of the program printing pi. Please go to my instructables…
This project aims first to teach you how to calculate π to great precision in a short amount of time using various algorithms. And then using Python, a Raspberry Pi and a a thermal printer I will explain how to create a project that continuously prints pi to a selected number of decimal places. The final project uses a number pad to take input and can run without a screen.
Featured Adafruit Product!
Mini Thermal Receipt Printer: Add a mini printer to any microcontroller project with this very cute thermal printer. Thermal printers are also known as receipt printers, they’re what you get when you go to the ATM or grocery store. Now you can embed a little printer of your own into an enclosure. This printer is ideal for interfacing with a microcontroller, you simply need a 3.3V-5V TTL serial output from your microcontroller to print text, barcodes, bitmap graphics, even a QR code! (read more)
Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!