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PropVario, a DIY Variometer/Altimeter With Voice Output ...
https://www.instructables.com/PropVario-a-DIY-VariometerAltimeter-with-voice-out/#:~:text=%20PropVario%2C%20a%20DIY%20Variometer%2FAltimeter%20With%20Voice%20Output,to%20flash%20the%20Eeprom%20of%20the...%20More%20
DIY audio variometer first test - YouTube
https://www.youtube.com/watch?v=C3d1W1Y_L1w
I built a small device that senses small variations in air pressure and sends audio to a small radio receiver. When it goes beep beep you can tell the plane ...
My DIY Audio Variometer Demo (R/C sailplane …
https://www.youtube.com/watch?v=NB_vknk4_vw
See here for schematic: http://www.rcgroups.com/forums/showthread.php?t=1749208Continuous sound: going down. Low pitch = high rate. Intermittent sound: going...
PropVario, a DIY Variometer/Altimeter With Voice Output ...
https://www.instructables.com/PropVario-a-DIY-VariometerAltimeter-with-voice-out/
PropVario, a DIY Variometer/Altimeter With Voice Output for RC Sailplanes Step 1: What You Need. Step 2: PCB or Stripboard. If you want to use a stripboard or the like here's the schematic diagram and you could skip... Step 3: PCB. Step 4: Programming the Vario and Prepare SD-card. If …
Dave's Homemade Variometer Coil - makearadio.com
http://makearadio.com/misc-stuff/variometer.php
Wind the 24 turns above the bushings and when done, poke another two holes side by side and about a half inch apart. Thread the wire through these holes. The end of the wire should come out the outside of the top of the variometer assembly. Next do the same thing with the wire on the bottom until you have 24 turns there too.
DIY simple and inexpensive Arduino-based sailplane variometer
https://www.rcgroups.com/forums/showthread.php?1749208-DIY-simple-and-inexpensive-Arduino-based-sailplane-variometer
My DIY Audio Variometer Demo (R/C sailplane thermalling) (1 min 43 sec) My simple and inexpensive Arduino-based sailplane vario (1 min 41 sec) This is my second vario design. The previous one was expensive and bulky. Also the pressure sensor used turned out to be sensitive for RF. This one has no such problems.
GitHub - har-in-air/ESP8266_MPU9250_MS5611_VARIO: …
https://github.com/har-in-air/ESP8266_MPU9250_MS5611_VARIO
DIY friendly, cheap, fast and accurate audio-only variometer using widely available off-the-shelf modules, so minimal assembly required. Features : uses earthframe-z acceleration computed from MPU9250 data, and z altitude calculated from MS5611 barometric pressure, for a "zero-lag" variometer response. zeroes beeps, for weak lift, indicated with short pulses and …
Variometer | Hackaday
https://hackaday.com/tag/variometer/
PropVario is a combination variometer and altimeter for Radio Controlled sailplanes. We’ve seen a few variometers in the past, most often for full-scale sailplane or hang glider pilots. Almost ...
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