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Messages - LukeZ

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Show and Tell / Re: XRAD'S Elefant
« on: July 09, 2018, 10:34:38 PM »
Wow, lots of stuff there. Not sure I followed all of it, but a few random comments: the 7805 is a voltage regulator, it takes an input voltage and spits out 5 volts. It usually requires a minimum of 7 volts to work, if you feed it 5 volts that won't be enough for it to turn on (or turn on fully). Presumably the fan is a 5 volt unit and they are using the 7805 to step down the higher voltage that would normally be taken from the motors in the original design. The diodes of course are to convert the forward/reverse movements of the two motors to a constant positive voltage for the smoker, that is the same system that Heng Long uses. But you don't need any of that diode stuff since you aren't driving this from the motors.

One thing you could have done is attach the heating coil to the smoker output, and the fan to the Aux output. The smoker output is full battery voltage, which you'd want for the heating element. The Aux output is 5 volts, which would match the fan. The heating element would be controlled automatically by the smoker function (or if you always wanted it full hot you could just assign the same trigger as you use to turn on/off the engine to the "Smoker - Manual On/Off" functions). For the fan you would then assign the "Engine Speed" trigger to the "Aux Output - Set Level" function, so the fan speed would automatically match the engine speed. No transistors or external circuitry required, and no extra transmitter switch either, the effect would be automatic.

But there are probably a dozen ways to skin the cat, and what you have is fine too.

Open Panzer Help / Re: TCB setup and sound
« on: July 08, 2018, 04:37:37 PM »
Ok, let me know if you have any problems with the Taigen sound card in the future. I'm sure it's not an issue with LiPo power since the TCB provides the Taigen with 5 volts regardless of what voltage you plug into the TCB.

If Radio Setup can read all 8 channels then you can definitely use all 8 channels for functions. But note that analog channels, which I'm assuming is how you've defined your Channel 7 pot, can only control analog functions; and digital (switch) channels can only control discrete functions.

If you are unsure whether a function is analog or digital, check out the Function List and note that each function has a (D) or an (A) next to its name.

For example if you select the function "Engine - Turn On" then no, you will not see the Channel 7 pot in the trigger source list, because that function requires a switch and you have defined channel 7 as a pot. If on the other hand you selected the function "Set Deceleration Level" then you will see your Channel 7 pot in the trigger source list, because that function requires a variable input.

Note that you don't have to define a pot as a pot in OP Config. It could be a pot on your transmitter but you are free to tell OP Config that is a switch, and vice-versa. By doing so you could actually turn the engine on or off with a physical pot to use our example above, though that doesn't make a lot of sense. There are some unusual situations where this kind of thing can be advantageous for advanced users, but most of the time it's not needed and I'm not recommending it to you now.

In your case I think the issue you encountered is that you didn't see that aux channel in the trigger list and assumed it wasn't working, but actually it was just hidden because it didn't make sense for the function you were assigning triggers to, and you will find that it automatically re-appears if you select an analog function.

Show and Tell / Re: XRAD'S Elefant
« on: July 08, 2018, 04:23:51 PM »
Good news, sounds like you've gotten it all straightened out. It seems to me the fact that one ESC was in F-R mode and the other in F-B-R explains entirely the issue you had with the vehicle not driving straight forward and back. For reference, it is better to put them both in F-R mode, otherwise known as crawler mode. Let the TCB handle the braking, which it can do much better than the speed controllers because there are two of them and they don't know what the other is thinking. If you still prefer double-tap reverse you can accomplish that with the TCB as well by setting a "Change Direction Delay" on the Motors tab of OP Config.

The message about not loading all the settings (319 instead of 320 for example) is completely normal. One of the reasons for a firmware update is to add new variables that didn't exist before. Obviously if you import an OPZ file that was saved prior to the update, that OPZ file isn't going to know anything about the new variable that was just added. OP Config will still import all the existing variables from the OPZ file and any that are missing (because they are new) will just be set to default values.

As for whatever other issues you had, since they are gone now there is no point in worrying about them unless they return. You tried a whole bunch of different things so it's kind of hard to identify what was related to what, if it's working then it's working and whatever the issue was has been resolved.

Open Panzer Help / Re: Reverse is like a switch
« on: July 06, 2018, 11:03:19 PM »
You fixed it before I had a chance to reply! You're getting good.

Open Panzer Help / Re: TCB setup and sound
« on: July 06, 2018, 11:17:28 AM »
the main issue other than being unable to use all the switches/functions on the turnigy 9x
Is there something wrong with the TCB that it won't read all the channels on the 9x?

the main issue ... is that the sound cuts out at a seemingly low volume when applying throttle. Did think i had read somewhere o the site about this?
This is not something I've experienced before, or heard about. Do you mean that when you advance throttle the sound turns off? Does the engine shut-down sound play, or does the volume simply go away? If the latter, does the volume return when you release the throttle?

The settings on the TCB are at a low level but not sure if this affects the taigen or only other sound cards.
What setting are you referring to that is at a "low level"? There are really no settings for the Taigen sound card other than whether or not you want the turret sounds included.

Open Panzer Help / Re: RC pass-though/pan servo
« on: July 04, 2018, 01:11:15 PM »
I see what you mean Johnny. Of course with enough time and effort anything is possible, but the utility of every feature has to be weighed against the complexity it creates, and the number of people who might even want to use it, etc... Limitations have to exist and boundaries have to be drawn somewhere, if only for our own sanity; I think this is one of those cases.

From the very beginning the intent and design of the TCB was for it to be used with modern, high-channel-count radios. It doesn't even accept standard servo inputs! I don't know of any controller on the market today that can read 16 channels or give so many options for combining channels and functions. To use it with a 6 channel radio is to miss the point, it's like putting grocery cart wheels on a Ferrari. Tell your clients they need to upgrade! It surely can't be an issue of money, this is not a cheap hobby to begin with.

I agree with Jurgen, a new transmitter is the best solution in this case.

Show and Tell / Re: XRAD'S Elefant
« on: July 03, 2018, 06:30:10 PM »
Side note: I did change up ESC's and drive motors, right side still weaker in Sbus.  When ESC's running off Rx in PWM mode, drive strength is symmetric.

I think this is a crucial piece of information. For one, it would seem to rule out mechanical drag, so we can ignore that. Theoretically it should also rule out any inadvertent mixing or weird settings in the transmitter, since those would affect PWM and SBus equally (they are just a different means of communicating the same signal from the transmitter).

I can say that inside of the TCB firmware, if you give forward throttle and no turn command, the precise same PWM signal is sent to both the left and right motors. The fact that your tank seems to want to turn implies this is not happening, and we can only conclude some kind of turn signal is being introduced even when you don't intend for it to be.

The thing I would usually look to first of all is radio setup. If radio setup didn't get saved correctly for some reason, and the TCB thinks the center point of your turn channel is not actually where it is, that would certainly cause this behavior.

The other thing you can do while reading the radio signal in OP Config is to watch the turn channel signal and see if it is jittery or drifting. Being SBus it should not be, in fact it should be fairly well locked right near 1500. Also while reading the radio signal, you can try advancing your throttle stick without turning to the left or right, and watch the screen in OP Config to see if the turn signal shows any deviation. If so that would tend to imply a mix in the transmitter. 

Basically some more elimination needs to happen until we can get to the bottom of it, but something unusual is definitely going on. Given your experience in RC and electronics I am certain you will pinpoint it eventually.

Show and Tell / Re: Torro Tiger II acoustic smoker
« on: July 03, 2018, 06:08:39 PM »
Johnny, that's a stunning model, and a very nice shop too by the way! I do have an idea of how much time it takes to complete a model to that high of a standard, which is why I have never understood how anyone could build one for the purpose of a client - for me, no reasonable amount of money they could offer would be worth the time and effort! You must be both very efficient and proficient - but fast or slow, you are certainly a master detail-er.

As you are also clearly well versed in 3D printing, perhaps one thing we can talk about later is designing a small bracket to mount a 40mm fan to the Scout board. I won't get off-topic in this thread but when you get to that point on your next model be prepared for me to ask you about it!  :)

Open Panzer Help / Re: RC pass-though/pan servo
« on: July 03, 2018, 01:03:19 PM »
Sergey, the RC passthrough function will only accept "analog" aux channel inputs, yours must all be defined as "switches" since none show in your list of Trigger Sources.

Note that even if a channel on your radio is a switch, you are free to call it "analog" in OP Config. Then you can assign it to an RC Passthrough, and use it to control a servo exactly as you describe.

The switch/analog distinction is useful primarily for OP Config to display to you the appropriate internal functions that such triggers can control. But when you are just going to "pass-through" the signal, then it doesn't matter. Set your aux channel to analog so it can be passed-through, but on your transmitter it can be a switch or anything else.

Johnny, I don't know about an "AND" function... If you mean that you would like a single trigger source to control multiple functions, that is already possible.

Open Panzer Help / Re: Anomaly with HK 45A ESCs
« on: July 02, 2018, 04:03:53 PM »
I'm glad that's all it was, and nothing got fried!

Out of curiosity I wonder if your Scout assembling experiments ever came to fruition? It would be interesting to see if the Scout is able to compensate for the turning issue using the special setting that it has. It works for me but to my knowledge no one else has tested it on a comparable model with similar issues.

Open Panzer Help / Re: Anomaly with HK 45A ESCs
« on: June 30, 2018, 05:03:02 AM »
I then soldered the inputs together on a Dean's connector that connected to the switch in the normal fashion (left switch pole to black/negative, center pole to ESCs & TCB, and right pole to Battery).

Can you draw a diagram of how you have the switch wired? This verbal description actually does not sound like the normal fashion, but perhaps I am not visualizing it correctly. Maybe take a picture of your arrangement.

If you are melting contacts then you are most likely experiencing a direct short somewhere. My best guess is that your ESCs are fine, but you have accidentally mis-wired your switch harness somehow.

Then I connected the battery directly to the ESC combination, and they both lit the LEDs, made the appropriate noises (they make a few tones upon energizing) and sat there waiting for instructions from the TCB.

It seems highly unlikely the charge current is the issue. If it were, when you connected the pair directly to the battery as described here, you would probably see/experience one heck of a spark when you plugged in the Dean's connector to the battery.

Show and Tell / Re: XRAD'S Elefant
« on: June 29, 2018, 08:12:39 PM »

Had some issues 'connecting' to the TCB with the recommended FTDI VCP driver and set-up. I am able to snoop and update firmware no issue. however, opconfig failing to 'connect.'  So I tried snooping several times and then connecting, and connecting is still hit or miss but better after a snoop.

As you are probably aware several users have reported a similar problem, though I have not been able to replicate it on my end, and it doesn't affect all users. There is a note about this in the Troubleshooting guide. The solution as you have found is to first open a Snoop connection, and only after click the Connect button. This should always work, but it is important after you open Snoop to wait a few seconds for the TCB to finish spitting out whatever it is going to spit out (either "waiting for radio" or if the radio is found it will dump a bunch of settings). After that is done then click Connect.

You also mentioned in another thread that your TCB came with a faulty dipswitch #5. This switch is directly related to the TCB's ability to connect to your computer. So I don't know in what way you determined it was broken or what you might have done to fix it, but if it is at all intermittent or loose or whatever, that is also going to cause you lots of problems.

I tried updating the firmware(newest version, easily loads 100% each time), and then connecting, and this usually works. But I don't want to have to update firmware each time.
I agree, this is a lot of extra work and indeed there are times when you specifically do not want to be updating firmware repeatedly over and over (some updates will overwrite prior settings) so I don't recommend this approach. Just use the Snoop first, then Connect trick.

In snoop mode, i can see all switch functions (gun fire, engine on, MG, smoker) working fine. I can see also forward throttle but not reverse left,right, or turret turn -gun elevation.
You definitely should see both forward and reverse messages, so if reverse isn't showing somethings is wrong with your radio setup. You can also use the red and green LEDs on the TCB to confirm forward and reverse movement, see the LED key here. Left and right turns, as well as turret movements are not presently listed by Snoop so that is normal.

Second issue is that I have uploaded my config settings (after setting stick centers and limits on channel 1,2,3,4) but the driving stick functions are a bit wonky. Turret and gun elevation work fine.  but with driving, stick straight back is not reverse, but rather back and slightly left.   forward is up and slightly right. Weak right turn, strong left turn. I changed up motors/esc's and tried 're-centering/limits' on drive channels, no change. maybe the radiolink Rx puts out a bit different sbus sequence for these channels than expected.   Using hobbywing 40amp esc's(with 5v red wire removed).
I don't know what the issue is here, but it is not SBus. SBus is a standard and by definition it is implemented the same by all, but even if there are variations that is what saving the stick centers and end-points is for, it would adjust for those. If that process has been performed correctly then the TCB truly does know the center and end-points of your channels. The fact that you weren't seeing reverse in your earlier comment makes me wonder if that process completed successfully.

What you want to make certain of is that you have no mixing, dual rates or other modifications defined for those channels in your Transmitter.

The other thing to check is whether you have excessive mechanical resistance in one of your tracks, possibly in the left track since it wants to turn left. If you have a servo Y-cable, eliminate the TCB for a moment and hook up both your ESCs to the forward/reverse channel directly on your RC receiver. You won't be able to turn, but you should be able to test driving forwards and backwards. Since both ESCs are receiving the exact same signal, if your tank keeps turning left that would indicate you have something hanging up your left track. You can also try swapping the left and right ESCs to see if that makes a difference (it should not).

If you don't find any problem there go back and re-visit your Transmitter settings and re-do Radio Setup to make sure everything really has been saved correctly. While streaming the radio, watch the values for the throttle and turn stick channels. Do they fluctuate a lot even when the sticks are still? If so you may want to increase the Deadband to a value higher than the highest static discrepancy.

Also try disabling Neutral Turns temporarily (on the Driving Tab) and see if that makes any difference.

Open Panzer Help / Re: check TCB visually before power up!!
« on: June 28, 2018, 01:32:04 PM »
I'm assuming dipswitch 5 must be "broken" in the on-position? Otherwise it would be difficult to communicate over USB.

It sounds like you have it worked out, but if you have issues let us know, there are workarounds. You can replace the entire switch as Shad says but there are other things you can do even more simple than that if necessary.

Show and Tell / Re: XRAD'S Elefant
« on: June 27, 2018, 05:01:01 PM »
Hi Rad, you certainly do have a lot of interesting projects on your YouTube, you must stay busy. The Elephant is looking good and I'm glad you like the TCB so far. Thanks for mentioning your radio setup, I don't think the R12DS receiver was available when I first wrote the Wiki so now I've been able to update it. Looks like RadioLink now has telemetry options even, seems like a good radio.

Keep us posted.

Show and Tell / Re: 3D Printed T-35
« on: June 05, 2018, 12:55:35 PM »
Good job Dean. Not many people have designed and completed an entire 3D printed model, so you have joined a small club indeed. No one can say you chose an easy model to start with either!

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