Pebble Timeline node for Node-RED

The reason behind the last post was so that I could create a node for Node-RED to send pins to the Timeline on a Pebble smartwatch. To use this you obviously need a Pebble Time (or a classic Pebble once the Timeline update is available) but you will also need a Timeline user token which […]

Sending Pins to the Pebble Timeline

There are a number of different libraries available for sending pins to the Timeline on a Pebble watch, including those for Javascript, Node.js, Ruby, Python, PHP and C.  To use any of these you need a unique user token which is a UUID unique to both an app installed on the watch and the user, I […]

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 […]

Lenny, The bot that fools telesales callers

I mentioned in the last post that I send all but a select few callers on my landline straight to voicemail but that’s actually no longer true. Thanks to a casual comment by @ichilton on Twitter I’ve recently switched to diverting calls from unknown numbers to Lenny. Lenny who? Lenny is an Asterisk dial plan which together […]

Sending incoming call info to MQTT

I’ve used Asterisk at home since around 2004, originally using a clone of a Digium FXO card and later a Sipura SPA-3000 (later owned and branded by Linksys) to interface to my landline. When that server decommissioned itself (with a bang and bad smell) a year or so ago I switched over to the Asterisk based FreePBX on a […]

Switching Voice Notifications To Ivona

I had long used the unofficial Google speech API for voice notifications (TTS) as it has a very good, clear voice, much better than Festival which I had used previously. However late one night a couple of months ago this stopped working as Google started to redirect it to a captcha if you tried access it directly. […]

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 […]

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 […]