Design with Level Gauge Indicator in Cirkit DesignerThe Level Gauge Indicator is a device designed to measure and display the level of a liquid within a container. It is commonly used in industrial, automotive, and household applications to monitor liquid levels such as water, fuel, or chemicals. The device typically operates using floats, ultrasonic sensors, or capacitive sensing to provide accurate and reliable readings.
This is a manually controlled indicator and alert system. It uses switches and pushbuttons to activate red and green LEDs, buzzers, and bulbs, indicating different states or alerts. The circuit is powered by a 6V battery and includes resistors to protect the LEDs from excessive current.
Open Project in Cirkit Designer
This circuit is designed to monitor gas levels using MQ135 and MQ-4 gas sensors and to measure temperature and humidity with a DHT11 sensor. It uses an Arduino UNO to read sensor data and control a green LED, a red LED, and a buzzer for visual and audible alerts. The green LED and buzzer are activated when high gas levels are detected, while the red LED indicates low gas levels.
Open Project in Cirkit Designer
This circuit is designed to monitor water levels using an HC-SR04 Ultrasonic Sensor and display the information on an LCD I2C Display. An Arduino UNO controls the sensor to measure distance, calculates the water level as a percentage, and toggles a relay to control a pump based on the water level and manual input from a pushbutton. The system allows for manual override of the pump operation and stores the set water level threshold in EEPROM for persistent control across power cycles.
Open Project in Cirkit Designer
This circuit is a fuel level and temperature monitoring system using an Arduino Nano, which reads sensor data from potentiometers and displays the information on an OLED screen. It controls LEDs to indicate critical levels: a red LED for low fuel, a yellow LED for high temperature, and additional LEDs for oil and battery status. The system also updates the display with the current readings and thresholds.
Open Project in Cirkit DesignerBelow are the general technical specifications for a typical Level Gauge Indicator. Specific models may vary, so always refer to the manufacturer's datasheet for precise details.
The pin configuration may vary depending on the type of Level Gauge Indicator. Below is an example for a digital ultrasonic-based indicator:
| Pin Name | Description |
|---|---|
| VCC | Power supply input (5V or 12V DC) |
| GND | Ground connection |
| TRIG | Trigger pin for ultrasonic pulse |
| ECHO | Echo pin for receiving ultrasonic signal |
| OUT | Analog or digital output signal |
For a float-based resistive indicator, the pin configuration might look like this:
| Pin Name | Description |
|---|---|
| VCC | Power supply input (5V or 12V DC) |
| GND | Ground connection |
| OUT | Resistive output signal |
// Example code to interface an ultrasonic Level Gauge Indicator with Arduino UNO
// This code measures the liquid level and displays it on the Serial Monitor.
#define TRIG_PIN 9 // Define the TRIG pin
#define ECHO_PIN 10 // Define the ECHO pin
void setup() {
pinMode(TRIG_PIN, OUTPUT); // Set TRIG pin as output
pinMode(ECHO_PIN, INPUT); // Set ECHO pin as input
Serial.begin(9600); // Initialize serial communication
}
void loop() {
long duration;
float distance;
// Send a 10us pulse to trigger the ultrasonic sensor
digitalWrite(TRIG_PIN, LOW);
delayMicroseconds(2);
digitalWrite(TRIG_PIN, HIGH);
delayMicroseconds(10);
digitalWrite(TRIG_PIN, LOW);
// Measure the time it takes for the echo to return
duration = pulseIn(ECHO_PIN, HIGH);
// Calculate the distance (in cm) based on the speed of sound
distance = (duration * 0.034) / 2;
// Display the distance on the Serial Monitor
Serial.print("Liquid Level: ");
Serial.print(distance);
Serial.println(" cm");
delay(1000); // Wait for 1 second before the next reading
}
No Output Signal:
Inaccurate Readings:
Intermittent Signal Loss:
Ultrasonic Sensor Not Responding:
By following this documentation, users can effectively integrate and troubleshoot a Level Gauge Indicator in their projects.