Circuit Documentation
Summary of the Circuit
This circuit is designed around an Arduino UNO microcontroller, which serves as the central processing unit for controlling various peripherals including servomotors, LEDs, a buzzer, an HC-SR04 ultrasonic sensor, and an RFID-RC522 module. The circuit appears to be a multifunctional system capable of interacting with the environment through the ultrasonic sensor, providing visual indicators via LEDs, moving parts with servomotors, reading RFID tags, and giving audio feedback with a buzzer.
Component List
Servomotor SG90
- Description: A small and lightweight servo used for precise control of motion.
- Pins: SIG (Signal), VCC (Power), GND (Ground)
LED: Two Pin (green)
- Description: A green light-emitting diode used as an indicator light.
- Pins: cathode (Negative), anode (Positive)
LED: Two Pin (red)
- Description: A red light-emitting diode used as an indicator light.
- Pins: cathode (Negative), anode (Positive)
HC-SR04 Ultrasonic Sensor
- Description: A sensor that measures distance by emitting ultrasonic waves and measuring the time taken for the echo to return.
- Pins: VCC (Power), TRIG (Trigger), ECHO (Echo), GND (Ground)
RFID-RC522
- Description: An RFID reader/writer module for contactless communication using radio frequency.
- Pins: SDA (Serial Data), SCK (Serial Clock), MOSI (Master Out Slave In), MISO (Master In Slave Out), IRQ (Interrupt Request), GND (Ground), RST (Reset), 3.3V (Power)
Arduino UNO
- Description: A microcontroller board based on the ATmega328P, widely used for building digital devices and interactive objects.
- Pins: Various digital and analog I/O pins, power supply pins, and communication interfaces.
Buzzer
- Description: An audio signaling device that can be used to create beeps or alerts.
- Pins: PIN (Signal), GND (Ground)
Wiring Details
Servomotor SG90
- Signal: Connected to Arduino UNO digital pins (D5, D6)
- Power (VCC): Connected to Arduino UNO 5V
- Ground (GND): Connected to Arduino UNO GND
LED: Two Pin (green and red)
- Cathode (Negative): Connected to Arduino UNO GND
- Anode (Positive): Requires connection to Arduino UNO digital pins through current-limiting resistors (not specified in the net list)
HC-SR04 Ultrasonic Sensor
- VCC: Connected to Arduino UNO 5V
- TRIG: Connected to Arduino UNO digital pin D8
- ECHO: Connected to Arduino UNO digital pin D7
- GND: Connected to Arduino UNO GND
RFID-RC522
- SDA: Connected to Arduino UNO digital pin D10
- SCK: Connected to Arduino UNO digital pin D13
- MOSI: Connected to Arduino UNO digital pin D11
- MISO: Connected to Arduino UNO digital pin D12
- IRQ: Not connected
- GND: Connected to Arduino UNO GND
- RST: Connected to Arduino UNO digital pin D9
- 3.3V: Connected to Arduino UNO 3.3V
Buzzer
- Signal (PIN): Connected to Arduino UNO analog pin A2
- Ground (GND): Connected to Arduino UNO GND
Documented Code
Arduino UNO Code (sketch.ino)
void setup() {
}
void loop() {
}
Note: The provided code is a template and does not include any functionality. It needs to be populated with the logic to control the connected components based on the requirements of the circuit's application.
Additional Files
- documentation.txt: This file is mentioned but no content is provided. It is likely intended for additional notes or manual documentation.