EDTracker Bundle (HCKITS0021, 21B, 21E, 21F, 21G, 21H & 21I)

EDracker products
andrew
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Re: EDTracker Bundle (HCKITS0021, 21B, 21E, 21F, 21G, 21H & 21I)

Post by andrew » Mon Dec 20, 2021 8:27 am

I'm beginning to think I have a bad MPU9250 unit, or that I inadvertently damaged it somehow.
It's possible but as it's doing something when you run the test sketch that leads me to think something else is going on. If you have a magnifying glass take a look at the soldering on the pads for the actual ATMega32U4 and MPU9250 ICs on the Pro Micro and sensor module. Have a look for any of the pins missing solder.

One other option I can suggest is to send it to us and I'll take a look at it myself.
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lsandini
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Re: EDTracker Bundle (HCKITS0021, 21B, 21E, 21F, 21G, 21H & 21I)

Post by lsandini » Thu Jan 06, 2022 1:13 pm

Hello,

Kind same problem here. Just got my bundle, assembled it and I think I did everything correctly. Not exactly a beginner at soldering and rather experienced with Arduino / Edison stuff.

The Arduino shows up in my device managed and in the EDTrackerUI 4.0.4.0 app, but not the attached magnetometer. I can click "CONNECT TO TRACKER" and is says "connected", but no temperature or axis data is received.

Ideas ? I'll check all the soldering again, but is there anything else I should try first ? :shock:

Lorenzo

Image

andrew
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Re: EDTracker Bundle (HCKITS0021, 21B, 21E, 21F, 21G, 21H & 21I)

Post by andrew » Thu Jan 06, 2022 3:31 pm

Not exactly a beginner at soldering and rather experienced with Arduino / Edison stuff.

From what I can see your soldering looks good. If you're familiar with Arduino and have it installed on your computer you can try seeing if you can read the magnetometer via the Arduino IDE's serial monitor window. To do this shut down the EDTracker GUI if you still have it open and then open up the Arduino IDE. Under the 'Tools' menu set the COM port to whatever the EDTracker is using. Then open a serial monitor window and set its baudrate to 115200. You should then be able to read the magnetometer by sending a capital 'I' to the EDTracker. The EDTracker should then return a magnetometer reading.


If this doesn't work and you don't mind having a go at reprogramming the Pro Micro you could try the MPU9250 test sketch. This will at least determine if the Pro Micro is talking to the MPU9250. If you want to give it a try you'll first need to add support for the EDTracker to your Arduino IDE. To do this follow steps 1 to 5 in the following post:

viewtopic.php?p=7990#p7990

When you've added board support you can try the MPU9250 test sketch found in the first post in the MPU9250 product thread here:

viewtopic.php?f=73&t=1956

When uploaded, the sketch will output the state from all the MPU9250 sensors to the Arduino IDEs monitor window (note the sketch uses a baud rate of 9600). See if the values change when you move the EDtracker.
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lsandini
Posts: 2
Joined: Thu Jan 06, 2022 12:53 pm

Re: EDTracker Bundle (HCKITS0021, 21B, 21E, 21F, 21G, 21H & 21I)

Post by lsandini » Thu Jan 06, 2022 4:50 pm

I recompiled the sketch from https://github.com/brumster/EDTracker2/ ... 2_9250.ino and all is fine now :) Calibrated and working.

Thanks for the quick response !

Lorenzo

Chris247
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Re: EDTracker Bundle (HCKITS0021, 21B, 21E, 21F, 21G, 21H & 21I)

Post by Chris247 » Wed Jan 19, 2022 7:04 pm

Just finished building my bundle but getting the same issue as lorenzo it shows up as the joystick and i can see the com port but the gui doesnt show any data like temperature. I tried doing the arduino upload thing but it keeps failing. I see a bunch f red lines at the bottom and then fails with

avrdude: verification error, first mismatch at byte 0x1e80
0xff != 0x6c
avrdude: verification error; content mismatch

andrew
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Re: EDTracker Bundle (HCKITS0021, 21B, 21E, 21F, 21G, 21H & 21I)

Post by andrew » Thu Jan 20, 2022 11:14 am

avrdude: verification error, first mismatch at byte 0x1e80
0xff != 0x6c
avrdude: verification error; content mismatch

Odd, in all the years of dealing with Arduinos I've never seen this error message reported before. As it's reading back an 0xFF that could simply mean that it is failing to read anything back at all. My first guess is that it's being caused by a physical connection issue. If you have a spare microUSB cable could you give that a try in case it’s a bad cable. Also make sure that the USB connector is going all the way into the USB socket. They can be quite tight and sometimes will make a click even though they haven't gone all the way in.

Failing this can you confirm that you have followed the exact steps listed in the following post:

viewtopic.php?p=7990#p7990
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Chris247
Posts: 3
Joined: Fri Dec 17, 2021 11:01 am

Re: EDTracker Bundle (HCKITS0021, 21B, 21E, 21F, 21G, 21H & 21I)

Post by Chris247 » Mon Jan 24, 2022 8:43 am

andrew wrote:
Thu Jan 20, 2022 11:14 am
avrdude: verification error, first mismatch at byte 0x1e80
0xff != 0x6c
avrdude: verification error; content mismatch

Odd, in all the years of dealing with Arduinos I've never seen this error message reported before. As it's reading back an 0xFF that could simply mean that it is failing to read anything back at all. My first guess is that it's being caused by a physical connection issue. If you have a spare microUSB cable could you give that a try in case it’s a bad cable. Also make sure that the USB connector is going all the way into the USB socket. They can be quite tight and sometimes will make a click even though they haven't gone all the way in.

Failing this can you confirm that you have followed the exact steps listed in the following post:

viewtopic.php?p=7990#p7990
Tried 3 different cables on 2 different computers on various usb ports and got the same error message every time.

andrew
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Re: EDTracker Bundle (HCKITS0021, 21B, 21E, 21F, 21G, 21H & 21I)

Post by andrew » Mon Jan 24, 2022 9:32 am

Ok thanks for checking. Can I just confirm that you followed the steps in this post:

viewtopic.php?p=7990#p7990


Could you also give the soldering of the VCC and GND pins on the Pro Micro a double check.

Failing that we'll have to assume a problem with the Pro Micro.
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Chris247
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Joined: Fri Dec 17, 2021 11:01 am

Re: EDTracker Bundle (HCKITS0021, 21B, 21E, 21F, 21G, 21H & 21I)

Post by Chris247 » Thu Feb 03, 2022 5:25 am

andrew wrote:
Mon Jan 24, 2022 9:32 am
Ok thanks for checking. Can I just confirm that you followed the steps in this post:

viewtopic.php?p=7990#p7990


Could you also give the soldering of the VCC and GND pins on the Pro Micro a double check.

Failing that we'll have to assume a problem with the Pro Micro.
Yes followed those steps exactly also reflowed all solder points on the Pro Micro and still made no difference. If I somehow manage to desolder the pro micro from the other pcb is there any way to test the pro micro by itself to see if that's the problem?

andrew
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Re: EDTracker Bundle (HCKITS0021, 21B, 21E, 21F, 21G, 21H & 21I)

Post by andrew » Thu Feb 03, 2022 11:25 am

Yes followed those steps exactly also reflowed all solder points on the Pro Micro and still made no difference. If I somehow manage to desolder the pro micro from the other pcb is there any way to test the pro micro by itself to see if that's the problem?

Yes, it will be tricky to desolder it without damaging it but you could just simply try flashing the EDTracker firmware again or you could even use the Arduino IDE to flash the standard blink sketch to see if the LED on the Pro Micro blinks.

Edit: I should point out that if at any point you would like to send it back to us instead I'd be happy to take a look at it.
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