User Manual

BOTTOM VIEW

Above is the version with Transmit Power amplifier and Receive Preamplifier. Our low-

cost antenna is on the unit shown on the right. The same 8 pins connect to Arduino and

the same software is used.

Here's a link to a Home-Brew antenna design:

These transcevers use the 2.4 GHz unlicensed band like many WiFi routers, some

cordless phones etc.

Transceivers like these both send and receive data in 'packets' of several bytes at a

time. There is built-in error correction and resending, and it is possible to have one

unit communicate with up to 6 other similar units at the same time.

These amazing low-cost units have a lot of internal complexity but some talented

people have written Arduino libraries that make them easy to us. We have other pages

that show examples and point to the free software libraries you may need. They all use

the same pinout as shown in the following diagram, which is a TOP VIEW

(Correction!):

Here's details of the Pinout and connections to Arduino

(updated):

Signal RF Module COLOR Arduino pin for

RF24 Library

Arduino pin for

Mirf Library

GND 1 Brown GND GND

VCC 2 Red 3.3V 3.3V

CE 3 Orange 9 8

CSN 4 Yellow 10 7

SCK 5 Green 13 13

MOSI 6 Blue 11 11

MISO 7 Violet 12 12

IRQ 8 Gray 2 *

NOTE: Pin 8 IRQ is Unused by most software, but the

RF24 library has an example that utilizes it.

The COLOR is for optional color-coded flat cable such as THIS. We'll add some

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