Where have I been!?
I've started working on all sorts of projects lately. Largely due to the long lead times on low priority shipping from Taiwan. I've ordered a new LCD - this one is a graphics LCD! - and some switching regulators - to power these devices from 2 AA batteries.
I need to get my entire sensor net up and running. I'm considering building a USB powered device. It's easy, and has no major power design issues - unlike the solar powered version I haven't managed to get working! I'm ordering two switching regulator sets, so when those arrive I should be sorted. One is going in the garage with a 3v battery pack, and one is going to be wired to the solar garden light. This one will be fed on a 1.2v NiMh AAA battery charged by the solar panel.
On the software side. I have a fully functional, but not yet fully featured python script that runs on boot. The trick was to put the start-up scripts in the original root, not the pivot root! A hurdle I am currently experiencing is time. I need to synchronise the router with a NTP server - a server designed to update system clocks. This will give my router the correct time as it has no backup battery / capacitor. That is the easy part... That hard part is making the router use the correct timezone. I could call it a feature that it uses UTC (Universal Coordinated Time - not an acronym mistake!), but I would really prefer it used the local time. Hopefully I can change this in the python program rather than the router itself...
I have successfully made an LED that will turn on and off via an SMS sent to twitter. The direct message is read by the router, and this triggers the LED. I plan to use this for a fan I have - the type used in summer for keeping cool!
No photos as of yet. The whole device is still in the early days.
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