Max Slaves in star network with nrf51822?

[ethan schneider]

Hi,

I am trying to create a star network with 12-16 slaves and one master.

The master would be a nrf51822 and the slaves nRF8001/2.

The slaves would not transmit any data besides "I'm here".

Is this possible with these chips?

[David Edwin]

You can use the nRFgo studio power calculator to calcluate the power requirements. nRFgo Studio -> nRF8001 Configuration -> Current consumption. You can also use a transistor to cut off power completely to the nRF8001 when it is not in use so the sleep current can effectively be zero.