If I want to read a (bunch of) 74HC165 chip(s) over an SPI port on a microcontroller, this is simple enough. Connect them through Q7 to DS on each, apply the final Q7 to MISO, notCE to SS and CP to SCK.

2016年6月28日 · I want to read 74HC165 shift registers via SPI. Is Arduino's SPI.beginTransaction(SPISettings()) useful for reading 74HC165 shift registers? Arduino's SPI library says: This library allows you to communicate …

2023年3月22日 · I have a cascade of 9 PISO (74HC165) shift registers connected to an Arduino Micro. I would like to read 9 bytes of inputs. Using the shiftIn() function, I was only able to read the data of the first 4. Using SPI, I can reliably read the first 8.

2012年7月15日 · /* This sketch demonstrates polling the inputs of a 74HC165 8-Bit Parallel-Load Shift Register using the Arduino SPI interface. You should connect pushbuttons or switches to the inputs of the 74HC165.

2024年6月29日 · I have succeed in using SPI to output numbers on LEDs via 74HC594 so I known that the SPI was up and running correctly. Now with the 74HC165, the basic idea is similar to the 594, start the SPI, wait for it to complete, than get the data. Heres my code:

2020年3月7日 · 74HC575 & 74HC165 Shift Registers. We will be using two very common and easily obtained shift registers today, the 74HC595 SIPO and 74HC165 PISO. Let’s take a closer look at these chips. 74HC595 – 8-bit Serial In – Parallel Out. The 74HC575 is an 8-stage serial shift register that also has an internal storage register. The storage ...

2022年11月18日 · Arduino library for (AVR) optimized shiftIn - e.g. for 74HC165. Unfortunately it has not been optimised for ESP32. Tom..... i'm trying to daisychain 40 shift registers but i'm working with only one now to figure out what's the problem. i wired Lach pin on ss , miso on serial out and SClK on CLK.