I have a project that I am ramping up for production (10,000+ units).
I have a question on best practices in how to integrate BLE into the project.
I have prototyped on a HM-11 BLE device, which is a module that communicates with arduino through UART. It is based on CC2541, a bluetooth IC.
I am now questioning the feasibility of that in production. Do people actually mass source the HM-11 and place them directly into their production PCBs? Are there downsides to that? Other than, obviously, cost?
The alternative would be to use the CC2541 directly. My question is twofold; first--how to prototype with that chip? I would be talking to that chip directly, and I imagine the interface would be different than that provided through the HM-11. Are there guides/general practices that are used to make the dev process feasible if that's the approach we're to take?
Second, how prohibitively difficult is it to design a PCB which integrates a CC2541. Are there special considerations that I should be aware of?
Would love any answers and feedback from the smart minds in this forum. Thank you.