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IR Remote Issues with Buoyancy Engine

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  • IR Remote Issues with Buoyancy Engine

    When testing the Buoyancy engine, our Seaglider worked. After we successfully programmed our Seaglider with SeaGlideV1_0.ino we went to test the BE with IR Remote. Initially when we pressed the pause/play button on the IR remote the LED light lit up red, however after twenty seconds it turned off, but the Arduino light on the board remained on. We tried to hit the pause/play button again, but it isn't working. Any advice on how to troubleshoot further?

  • #2
    Were you successfully running the V0_9noIR?
    Does the servo move at all while the LED is red?
    Does a power cycle bring back IR remote capability temporarily?
    Last edited by Chris_nunes; 12-03-2020, 09:57 PM.

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    • #3
      The V0_9noIR was successfully running, there wasn't any movement but it was making noise. Everything got uploaded successfully. The servo did not move when the LED was red, but it did make a little noise. What do you mean when you say a power cycle?

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      • #4
        What I meant by power cycle was turning off the power and then turning it back on again.(clicking the switch or removing the battery)
        I would say: making noise and not moving does not equal working. (noise && !moving !=working);
        The servo should turn and the plunger should move.
        if the servo cannot turn, it could just be drawing a lot of power and killing the battery. (holding the servo coupler from rotating is called stalling the servo, it is the ultimate load for that device)
        Did you use the washers with the small screws that hold the servo in place? If these are skipped it could mean the screws went too deep and locked the servo coupler in place.
        If your screws are not locking you in place, I would pull the servo and bolt free of the Buoyancy Engine and just make sure that the servo spins when it is suppose to.

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        • #5
          Thank you for your help! When I started working on it again today (with no changes) it began to work. I just think it might've needed some time, but either way it's a success!

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          • #6
            Other than that, the only problem we have is that the IR Receiver and RGB LED fall out of the Arduino fairly easily. Could we solder it or electrical tape it in place?

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            • #7
              An hour later, it has decided not to work anymore. We pulled the servo out from the engine and it doesn't rotate but a tiny bit when we turn on the power. What should we do?

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              • #8
                Great! if the legs are in the sockets properly, they should not fall out. However, soldering them in should not harm anything.

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                • #9
                  Our glider has decided to stop working after I took it apart to add some grease lube to the bolt so it would move easier. We pulled the servo out from the engine and it doesn't rotate but a tiny bit when we turn on the power. The battery is fully charged. What should we do?

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                  • #10
                    The LED color should help troubleshoot a bit here:

                    1. If the LED is Orange for a while, then turns Green, you have a short in the limit switch somewhere. First look where the limit switch solders into the circuit board. Any stray strands of wire that short the two wires together will cause problems. If that looks good, make sure the limit switch is not stuck "pushed". That is, if it is jammed sideways. Finally, look closely where the button is glued into the 3D printed servo mount. Are the wires there touching at all?

                    2. If the LED is Red and stays Red, the motor should be trying to rotate. Check all of your soldering joints for any solder bridges (when solder leaks between two adjacent holes). Wiggle the wires in the power supply a little to see if there is a lose connection there. Remove all hardware from the servo, so that the motor is completely alone other than being plugged in and try again.
                    Finally, if you have a multimeter, check the voltage between the red and black servo wires while the power is on. If the servo is receiving about 6 or 7V, then unfortunately I think the servo is burned out and needs to be replaced.

                    3. If the LED is OFF, look for any tiny lights built onto the Arduino board. If there are no lights at all, then check all of your connections in your power supply circuit. Use a multimeter to test the voltage between the two JST connector pins. It should be between 6.5-8.5 Volts.


                    Hopefully one of those ideas gets your glider working again. Let us know how it goes or if you have any questions about any of the above.
                    Good luck!

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                    • #11
                      What should we do if the LED doesn't turn on, but the Arduino lights up? The voltage between the JST connector pins is 7.66 V and the voltage between the red and black servo wires is 7.64 V. We think the servo is probably burned out, but the LED isn't lighting up red anymore. When we turn on the power, the servo attempts to move a little bit and makes noise. If it's burned out, where do we buy a new servo?
                      Last edited by ullseaglider1; 12-16-2020, 11:27 AM.

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                      • #12
                        ullseaglider1 The servo is available from Sparkfun https://www.sparkfun.com/products/10189 Servo - Generic Continuous Rotation (Micro Size), ROB-10189

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