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| en:examples:sensor:ultrasonic_distance [2015/11/10 12:18] – heikopikner | en:examples:sensor:ultrasonic_distance [2020/07/20 09:00] (current) – external edit 127.0.0.1 | ||
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| Line 1: | Line 1: | ||
| ====== Ultrasonic distance sensor ====== | ====== Ultrasonic distance sensor ====== | ||
| - | //Necessary knowledge: | + | //Necessary knowledge: |
| + | [HW] [[en: | ||
| + | [AVR] [[en: | ||
| + | [LIB] [[en: | ||
| + | [LIB] [[en: | ||
| ===== Theory ===== | ===== Theory ===== | ||
| Line 21: | Line 25: | ||
| <code c> | <code c> | ||
| #define ULTRASONIC_SPEED_OF_SOUND 33000 // cm/s | #define ULTRASONIC_SPEED_OF_SOUND 33000 // cm/s | ||
| - | |||
| // Ultrasonic distance measuring | // Ultrasonic distance measuring | ||
| - | unsigned short ultrasonic_measure_srf05(pin | + | unsigned short ultrasonic_measure_srf05(pin |
| { | { | ||
| // Pin setup | // Pin setup | ||
| Line 34: | Line 37: | ||
| // Create trigger pulse | // Create trigger pulse | ||
| - | pin_set(srf05); | + | pin_set(triggerecho); |
| | | ||
| // Reset timer | // Reset timer | ||
| Line 82: | Line 85: | ||
| </ | </ | ||
| - | Presented function allows the user to choose the echo/ | + | Presented function allows the user to choose the echo/ |
| <code c> | <code c> | ||
| - | // | ||
| // The example program of the ultrasonic distance sensor of the HomeLab | // The example program of the ultrasonic distance sensor of the HomeLab | ||
| // Measuring the distance is blocking. | // Measuring the distance is blocking. | ||
| - | // | ||
| #include < | #include < | ||
| #include < | #include < | ||
| Line 95: | Line 96: | ||
| #include < | #include < | ||
| - | // | ||
| // Pins of ultrasonic sensor | // Pins of ultrasonic sensor | ||
| // Robotic HomeLab II | // Robotic HomeLab II | ||
| - | pin pin_pin_trigger_echo = PIN(F, 2); | + | //pin pin_pin_trigger_echo = PIN(F, 2); |
| // Robotic HomeLab III | // Robotic HomeLab III | ||
| Line 124: | Line 124: | ||
| // Line selection | // Line selection | ||
| - | lcd_gfx_goto_char_xy(1, | + | lcd_gfx_goto_char_xy(1, |
| // Name of the program | // Name of the program | ||
| Line 133: | Line 133: | ||
| // Endless loop. | // Endless loop. | ||
| - | while (true) | + | while (1) |
| { | { | ||
| // Measuring | // Measuring | ||
| Line 142: | Line 142: | ||
| { | { | ||
| // converting the distance to text. | // converting the distance to text. | ||
| - | sprintf(text, | + | sprintf(text, |
| } | } | ||
| // Were there errors during the measuring ? | // Were there errors during the measuring ? | ||
| Line 160: | Line 160: | ||
| } | } | ||
| </ | </ | ||
| - | If older type sensor | + | To make sure that the ultrasonic |
