FYI - GPS
Re: FYI - GPS
Hi,
Thanks to CU7AAZ and UB3AYH, I did modified my RT3S.
Before the fix took sooooo long, with poor reception. Now it get a fix in a breeze, and report 8 to 11 sats most of the time.
Cheers.
---
Daniel
Thanks to CU7AAZ and UB3AYH, I did modified my RT3S.
Before the fix took sooooo long, with poor reception. Now it get a fix in a breeze, and report 8 to 11 sats most of the time.
Cheers.
---
Daniel
Re: FYI - GPS
Hi, Daniel / F1RMB
Excellent job.
I'm very happy to have contributed something that is helping people.
I liked the detail, cut you made on the antenna pcb.
I'm working on another crazy project, heheheeh
Circuit information is missing... not easy to find RT3s schematic diagram
Basically, it consists of placing the module shown in the image in an RT3s without a GPS module. https://pt.aliexpress.com/item/40005520 ... pt=glo2bra
all the best Daniel
73s
CU7AAZ
Excellent job.
I'm very happy to have contributed something that is helping people.
I liked the detail, cut you made on the antenna pcb.
I'm working on another crazy project, heheheeh
Circuit information is missing... not easy to find RT3s schematic diagram
Basically, it consists of placing the module shown in the image in an RT3s without a GPS module. https://pt.aliexpress.com/item/40005520 ... pt=glo2bra
all the best Daniel
73s
CU7AAZ
Re: FYI - GPS
Hi,
Nice project !
Cheers.
---
Daniel
Nice project !
Cheers.
---
Daniel
Re: FYI - GPS
hi,
One more project. gps improvement
Unfortunately something is missing....
The Radio is not recognizing the module.
I don't know if something can be done in the firmware. ?
PCB connections, vcc+gnd+tx+rx+PPS (module)
pin1 + pin 5 + pin 9 from module chip to pcb.
If anyone has an idea, it's welcome
Link with some details
https://drive.google.com/drive/folders/ ... sp=sharing
73s!
Note - These tests are being done on a nonGPS RT3s
One more project. gps improvement
Unfortunately something is missing....
The Radio is not recognizing the module.
I don't know if something can be done in the firmware. ?
PCB connections, vcc+gnd+tx+rx+PPS (module)
pin1 + pin 5 + pin 9 from module chip to pcb.
If anyone has an idea, it's welcome
Link with some details
https://drive.google.com/drive/folders/ ... sp=sharing
73s!
Note - These tests are being done on a nonGPS RT3s
Last edited by CU7AAZ on Fri Aug 04, 2023 10:18 pm, edited 1 time in total.
Re: FYI - GPS
Connect the output pin of the module to a USB to Serial converter and look at the data.CU7AAZ wrote: ↑Fri Aug 04, 2023 10:08 pmhi,
One more project. gps improvement
Unfortunately something is missing....
The Radio is not recognizing the module.
I don't know if something can be done in the firmware. ?
PCB connections, vcc+gnd+tx+rx+PPS (module)
pin1 + pin 5 + pin 9 from module chip to pcb.
If anyone has an idea, it's welcome
Link with some details
https://drive.google.com/drive/folders/ ... sp=sharing
73s!
First check the Tx and Rx pins are correct and not swapped
The look at the data rate and also the data format.
The data has to be in standard NMEA format and not binary data
If you can receive data into your PC and have checked the baud rate, then post the data here so we can look to see if it seems compatible
Re: FYI - GPS
I think I have a way to connect the module to the PC, and I'll do what you suggest.VK3KYY wrote: ↑Fri Aug 04, 2023 10:18 pmConnect the output pin of the module to a USB to Serial converter and look at the data.CU7AAZ wrote: ↑Fri Aug 04, 2023 10:08 pmhi,
One more project. gps improvement
Unfortunately something is missing....
The Radio is not recognizing the module.
I don't know if something can be done in the firmware. ?
PCB connections, vcc+gnd+tx+rx+PPS (module)
pin1 + pin 5 + pin 9 from module chip to pcb.
If anyone has an idea, it's welcome
Link with some details
https://drive.google.com/drive/folders/ ... sp=sharing
73s!
First check the Tx and Rx pins are correct and not swapped
The look at the data rate and also the data format.
The data has to be in standard NMEA format and not binary data
If you can receive data into your PC and have checked the baud rate, then post the data here so we can look to see if it seems compatible
not today anymore, my battery is low
The module pin (RX) was connected to the TX on the PCB.
The module pin (TX) was connected to the RX of the PCB.
Thanks Friend Roger
73s
CU7AAZ
Re: FYI - GPS
Check the TX and Rx connections. It looks like you may have them swapped.
Re: FYI - GPS
That's good news.
To simplify the modification you could also remove the PPS and the RX connections. They are not used by the firmware. All you need is supply, ground and Tx data, just three wires.
Colin.
To simplify the modification you could also remove the PPS and the RX connections. They are not used by the firmware. All you need is supply, ground and Tx data, just three wires.
Colin.
Re: FYI - GPS
Hi to all
GPS mod 2
https://drive.google.com/file/d/1VrMJm0 ... sp=sharing
Video ( inside Home )
https://drive.google.com/file/d/18M8tmB ... sp=sharing
73s
CU7AAZ
GPS mod 2
https://drive.google.com/file/d/1VrMJm0 ... sp=sharing
Video ( inside Home )
https://drive.google.com/file/d/18M8tmB ... sp=sharing
73s
CU7AAZ