Hi,
I haven't done hobby electronics in many years, but am looking to get started with a small project I've had in my mind for a while.
I want to build a super simple wireless current sensor for a 120V outlet, sort of like a wireless kill-a-watt, (see http://www.amazon.com/P3-P4250-Kill-Watt-Wireless/dp/B00I9P2B8C/ref=sr_1_1?ie=UTF8&qid=1457804948&sr=8-1&keywords=wirele…)
I need to be able to read the 120VAC current draw from multiple appliances transmitted wirelessly to a central received hooked to a Raspberry Pi.
There are 4 parts to the wireless sensor
1. Power converter - 120VAC to 5VDC to power the circuit
2. 120V current sensor
3. some micro controller to read output from part 2 above and drive wireless transmitter
4. wireless transmitter (Bluetooth LE or 433 Mhz)
I've googled and found chips for all parts, but want to avoid reinventing the wheel if someone's done something like this before
-What's the minimum ICs that can do all the above?
-What the cheapest way to do this assuming it will be running all the time and the data will be transmitted continuously at 1 sec intervals?
Thanks for any pointers!
