Raspberry and chips

    Raspberry PI 4 project 74HC595 with 8 LEDS I have soldered the 74hc595 to a piece of vero board. I Also soldered the resistors and LEDs. I connect 3 signals to the raspberry pi GPIO signals, DATA (14), shift CLOCK (11) and the data latch (12). The outputs q0-q7 are wired to an LED via a 330𝛀 𝒓𝒆𝒔𝒊𝒔𝒕𝒐𝒓 python script # FXV300 This script reads GPU temp # and writes values to two TIL311 segment displays # PIN 2 LATCH DATA INPUT B 0010 # PIN 3 LATCH DATA INPUT A 0001 # PIN 5 LATCH STROBE INPUT _[ ]_ # PIN 12 LATCH DATA INPUT D 1000 # PIN 13 LATCH DATA INPUT C 0100 import RPi.GPIO as gpio import os import time import datetime # import binascii # this part sets up the GPIO pins as output # The first value is the GPIO pin label,and the comment is the physical pin value gpio.setwarnings(False) gpio.setmode(gpio.BCM) gpio.setup(11, gpio.OUT) # Pin 23 - Serial Data 74HC595 Pin 14 gpio.setup(12, gpio.OUT) # Pin 32 - Data Clock 74HC595 Pin 11 SHCP shift register clock input gp...

Controlling 4N35 optocoupler using a GPIO signal from PI 4 or Arduino Controlling 4N35 optocoupler using a GPIO signal from Raspberry PI 4 or Arduino or any similar device which has General Purpose Input Output facilities (GPIO). Simple python script can be adjust for timing.

If you want to set a static TCP/IP IP Address for a Raspberry PI 4 you can do this fairly easily. You either set it up manually using Linux commands via terminal or use the GUI provided by Raspberry Pi OS

Controlling 4N35 optocoupler using a GPIO signal from PI 4 or Arduino.  These mini projects will get you creating circuits and understanding how they work. 

 Visit FXV300  for some of my PI 4 projects and their documentation. PI 4 to Breadboard project to read temperature and display on Segment display using python to write script Powering the Raspberry PI 4 and the breadboard using an old power supply from a DVD player. Temperature output project using a python script which outputs the temperature to two til311 segment displays. The segment displays are located on a breadboard and the data is transferred via a shift register, the 74HC595 Raspberry PI 4 project 74HC595 with 8 LEDS  4N35 Optocoupler Circuit. Controlling 4N35 optocoupler using a GPIO signal

 In August 2020 I purchased my first ever Raspberry PI 4 . This device is very versatile and can be used with a variety of operating Systems. The OS lives in an SD memory card and can be swapped out whenever you fancy a change.  Since then I have done several projects using the Raspberry PI 4