Jul 8, 2009 · How about something like this: byte read_8bit(void){ byte one_byte = 0; for (int i = 7; i >= 0; i--) { //read pin53-pin46 byte bit = digitalRead(46+i); one_byte |= (bit << i); } return one_byte; } does this work? is there a better/faster solution?

May 17, 2014 · Hello! I am trying to read the display data of an old drummachine. Data should clock in (with write_enable) twice as 2 * 8 bit and chip_select line low. (see attachments) Using chip_select_line to interrupt and enable …

Jun 26, 2012 · I've been trying to find a way to do fast 8 bit parallel I/O (bi-directional) on arduinos. All the hardware 8 bit ports seem to be compromised by having some pins devoted to other uses.

Jan 17, 2017 · I need to capture a single parallel 'snapshot' from a 10-bit shaft encoder. I understand that I can read individual bits and shift them into position, but any given input pin might change while reading the bits sequentially, which would give an bogus value.

Oct 13, 2022 · The 74HC165 is an 8-bit Parallel In Serial Out(PISO) shift register. You can use PISO to read the status of 8 pins using only three pins on the Arduino UNO. The shift register 74HC165 is used to increase the number of input pins for Arduino.

These displays use 8-bit parallel to communicate, 12 or 13 pins are required to interface (RST is optional). Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by purchasing products from Adafruit!

Sep 26, 2022 · The 8-bit parallel is definitely faster, but the bottom line is that this isn't bad if the 4 Wire SPI runs at 80 MHz. Hopefully, this helps your project.

The CD4014 is a CMOS IC that contains a shift register with eight bits. It has one serial input and eight parallel input pins to preload the register. You can use it as a parallel-to-serial converter, for example, to read the state of 8 buttons with only three Arduino pins.

Nov 29, 2020 · It is possible to read data from an 8-bit parallel bus NAND flash chip using the ATmega328p Arduino. Design of a SMD adapter and wiring. NAND Flash chips are widely used non-volatile memory devices.

8 bit parallel library for ILI9341 and STM32F1. If you want to change control pins, they can be modified in Adafruit_ILI9341_8bit_STM.h header file. You will also have to modify the setting of these pins as output in Adafruit_ILI9341_8bit_STM.cpp, lines 18-22.