{"id":410,"date":"2016-04-16T21:56:23","date_gmt":"2016-04-16T21:56:23","guid":{"rendered":"http:\/\/jaisor.net\/?p=410"},"modified":"2016-04-16T21:56:23","modified_gmt":"2016-04-16T21:56:23","slug":"cleanflight-betaflight-virtual-current-sensor-tutorial","status":"publish","type":"post","link":"https:\/\/jaisor.net\/index.php\/2016\/04\/16\/cleanflight-betaflight-virtual-current-sensor-tutorial\/","title":{"rendered":"Cleanflight \/ Betaflight Virtual Current Sensor Tutorial"},"content":{"rendered":"

I always considered current sensor, amps and mAh measurements out-of-reach concepts, left for specialized \/ proprietary hardware\u00a0for big-brand builds like the Vortex, DJI etc.\u00a0I knew\u00a0Cleanflight Configurator supports the concept and browsing through the docs few weeks back, I\u00a0stumbled on the Virtual Current Sensor description<\/a>\u00a0It looked simple enough so I tried it, seems to work pretty well, so I decided to share my quick setup.<\/p>\n

DISCLAIMER: Standing\u00a0near an armed multi-rotor running at full throttle is dangerous! Do at your own risk. Check and re-check your straps or other stabilization system and ensure the craft cannot lift, tilt, fall off or cut through the restraints. Make sure the propellers and other moving parts\u00a0are not at risk of snagging\/cutting something.<\/strong><\/span><\/p>\n

As the docs state, the virtual sensor needs to be calibrated\u00a0with an offset and scale parameters using two\u00a0recommended\u00a0methods:<\/p>\n

    \n
  1. Actual Current Measurement – with a power analuzer, current meter, etc<\/li>\n
  2. Battery Charger Measurement – with a charger that show accurately how much mAh were charged.<\/li>\n<\/ol>\n

    I went for #1 as I recently acquired a power analyzer tool for my thrust test<\/a> setup.<\/p>\n

    Setup<\/h2>\n

    \"2016-04-16<\/a><\/p>\n