3D Printed Cases For TinyTX and Tiny328

Another post I’ve been meaning to write for a long time. I finally got my Rigidbot 3D printer in August 2014 some 9 months later than the estimate but I was one of the lucky ones, many had to wait a lot longer and some have even had to pay extra for delivery, having already paid it once as the company […]

Letterbox Notifications

This was a quick project to add notifications for when I get real physical mail. This is something I’ve had on my mind since I made my first SMS doorbell notification system back in 2004 and I finally got around to it last month. First of all I picked up a cheap internal letterbox flap and fixed that […]

Wireless Sensor Battery Life 3+ Years On

I last blogged about this in December 2013 when the second version of my ATmega328 & DS18B20 based temperature sensor, installed on 29 December 2011, had just reached the 2 year mark on the original set of batteries. That’s pretty good going and I’d have been happy with that but how long would it last until those Energizer batteries […]

ESP8266 ESP-03 Dev Board

This is a small dev board I designed to make experimenting with and deploying the ESP8266 ESP-03 modules a bit easier. As well as breaking out all the pins to 2.54mm headers it has a position to fit either a DS18B20 temperature sensor or a DHT22 temperature/humidity sensor plus the required pull up resistor. It can […]

WiFi MQTT Display with the ESP8266

Like many people I have been playing with the Espressif ESP8266 WiFi modules over the last few months. I’ve had a couple of modules running for a while now, one connected to an Arduino pro mini clone with a 2×16 OLED display and one running directly on the ESP8266 using the NodeMcu Lua interpreter controlling a […]

Raspberry Pi Sinclair TV LCD Conversion

I got the idea for this after watching Dave’s teardown of the 1984 Sinclair flat screen pocket TV and thought it looked like a good candidate to make a cool retro style status display housing. So soon after watching Dave’s teardown I headed off to eBay and picked one up, this one was non-functional to begin with (dead CRT) so I […]

X10 and Home Easy with Node-RED

This is part of a series of posts I am doing describing some of the things I have been doing as part of the revamp of my home automation system. When I started on the home automation road in 2002 I began with a kit of 3 X10 modules and a CM12U PC interface which I […]

TinyTX & Tiny328 Sensors with Node-RED

Node-RED is currently taking the IoT world by storm, described as “A visual tool for wiring the Internet of Things” it is built on top of Node.js and is an open source project developed by IBM employees. It makes it easy to link various inputs and outputs adding simple or not so simple processing in […]

Wireless Sensor Battery Life 2 Years On

Back in November 2011 when I made my first ATmega328 based wireless temperature sensor node I did a rough calculation estimating that it would last 2 years or more on a couple of AA batteries. That first node was decommissioned after a few months but the second version, also based on an ATmega328 is still […]