Product Details
Our IO expansion board is evolving, this latest V5 IO expansion shield is now supporting Xbee. It combines our popular Xbee shield with IO expansion shield(V4). It even supports SD card which provides the ultimate functional expansion for Arduino so far. As its predecessor, it supports RS485, APC220, Bluetooth communication, servo control. Specification:
Support RS485
Support Xbee (Xbee pro)
Support Bluetooth
Support APC220
Support SD card read/write
Support RS485
Support Xbee (Xbee pro)
Support Bluetooth
Support APC220
Support SD card read/write
1.extensionof 14digitalIOports(12servointerface)and power;
2.6analogIOportsand power;
3.1digitalexternal powerportterminal;
4.Digital-portexternalpower supply andan onboardpower supply automaticswitching;
5.1External power inputterminalandaninputpin;
6.RS485interface;
7.reset button;
8.xbee/Bluetooh BeeBluetoothwireless data transmissioninterface;
9.APC220/Bluetooh V3Bluetooth wirelessdata transmissioninterface;
10.IIC/I2C/TWIinterface;
11.3.3Voutput port;
12.SDcard moduleinterface;RS485It uses an SP485CN chip to handle comms.The screw terminals (assuming that the three jumpers are set to '485') marked 'A' and 'B' go directly to the IC 'A' and 'B' pins (6 & 7 respectively).The screw terminal marked VCC goes to the IC VCC pin (8), and also to the board's +5V line (i.e. the Arduino's +5V rail).The screw terminal marked GND goes to the IC GND pin (5), and also to the board's GND line (i.e. the Arduino's 0V rail).The chip's DI (Data Input?) pin (4) is connected to the Arduino's Digital Pin 1 (TX).The chip's RO (Data Output?) pin (1) is connected to the Arduino's Digital Pin 0 (RX), with a resistor pull-up to the +5V rail.The chip's DE (output enable) pin (3) is connected (via a resistor) to the Arduino's Digital Pin 2 - this is active high.This DE pin is also connected to the chip's RE bar (receiver enable) pin (2) and therefore controlled by the Arduino's Digital pin 2 too - this is active low.Arduino Digital Pin 2 = Rx/Tx 'Enable'; High to Transmit, Low to ReceiveSo, to transmit data from Arduino Digital Pin 1 you need to take Digital pin 2 high, and to receive data to Arduino Digital Pin 0 you need to take Arduino Digital pin 2 low.Pin Ou
2.6analogIOportsand power;
3.1digitalexternal powerportterminal;
4.Digital-portexternalpower supply andan onboardpower supply automaticswitching;
5.1External power inputterminalandaninputpin;
6.RS485interface;
7.reset button;
8.xbee/Bluetooh BeeBluetoothwireless data transmissioninterface;
9.APC220/Bluetooh V3Bluetooth wirelessdata transmissioninterface;
10.IIC/I2C/TWIinterface;
11.3.3Voutput port;
12.SDcard moduleinterface;RS485It uses an SP485CN chip to handle comms.The screw terminals (assuming that the three jumpers are set to '485') marked 'A' and 'B' go directly to the IC 'A' and 'B' pins (6 & 7 respectively).The screw terminal marked VCC goes to the IC VCC pin (8), and also to the board's +5V line (i.e. the Arduino's +5V rail).The screw terminal marked GND goes to the IC GND pin (5), and also to the board's GND line (i.e. the Arduino's 0V rail).The chip's DI (Data Input?) pin (4) is connected to the Arduino's Digital Pin 1 (TX).The chip's RO (Data Output?) pin (1) is connected to the Arduino's Digital Pin 0 (RX), with a resistor pull-up to the +5V rail.The chip's DE (output enable) pin (3) is connected (via a resistor) to the Arduino's Digital Pin 2 - this is active high.This DE pin is also connected to the chip's RE bar (receiver enable) pin (2) and therefore controlled by the Arduino's Digital pin 2 too - this is active low.Arduino Digital Pin 2 = Rx/Tx 'Enable'; High to Transmit, Low to ReceiveSo, to transmit data from Arduino Digital Pin 1 you need to take Digital pin 2 high, and to receive data to Arduino Digital Pin 0 you need to take Arduino Digital pin 2 low.Pin Ou
Sample Code
RS485 Transmit Data
int EN = 2; //RS485 has a enable/disable pin to transmit or receive data. Arduino Digital
Pin 2 = Rx/Tx 'Enable'; High to Transmit, Low to Receive
Pin 2 = Rx/Tx 'Enable'; High to Transmit, Low to Receive
void setup()
{
pinMode(EN, OUTPUT);
Serial.begin(19200);
}
{
pinMode(EN, OUTPUT);
Serial.begin(19200);
}
void loop()
{
// send data
digitalWrite(EN, HIGH);//Enable data transmit
Serial.print('A');
delay(1000);
}
{
// send data
digitalWrite(EN, HIGH);//Enable data transmit
Serial.print('A');
delay(1000);
}
RS485 Receiving Data
int ledPin = 13;
int EN = 2;
int val;
int EN = 2;
int val;
void setup()
{
pinMode(ledPin, OUTPUT);
pinMode(EN, OUTPUT);
Serial.begin(19200);
}
{
pinMode(ledPin, OUTPUT);
pinMode(EN, OUTPUT);
Serial.begin(19200);
}
void loop()
{
// receive data
digitalWrite(EN, LOW);//Enable Receiving Data
val = Serial.read();
if (-1 != val) {
if ('A' == val) {
digitalWrite(ledPin, HIGH);
delay(500);
digitalWrite(ledPin, LOW);
delay(500);
}
}
{
// receive data
digitalWrite(EN, LOW);//Enable Receiving Data
val = Serial.read();
if (-1 != val) {
if ('A' == val) {
digitalWrite(ledPin, HIGH);
delay(500);
digitalWrite(ledPin, LOW);
delay(500);
}
}
Package Included:
1 x Xbee/Bluetooth/SRS485 RS485/APC220 I/O Sensor Expansion Shield V5.0 Arduino
1 x Xbee/Bluetooth/SRS485 RS485/APC220 I/O Sensor Expansion Shield V5.0 Arduino
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