Hello, We have the following Problem to solve in general: A device should control the exhaust system in a vehicle. This device needs to retreive the engine RPM using a BLE - OBD Adapter (already available on the market). Approximately every 100ms over the Characteristic FFF1 (Notify, indicate) and FFF2 (Write) - OBD Adapter is a Peripheral with a Microchip BM77 Module inside.
Additionally the device needs to be remotely controlled by either a simple Remote Control (One button 4 LEDs - coin cell CR2032 battery handheld device) or an App running on Android or Apple.
The device has to be the central for the OBD connection - that is a fact. Is there a way to be a peripheral to the remote controlling devices (Button or App) as well? Would it be better our device is a central in all cases? We already have Development kits and everything for the nrF51, but there are too few examples for the Central role. Do you have examples for one central role connecting to more peripherals?
We have not done any Project with BLE, so I appreciate any hints how to start the whole concept.
