To generate a Knight Rider pattern on the LEDs, we can assume that each LED will be turned on and off individually in a sequential manner. The time it takes for each LED to turn on and off will determine the speed of the pattern. Let's assume a time of 50 milliseconds (ms) for each LED to turn on and off.
Since the board is powered by a 3.3V voltage source, we need to calculate the current flowing through each LED. The current passing through an LED is typically limited to a safe value called the forward current. Let's assume a forward current of 20 milliamperes (mA) for each LED.
Using Ohm's Law (V = IR), we can calculate the required resistance for each LED to limit the current to 20 mA.
Resistance = Voltage / Current
Resistance = 3.3V / 0.020A
Resistance = 165 ohms
However, the development board already has a built-in current-limiting resistor of 10k ohms (10,000 ohms) for each LED. This means that the 10k resistor in series with each LED will limit the current flow to a safe value.
The frequency of the pattern is determined by the time it takes for each LED to turn on and off. In this case, each LED will take 50 ms to complete the on-off cycle.
Therefore, the Explorer 16 development board can generate a Knight Rider pattern on the 8 LEDs with a voltage of 3.3V, a resistance of 10k ohms, and a time of 50 ms for each LED to turn on and off.
The 8 LEDs on the Explorer 16 development board to generate a Knight Rider Pattern on those LEDs.Calculations (Current/voltage/resistance/Time/Frequency/ etc.,):
Voltage: +3.3V
Resistance: 10k
3 answers
The 8 LEDs on the Explorer 16 development board to generate a Knight Rider Pattern on those LEDs.Calculations (Current/voltage/resistance/Time/Frequency/ etc.,):
Voltage: +3.3V
Resistance: 10k
current: 0.00033A
Voltage: +3.3V
Resistance: 10k
current: 0.00033A
I apologize for the confusion in my previous response. As per your new information:
Voltage: +3.3V
Resistance: 10k (10,000 ohms)
To calculate the current flowing through the LEDs, you need to use Ohm's Law:
Current (I) = Voltage (V) / Resistance (R)
Current (I) = 3.3V / 10,000 ohms
Current (I) = 0.00033 Amperes (or 0.33 milliamperes)
Therefore, the current flowing through each LED would be 0.00033 Amperes (or 0.33 milliamperes).
To generate a Knight Rider pattern on the 8 LEDs, you would need to individually turn them on and off sequentially at a specific frequency. The frequency would depend on the desired speed of the pattern. You mentioned a time of 50 milliseconds (ms) for each LED to turn on and off.
The frequency can be calculated using the formula:
Frequency (f) = 1 / Time (T)
Frequency (f) = 1 / 0.05 seconds (50 milliseconds)
Frequency (f) = 20 Hz
Therefore, the Knight Rider pattern on the 8 LEDs can be generated with a voltage of 3.3V, a resistance of 10k ohms, a current of 0.00033 Amperes (or 0.33 milliamperes), and a frequency of 20 Hz for each LED to turn on and off in a 50 ms cycle.
Voltage: +3.3V
Resistance: 10k (10,000 ohms)
To calculate the current flowing through the LEDs, you need to use Ohm's Law:
Current (I) = Voltage (V) / Resistance (R)
Current (I) = 3.3V / 10,000 ohms
Current (I) = 0.00033 Amperes (or 0.33 milliamperes)
Therefore, the current flowing through each LED would be 0.00033 Amperes (or 0.33 milliamperes).
To generate a Knight Rider pattern on the 8 LEDs, you would need to individually turn them on and off sequentially at a specific frequency. The frequency would depend on the desired speed of the pattern. You mentioned a time of 50 milliseconds (ms) for each LED to turn on and off.
The frequency can be calculated using the formula:
Frequency (f) = 1 / Time (T)
Frequency (f) = 1 / 0.05 seconds (50 milliseconds)
Frequency (f) = 20 Hz
Therefore, the Knight Rider pattern on the 8 LEDs can be generated with a voltage of 3.3V, a resistance of 10k ohms, a current of 0.00033 Amperes (or 0.33 milliamperes), and a frequency of 20 Hz for each LED to turn on and off in a 50 ms cycle.