(tr)uSDX Forum

Fake chips give back a serial number of 58FFDFFFDFFFFFFFFF. I replaced a blown one with one from the Arduino Uno R3 clone and got that serial number that others had as well from some purchases of the web from china. The chip worked but the performance might not be as good as the genuine atmels. Ther...

Here is my 1.29" display install with the 8V mod (I only had a large 8V regulator on hand). I installed the display with flexible wires from a ribbon cable so that I could locate it offset from the existing 4 pin holes to keep the speaker ring intact. I then secured the display, close to the ma...

Those cloned 328P chips may be blocked from uploading any future firmware updates. Manuel said he was blocking those clone chip addresses from downloading the firmware because of that Chinese supplier selling the unauthorized Nanorig versions of TruSDX. I'm in your position too because I replaced on...

Yes, those solder pad jumpers are correct. J2 and J3 to route GND (Square pad} on Pin 1 and VCC on pin 2. How do you post pictures here if they aren't on a web already? I posted pics on Facebook https://www.facebook.com/groups/trusdx/permalink/694678242059689/ This is a properly configured display: ...

On mine, it was only the display.

I kind of figured this may be a problem that only a message from Up Tech to their customers ASAP can prevent. Damn hard to unsolder the display unless you have a wide tip or lots of solder over all four pins. At least you can see that you have a display problem because the silkscreen labeling of the...

Check to see if this is the problem:

viewtopic.php?t=758

Was this a recent kit?

If so, check to see if the display is the problem.

read this post.

viewtopic.php?t=758

ALERT I recently just received the Classic kit from Up Tech Store and completed the kit. The display didn't work. I found the fault - the OLED display is labeled and jumpered for VCC on pin 1 (square pad) and GND on pin 2. The proper display should be labeled with GND on pin 1 and VCC on pin 2. If ...

Just checking, did the display ever work? If not, check out my explanation in this thread:

viewtopic.php?t=741

If you look at the half sheet assembly instructions supplied, you'll notice the picture of the back of the display has J2 and J3 solder pad jumpers on it. The properly silkscreen labeled display for that would have GND on pin 1 and VCC on pin 2. The proper display to match the wiring on the main boa...

I also just received the Classic kit from them and my display didn't work either. I found the fault and told them today. The display provided is configured incorrectly in that pin 1 (square pad) needs to be ground and pin 2 is VCC. If you move the jumper solder pads to J2 and J3, it should work but ...

The USBASP that I got didn't want to work with AVRDUDE. I did load the USB Driver for it on my computer but the program didn't work with it. I didn't know there are different versions of USBASPs out there.

Well, this USBASP didn't work..... https://www.amazon.ca/gp/product/B07D81JYHV/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 Couldn't get it to work in AVRDUDE even under the USBASP clone selection. I now wired up an Arduino Nano which is a real one and was able to program the last main board...

The group buy organizer for my boards left it to the purchaser to load the boot loader into the 328P. Reading about the boot loader process at the Arduino site says a 10uF capacitor is required after the sketch is loaded: The Arduino MEGA above is programming an Arduino UNO connecting D51-D11, D50-D...

I'm now confused again. The cable I used to connect the Arduino Uno to the 6pin ISP connector on the TruSDX was a cable assembly I made using a properly crimped header and soldered onto a strip of pins that plugged into the socket of the Uno. They are not loose and I measured the continuity to make ...

I see someone else saw the discrepancy in the bootloader instructions previously but it was not addressed back then.

viewtopic.php?p=3973

The two USA Group buys led by WildMcQ in early 2022 were not preloaded and left to the kit assemblers to do. I thought the instructions were very clear and with Manuel's comments to follow them "word by word" were followed blindly because I have no bast experience programming these process...

Nope, still doesn't recognize the 328P. Used the -F to see if it would do anything but same results. In the instructions, it says: Then start AVR Dudess, and make the following Settings Programmer: Arduino Port: YOUR USB COM port MCU: ATMEGA328P or ATMEGA328PB (depending on the Chip on your Board) B...

I haven't had much experience working with programming or hands on building with micros even though I am an electrical engineer - graduated in 1985 well before this stuff and went into Public Safety radio communications systems engineering. Now that I am retired, I'm trying to catch up if my spouse'...

Is this the USBASB that you are referring too?

https://www.amazon.ca/gp/product/B07D81 ... UTF8&psc=1

I just ordered it so I hope that will work.

The Arduino Uno I have been using is the one with the ch340G on it with the soldered square MEGA328P on it. Could that be the problem? Here is the manual for it. https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=2ahUKEwjVkqHru-_7AhWrjok...

I have another Main board I got from another group buy but missing u6, u1, push buttons, rotary switch and display and I installed the ISP header to program the board. I got the same results as I did the first time with the USA Group 2 completed kit. I am really confused on what's happening and this...

Hello, I read most of the similar threads of failed load of Bootloader and I conclude my 328P chip is dead. Just want to confirm what I see. First attempt, I got the verification error on the first byte so I tried again and got the yikes! Invalid device signature. Tried again - same thing. Then did ...

Is C44 in the 60m filter supposed to be 220p instead of 470p? Original schematic has it as 220p.