In SX Microcontrollers, SX/B Compiler and SX-Key Tool, metron9 wrote:

I have product I am ready to market that uses a Luxieon LED , an atmel tiiny13, a 5V regulator. The device regulates the intensity of the LED depending on the level of force exerted. I am running up to 6 of these devices from a 2A 6V DC supply. What I want to do is build a box wit 6 (5V) power cords out and one Jack for the 2A supply, in addition I will put a MIDI output jack. I intend to measure the current on each of the 6 lines going out with a current sensor, using the variable current as the volume indicator as the device that controlls the LED varies the currrent from 0 to 300 mA Peaks.

I intend to use the SX chip to process the signals and output a midi signal for each of 6 power cords going out to the devices.

I have been looking at devices such as http://www.gmw.com/electric_current/Sentron/CSA-1.html
or current sensing resistors: http://www.niccomp.com/Catalog/ncst.pdf#search=%22current%20sensing%20chips%22

Reading 6 zones or levels from 0 to 300 ma  (+-50mA) would be accurate enough.


What would be te lowest cost method to get the job done remembering I have 6 lines to read.

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