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v1.0.1 to add
PWM_StepperControl example
### Releases v1.0.1 1. Add example [PWM_StepperControl](https://github.com/khoih-prog/AVR_PWM/examples/PWM_StepperControl) to demo how to control Stepper Motor using PWM
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,150 @@ | ||
| /**************************************************************************************************************************** | ||
| PWM_StepperControl.ino | ||
| For AVR-based boards (UNO, Nano, Mega, 32U4, 16U4, etc. ) | ||
| Written by Khoi Hoang | ||
| Built by Khoi Hoang https://github.com/khoih-prog/AVR_PWM | ||
| Licensed under MIT license | ||
| This is pure hardware-based PWM | ||
| *****************************************************************************************************************************/ | ||
| /****************************************************************************************************************************** | ||
| // For UNO / Nano | ||
| Timer0 ( 8-bit) used by delay(), millis() and micros(), and PWM generation on pins 5 (6 not usable) | ||
| Timer1 (16-bit) used by the Servo.h library and PWM generation on pins 9 and 10 | ||
| Timer2 ( 8-bit) used by Tone() and PWM generation on pins 3 and 11 | ||
| // For Mega | ||
| Timer0 ( 8-bit) used by delay(), millis() and micros(), and PWM generation on pins 4 (13 not usable) | ||
| Timer1 (16-bit) used by the Servo.h library and PWM generation on pins 11, 12 | ||
| Timer2 ( 8-bit) used by Tone() and PWM generation on pins 9 and 10 | ||
| Timer3 (16-bit) used by PWM generation on pins 2, 3 and 5 | ||
| Timer4 (16-bit) used by PWM generation on pins 6, 7 and 8 | ||
| Timer5 (16-bit) used by PWM generation on pins 44, 45 and 46 | ||
| //////////////////////////////////////////// | ||
| // For Mega (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 44, 45, 46) | ||
| Pin 2 => TIMER3B // PE 4 ** 2 ** PWM2 | ||
| Pin 3 => TIMER3C // PE 5 ** 3 ** PWM3 | ||
| Pin 4 => TIMER0B // PG 5 ** 4 ** PWM4 | ||
| Pin 5 => TIMER3A // PE 3 ** 5 ** PWM5 | ||
| Pin 6 => TIMER4A // PH 3 ** 6 ** PWM6 | ||
| Pin 7 => TIMER4B // PH 4 ** 7 ** PWM7 | ||
| Pin 8 => TIMER4C // PH 5 ** 8 ** PWM8 | ||
| Pin 9 => TIMER2B // PH 6 ** 9 ** PWM9 | ||
| Pin 10 => TIMER2A // PB 4 ** 10 ** PWM10 | ||
| Pin 11 => TIMER1A // PB 5 ** 11 ** PWM11 | ||
| Pin 12 => TIMER1B // PB 6 ** 12 ** PWM12 | ||
| Pin 13 => TIMER0A // PB 7 ** 13 ** PWM13 | ||
| Pin 44 => TIMER5C // PL 5 ** 44 ** D44 | ||
| Pin 45 => TIMER5B // PL 4 ** 45 ** D45 | ||
| Pin 46 => TIMER5A // PL 3 ** 46 ** D46 | ||
| //////////////////////////////////////////// | ||
| // For 32u4 (3, 5, 6, 9, 10, 11, 13) | ||
| Pin 3 => TIMER0B | ||
| Pin 5 => TIMER3A | ||
| Pin 6 => TIMER4D | ||
| Pin 9 => TIMER1A | ||
| Pin 10 => TIMER1B | ||
| Pin 11 => TIMER0A | ||
| Pin 13 => TIMER4A | ||
| //////////////////////////////////////////// | ||
| // For UNO, Nano (3, 5, 6, 9, 10, 11) | ||
| Pin 3 => TIMER2B, | ||
| Pin 5 => TIMER0B | ||
| Pin 6 => TIMER0A | ||
| Pin 9 => TIMER1A | ||
| Pin 10 => TIMER1B | ||
| Pin 11 => TIMER2(A) | ||
| ******************************************************************************************************************************/ | ||
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| // Use with Stepper-Motor driver, such as TMC2209 | ||
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| #define _PWM_LOGLEVEL_ 4 | ||
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| #include "AVR_PWM.h" | ||
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| #if ( PWM_USING_ATMEGA2560 ) | ||
| // Pins tested OK in Mega | ||
| //#define STEP_PIN 12 // Timer1B on Mega | ||
| //#define STEP_PIN 11 // Timer1A on Mega | ||
| //#define STEP_PIN 9 // Timer2B on Mega | ||
| //#define STEP_PIN 2 // Timer3B on Mega | ||
| //#define STEP_PIN 3 // Timer3C on Mega | ||
| //#define STEP_PIN 5 // Timer3A on Mega | ||
| //#define STEP_PIN 6 // Timer4A on Mega | ||
| //#define STEP_PIN 7 // Timer4B on Mega | ||
| #define STEP_PIN 8 // Timer4C on Mega | ||
| //#define STEP_PIN 46 // Timer5A on Mega | ||
| //#define STEP_PIN 45 // Timer5B on Mega | ||
| //#define STEP_PIN 44 // Timer5C on Mega | ||
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| #elif ( PWM_USING_ATMEGA_32U4 ) | ||
| // Pins tested OK on 32u4 | ||
| //#define STEP_PIN 5 // Timer3A on 32u4 | ||
| #define STEP_PIN 9 // Timer1A on 32u4 | ||
| //#define STEP_PIN 10 // Timer1B on 32u4 | ||
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| #else | ||
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| // Pins tested OK on Nano / UNO | ||
| //#define STEP_PIN 9 // Timer1A on UNO, Nano, etc | ||
| #define STEP_PIN 10 // Timer1B on UNO, Nano, etc | ||
| //#define STEP_PIN 5 // Timer0B on UNO, Nano, e | ||
| //#define STEP_PIN 3 // Timer2B on UNO, Nano, etc | ||
| #endif | ||
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| #define DIR_PIN 12 | ||
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| AVR_PWM* stepper; | ||
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| void setSpeed(int speed) | ||
| { | ||
| if (speed == 0) | ||
| { | ||
| // Use DC = 0 to stop stepper | ||
| stepper->setPWM(STEP_PIN, 500, 0); | ||
| } | ||
| else | ||
| { | ||
| // Set the frequency of the PWM output and a duty cycle of 50% | ||
| digitalWrite(DIR_PIN, (speed < 0)); | ||
| stepper->setPWM(STEP_PIN, abs(speed), 50); | ||
| } | ||
| } | ||
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| void setup() | ||
| { | ||
| pinMode(DIR_PIN, OUTPUT); | ||
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| Serial.begin(115200); | ||
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| while (!Serial && millis() < 5000); | ||
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| delay(100); | ||
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| Serial.print(F("\nStarting PWM_StepperControl on ")); | ||
| Serial.println(BOARD_NAME); | ||
| Serial.println(AVR_PWM_VERSION); | ||
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| // Create PWM object and passed just a random frequency of 500 | ||
| // The duty cycle is how you turn the motor on and off | ||
| stepper = new AVR_PWM(STEP_PIN, 500, 0); | ||
| } | ||
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| void loop() | ||
| { | ||
| setSpeed(1000); | ||
| delay(3000); | ||
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| // Stop before reversing | ||
| setSpeed(0); | ||
| delay(3000); | ||
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| // Reversing | ||
| setSpeed(-500); | ||
| delay(3000); | ||
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| // Stop before reversing | ||
| setSpeed(0); | ||
| delay(3000); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,5 +1,5 @@ | ||
| name=AVR_PWM | ||
| version=1.0.0 | ||
| version=1.0.1 | ||
| author=Khoi Hoang <[email protected]> | ||
| maintainer=Khoi Hoang <[email protected]> | ||
| sentence=This library enables you to use Hardware-based PWM channels on AVR-based boards, such as Nano, UNO, Mega, Leonardo, 32u4, etc., to create and output PWM. | ||
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