Electronics
RISC-V Boards
Board SOC Model Cores ISA OS Available Price HiFive1 FE310-G000 E31 RV32-IMAC RTOS 2016 Q4 / HiFive Unleashed Freedom U540 4x U541x E51 RV64-GC Linux 2018 Q1 / HiFive1 Rev B FE310-G002 E31 RV32-IMAC RTOS 2019 Q1 59$ LoFive board FE310-G002 E31 RV32-IMAC RTOS / 29,99$ Board SOC Cores ISA Read more…
Electronics
LED Blinking HELMET
Hardware WS2812B RGB 5v individually addressable LED Strip (144 pixels / m. enclosed into a silicone waterproof case IP67) Control board : Raspberry Pi Zero 1.3 Battery : Turnigy Li-Po, 2200 mAh, 3S, 11.1 V, discharge rate = 25 C (theoretical maximum current = 55 Amps / 2,4 min) Voltage Read more…
Electronics
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 these peripherals are routed from Read more…
Electronics
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 loop. To do this, I Read more…
Electronics
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 ? A logical counter able to increment a Read more…