PointPerfect example using WIFI/IP/MQTT

[mazgch]

Hi Nathan

This is a simple example demonstrating use of SSR corrections in SPARTN format from u-blox PointPerfect service. WiFi is used to connect to the server using MQTT protocol.

Recommended Hardware:
MicroMod GNSS Carrier Board: https://www.sparkfun.com/products/17722
ESP32 Micromod https://www.sparkfun.com/products/16781

Make sure the u-blox ZED-F9R GNSS receiver is running latest firmware (HPG 1.30)
https://www.u-blox.com/en/product/zed-f9p-module?lang=de#tab-documentation-resources

[PaulZC]

Thank you Michael,

We will give this a quick test and then merge it into the library.

Very best wishes,
Paul & Nathan

[PaulZC]

Hi Michael (@mazgch ),

This is a really nice example - thank you for submitting it.

I have it working, pushing PointPerfect SPARTN data to a ZED-F9R and I'm getting fixed carrier solutions very quickly.

I do see a small issue with the example. When I disconnect and then try to reconnect, I see error -2:

I think this is probably just an MqttClient or WiFiClientSecure stop then 'restart' sequencing issue? I will try and solve it - but I may have to pass it back to you.

Best wishes,
Paul

[mazgch]

I am not seeing your issue in my setup, maybe because I have a different account and PointPerfect plan. I have evolved a bit the current work on more examples. I will have some more PR to add support for NEO-D9S.

[PaulZC]

Hi Michael,

The issue I'm seeing - error -2 when reconnecting to PointPerfect - is board package and compiler dependent.

I'm running your example on a SparkFun ESP32 Thing Plus - not MicroMod ESP32.

If I use the "SparkFun ESP32 Boards v1.0.1" (xtensa-esp32-elf-gcc 1.22.0-97-gc752ad5-5.2.0) then reconnecting works perfectly. If you are using MicroMod ESP32 then I think this is the same board package and compiler you are using?

But if I use the "Espressif Systems esp32 v2.0.2" (xtensa-esp32-elf-gcc gcc8_4_0-esp-2021r2) then I get error -2 when I try to reconnect.

OK. I am not going to worry about this. But we may see issues raised by other users who run into the same problem.

I am working on improvements to the library to support the NEO-D9S and UBX-RXM-PMP. I should have an example for you to test tomorrow. My plan is to release a new version of the library - including your PointPerfect example - in the next few days.

Best wishes,
Paul

[mazgch]

Hi Paul, I have a Lband example partly working with few issues I need still to look at. You can have a look at the example 18 and the required code changes for NEO-D9S to you library in my github. I worked around the PMP message callback issues by using wire directly. Maybe some of the library changes can go into your new release. https://github.com/mazgch/SparkFun_u-blox_GNSS_Arduino_Library/tree/mazgch-band-pmp regards, Michael

…

Am 06.02.2022 um 19:42 schrieb Paul ***@***.***>:  Hi Michael, The issue I'm seeing - error -2 when reconnecting to PointPerfect - is board package and compiler dependent. I'm running your example on a SparkFun ESP32 Thing Plus - not MicroMod ESP32. If I use the "SparkFun ESP32 Boards v1.0.1" (xtensa-esp32-elf-gcc 1.22.0-97-gc752ad5-5.2.0) then reconnecting works perfectly. If you are using MicroMod ESP32 then I think this is the same board package and compiler you are using? But if I use the "Espressif Systems esp32 v2.0.2" (xtensa-esp32-elf-gcc gcc8_4_0-esp-2021r2) then I get error -2 when I try to reconnect. OK. I am not going to worry about this. But we may see issues raised by other users who run into the same problem. I am working on improvements to the library to support the NEO-D9S and UBX-RXM-PMP. I should have an example for you to test tomorrow. My plan is to release a new version of the library - including your PointPerfect example - in the next few days. Best wishes, Paul — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you were mentioned.