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1. Introduction

Once you have soldered the headers your 
board is ready to be placed into the desired 
mikroBUS

 socket. Make sure to align the 

cut in the lower-right part of the board 
with the markings on the silkscreen at the 
mikroBUS

 socket. If all the pins are aligned 

correctly, push the board all the way 

into the socket.

3. Plugging the board in

2

3

2. Soldering the headers

1

4. Essential features

Turn the board upward again. Make sure 
to align the headers so that they are 
perpendicular to the board, then solder the 
pins carefully.

Turn the board upside down so that 
the bottom side is facing you upwards. 
Place shorter pins of the header into the 
appropriate soldering pads.

Before using your click

 board, make 

sure to solder 1x8 male headers to both 
left and right side of the board. Two 
1x8 male headers are included with the 
board in the package.

click

BOARD

www.mikroe.com

tRF click Manual

ver. 1.00

0 100000 025895

tRF Click

 is an add-on board in 

mikroBUS

 

form factor. It’s a compact and easy solution 
for adding 868MHz RF communication 
to your design. It features the Telit 

LE70-868

 - 868MHz transceiver module, 

an SMA connector for an antenna as well 
as two radio communication LEDs. tRF 
Click

 communicates with the target board 

microcontroller via 

mikroBUS

 UART (Rx, 

Tx), AN, RST, PWM and INT lines. The board 
is designed to use 3.3V power supply only.

 

A LED diode serves as a power indicator.

click

tRF

tRF Click

 with 

LE70-868

 IC  represents a 

868MHz RF transceiver module with an 
embedded stack that is easy to integrate 
and use in point-to-point or star network 
topologies. The board enables radio data 
rates from 4.8 to 57.6 kbps with maximum 
output power of 500mW and a range of 
over 4000 meters (maximum tested range) 
in open space. The board contains radio 
transmit (red) and receive (yellow) LEDs.

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