Friends i need to measure Dc current from solar Panel Unit rated at 48V,8A using arduino and then transmit it to a location about 50m away wirelessly using Arduino.
Please guide me in this..
Do one needs A hall sensor for this ..
Xbee isnt too over priced?
Regards,
Rohit
You can probably find something cheaper than an Xbee such as a dedicated RF serial link tx/rx pair - or a cheap ISM transceiver pair (although 50m is perhaps a little ambitious for some. Possibly the ones used by Jeelabs might do - jeelabs.com (they have Arduino-compatible modules)
For measuring the current (and voltage) there are various modules out there - for instance several different types here: http://www.coolcomponents.co.uk/catalog/index.php?cPath=36_61.
DC hall current sensor is what's required with 0-5 volts DC output such as a CSLA2C or similarfor direct feeding into the arduino.