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| Both sides previous revisionPrevious revisionNext revision | Previous revision |
| en:examples:sensor:color [2012/06/07 00:43] – heikopikner | en:examples:sensor:color [2020/07/20 12:00] (current) – external edit 127.0.0.1 |
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| ====== Color sensor ====== | ====== Color sensor ====== |
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| //Necessary knowledge: [HW] [[en:hardware:homelab:sensor]], [HW] [[en:hardware:homelab:lcd]], [AVR] [[en:avr:adc]], [LIB] [[en:software:homelab:library:adc]], [LIB] [[en:software:homelab:library:module:lcd_graphic]], [LIB] [[en:software:homelab:library:module:sensor]]// | //Necessary knowledge: [HW] [[en:hardware:homelab:sensor]], [HW] [[en:hardware:homelab:digi]], [AVR] [[en:avr:adc]], [LIB] [[en:software:homelab:library:adc]], [LIB] [[en:software:homelab:library:module:lcd_graphic]], [LIB] [[en:software:homelab:library:module:sensor]]// |
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| ===== Theory ===== | ===== Theory ===== |
| ColorPAL sensor requires only three connections: +5 V supply, ground and serial data. It can be plugged into Robotic Homelab communication board EXT_UART connector. Separate TxD and RxD pins needs to be connected together using diode. Communication with the ColorPAL takes place using serial I/O transmitting and receiving at between 2400 and 7200 baud using a non-inverted open-drain protocol. | ColorPAL sensor requires only three connections: +5 V supply, ground and serial data. It can be plugged into Robotic Homelab communication board EXT_UART connector. Separate TxD and RxD pins needs to be connected together using diode. Communication with the ColorPAL takes place using serial I/O transmitting and receiving at between 2400 and 7200 baud using a non-inverted open-drain protocol. |
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| [{{ :examples:sensor:color:colorpal_wiring1.png?580 |ColorPAL wiring schema}}] | [{{ :examples:sensor:color:colorpal_wiring1.png?580 |ColorPAL wiring schematic}}] |
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| | Example code enabling to read the RGB values which is printed on the screen using hex format. Measurements with ColorPAL sensor will be made automatically. |
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| <code c> | <code c> |
| #include <homelab/usart.h> | #include <homelab/usart.h> |
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| // | |
| // Determining USART interface. | // Determining USART interface. |
| // | |
| usart port = USART(0); | usart port = USART(0); |
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| // | // Main program |
| //MAIN | |
| // | |
| int main(void) | int main(void) |
| { | { |
| data[i-3] = c; | data[i-3] = c; |
| } | } |
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| } | } |
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