WLtoys V303 Supplemental Information
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WLtoys V303 Supplemental Information

WLtoys V303 Supplemental Information

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Appendix 1: WLToys V303 Supplemental Information v18
I am brand new to flying this type of craft, and have only been flying smaller quads and simulators for about 4 months
now. The following information is what I've learned from the fantastic and ever-helpful hobbyists on the RCGroups
thread "
The WLToys V303 (350 sized) "Seeker" quadcopter
I know there will be more hobbyists joining the ranks, and some with less experience than me, so I'm hoping this will
help in their pursuit of successfully flying the V303 Seeker.
I am a hobbyist and have no association with WLToys, thus this is not an official/sanctioned WLToys document. Various brands and websites are
referenced in this document, of which I have no association as either a representative or as a shareholder. I am merely a customer and offer these
brands & vendors as examples only.
Do not update Flight Controller with firmware from Zero Tech.
1.
has a modified version and if updated you will not be able to fly without updating to the WLToys
version of the Flight Controller Firmware which is now available. (remediation)
Do not attach V303 battery when quad is upside down.
2.
upright so that FC initialization/calibration does not cause stability issues. (remediation)

Table of Contents

Additional Resource Materials ................................................................................................................................................ 3
Functional Check Out and Configuration ................................................................................................................................ 3
Firmware ................................................................................................................................................................................. 5
LED Status ............................................................................................................................................................................... 5
Semi-documented TX Features/Functions .............................................................................................................................. 6
Transmitter ......................................................................................................................................................................... 6
Belly Connectors ................................................................................................................................................................. 6
Belly Wires (New Version) .................................................................................................................................................. 7
Loading PC Software for FC (PC-GCSoftware) ..................................................................................................................... 7
Problem Resolution ................................................................................................................................................................. 7
Battery Charger (Numerous symptoms/errors) .............................................................................................................. 8
Dead Battery or Battery unable to take a full charge ..................................................................................................... 8
Transmitter (TX) won't power up, even though the batteries are brand new ............................................................... 8
Quad won't power up .. no lights and no sounds .. when the battery is first attached. ................................................ 8
Initialization went great can't get GPS lock .................................................................................................................... 9
It initialized and I got GPS lock but I can't arm the motors. ........................................................................................... 9
1
review".
WARNING
WLToys
The quad must be
June-10-2015

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Summary of Contents for WLtoys V303

  • Page 1: Table Of Contents

    V303 Seeker. I am a hobbyist and have no association with WLToys, thus this is not an official/sanctioned WLToys document. Various brands and websites are referenced in this document, of which I have no association as either a representative or as a shareholder. I am merely a customer and offer these brands &...
  • Page 2 Appendix 1: WLToys V303 Supplemental Information v18 Got it into the air and it went berserk ..........................9 After FC initializes I get constant yellow lights......................10 I see yellow lights on Quad when flying in IOC mode when flying aggressively ............10 I crashed it, what should I do ............................

  • Page 3: Additional Resource Materials

     Images of the V303 Seeker including externals, unboxing and internals are here  Prop Guards: They are now offered by WLToys via your local point of sale. Users also report the DJI Phantom Guards work just fine  Props: Nothing has been found yet to perfectly replace the stock or replacement props provided by WLToys. Props are 9*4.7 units and the inner diameter of the rotor hub measures around 8mm (keyed).
  • Page 4 14. OPTIONAL STEP: Since there have been numerous reports related to problems with the internals a precautionary measure prior to flight is to open the V303. While this will likely void the warrantee … I’m not sure it has a warrantee to void.

  • Page 5: Firmware

    Update 141047 eliminated a FC problem where the V303 engines will stop when the throttle is turned to minimum position, so you should consider upgrading to it or a more recent version.

  • Page 6: Semi-Documented Tx Features/Functions

    4. Bottom Button – Camera Pitch Down: Channel 8 value 0 & 2 Down arrow displays on LCD when pressed Belly Connectors On the belly of the V303 are a set of connectors. While looking at the plugs on the belly of the Quad where the Micro USB is on top the wiring is as follows: ...

  • Page 7: Belly Wires (New Version)

    Warning: If you connect the quad to the USB and plug it into the PC running the software before you start the V303, you will be prompted with FC firmware upgrade. Exit app immediately.

  • Page 8: Battery Charger (Numerous Symptoms/Errors)

    V303. Don’t expect to add the cover and depth together since you’ll need room for the wires and plugs. The dimensions of the battery case as well as the 3s (3 cells) and 25C (25 amp constant current) parameters are critical in determining a replacement.

  • Page 9: When Inserting Lipo And Powering Up Beeps Are Heard But There Is No Led Indicator Showing Red/Green

    Appendix 1: WLToys V303 Supplemental Information v18 vi. Check that the black cylindrical capacitors on each ESC (on the 4 arms of the quad) are present. They can be reinforced with a bit of silicon sealant between the capacitor and the ESC board.

  • Page 10: After Fc Initializes I Get Constant Yellow Lights

    Controller if they do spin, but not stable in flight. After FC initializes I get This can happen if you powered up the V303 upside down. Here constant yellow lights. is a procedure which has worked for at least one user:...

  • Page 11: Can't Arm Motors & Rapid Red/Green Led

    Replacing V303 Transmitter/Receiver It is possible to use your own or a more sophisticated transmitter and receiver with the V303 while still using the WLToys firmware and not losing any functionality. Your transmitter/receiver should be capable of at least 6 channels, but you’ll need 8 channels to control a gimbal if desired.

  • Page 12: Full Person View (Fpv)

    You need to reverse throttle via your transmitter in most cases. You might need to remove the plastic housing of your receiver to get it to fit in the body of the V303. Also check the WLToys GUI to insure switches are working and RTH can be enabled.

  • Page 13: Module Installation

    Appendix 1: WLToys V303 Supplemental Information v18 The capabilities of the module include:  All Calibrations – Compass, Transmitter, Centering Sticks, Gyros  Flight Parameter Edit: Roll/Pitch sensitivity, Sway compensation, Throttle Sensitivity, Altitude and Distance Limits, Vertical and Horizontal Max speed limits.

  • Page 14: Enabling The Wi-Fi Module Connection

    Appendix 1: WLToys V303 Supplemental Information v18 The following connection directions apply to the less expensive Wi-Fi Module. Enabling the Wi-Fi Module Connection 1. Open the lid of the Wi-Fi module using a small screwdriver. 2. Plug in cables between belly of Quad and Wi-Fi module.

  • Page 15: Waypoints

    Appendix 1: WLToys V303 Supplemental Information v18 Waypoints WARNING: Do not use “Auto Make Waypoints” mode. There are reports that it corrupts internal data, and forces a reboot of the FC. All mixing and limits need to be rechecked prior to attempting a flight.

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