Below you can see the photo-transistor with an excessive blob of hot melt glue ...
How to calibrate the unit to footcandle and convert footcandles to watts/meter
Below is the feed on pachube - reading in footcandle.
Tuesday, April 12, 2011
Turn a current cost cc128 meter into a footcandle light meter
Here's a current cost TX unit modified to show ambient light levels. I added a photo-transistor to input ch1, and the unit now acts as a foot-candle calibrated light level meter. It has good dynamic range, from darkness to direct sunlight. Its possible to pair the TX unit as one of the 9 sensor channels on a CC128 meter - this way the light level doesn't get added to the house power total - and adding a livebox flashed with HAH you can easily send the data to Pachube.
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Hi I have one of these Current Cost CC128 electricity meters - I got it for £4 at a charity shop. Anyway I mess with electronics a bit and am into Radio aswell, when I got this home and looked at how it worked, I realised the box is also a transmitter - it transmits data to the screen wirelessly.
ReplyDeleteDo you have any more info on the device please?
I want to find out what frequency it transmits on, and also if the antenna inside can be modified to increase range
I reckon there are a few radio and wireless projects these could be used for and would love to contribute any ideas to your page.
Please contact me my name is Ben, I live in South Wales UK, and my email is raser.13@hotmail.com
Hi I have one of these Current Cost CC128 electricity meters - I got it for £4 at a charity shop. Anyway I mess with electronics a bit and am into Radio aswell, when I got this home and looked at how it worked, I realised the box is also a transmitter - it transmits data to the screen wirelessly.
ReplyDeleteDo you have any more info on the device please?
I want to find out what frequency it transmits on, and also if the antenna inside can be modified to increase range
I reckon there are a few radio and wireless projects these could be used for and would love to contribute any ideas to your page.
Please contact me my name is Ben, I live in South Wales UK, and my email is raser.13@hotmail.com