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Electronics

LED Blinking HELMET

LED Blinking HELMET

Hardware list WS2812B RGB 5v LED Strip, 144 pixel/m (enclosed into a silicone waterproof case) Raspberry Pi Zero 1.3 Battery 2500 mAh Software environment Neopixel for Raspberry Pi, Github : https://github.com/jgarff/rpi_ws281x Python wrapper for Neopixel

Dark-side of the Raspberry Pi

Dark-side of the Raspberry Pi

BCM2835 Peripherals BCM2835 contains the following peripherals which may safely be accessed by the ARM: One part of theses peripherals are routed from the BCM2835 chip pads to the 2×20 GPIO header in order to be freely accessible (as shown above). One other part of […]

Hardware PWM with Raspberry Pi Zero

Hardware PWM with Raspberry Pi Zero

Purpose The main idea was to generate a configurable Pulse Width Modulated (PWM) signal out of a Raspberry PI Zero v1.3. The software solution The first solution was to handle a regular GPIO pin by software in order to alternate one and zeros via a […]

Synchronous decade counter

Synchronous decade counter

Purpose Experiment, have fun and learn. What better than counting without a counter ? In order to make a basic function (a decade counter) you need even more basic elements as : AND/OR Gates and J-K flip-flops.   Basics What is a synchronous decade counter […]