LowPowerLab Forum

Software support => Wireless Programming (aka OTA) => Topic started by: j45p41 on December 16, 2020, 07:40:41 PM

Title: New user questions
Post by: j45p41 on December 16, 2020, 07:40:41 PM

Hi,

really excited to find these boards but I would like to clarify a couple of things that I cant find by searching:

1. I am able to order the LoRa RFM95 version from the shop. However, I cant seem to find if there are any lmitations using this radio. Significantly, can I program over wireless.

2. Is it possible for the server used for programming be an esp32 which picks up files from its spiffs filesystem and then uploads to moteino?


Thank you!

Title: Re: New user questions
Post by: Felix on December 16, 2020, 08:09:53 PM

All Moteinos come with the Dualoptiboot bootloader. That means that if you find a way to transfer a new compiled HEX firmware into the external 4MBIT flash, Dualoptiboot will pick that up and replace the main firmware with it upon a reboot.
The RFM69 library has some extensions that provide that functionality with RFM69 transceivers.
But I have never created or maintained a library for RFM95/96 transceivers, I just offered them with Moteinos.
In the other thread you posted, I mentioned that if you came up with a way to make that HEX transfer then the built in Dualoptiboot bootloader would handle the rest, on all current Moteinos including the SAMD based M0.

Title: Re: New user questions
Post by: j45p41 on December 17, 2020, 06:44:21 PM

Well thank you very much for the clarification. I am sensing that the rfm69 is a good choice for transmission within buildings. This is my use case where some units may be in outbuildings but not more than 500m. So I am going to build my prototype with pads for both radios.

Incidentally, I have searched, are your pcb antenna used in the moteinos publically available? If not how would I go about getting predesigned antenna as component for my easyeda project?

Title: Re: New user questions
Post by: Felix on December 18, 2020, 12:36:52 PM

RFM69HCW and RFM95/96 are actually pad compatible.

Quote from: j45p41 on December 17, 2020, 06:44:21 PM

Incidentally, I have searched, are your pcb antenna used in the moteinos publically available?
If not how would I go about getting predesigned antenna as component for my easyeda project?

No, and I don't have any advice on that, PCB trace antenna design is not trivial.

Title: Re: New user questions
Post by: j45p41 on December 18, 2020, 05:14:01 PM

Haha thanks. Not surprised at your answer  :)