Configuring nRF52805M, BC805M Module

[Rsocor01]

Hi,

I'm trying to replace the old HC-05 BT module from one of my products by the BC805M module (nRF52805M). I just need the module to connect to the cellphone or PC to send 32 bytes packages. I don't need any advertising or scanning. I only need to send 32 bytes of data every 100mS or so. I'm using the following commands,

at+name=MyProduct/r/n

at+datamode=120/r/n       ,No need for a length byte, 20 = 32 bytes.

at+save=1/r/n

Then, I pull the P004, COMMD, pin from high to low to enter data mode.

The module is taking these commands without errors and it's getting connected to a PC we use for testing. I'm struggling making this work. I believe the BC805M is working in advertising mode, which I don't need. I'm not sure if I need to use the configuration commands at+adstart and at+scanner. We just need a simple go through data transmitter like the HC-05. Any help will be appreciated since I'm pulling my hair out trying to make this work.

Thanks,

Robert

[Øyvind]

Hello Robert, 

We do not have any AT commands support for our BLE devices. Fanstel do deliver their modules with preloaded firmware that support AT commands. From their web page: 

Modules are loaded with production test codes to

• enable Bluetooth transmitter for power measurement.

• set each GPIO pin to high/low for continuity measurement.

Production test codes are not erased when modules are shipped from factory.

In order to get started with your own Bluetooth LE development, please see our nRF Connect SDK documentation.

Kind regards,
Øyvind

[Rsocor01]

The module BC805M is advertised as a BT module ready to be implemented in any design and it is not. It doesn't make any sense for us to start learning how to program this module. We will pick another module that is already programmed for the average developer.

[Øyvind]

I'm sorry to hear that. The module is designed by Fanstel and they have implemented their custom FW for easy implementation on our nRF52805. Perhaps our Developer Academy can be of interest, where we have a Bluetooth Low Energy Fundamentals course. We have several bluetooth samples that can assist in your development.

Kind regards,
Øyvind

[Rsocor01]

A developer like me needs a module with a set of commands that is ready to be implemented in a new or existing design. There are other BT modules that in 30 minutes of reading the datasheet and commands description the developer can easily integrate the module into the desired application. I believe that your modules should come with an easy ready to go firmware and give the option to developers to further change the firmware to their own needs. As for me, I don't have the time to spend 10 hours in your Developer Academy since we have already implemented another BT module in our design that was easy and ready to go.