To generate a Knight Rider pattern on the 8 LEDs on the Explorer 16 development board, you can use a timer with a count of 200. Here are the calculations for the current, voltage, resistance, time, and frequency:
Current:
Given that the current is 0.00033A (or 330μA), this is the maximum current that each LED should draw.
Voltage:
The voltage used is +3.3V, which is the supply voltage for the LEDs. Each LED will have this voltage across it.
Resistance:
A resistance of 10kΩ (or 10,000Ω) is used to limit the current flow through each LED. This resistor is known as a current-limiting resistor.
Time:
The count of 200 indicates the number of timer ticks required to complete one iteration of the Knight Rider pattern. The actual time it takes will depend on the frequency of the timer.
Frequency:
To calculate the frequency, you need to know the period (time taken for one iteration) and the count value. Let's assume the timer has a frequency of 1 MHz (or 1,000,000 Hz) and a count of 200. The period T can be calculated as:
T = count / frequency
T = 200 / (1,000,000)
T = 0.0002 seconds
The frequency f is the inverse of the period:
f = 1 / T
f = 1 / 0.0002
f = 5000 Hz
Therefore, the timer used operates at a frequency of 5000 Hz, or 5 kHz.
These calculations can guide you in configuring the timer and setting up the pattern for the 8 LEDs on the Explorer 16 development board.
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
In the program, the timer I used the was: Count = 200
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1 answer