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Figure 4. HC-12 wireless transceiver module Figure 3. Ardunio nano

Figure 4 HC-12 wireless transceiver module Figure 3. Ardunio nano

Related Figures (8)

Figure 1. Overall system components _— The hardware components of the system can be listed in: i) Transmitter Unit: this consists of (an HC- 12 wireless transceiver, Arduino nano, and direct current (DC) power supply (5V)); ii) Receiver unit: which consists of (an HC-12 wireless transceiver, Arduino UNO, L298N motor driver); iii) Robot car chassis: which contains (a DC motor reducer x2 and Lithium battery x2). Figure 2 shows a block diagram of the transmitter unit, and the systems components are illustrated.
Figure 1. Overall system components _— The hardware components of the system can be listed in: i) Transmitter Unit: this consists of (an HC- 12 wireless transceiver, Arduino nano, and direct current (DC) power supply (5V)); ii) Receiver unit: which consists of (an HC-12 wireless transceiver, Arduino UNO, L298N motor driver); iii) Robot car chassis: which contains (a DC motor reducer x2 and Lithium battery x2). Figure 2 shows a block diagram of the transmitter unit, and the systems components are illustrated.
Automatic control speed of vehicles near schools and colleges (Zahraa Niema Kamal)
Automatic control speed of vehicles near schools and colleges (Zahraa Niema Kamal)
Figure 7. Robot car chassis
Figure 7. Robot car chassis
Figure 6. L298N motor driver module
Figure 6. L298N motor driver module
Figure 9. Lithium battery x2
Figure 9. Lithium battery x2
Figure 10. The relation between distance and speed of motors When a car with two engines is running, the engines run at a maximum rotational speed of 255 and when the sensor is triggered, it enters the car into the restricted area. The radio frequency transmitter sends out a radio frequency signal that contains information that indicates how fast the vehicle can be driven. Then the HC-12 receiver received the information and gave it to the Arduino controller which is used to control the speed of the motors. The analog signals will be converted to digital so that only the microcontroller will be able to process the signal. The transmitter signal is compared and based on the programming of the Arduino controller, it controls the motor speed and reduces it to 100 rotational speed. The relation between distance and speed of motors demonsterated in Figure 10.
Figure 10. The relation between distance and speed of motors When a car with two engines is running, the engines run at a maximum rotational speed of 255 and when the sensor is triggered, it enters the car into the restricted area. The radio frequency transmitter sends out a radio frequency signal that contains information that indicates how fast the vehicle can be driven. Then the HC-12 receiver received the information and gave it to the Arduino controller which is used to control the speed of the motors. The analog signals will be converted to digital so that only the microcontroller will be able to process the signal. The transmitter signal is compared and based on the programming of the Arduino controller, it controls the motor speed and reduces it to 100 rotational speed. The relation between distance and speed of motors demonsterated in Figure 10.
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