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@@ -27,9 +27,12 @@ Based on this constraint, the RC car can only move front, back, and turn/rotate
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.. admonition:: What is PWM?
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PWM (Pulse Width Modulation) is a technique used to simulate analog voltage levels using digital signals. It works by rapidly switching a
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digital pin between HIGH (on) and LOW (off) states at a fixed frequency. The duty cycle—the percentage of time the signal is HIGH in one
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cycle—determines the effective voltage delivered to a device.
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**PWM** (Pulse Width Modulation) is a technique used to simulate analog voltage levels using ddiscrete igital signals. It works by rapidly switching a
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digital pin between HIGH (on) and LOW (off) states at a fixed frequency (often, at base frequency of 5 kHz). The duty cycle—the percentage of time the signal is HIGH in one
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cycle determines the effective voltage delivered to a device.
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A higher duty cycle increases the motor speed, and a lower duty cycle decreases the motor speed. This allows for fine-grained speed control
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without needing analog voltage regulators.
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A pair of PWM channels are required for defining rotation speed and direction of the DC motors on each side.
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In particular, **GPIO6** and **GPIO5** provide PWM to the left- and right- side DC motors to rotate in a **clockwise** direction.
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@@ -52,9 +52,11 @@ Consequently, only four PWM channels are sufficient for controlling the directio
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Based on this constraint, the RC car can only move front, back, and turn/rotate left and right. Any other movements are not possible (i.e. diagonal or sideways).</p>
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<div class="admonition-what-is-pwm admonition">
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<p class="admonition-title">What is PWM?</p>
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<p>PWM (Pulse Width Modulation) is a technique used to simulate analog voltage levels using digital signals. It works by rapidly switching a
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digital pin between HIGH (on) and LOW (off) states at a fixed frequency. The duty cycle—the percentage of time the signal is HIGH in one
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cycle—determines the effective voltage delivered to a device.</p>
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<p><strong>PWM</strong> (Pulse Width Modulation) is a technique used to simulate analog voltage levels using ddiscrete igital signals. It works by rapidly switching a
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digital pin between HIGH (on) and LOW (off) states at a fixed frequency (often, at base frequency of 5 kHz). The duty cycle—the percentage of time the signal is HIGH in one
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cycle determines the effective voltage delivered to a device.</p>
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<p>A higher duty cycle increases the motor speed, and a lower duty cycle decreases the motor speed. This allows for fine-grained speed control
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without needing analog voltage regulators.</p>
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</div>
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<p>A pair of PWM channels are required for defining rotation speed and direction of the DC motors on each side.
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In particular, <strong>GPIO6</strong> and <strong>GPIO5</strong> provide PWM to the left- and right- side DC motors to rotate in a <strong>clockwise</strong> direction.
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@@ -1,4 +1,4 @@
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# Sphinx build info version 1
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# This file records the configuration used when building these files. When it is not found, a full rebuild will be done.
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config: bef41d84121e5e50ab7da6d5c687e1c6
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config: 4cc9ee0f9f77e14cf8c7713a4bf8af68
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tags: 62a1e7829a13fc7881b6498c52484ec0
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@@ -330,9 +330,16 @@ Based on this constraint, the RC car can only move front, back, and turn/rotate
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What is PWM?
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</p>
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<p>
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PWM (Pulse Width Modulation) is a technique used to simulate analog voltage levels using digital signals. It works by rapidly switching a
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digital pin between HIGH (on) and LOW (off) states at a fixed frequency. The duty cycle—the percentage of time the signal is HIGH in one
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cycle—determines the effective voltage delivered to a device.
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<strong>
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PWM
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</strong>
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(Pulse Width Modulation) is a technique used to simulate analog voltage levels using ddiscrete igital signals. It works by rapidly switching a
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digital pin between HIGH (on) and LOW (off) states at a fixed frequency (often, at base frequency of 5 kHz). The duty cycle—the percentage of time the signal is HIGH in one
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cycle determines the effective voltage delivered to a device.
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</p>
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<p>
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A higher duty cycle increases the motor speed, and a lower duty cycle decreases the motor speed. This allows for fine-grained speed control
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without needing analog voltage regulators.
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</p>
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</div>
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<p>
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