wind_sensor:meeting_minutes_apr_14_2017

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wind_sensor:meeting_minutes_apr_14_2017 [2017/04/13 02:10]
mwu [Ultrasonic Wind Sensor] 		wind_sensor:meeting_minutes_apr_14_2017 [2021/09/19 21:59]
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-=====Wind Sensor Team Meeting-April 14, 2017===== +
-**Attended: Mengyuan, Creighton, Scott** +
-=====Acoustic Wind Sensor===== +
-  * Updates: +
-  * To Do: +
-=====Ultrasonic Wind Sensor===== +
-  * Updates: +
-    * Right before the CDR, made the realization that instead of going through the trouble of offsetting the received signal and using a threshold detector, we could keep the received signal centered at 0V and use a zero-crossing detector. This will simplify our design by quite a bit (we would forego the Schmitt trigger, threshold detectors, and possibly the amplifier). Also, the zero-crossing detector is relatively simple to build. +
-    * Experiments from 4/12/17: +
-      * Delay 12.5us using nops: +
-        * Not very reliable, a better approach would be to try and modify the timer'​s prescaler and initial value to achieve a 12.5us trigger. +
-      * Receiver response when sending just 1 pulse: +
-      * DigitalWrite() vs. fastDigitalWrite():​ +
-        * digitalWrite() rise ~ +
-        * digitalWriteFast() rise ~22ns +
-  * TO Do:+
  • wind_sensor/meeting_minutes_apr_14_2017.txt
  • Last modified: 2021/09/19 21:59
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