BLE chip choice to pair with nRF9151

RE: BLE chip choice to pair with nRF9151

Susheel Nuguru — Mon, 23 Jun 2025 07:02:07 GMT

Gerald,

If you’re really pressed for space and budget, and all you need is basic BLE, think simple beaconing, advertising or a phone connection, then, the nRF52805 is your best bet. It’s small, lean and does exactly what you need without any extras.

On the other hand, if you think you might want things like PWM, PDM or other peripherals down the road, the nRF52810 gives you a bit more room to grow. It’s slightly bigger and could cost a touch more, but you’ll have those extra interfaces at your disposal.

In short, both chips will work for a minimal BLE peripheral setup, but for the absolute smallest power- and cost-sensitive design, I’d go with the nRF52805. And yes, using UART between the nRF9151 and your BLE chip is perfectly fine and well supported.

RE: BLE chip choice to pair with nRF9151

gmassana — Thu, 19 Jun 2025 06:55:42 GMT

Hi Susheel,

Thank you for your quick reply and for reaching out to Roger.

I understand that pricing and availability are typically handled by the sales team. However, from a technical perspective, especially regarding power consumption and the minimal BLE functionality we require, I thought this forum would be a good place to ask for input from Nordic engineers or community members with experience using the nRF52805 vs nRF52810 in similar use cases.

Would it be okay to still ask for your opinion on which of these two chips might be better suited purely in terms of technical fit, assuming cost is handled separately?

Thanks,

RE: BLE chip choice to pair with nRF9151

Susheel Nuguru — Wed, 18 Jun 2025 19:59:31 GMT

Gerard,

This is probably not the right platform (forum) to ask these things. Usually the regional sales manager (Roger) in your area is equipped with the knowledge and information to aid you with the choices. I have dropped a message to Roger requesting to reach to you to be able to assist you.