Submitted by TrystanLea on Sat, 02/13/2010 - 22:06.
Hi Louis
Yea, your rectifier should work fine, what's its forward voltage? Some higher voltage rectifiers have higher forward voltages than lower voltage rectifiers and so would have larger losses. The one I'm using is 50V 1.5A and has a forward voltage of 1V.
Sure you could use a GPRS shield although the cost of the shield I think is more than an extra arduino and ethernet shield? so might not bring the cost down but would be pretty cool! I'm going to make another energy monitor for a house down the road using just one arduino doing measurement and ethernet :)
I'm not sure what your best bet is with not having an arduino on the sensor side is. Maybe you could use an Xbee wireless link, adafruit's Xbee's have ADC's in them and so could send the analog reading from the CT to the arduino for processing. But I'm not sure if it would be fast enough for accurate readings.
Hi Louis Yea, your rectifier
Hi Louis
Yea, your rectifier should work fine, what's its forward voltage? Some higher voltage rectifiers have higher forward voltages than lower voltage rectifiers and so would have larger losses. The one I'm using is 50V 1.5A and has a forward voltage of 1V.
Sure you could use a GPRS shield although the cost of the shield I think is more than an extra arduino and ethernet shield? so might not bring the cost down but would be pretty cool! I'm going to make another energy monitor for a house down the road using just one arduino doing measurement and ethernet :)
I'm not sure what your best bet is with not having an arduino on the sensor side is. Maybe you could use an Xbee wireless link, adafruit's Xbee's have ADC's in them and so could send the analog reading from the CT to the arduino for processing. But I'm not sure if it would be fast enough for accurate readings.
Have you seen these RF modules, they would still need an arduino as they relay serial data but are pretty cheap: http://www.coolcomponents.co.uk/catalog/product_info.php?cPath=25&products_id=186
Maybe the one of the arduino's could be a cheaper small one: http://www.coolcomponents.co.uk/catalog/product_info.php?cPath=50&products_id=176
I will let you know if I come across something that does what you want and is much cheaper than using 2 arduino's and the rf link above.