I have triple checked everything and I am dumbfounded. I made sure my Tx was set to PCM on the transmitter itself as well as in the FCT flash. My Rx is lit up from the usb power source (through the nano to the Rx using red and black harness wires) so I know it is working. I even went through the process of rebinding it. My transmitter uses:
Ch 1 Aileron- white harness wire from nano
Ch 2 Ele- blue
Ch 3 throttle- gray
Ch 4 rudder- purple
On the multiwii gui I can connect via com 3. I click start and then read. I cannot get the values in the upper right to budge off of 1500. The sensors appear to be working fine as I tilt the quad. Moving the sticks on the transmitter has no effect on the numbers displayed at 1500.
Thanks
Here are some pictures of the wiring and other assorted pics that my/may not be helpful. I also rebound the receiver just in case. I took a voltage measurement at the neg and pos pins on the receiver and I got 4.6v.
I did not because I believed I read that the only power was to come through the usb cable. To be sure what you are saying:
Leave red and black where they are
Connect a ESC to the Nano using the 3 wire plug
Apply power to the ESCs via battery
Shall I connect the other 3 ESCs (1 signal wire each) to the Nano?
Supplying power to the Nano through the usb as well as from the battery (via the ESC) will not be an issue?
Unfortunately the USB cable cannot provide enough power to both the flight controller and the receiver, despite the light being on.
You only need one BEC active; normally one BEC can provide well over 1A at 5V which is enough to power the flight controller and the receiver.
You should remove the red wire from all but one of the RC connectors of the ESCs (you don’t want multiple BECs fighting to power the electronics).
The other R/C connectors from the ESCs should only have the signal wire and ground. The onboard electronics take care of power.
Once you complete the build you’ll find that you still need to connect the USB to change settings on the Quadrino, and disconnecting everything would be quite a chore.
Using the ESC wiring harnesses provided with the Nano I plan on:
Connecting the one with 3 wires to a ESC to provide power to the Nano
The other 3 connectors from the Nano harness connect to the other 3 ESCs. No wire cutting should be necessary because the connectors only have a signal wire and will not send current to the Nano.
The red and black wires from the Nano will power the receiver once battery power is connected.
Connect the usb cable for readings while battery is still connected. Not an overpower issue.
Whelp. I did what was instructed and the Nano just made a pop noise and could no longer be powered from the battery. None of the lights work. It still powered up from the usb but that did no good. The ESCs did beep this time with the battery and usb connected. The pictures will show I removed the red lead from all 3 connectors with the exception of the last one which had all 3 wires.
(EDIT ADDED) I took a voltage measurement from the esc to nano connector. It is 5v on the nose.
]Battery -> ESC (or Battery -> Power distribution -> ESC) /:m] ]BEC (of ESC) -> Quadrino Nano/:m] ]Receiver -> Quadrino Nano/:m] ]USB -> Quadrino Nano/:m]You don’t need any of the other connections (to the ESCs or to the motors) in place for testing.
I have the rig wired as you have explained. The last set of pictures I sent shows where I disabled the power leads from 3 of the 4 ESC connectors while leaving 1 to power the Nano. When I connected the battery to the ESCs is when I heard the pop. The Nano does not light up when battery is applied. I checked the voltage off of the power ESC and it reads 5 volts. When I connect the USB cable to the Nano I do get power.
Shouldn’t the Nano power up from the battery (through the ESC) before adding the USB cable? I have disconnected the other 3 ESCs from the Nano even though only the signal wires were connected as I made the connector modification as suggested and the Nano wiring harness does not allow for multiple power sources to reach the Nano because it only has 1 signal wire available.
Yes it should. Honestly don’t know where the pop came from. If you say you’ve connected everything as described, we’ll look into what may have happened and get back to you shortly.
I am wondering if it is the classic diode issue. I am more than willing to take any multimeter measurements suggested to confirm. I will add that the rig was working with a KK2.1.5 prior to upgrading. I am sure that the ESCs are operating correctly and I measured the voltage from the only ESC delivering power to the Nano as the required 5 volts. I am also sure (and you can see from pictures) that everything was wired correctly. I even went a little overboard with my questions and tried to take receiver measurements without battery power because I was paranoid that battery plus USB would cause power overload. I am willing to ship the unit and wiring harnesses for inspection/repair. I will await your instructions. I am very excited about getting this project going and I believe in this company/product as well as the support personnel.
We’ll take a look and get back to you on Monday. This is the first time we have heard of such an issue so we’re seeing on our end if we can reproduce it.
Can you take a look at the FCT application under “Options/Receiver” and confirm the Receiver protocol selected ? (FCT - Receiver.png)
You might want to get into your “Profile” folder and zip the whole folder to attach it here on the forum.
For powering, the USB should work just fine for testing and it should be able to power the receiver.
When using it in the copter however, one of the ESC will power the Quadrino from its internal BEC. The orange / D3 cable is populated with power and ground wires.
A clarification: no need to remove the power pins/wires from the other ESC’s since the wires are not populated on the Quadrino Nano wiring harness.
This was designed specifically to save you time and also avoid issues.
Here is the file. I did not think I had to pull back my red wires from the ESCs before connection but I did so as asked. The Rx protocol I used was Standard PCM. THe Tx model is FS-TH9x. THe Rx model is FlySky FS-R9b. Thanks MyDrone.zip (1.01 MB)
Did you receive the working board from Colin ?
You have the right protocol, do you have any RC servo on hand that you can connect to your Receiver to see if the signal work ? If not we suggest to do the “Binding” between the receiver and the transmitter.
I do not have any servos on hand. I redid the binding process 3x. I believe I had to switch the transmitter to PPM in order for it to work on a kk2.1.5 board that I bought when my Nano was on backorder. I am not sure why this was. I was going to try this method for the Nano to see if I could get a signal but the FCT only gave me a limited number of options with manufacturer and none of them matched my description. I have not received anything from the post office today.
If your Transmitter/Receiver are in PPM mode, you will need to put the Quadrino Nano in PPM mode as well.
When you connected your receiver to the KK board, did you have only one cable (Positive / Negative / Signal) going to the board ?
We found online that the FrSky need the following sequence of channels for PPM: #define SERIAL_SUM_PPM ROLL,PITCH,THROTTLE,YAW,AUX1,AUX2,AUX3,AUX4
Try to un-zip the attached profile which is revised with the PPM setting.
Just go direct to the “flash” page and try it.
Well I flashed the Nano successfully with the file that you sent me. I then re-bound the receiver (which I also read needed its own power source that I provided, The red and black leads from the Nano were not cutting it). When I tried to connect the usb cable back to the Nano the plug popped right off of the board the same way it did for my other unit that Colin is shipping back to me. I assure you I have been gentle with this cable as I learned my lesson with the previous plug. The metal part is inside the plastic case so there is nothing I can do to support or brace it while I insert the plug.
I am now facing 2 issues with this particular unit:
1: the USB plug is no longer attached to the board
2: the unit does not light up with 5v power from an esc. I have confirmed that the ESC is sending 5v. There was a thought by Colin that the ESC was providing too much voltage under load so I conducted a test (recommended by Colin) using a 10 ohm/10 watt resistor and confirmed that the esc was still only sending 5v under a load.
Hopefully I will get the other unit today.
I made sure that the comm wires were ordered off the receiver to the Nano in the order listed in the flash update that you sent.
I am currently powering the receiver from one of the ESCs. I took the signal wire out of the harness so I can eventually connect it to the Nano on its own.
When I get the other unit from Colin I am going to seat it in this chassis but I am afraid to power it from an ESC because when I connected the plug from the top Nano wiring harness (orange/red/black) to the ESC connector (orange/red/black) and applied battery power is when I heard the pop last time, then the unit no longer powered up from battery power.
I am willing to try (purchase) an alternate power method for the Nano if recommended. I do not know why attaching the ESC as above would cause the pop.
I will await further instruction.
