27980 Parallax Inc, 27980 Datasheet - Page 7

• Manufacturer Part Number: 27980
• Description: TRANSMITTER 433MHZ RF 4-SIP
• Manufacturer: Parallax Inc

Specifications of 27980

• Frequency: 433.92MHz
• Applications: Remote Sensors and Triggers
• Data Rate - Maximum: 19.2 kBaud
• Current - Transmitting: 10mA
• Data Interface: PCB, Through Hole
• Antenna Connector: On-Board, Whip
• Voltage - Supply: 5V
• Package / Case: Module
• Product: Microcontroller Accessories
• Flash: 512 KBytes
• Timers: 10 x 8 bit
• Board Size: 34.8 mm x 29.46 mm x 7.87 mm
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Power - Output: -
• Operating Temperature: -
• Memory Size: -
• Modulation Or Protocol: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

LOOP
Javelin Stamp Application Example
The following two programs demonstrate a simple transmit (Tx) and receive (Rx) communication utilizing
the RF modules and Javelin Stamps.
Note: For the transmit (Tx) code connect I/O pin 8 of a Javelin Stamp to the DATA line on the RF
transmitter module. For the receive (Rx) code, connect I/O pin 7 of another Javelin Stamp to the DATA
line on the RF receiver module.
RFmoduleTX.java
/***
RFmoduleTX.java
This code is for simple demonstration of the Parallax 433.92 Mhz RF Transmitter
(#27980)
Connect Javelin I/O pin 8 to the RF Tx module DATA line.
Connect +5v (Vdd) to the RF Tx module 5v line.
Connect ground (Vss) to the RF Tx module GND line.
This code will transmit at 9600 baud, inverted.
This code is meant to run in conjunction with RF Rx module (#27981) running code set
to receive at 9600 baud.
***/
import stamp.core.*;
public class RFmoduleTx {
communication.
}
©Parallax, Inc. • 433.92 MHz RF Transmitter and Receiver (#27980, #27981) • v1.0
DEBUG ? x
DEBUG ? y
LOW 0
SERIN 7, 16468, [WAIT("!"), x.HIGHBYTE, x.LOWBYTE, y.HIGHBYTE, y.LOWBYTE]
HIGH 0
static Uart txUart = new Uart (Uart.dirTransmit, CPU.pin8, Uart.invert,
static byte x = 0;
static byte y = 0;
public static void main()
}
while(true) {
}
if (x >= 10) x = 0;
if (y >= 10) y = 0;
CPU.pulseOut(300, CPU.pin8);
txUart.sendString("!");
txUart.sendByte(x);
txUart.sendByte(y);
CPU.delay(25);
else x++;
else y++;
Uart.speed9600, Uart.stop1);
{
//Sync pulse to help Rx after periods of no
//Start char that Rx will look for
//Sending 2 words: high byte, low byte
//help set spacing
//end while
//end main
//end class
1/06
Page 7 of 8