Need help w/ultimate GPS + ESP32V2 feather

Please tell us which board you are using.
For CircuitPython issues, ask in the Adafruit CircuitPython forum.

Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.
User avatar
SeniorHam
 
Posts: 20
Joined: Wed Dec 01, 2021 6:16 pm

Need help w/ultimate GPS + ESP32V2 feather

Post by SeniorHam »

I have an Ultimate GPS featherwing and a HUZZAH 32 feather V2 and have loaded the sketch on pages 11 and 12 of the HPS 35 page Adafruit description.

The sketch compiles and loads into the ESP32V2, but the serial output is not at all like described in the Adafruit document.

The reset button on the GPS works and the output is readable, but I don't understand what it is trying to tell me. The are eight lines of output and nothing until RESET is applied. Then it repeats those same lines.

Also, I can't seem to copy the serial output and paste, so I have made a screen copy that shows the serial output.

Any help will be appreciated.
GPSproblem_2022-09-15-174620_812x223_scrot.png
GPSproblem_2022-09-15-174620_812x223_scrot.png (28.33 KiB) Viewed 142 times

User avatar
Franklin97355
 
Posts: 23903
Joined: Mon Apr 21, 2008 2:33 pm

Re: Need help w/ultimate GPS + ESP32V2 feather

Post by Franklin97355 »

Can you post a link to the article you are referencing and any connection you have made?

User avatar
SeniorHam
 
Posts: 20
Joined: Wed Dec 01, 2021 6:16 pm

Re: Need help w/ultimate GPS + ESP32V2 feather

Post by SeniorHam »

The document was downloaded as the .pdf file listed in the web page at this link: https://learn.adafruit.com/adafruit-ult ... eatherwing

User avatar
SeniorHam
 
Posts: 20
Joined: Wed Dec 01, 2021 6:16 pm

Re: Need help w/ultimate GPS + ESP32V2 feather

Post by SeniorHam »

I found this direct link which doesn't require dowloading the entire .pdf: https://learn.adafruit.com/adafruit-ult ... rx-tx-test

User avatar
adafruit2
 
Posts: 22111
Joined: Fri Mar 11, 2005 7:36 pm

Re: Need help w/ultimate GPS + ESP32V2 feather

Post by adafruit2 »

can you post a photo showing your wiring/soldering? is the red LED on the GPS wing on/blinking?

User avatar
SeniorHam
 
Posts: 20
Joined: Wed Dec 01, 2021 6:16 pm

Re: Need help w/ultimate GPS + ESP32V2 feather

Post by SeniorHam »

The red LED does blink on and off continually.

User avatar
adafruit2
 
Posts: 22111
Joined: Fri Mar 11, 2005 7:36 pm

Re: Need help w/ultimate GPS + ESP32V2 feather

Post by adafruit2 »

can you use a photo sharing site or crop or shrink the photo somehow? its very very helpful to see whats up :)

User avatar
SeniorHam
 
Posts: 20
Joined: Wed Dec 01, 2021 6:16 pm

Re: Need help w/ultimate GPS + ESP32V2 feather

Post by SeniorHam »

Made a .zip file of the photo, but I cannot figure out how to send that file. Anyhow, the all the pins along the two long edges of both boards connect via stacking headers. Nothing else is connected except the USB connector.

User avatar
SeniorHam
 
Posts: 20
Joined: Wed Dec 01, 2021 6:16 pm

Re: Need help w/ultimate GPS + ESP32V2 feather

Post by SeniorHam »

InOpUltimateGPS.JPG
InOpUltimateGPS.JPG (35.8 KiB) Viewed 115 times

User avatar
SeniorHam
 
Posts: 20
Joined: Wed Dec 01, 2021 6:16 pm

Re: Need help w/ultimate GPS + ESP32V2 feather

Post by SeniorHam »

The picture uploaded yesterday looked OK for a while and now it doesn't.
Can someone assure me the boards I am using are pin-to-pin compatible color AND that all pins in the outer rows of the two longest sides can all be connected together without causing any problem?

https://www.adafruit.com/product/5438#tutorials
https://www.adafruit.com/product/3133#tutorials

Could I have ordered the wrong items?

User avatar
Franklin97355
 
Posts: 23903
Joined: Mon Apr 21, 2008 2:33 pm

Re: Need help w/ultimate GPS + ESP32V2 feather

Post by Franklin97355 »

Can you post a picture of the bottom side of the gps board? The pins might be backwards

User avatar
SeniorHam
 
Posts: 20
Joined: Wed Dec 01, 2021 6:16 pm

Re: Need help w/ultimate GPS + ESP32V2 feather

Post by SeniorHam »

Here is a picture of the back of both boards.
Attachments
BackOfBoards.JPG
BackOfBoards.JPG (158.66 KiB) Viewed 87 times

User avatar
Franklin97355
 
Posts: 23903
Joined: Mon Apr 21, 2008 2:33 pm

Re: Need help w/ultimate GPS + ESP32V2 feather

Post by Franklin97355 »

Thank you. The original picture is a bit blurry but can you reflow the solders? They look like several might not be flowing to the pad. I retouched your picture to make it easier for me to see.
InOpUltimateGPS-topaz-enhance-iC-x.jpg
InOpUltimateGPS-topaz-enhance-iC-x.jpg (678.35 KiB) Viewed 83 times

User avatar
SeniorHam
 
Posts: 20
Joined: Wed Dec 01, 2021 6:16 pm

Re: Need help w/ultimate GPS + ESP32V2 feather

Post by SeniorHam »

I have examined my soldering carefully under magnification. I'll take some pictures of it when I borrow the camera again. However, meanwhile, I DO have faith in my soldering.

Without knowing for certain, it seems as if the GPS module is not communicating with the ESP32 unit (at least the LED on the GPS card is blinking). Also, I found the serial output as shown by Adurino is exactly the same as when the GPS card is not used.

The GPS schematic is hard to read. It is not in the form I am used to studying. The plug does connect the GPS circuit board serial RX and TX to the GPS board TX and RX pins. The outputs of the GPS chip shown on the schematic seem to go to a connector J3. It is unclear from the schematic that they connect to the RX and TX pins mating with the ESP32 card.

I am hesitant to bug the continuity from the GPS chip to the RX and TX connections, but perhaps that is the only thing left to do?

User avatar
SeniorHam
 
Posts: 20
Joined: Wed Dec 01, 2021 6:16 pm

Re: Need help w/ultimate GPS + ESP32V2 feather

Post by SeniorHam »

Photo of the top side of the boards.
Attachments
TopOfBoards.JPG
TopOfBoards.JPG (121.5 KiB) Viewed 78 times

Locked
Please be positive and constructive with your questions and comments.

Return to “Feather - Adafruit's lightweight platform”