New project idea: btstack on a stick
March 21st, 2010Experiments with CC1101 radios
March 20th, 2010Flashing the Betty remote
March 18th, 2010Programming a TV remote with IR and RF capabilities
March 14th, 2010Stepping forward with Arduino Bluetooth communication
February 7th, 2010The video shows that changing the display state can either be done locally (by pushing a button) or by receiving data via the Bluetooth RFCOMM link. On a state change data is also transmitted via this link. For the Arduino this is done by just using the serial port.
See the Arduino code below:
#include <S65Display.h>
S65Display lcd;
int state=0;
const int button1_pin=2;
const int button2_pin=3;
void drawText_0(void)
{
lcd.drawTextPGM(30, 50, PSTR("State 0"), 2, RGB(0, 0, 255), RGB(255, 255, 255));
}
void drawText_1(void)
{
lcd.drawTextPGM(30, 50, PSTR("State 1"), 2, RGB(0, 0, 255), RGB(255, 255, 255));
}
void setup()
{
state=0;
//init LCD
lcd.init(4); //spi-clk = Fcpu/4
//clear screen
lcd.clear(RGB(255, 255, 255));
drawText_0();
pinMode(button1_pin, INPUT);
pinMode(button2_pin, INPUT);
Serial.begin(9600);
}
void loop()
{
static byte recvd_byte=' ';
if (Serial.available() > 0)
{
recvd_byte=Serial.read();
}
if ((state == 0) && ((digitalRead(button2_pin) == LOW) || (recvd_byte=='1')))
{
state=1;
drawText_1();
Serial.println("State 1");
recvd_byte=' ';
}
if ((state == 1) && ((digitalRead(button1_pin) == LOW) || (recvd_byte=='0')))
{
state=0;
drawText_0();
Serial.println("State 0");
recvd_byte=' ';
}
}










