I have bought a RAK5205 module a few months ago. I have recently tried to use it but find that the GPS is not working. This can be seen in the following copy of the RAK serial port tool:
OK Start Search Satellite(about 300 seconds) … FAIL.The Satellite signal not found!
*Battery Voltage = 4.193 V * BME680 sensor data:
[LoRa]: send out [LoRa]: RUI_MCPS_UNCONFIRMED send success OK
I have configured the GPS with the following instruction to avoid sleep mode:
at + set_config = lora: send_interval: 2: 60
On the other hand, reviewing the schematic diagram I find that some components are apparently not installed, for example: C52, L2
You can also see the poor technique of the soldering of the antenna connectors!
Thank you.
What about this:
…On the other hand, reviewing the schematic diagram I find that some components are apparently not installed, for example: C52, L2
I have left the module for a long time, with the GPS antenna connected and placed outside, however I cannot get the module to get GPS data.
Of course not, but I am going to re-solder the antenna connectors, I can assure you that I will do a better job!
By the way, don’t you tell me anything about the connectors I mentioned that could be missing?
I see that the diagram shows nothing connected in C58! but there is a component! Is it possible that the factory put the L2 in the wrong place? (small red picture box)
Can you send me the bar code on this board？
We will Inquiry it！
By the way，It is not welded in the wrong position, if there is no inductance, GPS will have no point quantity, which may be the problem.
Dear @fboesche，
Yes！
But I just checked the test log. The GPS of this board is the normal test before the factory, so I can send you the test log.
Maybe you can check the GPS with the command:at+get_config=device:status
Nicholas, I don’t have to enter into contradictions with you, much less lie to you. Definitely the factory sent me a faulty board (without the L2 component installed!). I have installed an inductor that I found from another GPS module and now it works fine.
Being a new module, to be honest with you, I expected that RAKwireless, without objection, would take action to replace it, as appropriate. In the end I have made the module work and I will be able to do the tests for which I have bought it, but under the circumstances I will have to seriously consider if RAKwireless is one of my best options for future projects.
Thank you
I just want to find the problem and solved it.Beacuse we are in different country，It is very troublesome to returned to the factory repair the products .
I ask you to confirm whether the welding is just to find out the problem.This is probably where I made a mistake.
