GPIO, I2C, SPI and Serial with Raspberry Pi 4

In this video I do some playing around with the GPIO pins on a pi4.

My github repo
https://github.com/thaaraak/gpio

BCM2835 Library and Book
https://www.airspayce.com/mikem/bcm2835/
https://www.amazon.com/gp/product/187...

WiringPi
https://github.com/WiringPi/WiringPi

BCM2711 Datasheet
https://datasheets.raspberrypi.org/bc...

Pi 4 GPIO Header layout
https://www.raspberrypi.org/documenta...

My earlier MAX7219 example with STM
   • GPS Clock - Part 2 LSE, MAX7219, Time...  

0:00 Intro
1:50 Pi hardware notes
2:20 GPIO Pins layout
6:02 Basic GPIO Access methods
9:46 The wiringPi and BCM2835 libraries
12:10 GPIO Output - Simple Blink Program
19:32 GPIO Input - Input processing
24:57 Raspberry Pi IoT book
25:31 I2C Example with ADS1115 ADC
35:00 SPI example with MAX7219 8 digit LED driver
41:22 Reading serial with a GPS receiver
43:13 Python serial example
44:28 C serial example with wiring Pi