PART 2 - Optical Flow VS NO Optical Flow Position Hold RC Helicopter Eachine E110 and E120

00:00 Disconnect optical sensor.
01:29 Phone holder attachment that came with the Eachine E110
01:46 TRIAL ONE - GYRO CALIBRATION both sticks DOWN+LEFT.
01:58 Start motors, left stick DOWN+LEFT and right stick DOWN+RIGHT.
02:04 Take off method 1, left stick UP.
02:29 One button landing.
02:50 TRIAL TWO - Take off method 2, one button take off.
03:03 Fly fly-by.
03:21 One button landing.
03:44 TRIAL THREE.
04:51 TRIAL FOUR.
Purpose of this video observes the comparison of optical flow position hold characteristics VS NO optical flow on the Eachine E120 under measured wind conditions during flight. The Eachine E110 'spy drone' remains unchanged and can be seen as faring better in this Day 2 demonstration.
This is Part 2 Day 2 after the optical flow sensor on the Eachine E120 was disconnected and compared to the Eachine E110 in flight and compared to its own performance of the previous Day 1 video before the sensor was disconnected.
Wind speed was measured using consumer grade anemometer (cheap) and the weather app on phone to corroborate an approximation. Nothing precise or scientific here. Just having fun. The anemometer was secured with rubber bands to the phone holder mount that came with the Eachine E110.
The original body of the Eachine E120 is grey. The orange body on this Eachine E120 is a spare parts fit meant for the RC ERA C186 BO-105 model and can be purchased online.
The C186 model is sold under many different company brand names. But the ONLY model that includes the optical flow sensor technology is sold under the Eachine brand name as the E120 model.
I own both the Eachine E120 and the RC ERA C186. I purchased the Eachine optical flow sensor sold separately from Eachine and installed it on the RC ERA C186 frame and plugged (4 pin plug) it into the RC ERA integrated receiver board to no avail. It does not work, more than likely because of the additional firmware /programming Eachine performs for their product. Otherwise, the integrated receiver board on both models look identical.
The Eachine E110 is marketed as a 'spy drone' and has a unique body meant to resemble the real life military and defense application "Black Hornet".
These two models are very light micro helicopters and not very powerful. E110 is 1S 3.7V batteries and E120 is 2S 7.4V batteries. They get blown around by the wind and are no joy to fly when there is wind with gusts. As can be observed, they hold their own in windy gusts but that's about all. They just don't have the power in flight to go forward into the wind.
Under no wind or slight breeze conditions these things are an absolute blast to zip around with and provide much entertainment and fun.
I flew the pants off these things when I first got them =)
Hope you found something useful!