Raspberry Pi – Compiling a Module for the 64-bit Kernel

Recently I’ve been working on a network router using the Compute Module 4 and a custom base board with a Realtek RTL8111H PCIe Ethernet controller. Raspberry Pi OS doesn’t come pre-installed with the r8168 or r8169 driver needed for the RTL8111, but getting it compiled and installed is pretty easy. Or at least until I …

Continue reading

Repairing a Samsung HT-C460 Home Cinema System

My Samsung HT-C460 home cinema had started going into protection mode – it would display “PROT” on its screen and turn off after a few seconds. It’s an old cinema system with a DVD player that hasn’t been used in years (I only use it to feed the TV audio through), but I thought I’d …

Continue reading

AVR-GCC 11.1.0 for Windows 32 and 64 bit

This is where I’ll be uploading builds of AVR-GCC for Windows 32 and 64 bit, which will also include Binutils, AVR-LibC, AVRDUDE, Make and GDB. I’ll be trying to keep the builds up to date with the latest tool releases when I can.

Continue reading

Raspberry Pi 4 PCI-Express Bridge “Chip”

After seeing the work done by Thomasz Mloduchowski and Colin Riley with managing to bridge the Raspberry Pi 4’s PCI-Express bus to a USB 3.0 port, and then seeing these comments on hack-a-day, I thought I would give it a go too! So, here’s a PCIe bridge “chip” that simply replaces the VL805 USB 3.0 …

Continue reading

Smart Power Bank Keep-Alive

Ever wanted to power a project from a USB power bank, only to have it keep shutting itself off because the current draw was too low? This project aims to fix that with these handy and slightly over-engineered USB modules containing a microcontroller, op-amp, MOSFET and a few other bits to create a pulsed adjustable …

Continue reading

Remote Mail Notifier (and GPS Tracker)

At the moment I’m living in a block of flats and my mailbox is in a central lobby area. I’m often receiving small surprise packets from China and never know when the postman has been, usually between 8 and 12, sometimes even twice a day! I also don’t have any road facing windows that I …

Continue reading

Laptop Bench Power Supply

Many years ago (September 2009) I made a simple bench power supply using an LT1083 7.5A linear regulator with adjustable output voltage designed to be used with a 19.5V 3.42A laptop power supply. It still works fine after years of abuse, but my choice of output power connectors was poor (3 pin headers, the sort …

Continue reading

A Tiny Electronic Dice

Here’s a simple, tiny electronic dice project using 7 LEDs, an ATtiny25V, a CR1616 coin cell and a few passives. Measuring just 18mm x 18mm and 4.9mm thick while weighing 2.1g. Rolling The Dice There’s only one button, the roll button, which when held down will cause the dice to roll through numbers 1 to …

Continue reading

USB Power Switch and Filter

What’s more annoying than having to pull the USB cable every 5 seconds to power cycle the project you’re working on? Especially when you’ve ran out of front USB ports and have to reach around the back of your PC. This project aims to make things a little bit easier by using a small push …

Continue reading

Car Rev Alarm and Gear Indicator

Having had a Toyota GT86 for a while I quite enjoyed the built-in rev alarm and winding the engine all the way round, until an old lady made it an insurance write off. Though, I did have the luxury of driving a BMW 430d M Sport hire car from my insurance for a few months. …

Continue reading

Load more