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Feature request. Multiple 74hc595 linked directly with raspberry pi

Open Gargo opened this issue 8 years ago • 1 comments

1)I mean raspberry pi has 8 pins. So at least you could allow to connect two 74hc595 directly to raspberry pi but your library has only 3 predefined numbers. Why? They will work faster.

2)I don't know if it is possible in general but... Let we have 74hc595 connected directly to raspberry pi. So we have 2 pins left + each 74hc595 may produce 8 pins: 2 + 8 * 2 = 18 pins. Could we force them to produce even more pins: 18 / 3 * 8 = 48 pins?

Gargo avatar Apr 01 '16 21:04 Gargo

  1. Thats the whole goal and precisely how a shift register, as 74hc595, works. Look it this way, you load the n-pins in series but when latched the values are transfered to the outputs in parallel. I managed so far to connect 4 registers in daisy chain.. looking forward for 8.

chapunazar avatar Aug 01 '16 13:08 chapunazar