Hey everyone! I'm just getting started with electronics and I'm working on a project to build a transit departure board using segment displays. I've got a package of two common anode 8-segment displays (FJ5261BB), and I'm trying to figure out how to connect three of them to a Raspberry Pi Pico. Any advice on how to do this?
2 Answers
Just a heads up, though! While the MAX7219 is a great chip, it's actually driven through SPI rather than I2C. It’s straightforward to control from a microcontroller, so you should have no trouble. I worked on a similar project with 64 LEDs and it turned out great. You can use different types of LED displays with it!
You might want to check out dedicated driver chips for this! The MAX7219 is a popular choice for controlling 7-segment displays and can easily interface with the Raspberry Pi Pico. The great thing is that you can connect multiple MAX7219 chips on the same bus, which makes it super handy for your setup!