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#freeze
閲覧総計:&counter(); (本日:&counter(today); 昨日:&counter(yesterday);)
*TVリモコン信号の受信機 [#q05d231d]
赤外線受信素子が安価(@150円)で販売されている。この素子を用いてTVリモコンの
信号の受信機を試作してみたので紹介します。
リモコンのチャンネルボタンを押している間だけLEDが点灯、ボタンをはなすとLED消灯
07/02/17
赤外線受信素子:SPS-450-1 (SANYO社製) @150円
http://akizukidenshi.com/catalog/items2.php?q=%A3%D3%A3%D0%A3%D3&s=score&p=1&r=1&page=#I-00572
TVリモコンは手持ちの物を利用
マルチTVリモコン:ATV-516 (audio-technica社製)
http://www.audio-technica.co.jp/products/remocon/atv-516.html
信号フォーマットは「NECフォーマット」を使用
【参考情報】
NECフォーマット
http://www.necel.com/ja/faq/mi_com/__com_remo.html#0101
受信ロジック
http://nis-ei.eng.hokudai.ac.jp/~aoki/laboratory03.html
の「7.実験6:リモコンによるフルカラーLEDの制御」の項
|&attachref(P1010299.JPG,zoom,150x150,button){新しい写真添付};|&attachref(P1010298.JPG,zoom,150x150,button){新しい写真添付};|&attachref(cdHxxR1C.JPG,zoom,150x150,button){新しい写真添付};|
/**
* TVリモコン信号(赤外線)受信器
* (ボタンと押している間だけLED点灯、ボタンをはなすとLED消灯)
*
* PIC16F628A 内蔵4MHz
* RB0: 赤外線受信器 SPS-450-1(SANYO社製)
* LED: RB2, RB3, RB4, RB5
* 電源:乾電池3本(4.5V)
*
* Device Flags: _BODEN_OFF _BOREN_OFF _CP_OFF _PWRTE_ON _WDT_OFF
* _LVP_OFF _MCLRE_OFF _INTRC_OSC_NOCLKOUT
* MikroC 6.2.1
*/
unsigned short int flag = 0;
unsigned short int custom_a = 0;
unsigned short int custom_b = 0;
unsigned short int data_a = 0;
unsigned short int data_b = 0;
unsigned short int old_F2 = 0;
unsigned short int old_F3 = 0;
unsigned short int old_F4 = 0;
unsigned short int old_F5 = 0;
void interrupt() { //割込み関数
unsigned short int i, b;
if(INTCON.INTF) { //割込み種がRB0/INT割込みの場合
INTCON.INTE = 0; //RB0/INT割込みの禁止
//リーダ部の確認
TMR0 = 0; //timer0リセット
while(PORTB.F0 == 0);
if(TMR0 < 120) { // < 141 (=9.0ms * 4MHz/4 /64)
flag = 1;
return;
}
TMR0 = 0; //timer0リセット
while(PORTB.F0 == 1);
if(TMR0 < 27) { // < 35 (=2.250ms * 4MHz/4 /64)
flag = 1;
return;
}else if(TMR0 < 60) { // < 71 (=4.5ms * 4MHz/4 /64)
//リピートリーダを受信した時
PORTB.F2 = old_F2;
PORTB.F3 = old_F3;
PORTB.F4 = old_F4;
PORTB.F5 = old_F5;
Delay_ms(96);
flag = 1;
return;
}
//custom codeの取得
custom_a = 0;
for (i = 0; i < 8; i++) {
TMR0 = 0; //timer0リセット
while(PORTB.F0 == 0);
while(PORTB.F0 == 1);
if(TMR0 < 27) // < 18 (=1.125ms * 4MHz/4 /64)
b = 0;
else // < 35 (=2.250ms * 4MHz/4 /64)
b = 1;
custom_a |= (b << i);
}
custom_b = 0;
for (i = 0; i < 8; i++) {
TMR0 = 0; //timer0リセット
while(PORTB.F0 == 0);
while(PORTB.F0 == 1);
if(TMR0 < 27) // < 18 (=1.125ms * 4MHz/4 /64)
b = 0;
else // < 35 (=2.250ms * 4MHz/4 /64)
b = 1;
custom_b |= (b << i);
}
//data codeの取得
data_a = 0;
for (i = 0; i < 8; i++) {
TMR0 = 0; //timer0リセット
while(PORTB.F0 == 0);
while(PORTB.F0 == 1);
if(TMR0 < 27) // < 18 (=1.125ms * 4MHz/4 /64)
b = 0;
else // < 35 (=2.250ms * 4MHz/4 /64)
b = 1;
data_a |= (b << i);
}
data_b = 0;
for (i = 0; i < 8; i++) {
TMR0 = 0; //timer0リセット
while(PORTB.F0 == 0);
while(PORTB.F0 == 1);
if(TMR0 < 27) // < 18 (=1.125ms * 4MHz/4 /64)
b = 0;
else // < 35 (=2.250ms * 4MHz/4 /64)
b = 1;
data_b |= (b << i);
}
//while(PORTB.F0 == 0); //ストップビット受信
if (data_a == ~data_b) { //data誤りのチェックOKの場合
switch (data_a) {
case 0x11: //2チャンネルボタン
PORTB.F2 = 1;
PORTB.F3 = 0;
PORTB.F4 = 0;
PORTB.F5 = 0;
break;
case 0x13: //4チャンネルボタン
PORTB.F2 = 0;
PORTB.F3 = 1;
PORTB.F4 = 0;
PORTB.F5 = 0;
break;
case 0x15: //6チャンネルボタン
PORTB.F2 = 0;
PORTB.F3 = 0;
PORTB.F4 = 1;
PORTB.F5 = 0;
break;
case 0x17: //8チャンネルボタン
PORTB.F2 = 0;
PORTB.F3 = 0;
PORTB.F4 = 0;
PORTB.F5 = 1;
break;
default:
PORTB.F2 = 0;
PORTB.F3 = 0;
PORTB.F4 = 0;
PORTB.F5 = 0;
break;
}
old_F2 = PORTB.F2;
old_F3 = PORTB.F3;
old_F4 = PORTB.F4;
old_F5 = PORTB.F5;
}
}
Delay_ms(40);
flag = 1;
}
void main() {
//使用変数の定義
unsigned short int i;
PORTB = 0b00000000; //PORTBの中身をきれいにする
TRISB = 0b00000001; //RB0を1:入力、他は0:出力に設定
//PIC稼働確認(LED点滅)
for (i=0; i < 5; i++) {
PORTB = 0b11111110;
Delay_ms(50);
PORTB = 0b00000000;;
Delay_ms(50);
}
//RB0/INT立下りエッジ割込み
//timer0プリスケーラ64回に設定
OPTION_REG = 0b10000101;
INTCON.INTE = 1; //RB0/INT割込みの許可
INTCON.GIE = 1; //全体割込み許可
do {
if(flag == 1) {
flag = 0;
PORTB.F2 = 0;
PORTB.F3 = 0;
PORTB.F4 = 0;
PORTB.F5 = 0;
INTCON.INTE = 1; //RB0/INT割込みの許可
}
}while(1);
}
~
~
★この情報は役に立ちましたか?
#vote(はい[24],普通[5],いいえ[7])
#vote(はい[24],普通[5],いいえ[8])
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