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Author: Roman Toropov
Last Updated: 2016-02-19
Package Version: 1.0.0.0
Example: 1.0.0.0
Category: Motor Control
Downloaded: 1997 times
Followed by: 3 users
License: MIT license
Control of fan speed depending on the temperature
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| DOWNLOAD LINK | RELATED COMPILER | CONTAINS |
|---|---|---|
| 1367411264_dc_fan_speed_con_mikroc_avr.zip [124.05KB] | mikroC PRO for AVR |
|
// Roman Toropov
// Termostat source
char duty;
unsigned int temp2write;
void main() {
DDB0_bit = 1;
PWM1_Init(_PWM1_FAST_MODE, _PWM1_PRESCALER_1, _PWM1_NON_INVERTED, 0);
do {
Ow_Reset(&PORTB, 2); // Onewire reset signal
Ow_Write(&PORTB, 2, 0xCC); // Issue command SKIP_ROM
Ow_Write(&PORTB, 2, 0x44); // Issue command CONVERT_T
Delay_us(120);
Ow_Reset(&PORTB, 2);
Ow_Write(&PORTB, 2, 0xCC); // Issue command SKIP_ROM
Ow_Write(&PORTB, 2, 0xBE); // Issue command READ_SCRATCHPAD
temp2write = Ow_Read(&PORTB, 2);
temp2write = (Ow_Read(&PORTB, 2) << 8) + temp2write;
temp2write = temp2write >> 4 ;
// degrees Celsius in decimal form, natural number
if (temp2write > 37) { duty = (temp2write - 37) * 5 + 20; }
if (temp2write > 45) { duty = 255; }
if (temp2write < 38) { duty = 0; }
PWM1_Set_Duty(duty);
Delay_ms(3000);
} while (1);
}
