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RX63N LED Figure as Entertece Change the LEDs intensity by changing the duty cyde We want to use Timer TPUB and PWM mode
Posted: Mon May 09, 2022 6:10 am
by answerhappygod
- Rx63n Led Figure As Entertece Change The Leds Intensity By Changing The Duty Cyde We Want To Use Timer Tpub And Pwm Mode 1 (47.89 KiB) Viewed 25 times
RX63N LED Figure as Entertece Change the LEDs intensity by changing the duty cyde We want to use Timer TPUB and PWM mode 1. 1. Ifydd is 3.5V and the LED has a voltage drop of 1.3V Calculate the resistor R required to have a current of 15mA (5 marks) 2. Explain what would be the reason to use a transistor to drive the LED? (5 marks) 3. Give the 2 possible microcontroller pins that can be used to connect to the transistor's base (5 marks) 4. Write the initialisation of the time to generate a 200Hz square wave with a 25% duty cycle. List all assumptions. Include the port initialisation (15 marks) 5. Explain why we might be using a frequency as high as 200Hz to control the LED (3 marks) (33 marks)