PHP 450.00 XBEE/BLUETOOTH/SRS485 RS485/APC220 I/O SENSOR EXPANSION SHIELD

Xbee/Bluetooth/SRS485 RS485/APC220 I/O Sensor Expansion Shield V5.0 For Arduino

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

1. Extension of 14digital IO ports(12 servo interface) and power;
2. 6 ****og IO ports and power;
3. 1 digital external power port terminal;
4. Digital-port external power supply andan onboard power supply automatic switching;
5. 1 External power input terminal and an input pin;
6. RS485interface;
7. Reset button;
8. Xbee/Bluetooth Bee Bluetooth wireless data transmission interface;
9. APC220/Bluetooth V3Bluetooth wireless data transmission interface;
10. IIC/I2C/TWI interface;
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 boards +5V line (i.e. the Arduinos +5V rail).The screw terminal marked GND goes to the IC GND pin (5), and also to the boards GND line (i.e. the Arduinos 0V rail).The chips DI (Data Input?) pin (4) is connected to the Arduinos Digital Pin 1 (TX).The chips RO (Data Output?) pin (1) is connected to the Arduinos Digital Pin 0 (RX), with a resistor pull-up to the +5V rail. The chips DE (output enable) pin (3) is connected (via a resistor) to the Arduinos Digital Pin 2 - this is active high. This DE pin is also connected to the chips RE bar (receiver enable) pin (2) and therefore controlled by the Arduinos Digital pin 2 too - this is active low. Arduino Digital Pin 2 = Rx/Tx Enable; High to Transmit, Low to Receive So, 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

void setup()
{
pinMode(EN, OUTPUT);
Serial.begin(19200);
}

void loop()
{
// send data
digitalWrite(EN, HIGH);//Enable data transmit
Serial.print(A);
delay(1000);
}


RS485 Receiving Data

int ledPin = 13;
int EN = 2;
int val;

void setup()
{
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);
}
}
}



Package Included:
1 x Xbee/Bluetooth/SRS485 RS485/APC220 I/O Sensor Expansion Shield V5.0 For Arduino



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