Search results

Yes...... Mech and Electrical Engineers cannot get far without the calculus and PID loop control is the essence of calculus. The higher the motor torque capability relative to the load, the faster the motor can change to the target speed. But even PID loop controllers have finite time...

Both Mechanical Engineers and Electrical Engineers have to use calculus on an ongoing basis...... but almost predominantly PID loop control......and now all the modern day hobbyists and robotic systems developers. originally conceived by Sir Isaac Newton in his book - Principa Mathmatica...

One more possible reason why small electronic components can fail over time: lead free solder points can grow!!!!! http://lockheedmartin.com/us/news/features/2013/tin-whiskers.html

There are several flyers in eastern Canada hired to fly their Multirotors for the purpose of scaring off Canada Geese from parks, beaches and golf courses. They install noise makers and flashing lights which seem to be effective.... not sure if that would work for hawks though!

I get the impression that the Multirotor can go haywire, if after locking in it's GPS position before take-off, the new GPS data coming in becomes bogus, i.e., is substantially offset from the home location. This condition would not be a loss of GPS signal but a new and faulty GPS position...

I have noticed over time that even the WKM flying with 5.20 fw will suddenly veer off to one side and crash during takeoff..about one if 50 flights or so.. Twice with mine, twice with a colleague's twice with client #1 and once most recently with client #2...... These cases seem to occur...

Back in the 80's when I was in to hang gliding, soaring along mountains/ridges, the only birds that would approach us were the hawks.....they were eager for us to leave but apparently confused as to where to attack, so would fly in very close along side of us. We could not keep up with the...

http://metronews.ca/news/canada/1204832/canada-changing-the-commercial-drone-game/

Bartman, Do you still sell these and will they work with the T-Motor 4012 - 11 400KV motors? Thanks.

Here is a picture to help with the written description by Hexacrafter. Note that Opto-coupler will only isolate signal noise. ESC chips can also succumb to power supply ripple etc. (less likely on a DC bus fed by batteries but not impossible. As an example, fast switching diodes or FETs can...

Redundancy offers tremendous benefits and is worthy of consideration where the size and weight of the electronic components is minimal as well as the electrical power demand. In the Industrial Electrical and Automation Engineering world there is a system for high risk applications called SIL -...

Redundancy offers tremendous benefits and is worthy of consideration where the size and weight of the electronic components is minimal as well as the electrical power demand. In the Industrial Electrical and Automation Engineering world there is a system for high risk applications called SIL -...

Hard case batteries are heavier...... which equates to reduced air time. Use soft case batteries and mount in a location that provides some degree of protection from puncture etc. Or strap on a thin protective plywood or carbon fiber plate before tying them down.

What happens immediately after the Multirotor has locked in it's GPS home location, but there is a sudden loss of new GPS positional data just as the Multirotor takes off in GPS mode? Or where the FC cannot determine the new GPS position during the takeoff? Could this lead to: a) shifting...

I just upgraded to the new firmware version 2.43 b6 from previous 2.42 b7 and noticed that the GUI has removed the RC control of Yaw motor..... Do you happen to know why and/or where it went? Otherwise the system works fine.

Don't get your hopes up...... even an instantaneous soak in salt water might be too late!

I don't see to have such issues unless I am in "follow" mode which I try to avoid. I stick with "heading" mode. Assuming your IMUs are precisely mounted as per the instructions, there is no inbalance on any axis, and precisely calibrated and the BGC function set to "Heading" mode you should...

I would not be the best one to ask.

Where you live can make a difference. Many small components are manufactured in many countries, including Germany, Latvia, Sweden, Turkey etc. then redirected to Malaysia or China for cheap labour assembly. Other items are assembled in Mexico. Many items I have purchased from RCTimer in...

Where you live can make a difference. Many small components are manufactured in many countries, including Germany, Latvia, Sweden, Turkey etc. then redirected to Malaysia or China for cheap labour assembly. Other items are assembled in Mexico. Many items I have purchased from RCTimer in...