http://wiki.paparazziuav.org/w/api.php?action=feedcontributions&feedformat=atom&user=Comm+board 2026-04-21T15:16:36Z User contributions MediaWiki 1.37.1 http://wiki.paparazziuav.org/w/index.php?title=Talk:Other_Hardware_old&diff=2009 2007-02-03T15:44:26Z

<p>Comm board: /* External pressure sensor board (altitude) */</p> <hr /> <div>== Internal pressure sensor ==<br /> needs access to analog grade psu.<br /> scp1000-d11, costs 20-21$ and can provide 10cm (3.3&quot;) accuracy with 2Hz update or 1mt (3.3 foot) with 7Hz update rate.<br /> The resolution is better. Interface is I2C.<br /> <br /> == External pressure sensor board (altitude) ==<br /> --[[User:Comm board|Comm board]] 07:46, 31 January 2007 (CET)<br /> <br /> Pressure Sensor:<br /> MPXA6115A <br /> MPXH6115A <br /> <br /> Interface, 3.3V I2C interface, 100khz, attiny as alternative processor.<br /> <br /> * MCU pic12f675 or equivalent<br /> * low cost op-amp (not rail2rail)<br /> * 1Mhz voltage doubler<br /> * Precision 5.0V ldo<br /> * 1x pwm output and at the same time ADC input, 0-3.3V<br /> * 1x raw pressure sensor input, div 1.4 for 0-3.3V range (max resolution is 981 units), optional<br /> * 1x offset adc input (raw-pwm_out)*gain(1000)<br /> * Internal temperature sensor for full temperature compensation outside the 0-70degr. range.<br /> * 16 times oversampling</div>

Comm board http://wiki.paparazziuav.org/w/index.php?title=Talk:Other_Hardware_old&diff=2001 2007-01-31T06:46:59Z

<p>Comm board: </p> <hr /> <div>== External pressure sensor board (altitude) ==<br /> --[[User:Comm board|Comm board]] 07:46, 31 January 2007 (CET)<br /> <br /> Pressure Sensor:<br /> MPXA6115A <br /> MPXH6115A <br /> <br /> Interface, 3.3V I2C interface, 100khz, attiny as alternative processor.<br /> <br /> * MCU pic12f675 or equivalent<br /> * low cost op-amp (not rail2rail)<br /> * 1Mhz voltage doubler<br /> * Precision 5.0V ldo<br /> * 1x pwm output and at the same time ADC input, 0-3.3V<br /> * 1x raw pressure sensor input, div 1.4 for 0-3.3V range (max resolution is 981 units), optional<br /> * 1x offset adc input (raw-pwm_out)*gain(1000)<br /> * Internal temperature sensor for full temperature compensation outside the 0-70degr. range.<br /> * 16 times oversampling</div>

Comm board http://wiki.paparazziuav.org/w/index.php?title=Talk:Other_Hardware_old&diff=2000 2007-01-31T06:36:56Z

<p>Comm board: </p> <hr /> <div>Pressure Sensor:<br /> MPXA6115A <br /> MPXH6115A <br /> <br /> Interface, 3.3V I2C interface, 100khz, attiny as alternative processor.<br /> <br /> MCU pic12f675 or equivalent<br /> low cost op-amp (not rail2rail)<br /> 1Mhz voltage doubler<br /> Precision 5.0V ldo<br /> 1x pwm output and at the same time ADC input, 0-3.3V<br /> 1x raw pressure sensor input, div 1.4 for 0-3.3V range (max resolution is 981 units), optional<br /> 1x offset adc input (raw-pwm_out)*gain(1000)<br /> Internal temperature sensor for full temperature compensation outside the 0-70degr. range.<br /> 16 times oversampling</div>

Comm board