Talk:Other Hardware old
Revision as of 00:36, 31 January 2007 by Comm board (talk | contribs)
Pressure Sensor: MPXA6115A MPXH6115A
Interface, 3.3V I2C interface, 100khz, attiny as alternative processor.
MCU pic12f675 or equivalent low cost op-amp (not rail2rail) 1Mhz voltage doubler Precision 5.0V ldo 1x pwm output and at the same time ADC input, 0-3.3V 1x raw pressure sensor input, div 1.4 for 0-3.3V range (max resolution is 981 units), optional 1x offset adc input (raw-pwm_out)*gain(1000) Internal temperature sensor for full temperature compensation outside the 0-70degr. range. 16 times oversampling