Microchip Technology DM182015-1 User Manual

Page of 42
Additional Tutorials
© 2011-2012 Microchip Technology Inc.
Preliminary
DS70654B-page 29
4.6
PING-PONG DEMO
This tutorial program is used for range testing and for measuring the Received Signal 
Strength Indication (RSSI). In the Ping-Pong demo, as the name indicates, one node 
transmits data while the other node receives data. After the transmission phase is com-
plete (10 packets) they switch their roles.
The following hardwares are required to run this tutorial:
• Two PIC18 Wireless Development Boards
• Two Radio Daughter Boards
• Two  LCD  Serial  Accessory Boards
• Four fresh AA batteries or Two 9V External Power Supply or two USB cables
Program both the PIC18 Wireless Development boards with the 
Ping-Pong Demo.hex
 
file from  the 
8-bit Wireless Development Kit – (Transceiver)\Ping-Pong 
Demo\
.
4.6.1
Set up
Follow these steps to set up the Ping-Pong demo:
1.
Connect the LCD Serial Accessory board J1 port to the J101 connector on the 
PIC18 Wireless Development Board (See 
).
2.
Plug in the Radio PICtail Daughter board at slot J201 on the PIC18 Wireless 
Development Board. 
3.
To power the PIC18 Wireless Development Board from external power (9V or 
USB), insert a jumper at JP301 (Regulator Disconnect) on the PIC18 Wireless 
Development Board. To power it from batteries, remove the jumper on JP301.
4.
Insert a jumper at JP201 (LED power) on the PIC18 Wireless Development 
Board
5.
Ensure that the jumper is disconnected at JP1 position on the LCD Serial 
Accessory Board. This ensures that the LCD Serial Accessory Board is used in 
I
2
C mode and not in SPI mode. The Ping-Pong demo uses the LCD Serial 
Accessory board in I
2
C mode.
6.
Wireless demo board can be powered using any one of these options:
• Two AA Batteries
• 9V External Power Supply
• USB Port
• External 3.0-3.6V power source through test points TP301and TP302
7.
Insert a jumper at either JP302 or JP303 (Current Measure) on the PIC18 
Wireless Development Board.