Thank you so much you all - I knew there must be a better way!!
And yes multiplexing that’s the word thanks
I started looking at the different possible chips, and I found a couple of them, I was wondering - what is the difference between the TM1637, TM1638, TM1640 and TM1620?
I could only find the datasheets in Chinese apart for the TM1637 (which is clearly the most popular one).
But I would guess the only difference is the amount of “segments x bit” and the “keyboard scan” - could someone explain what this means? thank you!
Kinda guessing from the chinese datasheets:
- TM1637 is 8 segments x 6 bit and keyboard scan is 8x2bit
- TM1638 is 10 segments x 8 bit and keyboard scan is 8x3bit
- TM1640 is 8 segments x 16 bit and keyboard scan is ? (only DIN and CLK pins)
- TM1620 is 8 segments x 6 bit OR 10 segments x 4 bit and keyboard scan is ? (only DIN STB and CLK pins)
I have not read the full TM1637 datasheet yet - and yes that would probably help me understand what the segments*bit and keyboard scans are - I would still really appreciate a short explanation <3