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...
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Mail Notifier - WiFi Edition RouterPi - A Compute Module 4 Router IoT and a Door Entry System Raspberry Pi 4 PCI-Express Bridge “Chip” Smart Power Bank Keep-Alive Remote Mail Notifier (and GPS Tracker) Laptop Bench Power Supply A Tiny Electronic Dice Car Rev Alarm and Gear Indicator N|Watch – DIY Wristwatch Kit DIY Digital Wristwatch USB Power Switch and Filter Bluetooth Net Monitor AVR USB RGB LED Controller CPU Usage LEDs AVR microcontroller based PWM fan controllersPROJECTS
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Si4463 Radio Library for AVR and Arduino nRF905 Radio Library for AVR and Arduino MCP2221 HID Library Millisecond tracking library for AVRLIBRARIES
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Raspberry Pi – Compiling a Module for the 64-bit Kernel A Lithium Battery Charger with Load Sharing Modifying RAM SPD Data Getting Bluetooth modules talking to each otherHOW-TO
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Repairing a Samsung HT-C460 Home Cinema System IC samples LCD Image Viewer First time with Arduino and AVR microcontrollers IR jammer LEDs looking pretty PWM Fan controllers using the 555 timer IC Joule Thief FM Radio TransmitterMORE STUFF
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 b...
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...
Si4463 Radio Library for AVR and Arduino
This is a library for use with the Si4463 radio IC from Silicon Labs, used (or will soon be) in some of my projects. The Si4463 is configurable in a ton of different ways with options for modulatio...
Modifying RAM SPD Data
Recently I brought some low-power Mini-ITX motherboards; a Gigabyte GA-N3050N-D3H and a Biostar N3050NH. These boards take SO-DIMM DDR3 RAM, the sort found in laptops. The boards are both pretty m...
MCP2221 HID Library
This is a library for interfacing with the HID features of the MCP2221 USB to UART and I2C/SMBus serial converter from Microchip and the newer MCP2221A. The converter includes 4 GPIO pins, 3x 10-bi...
N|Watch – DIY Wristwatch Kit
Orders now closed! See [this] for more info about the watch. There probably won’t be a batch #3, but if I do decide to do another batch then subscribe here to be notified about it. Batch #2 pro...
DIY Digital Wristwatch
Introduction The main incentive behind this project was to see how much I could cram, in terms of both hardware and software, into a wristwatch-like device that is no larger than the display its...
AVR USB RGB LED Controller
While working on an update for my CPU Usage LEDs project I thought why not just make it into a universal RGB LED controller? The CPU Usage LEDs controller took a value between 0 and 255, worked out...
Bluetooth Net Monitor v2
This post only goes over the new stuff in the network monitor, I’d recommend having a look at the original post first. New PCB design The new PCB is now an almost single board design, just a se...