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Messages - LukeZ
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196
« on: March 08, 2021, 11:42:32 PM »
Hi Paul, I think your SD card holder is working, because if it were not, the red LED would be blinking very rapidly. Instead you are getting the expected blue LED, which tell us that the Teensy was able to read the SD card and has proceeded to normal operation. If you plan to build these kinds of boards you really might want to experiment with reflow soldering. Very few items are required: some solder paste, a heat source and thermometer to monitor the temperature, and of course a stencil. You can order a stencil for the Open Panzer sound card (and all our other boards) from OSH Stencils (the links are on the downloads page, or you can click here). I'm pretty sure they will ship to Europe but I don't know what the price will be.
197
« on: March 03, 2021, 01:30:25 PM »
Maybe you are doing this already, but I would suggest that for now you only use the generic testing sound files, since we can be sure they in the correct format. You can download the Zip file here.
198
« on: February 25, 2021, 07:45:17 PM »
From your description it would seem the Sound Card is able to read the SD card (since there is no rapid blinking on the red LED), and it is receiving the correct commands from the TCB (based on the behavior of the blue LED). If that is the case we can also assume it is playing the sounds (or trying to). Since you do not hear them, the most likely problem in my opinion is somewhere in the amplifier circuit. That is my best guess.
199
« on: February 15, 2021, 08:15:05 PM »
Hi Paul, the drawing you posted of the LED polarity is wrong, it is the opposite of what you have drawn. However the drawing doesn't matter, what matters is what exists on your physical board. I can see from the picture you posted earlier that your red LED is soldered correctly (assuming it is the same part number). The blue LED might be soldered correctly but I just can't tell from the picture. As I said before, the green dots on the blue LED need to be facing up towards the white bar. From the most recent picture you have posted I can see that your Teensy is getting power, so again we can confirm that your voltage regulator is working. But I do not see a connection to the TCB? If you are going to control the Sound Card with a standard hobby receiver, then you need to create a configuration file using the INI Creator Utility. After you create the INI file, you must put a copy of it on the SD card. Also make sure that your hobby receiver has power from some other source (typically it would be an ESC). This is because, as mentioned before, the Sound Card does not provide 5 volts to the receiver inputs.
200
« on: February 10, 2021, 10:20:04 PM »
Hi Paul - thanks for the picture. I can see the board was hand-soldered. Components C1, R10 and R13 look particularly bad, you might check those first, or re-solder them. The bigger concern is whether the amplifier chip is soldered well, the legs mostly look ok, but there is a pad underneath the chip which of course we can not see. If the pad is not making good contact you will get no sound.
I know of no good way to hand solder the amplifier, it really should be re-flowed. So if you only soldered the legs, it is not going to work.
It is normal to measure 0 volts on the RC Inputs - since they are for inputs, we do not provide 5 volts to them because that could interfere with whatever the input device is (RC receiver). So that is not an error. I believe you are going to use this with the TCB in which case you can ignore the RC Inputs.
You did measure 5 volts on the servo output and that is what we would expect. So at the very least it seems that the 5 volt regulator on your board is working correctly.
I can't see clearly, but you might want to check that the Blue LED is installed in the correct orientation. There are some green dots on one side of the Blue LED, these should face towards the white bar drawn on the board (in other words, the green dots should face away from the Red LED). I can see the Red LED is installed correctly.
If your 5 volt regulator is working correctly, the Teensy is getting power. You can attach a USB cable to the Teensy and plug it into your computer, and open a Snoop connection in OP Config. When you apply power to the Sound Card, are any messages printed to the Snoop console? Do any of the LEDs turn on?
201
« on: February 06, 2021, 08:07:13 PM »
Hi Paul, if you are not getting voltage anywhere, and the blue LED is not lighting up, then something basic is missing. Yes, I would try to examine the board closely to see if any components are not soldered correctly. Maybe you can take a picture of your board with the connections to the TCB, perhaps we will see something.
202
« on: February 04, 2021, 12:45:48 PM »
Hi Michiel, I think that right now this would not be possible. We do have a "Brakes Applied" trigger but it operates in a discrete manner (either yes or no, it is not a variable amount), so presently it can't be assigned directly to a servo output function. And anyway, by the time the "Brakes Applied" trigger occurs the TCB is already braking the motors, and it sounds like you want the brakes to be independent of the throttle.
If you don't mind your servo brakes being manually controlled, you can simply assign them to a free channel, and activate them manually by a switch or slider on your transmitter (I think a pistol grip transmitter is not going to be a good choice for this). In this scenario, yes you can attach the brake servo to the receiver directly, bypassing the TCB completely; or you can use one of the RC Output passthrough functions on the TCB (in the event your receiver doesn't have PWM outputs, only iBus or SBus or whatever).
But even manual control of brakes on a different channel is probably not what you want, you want them to be applied automatically when the throttle is reversed. That I am not sure how to accomplish even with a programmable radio (I guess it would be easy if you only want brakes applied when moving forward, and don't care about brakes in reverse).
Of course anything is possible in firmware but I don't think anyone else will use this feature so I am not motivated to make any changes. Even 1/6 scale Armortek models weighing hundreds of pounds don't use physical brakes (of course they don't move very fast either).
203
« on: February 01, 2021, 01:51:53 PM »
Hi Paul - the test routine simply lets you play all the sounds on the SD card in a loop without being connected to the TCB or a receiver. It can be used to verify the sounds are working, but it is not necessary to use this mode. You can also just test the sounds by running your model.
204
« on: January 20, 2021, 04:43:57 PM »
Hi Paul, glad you are making progress. Yes, copy the sound files to the SD card.
You do NOT need to use INI Creator when you are using the Sound Card with the TCB control board. Just configure your settings using OP Config and write those settings to the TCB, then the TCB will communicate everything to the Sound Card.
INI Creator is only necessary when you are using the Sound Card all by itself with a standard hobby radio receiver (no TCB).
205
« on: January 12, 2021, 07:53:44 PM »
Did you put the sound card firmware on the Teensy? You don't need the sound card board to do that, you can just plug any Teensy 3.2 into the computer and flash the firmware using OP Config.
Do that first, and if the firmware is loaded successfully than you can try to troubleshoot your sound board.
206
« on: January 03, 2021, 08:07:22 PM »
Crowdfunding has not been tried but I did consider it at one point. There are a few issues in addition to finding the 250 people. One is that someone needs to package and then make 250 trips to the post office to ship all the boards, which is something I didn't want to do. Your other suggestion of having people donate a small amount is something I considered as well, but what would those people get for their $15? Nothing, so really the minimum "donation" would need to be whatever the price of the final board would be.
However if someone wants to take this on themselves I do not mind!
207
« on: January 01, 2021, 04:03:55 PM »
It's been a while since I've obtained quotes but they were usually in the range of $50-$75 USD per board for order quantities starting at 250 units. That is a very reasonable per-unit price, but of course most people don't need 250 units and when you multiply it out that is a lot of money to put down...
208
« on: December 28, 2020, 05:06:06 PM »
I am glad it is working for you now!
209
« on: December 21, 2020, 06:07:02 PM »
Hi Wolfgang, it sounds like you're still having difficulty getting through Radio Setup. I know that English is not your native language, but do you know that Google can easily translate web pages into German? Just open any page in the Chrome web browser, right click anywhere on the page and select "Translate to German." All the information you want is in the Wiki and if you can read it I think it will answer a lot of your questions.
I would like to help you more but so far you have not described exactly what your problem is. You need to give us more information before we can assist you. Describe exactly what you are trying to do, what parts of the process work and at what point it does not work.
I should also say that the TCB board is really designed for advanced users who like to tinker and experiment and who are comfortable with using setup programs on the computer. It may be that you would be happier and have more success with a different product like Taigen or one of the newer Heng Long boards. They have most of the functions you need and do not require any software setup.
210
« on: December 21, 2020, 01:29:48 AM »
I'm glad it works! And don't worry, I have had many head-scratching moments myself when I forgot to check that very switch.
Using one of the external inputs to enable/disable airsoft is a perfectly good use. Just wanted to make sure you knew what you were doing but I see you do! Sometimes you don't need to control something from the transmitter, just a little switch somewhere on the model is fine, and that is exactly the sort of thing those inputs were designed for.
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