nRF52840 -- configuring 25+ of these modules to wirelessly transmit data to a central controller

RE: nRF52840 -- configuring 25+ of these modules to wirelessly transmit data to a central controller

Kenneth — Thu, 13 Jul 2023 08:07:13 GMT

I suggest to try out the BLE devacademy tutorial to get familiar with develping with BLE:
https://academy.nordicsemi.com/courses/bluetooth-low-energy-fundamentals/

Kenneth

RE: nRF52840 -- configuring 25+ of these modules to wirelessly transmit data to a central controller

swood — Mon, 10 Jul 2023 13:28:08 GMT

Also, what's the byte limit for BLE advertising, and how frequently can it be sent? What factors does it depend on?

RE: nRF52840 -- configuring 25+ of these modules to wirelessly transmit data to a central controller

swood — Mon, 10 Jul 2023 13:17:46 GMT

Thank you for your response! How would I configure the nRF52840 to advertise?

RE: nRF52840 -- configuring 25+ of these modules to wirelessly transmit data to a central controller

Kazi Afroza Sultana — Fri, 07 Jul 2023 17:02:53 GMT

Hello,

1. Can this module do that/is it the right choice? Data from the 25 nodes would be collected continuously and need to be synced.

You can use this nRF52840 module. The maximum concurrent is 20.

''To clarify, each sensing "node" would be a custom designed PCB with two sensing ICs and this module to transmit the data''

Maybe it's better that these nodes advertise the data instead. If advertising is not an option; then the central can connect to 1 node, exchange data, disconnect, and connect to the next node, repeat.

2) Is BLE the right platform (can it handle that many devices transmitting at once?), or should I look into RF modules or mesh? If yes to the second, let me know of any suggestions on that front.

Depending on how much data (in bytes), and how often the data need to be sent, then it might be to use BLE advertising.

Thanks.

Kazi