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Re: 1x 74HC595/TPIC6B595 via SPI interface, driving multiplexed 4x 7-segment display
Posted: Wed Feb 25, 2026 7:22 pm
by mnfisher
Re: 1x 74HC595/TPIC6B595 via SPI interface, driving multiplexed 4x 7-segment display
Posted: Sun Mar 01, 2026 10:27 am
by andeug
Thank you for your support, Martin! I am experiencing some issues with the device's programming at the moment, using the ATMEL-ICE programmer, and I need to do further troubleshooting before working on the code. Also, note that I am using TPIC6B595 in my project, regarding which I commented in the link that you have posted above.
Re: 1x 74HC595/TPIC6B595 via SPI interface, driving multiplexed 4x 7-segment display
Posted: Tue Jul 07, 2026 7:05 pm
by andeug
Hi Martin,
You have helped me to solve my problem, thank you! I was able to build the proto board with the TPIC6B595 and the display I wanted, but my need is a bit different than only counting or displaying numbers.

- IMG_0687.jpeg (145.99 KiB) Viewed 195 times

- IMG_0686.jpeg (124.13 KiB) Viewed 195 times
I also want to display custom characters and the alphabet's letters in 7 segments, so I will need a flow code similar to the 7Segment (74HC595) component, which has:
ShowDigit -
ShowDigits -
ShowSegments -
The most wanted feature is ShowDigit, as I will use it as a reference to create a lookup table for characters and letters, since I currently have only one for numbers from 0 to 9.
Would it be possible to customize the enclosed example to work with what I need? (I do not know how to do it myself)
Andreas
Re: 1x 74HC595/TPIC6B595 via SPI interface, driving multiplexed 4x 7-segment display
Posted: Tue Jul 14, 2026 8:28 pm
by andeug
Hi Martin,
I figured out how your component works, and I can confirm to the community that it's designed for the TPIC6B595.
Andreas