Final answer:
To control the gate opening based on the input voltage, you can use a microcontroller like the Atmega16. Design a circuit connecting the servomotor, input voltage range, and LED. Write an AVR program to read the input voltage, map it to the gate position, blink the LED at 1V changes, and control the servomotor.
Step-by-step explanation:
Circuit Design:
To design the circuit that controls the gate opening based on the input voltage, we can use a microcontroller such as the Atmega16. Here is the circuit diagram:
- Connect PORTA1 of the Atmega16 to the servomotor to control the gate opening.
- Connect PORTA3 to a voltage divider circuit consisting of resistors to read the input voltage range from 0-5V.
- Connect a green LED to a GPIO pin of the Atmega16. This LED will blink ON for 500mSec at each 1V change in input voltage.
AVR Program:
Now, let's write the AVR program to implement the system:
- Set up the AVR microcontroller by configuring the necessary registers and pins for input/output.
- Read the input voltage from PORTA3 using the Analog-to-Digital Converter (ADC) feature of the Atmega16.
- Map the input voltage to the gate position. For example, if the input voltage is 0V, the gate is fully closed, and if the input voltage is 5V, the gate is fully open.
- Check if there is a 1V change in the input voltage by comparing the current and previous voltage readings.
- If there is a 1V change, blink the green LED ON for 500mSec.
- Move the gate by controlling the servomotor connected to PORTA1 based on the updated gate position.
- Repeat the above steps in a loop.