From: Vladimir Garistov <vl.garistov@gmail.com>
Date: Wed, 9 Nov 2022 14:06:10 +0000 (+0200)
Subject: Added tinkercad links and comments; formatting
X-Git-Url: https://kolegite.com/gitweb/?a=commitdiff_plain;h=f6abf07e7ab1a44534590b3931e412a6efdb3d8d;p=vmks.git

Added tinkercad links and comments; formatting
---

diff --git a/Examples/UART/Analog_Serial_Send_-_LDR/Analog_Serial_Send_-_LDR.ino b/Examples/UART/Analog_Serial_Send_-_LDR/Analog_Serial_Send_-_LDR.ino
index 6cb7a7b..9459d13 100644
--- a/Examples/UART/Analog_Serial_Send_-_LDR/Analog_Serial_Send_-_LDR.ino
+++ b/Examples/UART/Analog_Serial_Send_-_LDR/Analog_Serial_Send_-_LDR.ino
@@ -4,13 +4,13 @@ uint16_t value = 0;
 
 void setup()
 {
-  pinMode(A0, INPUT);
-  Serial.begin(9600);
+	pinMode(LDR, INPUT);
+	Serial.begin(38400, SERIAL_8E2);
 }
 
 void loop()
 {
-  value = analogRead(LDR);
-  Serial.println(value);
-  delay(100);
+	value = analogRead(LDR);
+	Serial.println(value);
+	delay(100);
 }
diff --git a/Examples/UART/Analog_Serial_Send_-_LDR/tinkercad_link.txt b/Examples/UART/Analog_Serial_Send_-_LDR/tinkercad_link.txt
new file mode 100644
index 0000000..5e00277
--- /dev/null
+++ b/Examples/UART/Analog_Serial_Send_-_LDR/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/iVX5kSRkIeb-analogserialsend-ldr
\ No newline at end of file
diff --git a/Examples/UART/UART-Send/UART-Send.ino b/Examples/UART/UART-Send/UART-Send.ino
index 9470a17..c8564ed 100644
--- a/Examples/UART/UART-Send/UART-Send.ino
+++ b/Examples/UART/UART-Send/UART-Send.ino
@@ -5,20 +5,20 @@
  *  0x0D => [CARRIAGE RETURN]
  */
 
-void setup() {
-  // put your setup code here, to run once:
-  Serial.begin(9600);
+void setup()
+{
+	Serial.begin(9600);
 }
 
-void loop() {
-  // put your main code here, to run repeatedly:
-  Serial.print('V');    // Sends 0x56
-//  Serial.println('V');  // Sends 0x56 0x0D 0x0A
-//  Serial.write(0x56);   // Sends 0x56
-    
-  while(Serial.available() > 0)
-  {
-    Serial.read();
-  }
-  delay(500);
+void loop()
+{
+	Serial.print('V');		// Sends 0x56
+//	Serial.println('V');	// Sends 0x56 0x0D 0x0A
+//	Serial.write(0x56);		// Sends 0x56
+
+	while(Serial.available() > 0)
+	{
+		Serial.read();
+	}
+	delay(500);
 }
diff --git a/Examples/UART/UART-Send/UART-Send.png b/Examples/UART/UART-Send/UART-Send.png
new file mode 100644
index 0000000..bebc3db
Binary files /dev/null and b/Examples/UART/UART-Send/UART-Send.png differ
diff --git a/Examples/UART/UART-Send/tinkercad_link.txt b/Examples/UART/UART-Send/tinkercad_link.txt
new file mode 100644
index 0000000..5a371a3
--- /dev/null
+++ b/Examples/UART/UART-Send/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/4fzzU2QRVqM-uart-send
\ No newline at end of file
diff --git a/Examples/interrupts/pin_change_demo/pin_change_demo.ino b/Examples/interrupts/pin_change_demo/pin_change_demo.ino
index db5f18a..6160d0b 100644
--- a/Examples/interrupts/pin_change_demo/pin_change_demo.ino
+++ b/Examples/interrupts/pin_change_demo/pin_change_demo.ino
@@ -2,26 +2,31 @@ volatile bool change_detected = false;
 
 void setup()
 {
-  // put your setup code here, to run once:
-  DDRC &= ~((1 << DDC0) | (1 << DDC1) | (1 << DDC2) | (1 << DDC3));
-  PORTC |= (1 << DDC0) | (1 << DDC1) | (1 << DDC2) | (1 << DDC3);
-  PCMSK1 |= (1 << PCINT8) | (1 << PCINT9) | (1 << PCINT10) | (1 << PCINT11);
-  PCICR |= (1 << PCIE1);
-  Serial.begin(38400, SERIAL_8E2);
+	// Configure pins PC0, PC1, PC2 and PC3 (A0, A1, A2 and A3) as inputs
+	DDRC &= ~((1 << DDC0) | (1 << DDC1) | (1 << DDC2) | (1 << DDC3));
+	// Enable the built-in pull-up resistors for the same pins
+	PORTC |= (1 << DDC0) | (1 << DDC1) | (1 << DDC2) | (1 << DDC3);
+	// Configure these pins to generate group 1 pin change interrupt
+	PCMSK1 |= (1 << PCINT8) | (1 << PCINT9) | (1 << PCINT10) | (1 << PCINT11);
+	// Enable the group 1 pin change interrupt
+	PCICR |= (1 << PCIE1);
+	Serial.begin(38400, SERIAL_8E2);
 }
 
 void loop()
 {
-  if (change_detected)
-  {
-    delay(100);
-    Serial.print("Switch changed: ");
-    Serial.println(PINC & ((1 << PINC0) | (1 << PINC1) | (1 << PINC2) | (1 << PINC3)), BIN);
-    change_detected = false;
-  }
+	if (change_detected)
+	{
+		// Software debounce of contact bounce
+		delay(100);
+		Serial.print("Switch changed: ");
+		// Read the DIP switch and send the new value over UART
+		Serial.println(PINC & ((1 << PINC0) | (1 << PINC1) | (1 << PINC2) | (1 << PINC3)), BIN);
+		change_detected = false;
+	}
 }
 
 ISR(PCINT1_vect)
 {
-  change_detected = true;
+	change_detected = true;
 }
diff --git a/Examples/motors/DC_motor_and_servo/DC_motor_and_servo.ino b/Examples/motors/DC_motor_and_servo/DC_motor_and_servo.ino
index 8f1c9a1..50cfa23 100644
--- a/Examples/motors/DC_motor_and_servo/DC_motor_and_servo.ino
+++ b/Examples/motors/DC_motor_and_servo/DC_motor_and_servo.ino
@@ -42,9 +42,8 @@ void loop()
 	digitalWrite(EN_L, HIGH);
 	*/
 
-	//aservo.write(90);
+	aservo.write(90);
 
-	/*
 	for (uint8_t i = 0; i < 4; i++)
 	{
 		forward(255);
@@ -54,7 +53,6 @@ void loop()
 	}
 	digitalWrite(EN_L, LOW);
 	digitalWrite(EN_R, LOW);
-	*/
 }
 
 void forward(uint8_t speed)
diff --git a/Examples/motors/DC_motor_speed_control/DC_motor_speed_control.ino b/Examples/motors/DC_motor_speed_control/DC_motor_speed_control.ino
index 086bee0..ac84a5a 100644
--- a/Examples/motors/DC_motor_speed_control/DC_motor_speed_control.ino
+++ b/Examples/motors/DC_motor_speed_control/DC_motor_speed_control.ino
@@ -5,7 +5,7 @@
 
 void setup()
 {
-    pinMode(DRV_IN1, OUTPUT);
+	pinMode(DRV_IN1, OUTPUT);
 	pinMode(DRV_IN2, OUTPUT);
 	pinMode(DRV_EN, OUTPUT);
 	pinMode(POT, INPUT);
diff --git a/Examples/motors/Stepper_demo/stepper_demo_delay/stepper_demo_delay.ino b/Examples/motors/Stepper_demo/stepper_demo_delay/stepper_demo_delay.ino
index b7ee2b0..0938633 100644
--- a/Examples/motors/Stepper_demo/stepper_demo_delay/stepper_demo_delay.ino
+++ b/Examples/motors/Stepper_demo/stepper_demo_delay/stepper_demo_delay.ino
@@ -1,10 +1,10 @@
 #include <inttypes.h>
 
-#define A1_PIN  9
-#define A2_PIN  8
-#define B1_PIN  11
-#define B2_PIN  10
-#define EN_PIN  12
+#define A1_PIN	9
+#define A2_PIN	8
+#define B1_PIN	11
+#define B2_PIN	10
+#define EN_PIN	12
 
 #define STEP_TIME 1000  // ms
 
@@ -15,10 +15,10 @@
 #define NUM_STEPS 4
 const uint8_t coil_current[NUM_STEPS][4] =
 {
-    {1, 0, 0, 1}, 
-    {1, 1, 0, 0},
-    {0, 1, 1, 0},
-    {0, 0, 1, 1}
+	{1, 0, 0, 1}, 
+	{1, 1, 0, 0},
+	{0, 1, 1, 0},
+	{0, 0, 1, 1}
 };
 #endif
 
@@ -26,14 +26,14 @@ const uint8_t coil_current[NUM_STEPS][4] =
 #define NUM_STEPS 8
 const uint8_t coil_current[NUM_STEPS][4] =
 {
-    {1, 0, 0, 1}, 
-    {1, 0, 0, 0},
-    {1, 1, 0, 0},
-    {0, 1, 0, 0},
-    {0, 1, 1, 0}, 
-    {0, 0, 1, 0},
-    {0, 0, 1, 1},
-    {0, 0, 0, 1}
+	{1, 0, 0, 1}, 
+	{1, 0, 0, 0},
+	{1, 1, 0, 0},
+	{0, 1, 0, 0},
+	{0, 1, 1, 0}, 
+	{0, 0, 1, 0},
+	{0, 0, 1, 1},
+	{0, 0, 0, 1}
 };
 #endif
 
@@ -41,28 +41,28 @@ const uint8_t stepper_pins[4] = {A2_PIN, A1_PIN, B1_PIN, B2_PIN};
 
 void setup()
 {
-    for (uint8_t i = 0; i < 4; i++)
-    {
-        pinMode(stepper_pins[i], OUTPUT);
-    }
-    pinMode(EN_PIN, OUTPUT);
-    digitalWrite(EN_PIN, HIGH);
+	for (uint8_t i = 0; i < 4; i++)
+	{
+		pinMode(stepper_pins[i], OUTPUT);
+	}
+	pinMode(EN_PIN, OUTPUT);
+	digitalWrite(EN_PIN, HIGH);
 }
 
 void loop()
 {
-    static uint8_t step = 0;
-    
-    for (uint8_t i = 0; i < 4; i++)
-    {
-        digitalWrite(stepper_pins[i], coil_current[step][i]);
-    }
-    
-    step++;
-    if (step >= NUM_STEPS)
-    {
-        step = 0;
-    }
-    
-    delay(STEP_TIME);
-}
+	static uint8_t step = 0;
+	
+	for (uint8_t i = 0; i < 4; i++)
+	{
+		digitalWrite(stepper_pins[i], coil_current[step][i]);
+	}
+	
+	step++;
+	if (step >= NUM_STEPS)
+	{
+		step = 0;
+	}
+	
+	delay(STEP_TIME);
+}
diff --git a/Examples/motors/Stepper_demo/stepper_demo_timer/stepper_demo_timer.ino b/Examples/motors/Stepper_demo/stepper_demo_timer/stepper_demo_timer.ino
index a4e8741..3626e64 100644
--- a/Examples/motors/Stepper_demo/stepper_demo_timer/stepper_demo_timer.ino
+++ b/Examples/motors/Stepper_demo/stepper_demo_timer/stepper_demo_timer.ino
@@ -1,10 +1,10 @@
 #include <inttypes.h>
 
-#define A1_PIN  9
-#define A2_PIN  8
-#define B1_PIN  11
-#define B2_PIN  10
-#define EN_PIN  12
+#define A1_PIN	9
+#define A2_PIN	8
+#define B1_PIN	11
+#define B2_PIN	10
+#define EN_PIN	12
 
 #define STEP_TIME 200  // ms, max 1000
 
@@ -15,10 +15,10 @@
 #define NUM_STEPS 4
 const uint8_t coil_current[NUM_STEPS][4] =
 {
-    {1, 0, 0, 1}, 
-    {1, 1, 0, 0},
-    {0, 1, 1, 0},
-    {0, 0, 1, 1}
+	{1, 0, 0, 1}, 
+	{1, 1, 0, 0},
+	{0, 1, 1, 0},
+	{0, 0, 1, 1}
 };
 #endif
 
@@ -26,14 +26,14 @@ const uint8_t coil_current[NUM_STEPS][4] =
 #define NUM_STEPS 8
 const uint8_t coil_current[NUM_STEPS][4] =
 {
-    {1, 0, 0, 1}, 
-    {1, 0, 0, 0},
-    {1, 1, 0, 0},
-    {0, 1, 0, 0},
-    {0, 1, 1, 0}, 
-    {0, 0, 1, 0},
-    {0, 0, 1, 1},
-    {0, 0, 0, 1}
+	{1, 0, 0, 1}, 
+	{1, 0, 0, 0},
+	{1, 1, 0, 0},
+	{0, 1, 0, 0},
+	{0, 1, 1, 0}, 
+	{0, 0, 1, 0},
+	{0, 0, 1, 1},
+	{0, 0, 0, 1}
 };
 #endif
 
@@ -44,8 +44,8 @@ const uint8_t stepper_pins[4] = {A2_PIN, A1_PIN, B1_PIN, B2_PIN};
 
 void setup()
 {
-    stepper_init();
-    timer1_init();
+	stepper_init();
+	timer1_init();
 }
 
 void loop()
@@ -53,47 +53,47 @@ void loop()
 
 void timer1_init(void)
 {
-    // Disable interrupts during timer configuration
-    noInterrupts();
-    // Select CTC mode (4) and set the prescaler to divide the clock by 256
-    // resulting in timer frequency of 62.5 kHz
-    TCCR1A = 0;
-    TCCR1B = (1 << WGM12) | (1 << CS12);
-    // Enable interrupt when reaching the maximum value (OCR1A)
-    TIMSK1 = (1 << OCIE1A);
-    // Set the timer period to 50 ms (50 * 62.5 = 3125)
-    OCR1A = (int) STEP_TIME * 62.5;
-    // Reset OC register B and the input capture register. They are not used
-    ICR1 = OCR1B = 0;
-    // Reset the counter register
-    TCNT1 = 0;
-    // Enable inerrupts
-    interrupts();
+	// Disable interrupts during timer configuration
+	noInterrupts();
+	// Select CTC mode (4) and set the prescaler to divide the clock by 256
+	// resulting in timer frequency of 62.5 kHz
+	TCCR1A = 0;
+	TCCR1B = (1 << WGM12) | (1 << CS12);
+	// Enable interrupt when reaching the maximum value (OCR1A)
+	TIMSK1 = (1 << OCIE1A);
+	// Set the timer period to 50 ms (50 * 62.5 = 3125)
+	OCR1A = (int) STEP_TIME * 62.5;
+	// Reset OC register B and the input capture register. They are not used
+	ICR1 = OCR1B = 0;
+	// Reset the counter register
+	TCNT1 = 0;
+	// Enable inerrupts
+	interrupts();
 }
 
 ISR(TIMER1_COMPA_vect)
 {
-    static volatile uint8_t step = 0;
-    
-    for (uint8_t i = 0; i < 4; i++)
-    {
-        digitalWrite(stepper_pins[i], coil_current[step][i]);
-    }
-    
-    step++;
-    if (step >= NUM_STEPS)
-    {
-        step = 0;
-    }
+	static volatile uint8_t step = 0;
+	
+	for (uint8_t i = 0; i < 4; i++)
+	{
+		digitalWrite(stepper_pins[i], coil_current[step][i]);
+	}
+	
+	step++;
+	if (step >= NUM_STEPS)
+	{
+		step = 0;
+	}
 }
 
 void stepper_init(void)
 {
-    for (uint8_t i = 0; i < 4; i++)
-    {
-        pinMode(stepper_pins[i], OUTPUT);
-    }
-    pinMode(EN_PIN, OUTPUT);
-    digitalWrite(EN_PIN, HIGH);
+	for (uint8_t i = 0; i < 4; i++)
+	{
+		pinMode(stepper_pins[i], OUTPUT);
+	}
+	pinMode(EN_PIN, OUTPUT);
+	digitalWrite(EN_PIN, HIGH);
 }
-
+
diff --git a/Examples/timer/Timer_1_COMPA_Toggle_pin_13_at_1Hz/Timer_1_COMPA_Toggle_pin_13_at_1Hz.ino b/Examples/timer/Timer_1_COMPA_Toggle_pin_13_at_1Hz/Timer_1_COMPA_Toggle_pin_13_at_1Hz.ino
index d603aa4..555df64 100644
--- a/Examples/timer/Timer_1_COMPA_Toggle_pin_13_at_1Hz/Timer_1_COMPA_Toggle_pin_13_at_1Hz.ino
+++ b/Examples/timer/Timer_1_COMPA_Toggle_pin_13_at_1Hz/Timer_1_COMPA_Toggle_pin_13_at_1Hz.ino
@@ -1,54 +1,63 @@
 /*
-   Timer 1 is set to generate Compare Match Interrupt with frequency 1Hz
-   The counter counts with frequency 16MHz/1024 = 15.625kHz
-   For 1s the counter will reach value of [15.625kHz*1s - 1] = [15625 - 1] = 15624
-   This value is set as compare value so that when counter reaches it
-   it will generate Interrupt with Period exactly 1s => Frequency 1Hz
-   LED attached on pin 13 is TOGGLED with this frequency of 1Hz so it stays 1s on and 1s off
+	 Timer 1 is set to generate Compare Match Interrupt with frequency 1Hz
+	 The counter counts with frequency 16MHz/1024 = 15.625kHz
+	 For 1s the counter will reach value of [15.625kHz*1s - 1] = [15625 - 1] = 15624
+	 This value is set as compare value so that when counter reaches it
+	 it will generate Interrupt with Period exactly 1s => Frequency 1Hz
+	 LED attached on pin 13 is TOGGLED with this frequency of 1Hz so it stays 1s on and 1s off
 */
 
 volatile boolean toggle = 0;
 
-void setup() {
-  pinMode(13, OUTPUT);      // Set pin 13 as output
-  noInterrupts(); //cli();  // Stop reception of interrupts
-
-  // Set Timer 1 Control registers and counter to 0
-  TCCR1A = 0;
-  TCCR1B = 0;
-  TIMSK1 = 0;
-  TCNT1  = 0;
-
-  // Set compare match value = Fclk_io / (Fout * Prescaler) - 1
-  OCR1A = 15624; // = (16MHz) / (1 * 1024) - 1
-  TIMSK1 |= (1 << OCIE1A); // Enable compare match interrupt
-
-  // Set Timer 1 Mode of operation to Clear Timer on Compare Match (CTC -> Mode 4)
-  TCCR1B |= (1 << WGM12); // Mode 4
-
-  // Set Timer 1 Clock prescaler and source so that the timer starts counting
-  TCCR1B |= (1 << CS12) | (1 << CS10); // Set prescaler to 1024 (=> enable the clock)
-
-  interrupts(); //sei();    // Allow reception of interrupts
+void setup()
+{
+	// Set pin 13 as output
+	pinMode(13, OUTPUT);
+	// Stop reception of interrupts
+	noInterrupts(); //cli();
+
+	// Set Timer 1 Control registers and counter to 0
+	TCCR1A = 0;
+	TCCR1B = 0;
+	TCNT1 = 0;
+	OCR1B = 0;
+	TIMSK1 = 0;
+	TIFR1 = 0xFF;
+
+	// Set compare match value = Fclk_io / (Fout * Prescaler) - 1
+	OCR1A = 15624; // = (16MHz) / (1 * 1024) - 1
+	// Enable compare match interrupt
+	TIMSK1 |= (1 << OCIE1A);
+
+	// Set Timer 1 Mode of operation to Clear Timer on Compare Match (CTC -> Mode 4)
+	TCCR1B |= (1 << WGM12); // Mode 4
+
+	// Set Timer 1 Clock prescaler and source so that the timer starts counting
+	TCCR1B |= (1 << CS12) | (1 << CS10); // Set prescaler to 1024 (=> enable the clock)
+
+	// Allow reception of interrupts
+	interrupts(); //sei();
 }
 
-void loop() {
-  // put your main code here, to run repeatedly:
-}
+void loop()
+{}
 
 /*
-  Timer1 Interrupt Service Routine (ISR)
-  Toggle pin 13 (LED) every 1s
-  Generates pulse wave of frequency 1Hz/2 = 0.5Hz
-  Takes two cycles for full wave - toggle high then after 1s toggle low after 1s repeat
+	Timer1 Interrupt Service Routine (ISR)
+	Toggle pin 13 (LED) every 1s
+	Generates pulse wave of frequency 1Hz/2 = 0.5Hz
+	Takes two cycles for full wave - toggle high then after 1s toggle low after 1s repeat
 */
-ISR(TIMER1_COMPA_vect) {
-  if (toggle == 1) {
-    digitalWrite(13, HIGH);
-    toggle = 0;
-  }
-  else {
-    digitalWrite(13, LOW);
-    toggle = 1;
-  }
+ISR(TIMER1_COMPA_vect)
+{
+	if (toggle == 1)
+	{
+		digitalWrite(13, HIGH);
+		toggle = 0;
+	}
+	else
+	{
+		digitalWrite(13, LOW);
+		toggle = 1;
+	}
 }
diff --git a/Examples/timer/Timer_1_COMPA_Toggle_pin_13_at_1Hz/tinkercad_link.txt b/Examples/timer/Timer_1_COMPA_Toggle_pin_13_at_1Hz/tinkercad_link.txt
new file mode 100644
index 0000000..f9e030b
--- /dev/null
+++ b/Examples/timer/Timer_1_COMPA_Toggle_pin_13_at_1Hz/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/5oJQkL6MRSs-timer1compatogglepin13at1hz
\ No newline at end of file
diff --git a/Examples/timer/Timer_1_COMPA_and_OVF_10kHz_PWM/Timer_1_COMPA_and_OVF_10kHz_PWM.ino b/Examples/timer/Timer_1_COMPA_and_OVF_10kHz_PWM/Timer_1_COMPA_and_OVF_10kHz_PWM.ino
index efa2118..f4d4632 100644
--- a/Examples/timer/Timer_1_COMPA_and_OVF_10kHz_PWM/Timer_1_COMPA_and_OVF_10kHz_PWM.ino
+++ b/Examples/timer/Timer_1_COMPA_and_OVF_10kHz_PWM/Timer_1_COMPA_and_OVF_10kHz_PWM.ino
@@ -1,62 +1,70 @@
-void setup() {
-  // Set pin 13 to output
-  pinMode(13, OUTPUT);
-  
-  // Stop reception of interrupts
-  noInterrupts(); //cli();
+void setup()
+{
+	// Set pin 13 to output
+	pinMode(13, OUTPUT);
+	
+	// Stop reception of interrupts
+	noInterrupts(); //cli();
 
-  // Set PB1 to be an output (Pin-9 Arduino UNO)
-  DDRB |= (1 << PB1);
-  
-  // Clear Timer/Counter Control Registers
-  TCCR1A = 0;
-  TCCR1B = 0;
-  TIMSK1 = 0;
-  
-  // Set non-inverting mode - Table 15-3 (page 108)
-  TCCR1A |= (1 << COM1A1);
-  TCCR1A |= (1 << COM1B1);
-  
-  // Set Fast-PWM Mode (Mode 14) - Table 15-5 (page 109)
-  TCCR1A |= (1 << WGM11);
-  TCCR1B |= (1 << WGM12);
-  TCCR1B |= (1 << WGM13);
-  
-  // Clear Timer 1 Counter
-  TCNT1  = 0;
-  
-  // Set PWM frequency/top value - Output PWM 10kHz
-  ICR1 = 199;   // Fclk_io / (Fout * Prescaler) - 1
-  OCR1A = 100;  // Output OC1A will be ON for [OCR1A/(ICR1+1)]% of the time -> 100/(199+1) = 50%
-  OCR1B = 50;
-  
-  // Enable compare match interrupt
-  TIMSK1 |= (1 << OCIE1A);
-  TIMSK1 |= (1 << OCIE1B);
-  TIMSK1 |= (1 << TOIE1);
-  
-  // Set prescaler to 8 and starts PWM
-  TCCR1B |= (1 << CS11);
+	// Set PB1 to be an output (Pin-9 Arduino UNO; OC1A)
+	DDRB |= (1 << PB1);
+	
+	// Clear Timer/Counter Control Registers
+	TCCR1A = 0;
+	TCCR1B = 0;
+	TIMSK1 = 0;
+	TIFR1 = 0xFF;
+	
+	// Set non-inverting mode - Table 15-3 (page 108)
+	TCCR1A |= (1 << COM1A1);
+	
+	// Set Fast-PWM Mode (Mode 14) - Table 15-5 (page 109)
+	TCCR1A |= (1 << WGM11);
+	TCCR1B |= (1 << WGM12);
+	TCCR1B |= (1 << WGM13);
+	
+	// Clear Timer 1 Counter
+	TCNT1  = 0;
+	
+	// Set PWM frequency/top value - Output PWM 10kHz
+	ICR1 = 199;		// Fclk_io / (Fout * Prescaler) - 1
+	OCR1A = 100;	// Output OC1A will be ON for [OCR1A/(ICR1+1)]% of the time -> 100/(199+1) = 50%
+	OCR1B = 50;
+	
+	// Enable compare match and overflow interrupts
+	TIMSK1 |= (1 << OCIE1A);
+	TIMSK1 |= (1 << OCIE1B);
+	TIMSK1 |= (1 << TOIE1);
+	
+	// Set prescaler to 8 and starts PWM
+	TCCR1B |= (1 << CS11);
 
-  // Enables interrupts
-  interrupts(); //sei();
+	// Enables interrupts
+	interrupts(); //sei();
 }
 
-void loop() {
-  // Empty
+void loop()
+{
+	// Empty
 }
 
-//Timer1 Compare Match Interrupt turns OFF pin 13 (LED)
-ISR(TIMER1_COMPA_vect) {
-  digitalWrite(13, LOW);
+// NOTE: TinkerCAD does not simulate timer interrupts correctly when
+// something is connected to the timer pins.
+
+// Not used, just demonstrating how to define it
+ISR(TIMER1_COMPA_vect)
+{
+	// Empty
 }
 
 //Timer1 Compare Match Interrupt turns OFF pin 13 (LED)
-ISR(TIMER1_COMPB_vect) {
-  //digitalWrite(13, LOW);
+ISR(TIMER1_COMPB_vect)
+{
+	digitalWrite(13, LOW);
 }
 
 //Timer1 Overflow Interrupt turns ON pin 13 (LED)
-ISR(TIMER1_OVF_vect) {
-  digitalWrite(13, HIGH);
+ISR(TIMER1_OVF_vect)
+{
+	digitalWrite(13, HIGH);
 }
diff --git a/Examples/timer/Timer_1_CompMatchA_Interrupt/Timer_1_CompMatchA_Interrupt.ino b/Examples/timer/Timer_1_CompMatchA_Interrupt/Timer_1_CompMatchA_Interrupt.ino
index 99a5bfc..ae59009 100644
--- a/Examples/timer/Timer_1_CompMatchA_Interrupt/Timer_1_CompMatchA_Interrupt.ino
+++ b/Examples/timer/Timer_1_CompMatchA_Interrupt/Timer_1_CompMatchA_Interrupt.ino
@@ -2,51 +2,48 @@ volatile uint16_t var = 0;
 
 void setup()
 {
-  noInterrupts(); // Забраняваме глобално прекъсванията //cli();
-  
-  // Зануляване на конфигурацията
-  TCCR1A = 0;
-  TCCR1B = 0;
-  TCCR1C = 0;
-  TCNT1 = 0;
-  OCR1A = 0;
-  OCR1B = 0;
-  ICR1 = 0;
-  TIMSK1 = 0;
-  TIFR1 = 0;
-  
-  // Режим на таймера - 14 Fast-PWM  
-  TCCR1A = TCCR1A | (1 << WGM11);
-  TCCR1B = TCCR1B | (1 << WGM12);
-  TCCR1B = TCCR1B | (1 << WGM13);
-  // TCCR1A |= (1 << WGM11);
-  // TCCR1B = TCCR1B | (1 << WGM12) | (1 << WGM13);
-  
-  // Режим на изводите - неинв.
-  TCCR1A = TCCR1A | (1 << COM1A1) | (1 << COM1B1);
-  
-  // Честота - 500Hz
-  // Избираме Prescaler = 1
-  ICR1 = 31999; // TOP = 16MHZ/(1*500Hz)-1 = 31999
-  
-  // Коеф. на запълване - 75%
-  OCR1A = 23999; // DUTY = TOP * 75% = 31999*75% = 23999
-  
-  // Прекъсване - CM A
-  TIMSK1 |= (1 << OCIE1A);
-  
-  // Пускане на таймера
-  TCCR1B |= (1 << CS10);
-  
-  interrupts(); // Разрешаваме глобално прекъсванията //sei();
+	// Забраняваме глобално прекъсванията
+	noInterrupts(); //cli();
+	
+	// Зануляване на конфигурацията
+	TCCR1A = 0;
+	TCCR1B = 0;
+	TCNT1 = 0;
+	OCR1B = 0;
+	TIMSK1 = 0;
+	TIFR1 = 0xFF;
+	
+	// Режим на таймера - 14 Fast-PWM
+	TCCR1A = TCCR1A | (1 << WGM11);
+	TCCR1B = TCCR1B | (1 << WGM12);
+	TCCR1B = TCCR1B | (1 << WGM13);
+	// TCCR1A |= (1 << WGM11);
+	// TCCR1B = TCCR1B | (1 << WGM12) | (1 << WGM13);
+	
+	// Режим на изводите - неинв.
+	TCCR1A = TCCR1A | (1 << COM1A1) | (1 << COM1B1);
+	
+	// Честота - 500Hz
+	// Избираме Prescaler = 1
+	ICR1 = 31999; // TOP = 16MHZ/(1*500Hz)-1 = 31999
+	
+	// Коеф. на запълване - 75%
+	OCR1A = 23999; // DUTY = TOP * 75% = 31999*75% = 23999
+	
+	// Прекъсване - CM A
+	TIMSK1 |= (1 << OCIE1A);
+	
+	// Пускане на таймера
+	TCCR1B |= (1 << CS10);
+	
+	 // Разрешаваме глобално прекъсванията
+	interrupts(); //sei();
 }
 
 ISR(TIMER1_COMPA_vect)
 {
-  var++;
+	var++;
 }
 
 void loop()
-{
-
-}
+{}
diff --git a/Examples/timer/Timer_1_CompMatchA_Interrupt/Timer_1_CompMatchA_Interrupt.png b/Examples/timer/Timer_1_CompMatchA_Interrupt/Timer_1_CompMatchA_Interrupt.png
new file mode 100644
index 0000000..bebc3db
Binary files /dev/null and b/Examples/timer/Timer_1_CompMatchA_Interrupt/Timer_1_CompMatchA_Interrupt.png differ
diff --git a/Examples/timer/Timer_1_CompMatchA_Interrupt/tinkercad_link.txt b/Examples/timer/Timer_1_CompMatchA_Interrupt/tinkercad_link.txt
new file mode 100644
index 0000000..7d54c01
--- /dev/null
+++ b/Examples/timer/Timer_1_CompMatchA_Interrupt/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/jzFefsghwuC-timer1compmatchainterrupt
\ No newline at end of file
diff --git a/Examples/timer/Timer_1_OC1A_Blink_pin_9_at_1Hz_with_external_enable/Timer_1_OC1A_Blink_pin_9_at_1Hz_with_external_enable.ino b/Examples/timer/Timer_1_OC1A_Blink_pin_9_at_1Hz_with_external_enable/Timer_1_OC1A_Blink_pin_9_at_1Hz_with_external_enable.ino
index e6bb3ef..7efe474 100644
--- a/Examples/timer/Timer_1_OC1A_Blink_pin_9_at_1Hz_with_external_enable/Timer_1_OC1A_Blink_pin_9_at_1Hz_with_external_enable.ino
+++ b/Examples/timer/Timer_1_OC1A_Blink_pin_9_at_1Hz_with_external_enable/Timer_1_OC1A_Blink_pin_9_at_1Hz_with_external_enable.ino
@@ -1,61 +1,66 @@
-#define BTN_PIN   2
+#define BTN_PIN		2
 
 volatile uint8_t timer_en = 0;
 
 void button_pressed_ISR(void);
 
+// NOTE: TinkerCAD has some issues when simulating timers, it's better to run this on real hardware
+
 void setup()
 {
-  // Stop reception of interrupts
-  noInterrupts(); //cli();
+	// Stop reception of interrupts
+	noInterrupts(); //cli();
 
-  pinMode(BTN_PIN, INPUT_PULLUP);
-  attachInterrupt(digitalPinToInterrupt(BTN_PIN), button_pressed_ISR, FALLING);
+	pinMode(BTN_PIN, INPUT_PULLUP);
+	attachInterrupt(digitalPinToInterrupt(BTN_PIN), button_pressed_ISR, FALLING);
 
-  // Set PB1 to be an output (Pin9 Arduino UNO)
-  DDRB |= (1 << PB1);
+	// Set PB1 to be an output (Pin9 Arduino UNO)
+	DDRB |= (1 << PB1);
 
-  // Clear Timer/Counter Control Registers
-  TCCR1A = 0;
-  TCCR1B = 0;
-  TIMSK1 = 0;
+	// Clear Timer/Counter Control Registers
+	TCCR1A = 0;
+	TCCR1B = 0;
+	OCR1B = 0;
+	TIMSK1 = 0;
+	TIFR1 = 0xFF;
 
-  // Set non-inverting mode - Table 15-3 (page 108)
-  TCCR1A |= (1 << COM1A1);
+	// Set non-inverting mode - Table 15-3 (page 108)
+	TCCR1A |= (1 << COM1A1);
 
-  // Set Fast-PWM Mode (Mode 14) - Table 15-5 (page 109)
-  TCCR1A |= (1 << WGM11);
-  TCCR1B |= (1 << WGM12);
-  TCCR1B |= (1 << WGM13);
+	// Set Fast-PWM Mode (Mode 14) - Table 15-5 (page 109)
+	TCCR1A |= (1 << WGM11);
+	TCCR1B |= (1 << WGM12);
+	TCCR1B |= (1 << WGM13);
 
-  // Clear Timer 1 Counter
-  TCNT1 = 0;
+	// Clear Timer 1 Counter
+	TCNT1 = 0;
 
-  // Set PWM frequency/top value - Output PWM 1Hz
-  ICR1 = 15625;
-  OCR1A = 10000;
+	// Set PWM frequency/top value - Output PWM 1Hz
+	ICR1 = 15625;
+	OCR1A = 10000;
 
-  // Enable interrupts
-  interrupts();
+	// Enable interrupts
+	interrupts();
 }
 
-void loop() {
-  // some useless code here
-  }
+void loop()
+{
+	// some useless code here
+}
 
 void button_pressed_ISR(void)
 {
-  if (timer_en)
-  {
-    timer_en = 0;
-    // Disable the timer by selecting "none" as the clock source
-    TCCR1B &= ~((1 << CS11) | (1 << CS12) | (1 << CS10));
-  }
-  else
-  {
-    timer_en = 1;
-    // Enable the timer
-    TCCR1B |= (1 << CS12) | (1 << CS10);
-    TCCR1B &= ~(1 << CS11);
-  }
+	if (timer_en)
+	{
+		timer_en = 0;
+		// Disable the timer by selecting "none" as the clock source
+		TCCR1B &= ~((1 << CS11) | (1 << CS12) | (1 << CS10));
+	}
+	else
+	{
+		timer_en = 1;
+		// Enable the timer
+		TCCR1B |= (1 << CS12) | (1 << CS10);
+		TCCR1B &= ~(1 << CS11);
+	}
 }
diff --git a/Examples/timer/Timer_DIP_switch_frequency/Timer_DIP_switch_frequency.ino b/Examples/timer/Timer_DIP_switch_frequency/Timer_DIP_switch_frequency.ino
index 4f1e4b7..a421d8e 100644
--- a/Examples/timer/Timer_DIP_switch_frequency/Timer_DIP_switch_frequency.ino
+++ b/Examples/timer/Timer_DIP_switch_frequency/Timer_DIP_switch_frequency.ino
@@ -8,66 +8,70 @@
 
 void button_ISR(void);
 
-volatile bool led_flag = false;
-
 void setup()
 {
-  	pinMode(DIP_SW_0, INPUT_PULLUP);
-  	pinMode(DIP_SW_1, INPUT_PULLUP);
-  	pinMode(DIP_SW_2, INPUT_PULLUP);
-  	pinMode(DIP_SW_3, INPUT_PULLUP);
-  	pinMode(BUTTON, INPUT_PULLUP);
-  	pinMode(LED, OUTPUT);
-  	digitalWrite(LED, LOW);
+	pinMode(DIP_SW_0, INPUT_PULLUP);
+	pinMode(DIP_SW_1, INPUT_PULLUP);
+	pinMode(DIP_SW_2, INPUT_PULLUP);
+	pinMode(DIP_SW_3, INPUT_PULLUP);
+	pinMode(BUTTON, INPUT_PULLUP);
+	pinMode(LED, OUTPUT);
+	digitalWrite(LED, LOW);
 
-  	attachInterrupt(digitalPinToInterrupt(BUTTON), button_ISR, FALLING);
+	attachInterrupt(digitalPinToInterrupt(BUTTON), button_ISR, FALLING);
 
-  	// Disable interrupts during timer configuration
-  	cli();
+	// Disable interrupts during timer configuration
+	cli();
 
-  	// Zero the control and counter registers
-  	TCCR1A = TCCR1B = TIMSK1 = 0;
-  	TCNT1 = 0;
+	// Zero the control and counter registers
+	TCCR1A = TCCR1B = TIMSK1 = OCR1B = 0;
+	TCNT1 = 0;
+	TIFR1 = 0;
 
-  	// Select mode 15 (Fast PWM, TOP = OCR1A)
-  	TCCR1A |= (1 << WGM10);
-  	TCCR1A |= (1 << WGM11);
-  	TCCR1B |= (1 << WGM12);
-  	TCCR1B |= (1 << WGM13);
+	// Select mode 15 (Fast PWM, TOP = OCR1A)
+	TCCR1A |= (1 << WGM10);
+	TCCR1A |= (1 << WGM11);
+	TCCR1B |= (1 << WGM12);
+	TCCR1B |= (1 << WGM13);
 
-  	// Set max counter value (frequency)
-  	OCR1A = 7811;
+	// Set max counter value (frequency)
+	OCR1A = 7811;
 
-  	// Enable timer overflow interrupt
-  	TIMSK1 |= (1 << TOIE1);
+	// Enable timer overflow interrupt
+	TIMSK1 |= (1 << TOIE1);
 
-  	// Set prescaler to 1024
-  	TCCR1B |= (1 << CS10) | (1 << CS12);
+	// Set prescaler to 1024
+	TCCR1B |= (1 << CS10) | (1 << CS12);
 
-  	// Enable interrupts
-  	sei();
+	// Enable interrupts
+	sei();
 
-  	Serial.begin(9600);
+	Serial.begin(9600);
 }
 
 void loop()
 {
-  Serial.println(OCR1A);
-  delay(1000);
+	Serial.println(OCR1A);
+	delay(1000);
 }
 
 ISR(TIMER1_OVF_vect)
 {
-  	digitalWrite(LED, led_flag);
-  	led_flag = !led_flag;
+	static volatile bool led_flag = false;
+	
+	digitalWrite(LED, led_flag);
+	led_flag = !led_flag;
 }
 
 void button_ISR(void)
 {
-  	uint8_t f = ~PINB & 0x0F;
-
-  	if (f)
-    {
-      	OCR1A = 16000000 / (1024 * f) - 1;
-    }
+	// Read the DIP switch
+	uint8_t f = ~PINB & 0x0F;
+
+	if (f)
+	{
+		// Convert frequency to OCR1A value
+		OCR1A = 16000000 / (1024 * f) - 1;
+	}
+	// Instead of ignoring the case f == 0, you could also disable the timer
 }
diff --git a/Examples/timer/Timer_PWM_10kHz_D25/Timer_PWM_10kHz_D25.ino b/Examples/timer/Timer_PWM_10kHz_D25/Timer_PWM_10kHz_D25.ino
index 636d6cc..3209246 100644
--- a/Examples/timer/Timer_PWM_10kHz_D25/Timer_PWM_10kHz_D25.ino
+++ b/Examples/timer/Timer_PWM_10kHz_D25/Timer_PWM_10kHz_D25.ino
@@ -1,23 +1,26 @@
 // Timer 1 - Mode 14
 // f = 10kHz ; δ = 25%
 
-void setup() {
+void setup()
+{
+	// Configure the OC1A pin as an output
+	DDRB |= (1 << PB1);
 
-  DDRB |= (1 << PB1);
-
-  // Zero
-  TCCR1A = 0;
-  TCCR1B = 0;
-
-  // Set stuff
-  TCCR1A |= (1 << WGM11) | (1 << COM1A1);
-  TCCR1B |= (1 << WGM13) | (1 << WGM12);
-  ICR1 = 1599; // Period (TOP)
-  OCR1A = 400; // Duty cycle
-  TCCR1B |= (1 << CS10);
+	// Zero
+	TCCR1A = 0;
+	TCCR1B = 0;
+	TIMSK1 = 0;
+	OCR1B = 0;
+	TIFR1 = 0xFF;
 
+	// Set timer mode and output mode
+	TCCR1A |= (1 << WGM11) | (1 << COM1A1);
+	TCCR1B |= (1 << WGM13) | (1 << WGM12);
+	ICR1 = 1599; // Period (TOP)
+	OCR1A = 400; // Duty cycle
+	// Activate the timer by selecting the clock source
+	TCCR1B |= (1 << CS10);
 }
 
-void loop() {
-  
-}
+void loop()
+{}
diff --git a/Examples/timer/Timer_PWM_10kHz_D25/Timer_PWM_10kHz_D25.png b/Examples/timer/Timer_PWM_10kHz_D25/Timer_PWM_10kHz_D25.png
new file mode 100644
index 0000000..36e3627
Binary files /dev/null and b/Examples/timer/Timer_PWM_10kHz_D25/Timer_PWM_10kHz_D25.png differ
diff --git a/Examples/timer/Timer_PWM_10kHz_D25/tinkercad_link.txt b/Examples/timer/Timer_PWM_10kHz_D25/tinkercad_link.txt
new file mode 100644
index 0000000..3ba3ff2
--- /dev/null
+++ b/Examples/timer/Timer_PWM_10kHz_D25/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/7nyoEOqUo4Y-timerpwm10khzd25
\ No newline at end of file
diff --git a/Examples/timer/Timer_PWM_10kHz_D50/Timer_PWM_10kHz_D50.ino b/Examples/timer/Timer_PWM_10kHz_D50/Timer_PWM_10kHz_D50.ino
index 6b60731..fde4219 100644
--- a/Examples/timer/Timer_PWM_10kHz_D50/Timer_PWM_10kHz_D50.ino
+++ b/Examples/timer/Timer_PWM_10kHz_D50/Timer_PWM_10kHz_D50.ino
@@ -1,23 +1,26 @@
 // Timer 1 - Mode 14
 // f = 10kHz ; δ = 50%
 
-void setup() {
+void setup()
+{
+	// Configure the OC1A pin as an output
+	DDRB |= (1 << PB1);
 
-  DDRB |= (1 << PB1);
-
-  // Zero
-  TCCR1A = 0;
-  TCCR1B = 0;
-
-  // Set stuff
-  TCCR1A |= (1 << WGM11) | (1 << COM1A1);
-  TCCR1B |= (1 << WGM13) | (1 << WGM12);
-  ICR1 = 1599; // Period (TOP)
-  OCR1A = 800; // Duty cycle
-  TCCR1B |= (1 << CS10);
+	// Zero
+	TCCR1A = 0;
+	TCCR1B = 0;
+	TIMSK1 = 0;
+	OCR1B = 0;
+	TIFR1 = 0xFF;
 
+	// Set timer mode and output mode
+	TCCR1A |= (1 << WGM11) | (1 << COM1A1);
+	TCCR1B |= (1 << WGM13) | (1 << WGM12);
+	ICR1 = 1599; // Period (TOP)
+	OCR1A = 800; // Duty cycle
+	// Activate the timer by selecting the clock source
+	TCCR1B |= (1 << CS10);
 }
 
-void loop() {
-  
-}
+void loop()
+{}
diff --git a/Examples/timer/Timer_PWM_10kHz_D50/Timer_PWM_10kHz_D50.png b/Examples/timer/Timer_PWM_10kHz_D50/Timer_PWM_10kHz_D50.png
new file mode 100644
index 0000000..36e3627
Binary files /dev/null and b/Examples/timer/Timer_PWM_10kHz_D50/Timer_PWM_10kHz_D50.png differ
diff --git a/Examples/timer/Timer_PWM_10kHz_D50/tinkercad_link.txt b/Examples/timer/Timer_PWM_10kHz_D50/tinkercad_link.txt
new file mode 100644
index 0000000..2c57a57
--- /dev/null
+++ b/Examples/timer/Timer_PWM_10kHz_D50/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/9pjZJJ6DwZ5-timerpwm10khzd50
\ No newline at end of file
diff --git a/Examples/timer/Timer_PWM_2Hz_D25/Timer_PWM_2Hz_D25.ino b/Examples/timer/Timer_PWM_2Hz_D25/Timer_PWM_2Hz_D25.ino
index ca156da..b14530a 100644
--- a/Examples/timer/Timer_PWM_2Hz_D25/Timer_PWM_2Hz_D25.ino
+++ b/Examples/timer/Timer_PWM_2Hz_D25/Timer_PWM_2Hz_D25.ino
@@ -1,23 +1,26 @@
 // Timer 1 - Mode 14
 // f = 2Hz ; δ = 25%
 
-void setup() {
+void setup()
+{
+	// Configure the OC1A pin as an output
+	DDRB |= (1 << PB1);
 
-  DDRB |= (1 << PB1);
+	// Zero
+	TCCR1A = 0;
+	TCCR1B = 0;
+	TIMSK1 = 0;
+	OCR1B = 0;
+	TIFR1 = 0xFF;
 
-  // Zero
-  TCCR1A = 0;
-  TCCR1B = 0;
-
-  // Set stuff
-  TCCR1A |= (1 << WGM11) | (1 << COM1A1);
-  TCCR1B |= (1 << WGM13) | (1 << WGM12);
-  ICR1 = 31249; // Period (TOP)
-  OCR1A = 7812; // Duty cycle
-  TCCR1B |= (1 << CS12);
-    
+	// Set timer mode and output mode
+	TCCR1A |= (1 << WGM11) | (1 << COM1A1);
+	TCCR1B |= (1 << WGM13) | (1 << WGM12);
+	ICR1 = 31249; // Period (TOP)
+	OCR1A = 7812; // Duty cycle
+	// Activate the timer by selecting the clock source
+	TCCR1B |= (1 << CS12);
 }
 
-void loop() {
-  
-}
+void loop()
+{}
diff --git a/Examples/timer/Timer_PWM_2Hz_D25/Timer_PWM_2Hz_D25.png b/Examples/timer/Timer_PWM_2Hz_D25/Timer_PWM_2Hz_D25.png
new file mode 100644
index 0000000..36e3627
Binary files /dev/null and b/Examples/timer/Timer_PWM_2Hz_D25/Timer_PWM_2Hz_D25.png differ
diff --git a/Examples/timer/Timer_PWM_2Hz_D25/tinkercad_link.txt b/Examples/timer/Timer_PWM_2Hz_D25/tinkercad_link.txt
new file mode 100644
index 0000000..449659b
--- /dev/null
+++ b/Examples/timer/Timer_PWM_2Hz_D25/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/iQ6EdHcVRLC-timerpwm2hzd25
\ No newline at end of file
diff --git a/Examples/timer/Timer_PWM_2Hz_D80/Timer_PWM_2Hz_D80.ino b/Examples/timer/Timer_PWM_2Hz_D80/Timer_PWM_2Hz_D80.ino
index 4698a58..0d8eb61 100644
--- a/Examples/timer/Timer_PWM_2Hz_D80/Timer_PWM_2Hz_D80.ino
+++ b/Examples/timer/Timer_PWM_2Hz_D80/Timer_PWM_2Hz_D80.ino
@@ -1,23 +1,26 @@
 // Timer 1 - Mode 14
 // f = 2Hz ; δ = 80%
 
-void setup() {
+void setup()
+{
+	// Configure the OC1A pin as an output
+	DDRB |= (1 << PB1);
 
-  DDRB |= (1 << PB1);
+	// Zero
+	TCCR1A = 0;
+	TCCR1B = 0;
+	TIMSK1 = 0;
+	OCR1B = 0;
+	TIFR1 = 0xFF;
 
-  // Zero
-  TCCR1A = 0;
-  TCCR1B = 0;
-
-  // Set stuff
-  TCCR1A |= (1 << WGM11) | (1 << COM1A1);
-  TCCR1B |= (1 << WGM13) | (1 << WGM12);
-  ICR1 = 31249; // Period (TOP)
-  OCR1A = 25000; // Duty cycle
-  TCCR1B |= (1 << CS12);
-    
+	// Set timer mode and output mode
+	TCCR1A |= (1 << WGM11) | (1 << COM1A1);
+	TCCR1B |= (1 << WGM13) | (1 << WGM12);
+	ICR1 = 31249; // Period (TOP)
+	OCR1A = 25000; // Duty cycle
+	// Activate the timer by selecting the clock source
+	TCCR1B |= (1 << CS12);
 }
 
-void loop() {
-  
-}
+void loop()
+{}
diff --git a/Examples/timer/Timer_PWM_2Hz_D80/Timer_PWM_2Hz_D80.png b/Examples/timer/Timer_PWM_2Hz_D80/Timer_PWM_2Hz_D80.png
new file mode 100644
index 0000000..36e3627
Binary files /dev/null and b/Examples/timer/Timer_PWM_2Hz_D80/Timer_PWM_2Hz_D80.png differ
diff --git a/Examples/timer/Timer_PWM_2Hz_D80/tinkercad_link.txt b/Examples/timer/Timer_PWM_2Hz_D80/tinkercad_link.txt
new file mode 100644
index 0000000..1bc8af0
--- /dev/null
+++ b/Examples/timer/Timer_PWM_2Hz_D80/tinkercad_link.txt
@@ -0,0 +1 @@
+https://www.tinkercad.com/things/c215UduVTvv-timerpwm2hzd80
\ No newline at end of file