LED placement on Bluetooth TX & RX pins in nRF51822

[SaadInam]

I want to know which pins serve the purpose of TX and RX in nRF51822. I suspect its the ANT1 and ANT2 but i want to confirm and also if the following would be a good way to place status LEDs on the TX and RX lines

[awneil]

www.nordicsemi.com/.../nRF51822

Pin functions are described on p12 of the Product Specification (v3.1):

ANT1 RF Differential antenna connection (TX and RX).

ANT2 RF Differential antenna connection (TX and RX).

Note that these are the RF connections - you would not connect these to an MCU!

Presumably, your diagram is intended to indicate a UART connection to the MCU ... ?

[SaadInam]

when would i use ANT1 or ANT2 ? And does this mean that TX and RX are on the same line so i have to place only when status LED?

[awneil]

As quoted above, these are the antenna connection points.

Have you looked at the product specification?

Or the reference designs: www.nordicsemi.com/.../nRF51822

Or the schematics of the Dev Kits, Dongles, etc: www.nordicsemi.com/.../nRF51822

[SaadInam]

can you tell me what will happen to the TX and RX for this case? And what is the need of ANT1 and ANT2? I saw the product specification but couldn't understand

[awneil]

Again, ANT1 and ANT2 are the radio antenna - or "aerial" - connection points; so this is where the RF energy is transmitted and received.

It is way beyond the scope of a forum post to describe how radio transmission works!