Hi there, I am currently creating an RFID Card Reader and was looking around for a secure and reliable BLE 4.0 Bluetooth Module to communicate with an iPad, I am inclined to a module with Certification as this would turn out to be a commercial product, Would you have any recommendations
A maker favourite is this - lots of source code and easy to setup :
It is based on the nRF51822; which can streamline the process with RCM if you go down that route. Even with Nordic’s certification tests, it’s quite expensive from what I understand.