8 digit 7 segment display with SPI interface
Raj designed this 8 digit 7 segment display with an SPI interface using a MAX7219 display driver:
This entry was posted in Arduino, LEDs and tagged 7-segment, MAX7219.The SPI7SEGDISP8.56 module can be interfaced with any microcontroller that has 3 I/O pins available. If the microcontroller features a built-in hardware SPI, then the display module can be interfaced as a SPI slave device. In that case the SPI signal lines SDO (serial data out), SCLK (serial clock), and SS (slave select) from the microcontroller can be directly connected to the DIN, CLK, and LOAD pins of MAX7219. The LOAD signal is active low.
Comments
OK, not knocking what he did here. It’s cool. But why not just buy something that’s already put together that uses the same driver and costs much less? http://dx.com/p/8-segment-led-display-board-module-for-arduino-147814
Maybe like me – He had no idea! Lol.
I had no idea Dx sold that sort of thing, so there you go. Thanks for that Anon. I was hoping Sparkfun would bring out a serial version of their ‘Tall’ 7 seg,
https://www.sparkfun.com/products/11405 as I need one and was thinking of getting the normal SF serial https://www.sparkfun.com/products/11441? and modifying it for the Tall display, but now I might get one of these and mod – Unless of course you know something matching the above?
Thanks :)