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 […]

Tiny328 – A mini wireless Arduino clone

So here is the reason for the last couple of blog posts. This is my first venture into designing an SMT board and apart from the practice run I did with some breakout boards it is the first time I’ve attempted to solder anything as small as a TQFP package or the tiny 0603 passives (1.6 […]

OSWIN Gateway with RFM12B, SRF and OOK Support

So after getting an SRF based TinyTX and an OOK based one running I thought I should update the gateway code for my OSWIN gateway to support both types of sensors as well as the RFM12B. To receive the SRF node I’m using a Ciseco XRF in the Xbee socket and the OOK receiver is plugged in […]

Using a cheap OOK radio with the TinyTX

Going the opposite way to the last post this is a version of the TinyTX wireless sensor node using a very cheap radio setup. I first experimented with this 433MHz OOK/ASK radio pair a few years ago with an ATmega328 and the VirtualWire library but I never did much with it beyond a simple demo and […]