Relay and power-measuring PCB design
In this project I'm looking for a professional who can design relay and power measurement device. The device should be based on spark.io board.
Typical line voltage/power consumption is 110/220V, up to 1KW power. There will be several device variations. It should be possible to read power consumption level from device and to switch relay on/off.
Compact device size is very important.
I will need you to organize prototype production. Will you be able to organize prototype production and dellver prototype devices?
If possible, in you message please specify the estimated device size. How device size change if we need to measure power up to 10 or 20KW? Please also let me know your effort (i.e. working hours) and timeframe (i.e. days) estimate by project phase (e.g. PCB design, prototyping).