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--- et:examples:communication:bluetooth:eunistone [2012/10/22 10:53] – rellermaa
+++ et:examples:communication:bluetooth:eunistone [2020/07/20 09:00] (current) – external edit 127.0.0.1
@@ Line 6: / Line 6: @@
 [LIB] [[et:software:homelab:library:usart]], \\
 [LIB] [[et:software:homelab:library:module:lcd_graphic]] \\
+**BTBee Pro mooduli puhul vaata siia:**
+[[et/examples/communication/bluetooth/btbee|BTBee Pro moodul]] \\
+**Bluetooth Bee mooduli puhul vaata siia:**
+[[et/examples/communication/bluetooth|Bluetooth Bee moodul]]
+ \\
+ \\
+**Täielik AT käskude nimekiri (en):** \\
+[[http://www.cooking-hacks.com/skin/frontend/default/cooking/pdf/Bluetooth_SPP_AT_SW_description.pdf|AT käsustik]]
  ===== Teooria =====
-{{  ::examples:communication:bt.jpg?220|BT moodul.}}
+{{  ::examples:communication:bluetoothboard.png?220|BT moodul}}
 Bluetooth on tööstusstandard seadmete omavaheliseks traadita ühenduseks. Selle eesmärgiks on juhtmeühenduste asendamine mobiiltelefonide, arvutite jt. suhtlemisel perifeeriaseadmetega.
@@ Line 31: / Line 41: @@
 Kui ühendus on loodud virtuaalse jadaliidese abil, siis on võimalik arvutist saata Hyper Terminali vms. kaudu andmeid Bluetooth Bee vahendusel kontrollerile.
-Järgnev kood selgitab mooduli kasutamist analoogselt ZigBee näitele. Siin seatakse Bluetooth Bee ülemaks seadmeks (seda on vaja teha ainult esimesel korral, nagu ka pin-koodi, mooduli nime jm. seadete sisestust) ja luuakse selle abil ühendus mõne muu seadmega.
+Järgnev kood näitab lühidalt, kuidas luua ühendus Kodulabori kontrolleri ning arvuti vahel.
 <code c>
+#define F_CPU 14745600
+#include <homelab/pin.h>
+#include <homelab/delay.h>
+#include <homelab/module/lcd_gfx.h>
+#include <homelab/usart.h>
+//
+// Select USART channel
+usart port = USART(1);
+//
+// Initialize bluetooth module
+//
+uint8_t Bluetooth_Connect()
+{
+	char dump;
+	char str[10];
+	_delay_ms(500);
+	lcd_gfx_clear();
+	// Software reset
+	do
+	{
+		while(usart_has_data(port))
+		dump = usart_read_char(port);
+		usart_send_string(port,"AT+JRES\r\n");
+		while(!usart_has_data(port));
+		usart_read_string(port,str,5);
+		lcd_gfx_write_string(str);
+	} while (strcmp(str,"ROK"));
+	// set request password 123456
+	while(usart_has_data(port))
+		dump = usart_read_char(port);
+	usart_send_string(port,"AT+JSEC=3,1,1,06,123456\r\n");
+	while(!usart_has_data(port));
+	usart_read_string(port,str,4);
+	lcd_gfx_write_string(str);
+	if (strcmp(str,"OK") != 0)
+		return 0;
+	// Set to discoverable
+	while(usart_has_data(port))
+		dump = usart_read_char(port);
+	usart_send_string(port,"AT+JDIS=3\r\n");
+	while(!usart_has_data(port));
+	usart_read_string(port,str,4);
+	lcd_gfx_write_string(str);
+	if (strcmp(str,"OK") != 0)
+		return 0;
+	// Register local services
+	while(usart_has_data(port))
+		dump = usart_read_char(port);
+	usart_send_string(port,"AT+JRLS=1101,11,Serial Port,01,000000\r\n");
+	while(!usart_has_data(port));
+	usart_read_string(port,str,5);
+	lcd_gfx_write_string(str);
+	if (strcmp(str,"OK") != 0)
+		return 0;
+	// Auto accept all connection requests
+	while(usart_has_data(port))
+		dump = usart_read_char(port);
+	usart_send_string(port,"AT+JAAC=1\r\n");
+	while(!usart_has_data(port));
+	usart_read_string(port,str,5);
+	lcd_gfx_write_string(str);
+	if (strcmp(str,"OK") != 0)
+		return 0;
+	// Connect using password 123456
+	while(usart_has_data(port))
+		dump = usart_read_char(port);
+	usart_send_string(port,"AT+JPCR=06,123456\r\n");
+	while(!usart_has_data(port));
+	usart_read_string(port,str,5);
+	lcd_gfx_write_string(str);
+	if (strcmp(str,"OK") != 0)
+		return 0;
+	while( UCSR1A & (1<<RXC1) )
+		dump = UDR1;
+	return 1;
+}
+//
+// Put bluetooth module in transparent mode
+//
+uint8_t Bluetooth_transparent()
+{
+	char str[50];
+	do
+	{
+		usart_has_data(port);
+		usart_read_string(port,str,50);
+	}while(!strstr(str,"+RSLE"));
+	usart_send_string(port,"AT+JSCR\r\n");
+}
+//
+// Main program
+//
+int main(void)
+{
+	char text[15];
+	char dump;
+	char c;
+	int a = 0;
+	int connect = 0;
+	// Initialize LCD
+	lcd_gfx_init();
+	lcd_gfx_clear();
+	// Initialize USART
+	usart_init_async(port,	USART_DATABITS_8,
+							USART_STOPBITS_ONE,
+							USART_PARITY_NONE,
+							USART_BAUDRATE_ASYNC(115200));
+	lcd_gfx_write_string("Reset:");
+	//Connect to Bluetooth on PC
+	while(!Bluetooth_Connect());
+	lcd_gfx_clear();
+	lcd_gfx_goto_char_xy(0,1);
+	lcd_gfx_write_string("Connect me...");
+	//Wait for terminal connection from PC
+	Bluetooth_transparent();
+	//Connection established, run rest of program.
+	lcd_gfx_clear();
+	lcd_gfx_goto_char_xy(0,0);
+	lcd_gfx_write_string("Connected");
+	lcd_gfx_goto_char_xy(0,1);
+	lcd_gfx_write_string("Terminal text is mirrored toterminal and  LCD; + sign   clears screen ");
+	while(1)
+	{
+		//Read USART data and mirror it to LCD and back to the terminal
+		while(!(UCSR1A & (1<<RXC1)));
+		dump = UDR1;
+		//If '+' character is sent, clear LCD screen
+		if(dump == '+')
+			lcd_gfx_clear();
+		else
+		{
+			lcd_gfx_write_char(dump);
+			usart_send_char(port,dump);
+		}
+	}
+}
 </code>

et/examples/communication/bluetooth/eunistone.1350903185.txt.gz · Last modified: 2020/07/20 09:00 (external edit)