OK but this is a Bluetooth board which I would have to connect to a set of two or three relays just the same isn’t it? What I was wondering is if there was some sort of relay with each bridge board which are usually commonly used to control in your actuators in such a way that you don’t use so many relays as somebody in the above thread suggested.How about a bluetooth development board like https://www.sparkfun.com/products/15025 and one of the many of relay boards online designed for a PI? Look for bluetooth development board online and you'll find a few more options. It would end up being a matter of connecting wires between the development board and the relay board.
I'll try to measure the current today