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how to connect 4 Slaves to One Master using BLE

Hi,

I am working on a project where I have 4 sensors. Each sensor transmits(slave & Peripheral) its value using BLE to the Receiver (Central & master) which is also BLE. I am new to the Bluetooth low energy and understand that BLE works very low power however I think BLE only works one to one connection. Wondering if it is possible to have 4 peripheral connected to one central at one time. if so are there any examples. Each slave is trying to send 32bits value of sensor every 250ms. Please help.

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