How about S112/pca10040 for nRF52DK

[yf13]

Hi,

I am considering to use nRF52832 to build a battery powered data collection device which can stream the data to nearby (within a few meters) Android devices via BLE with no more than 30KB/s throughput.

I got a nRF52DK device and downloaded the SDK v16.0.0. At high level, it seems that we have options on the type of soft devices. I am wondering if S112 device is all I need since in my case only one central device will be involved. However, when I checked the "examples/ble_peripheral/ble_app_template", I can only see s132 device listed under "pca10040/" folder. Does this mean that s112 is not a good choice for nRF52832?

regards,

yf13

[Øyvind]

Hello, 

The S112 is a smaller (flash size) SoftDevice with fewer connections and directed more towards nRF52810 (PCA10040e) and nRF52811. It is, however, possible to use S112 with nRF52832, but since this device has a bigger flash you will need to adjust the ram and flash size in your project.

Still, for your application with the requirement of 30KB/s (240kbps) throughput, I would recommend S132 using Data Length Extension. See Throughput for S132 vs Throughput for S112

Kind regards,
Øyvind

[yf13]

Thank you for the suggestions! 30KB/s is an extreme requirement, a basic variation can accept 10KB/s. From this regard, it looks that s112's "send notification throughput" (which is 190kbps over 1M phy) is enough. 

Do you know if s112/pca10040 consumes less power than s132/pca10040? To give s112/pca10040 a try, is there a template for pca10040 and SDK16 to start with? 

Regards,

yf13

[Øyvind]

The UART/Serial Port Emulation over BLE (examples\ble_peripheral\ble_app_uart\pca10040\s112) includes S112, which can be a good place to start.

-Øyvind