Nanode (5)
RC2014 Bootloader for SD Cards
So, the RC2014 is great. I can run Microsoft BASIC and program it from there, and as long as I am using a terminal emulator, I can copy & paste to save and load programs. Alternatively, I can write Z80 code using an online compiler then download it, copy it to USB stick, move it to my old Windows 2000 laptop (which has a parallel port) so I can burn it on to EPROM to see if it works, make adjustments and repeat with another EPROM. I will be the first to admit, however, that this is probably not the most efficient workflow. Not to mention the time and effort involved in wiping the limited stock of aged EPROMS. So, I am in the process of designing an SD Card based bootloader.
Tweeting Front Door
First of all, allow me to apologize. I set up my Tweeting front door at the end of 2011. Its only about 6 weeks away from…
3 Stage ATtiny85 Watchdog Timer
A while ago I started logging temperatures to Pachube via a Nanode. For the most part this works fine, but sometimes something breaks and I might lose a few hours or days worth of data. It might be the Nanode that's gone down, or Pachube, or (most likely) my Internet connection. So I decided to build a simple 3 stage external Watchdog Timer that would monitor the status of the feed and start taking steps to rectify it.
Arduino Control Room
I've been working on a few Arduino projects recently that will hopefully result in varying levels of home automation. The effect so far has been to stick a box here, plug this in there, and dangle a wire from over there, with a general haphazard (with emphasis on the 'hazard' bit in some places!) outcome. If this is to work with any degree of success, it needs some more permanent infrastructure. It needs power. It needs internet connectivity. It needs to be centralised. It needs easy access to things I want to monitor and/or control. It needs to be tidy and out of the way, but easily accessible. There's a shelf in my cloak room that meets most of those criteria, so this weekend I started getting it prepared;
30 Second Nanode Build
A couple of months ago I bought a Nanode, which required self assembly. Whilst I was building it, I thought it would have been nice…
