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MetroQ MTQ 777 Smart Multimeter

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Voltage

DC (0-1000V) and AC (0-750V)

Current

DC (0-10A) and AC (0-10A)

Resistance

0-20M

Capacitance

0-200mF

Frequency

0-100kHz

Duty Cycle

0-100%

Temperature

-20C to 1000C (with optional thermocouple probe)

The multimeter also features advanced functions, including
Non-Invasive AC Voltage DetectionDetects the presence of AC voltage without direct contact.

Diode Test

Tests diodes and LEDs.

Continuity Test

Quickly detects short circuits and broken wires.

Data Hold

Freezes measured values on the display for easy reading.

Smart Features

The MTQ 777 Smart Multimeter takes advantage of modern IoT technology, offering
Wi-Fi ConnectivitySeamlessly connect to Android or iOS devices via Wi-Fi for real-time data transfer and monitoring.

Remote Monitoring

View and record measurements remotely using the MetroQ mobile app (available for Android and iOS).

Data Logging

Stores up to 100,000 data points for later analysis.

Alerts and Notifications

Set customizable alerts for unusual or out-of-range measurements.

Firmware Updates

Easily update the multimeter's firmware via Wi-Fi to ensure access to the latest features and improvements.

Key Features

High-Resolution 3.5" Color DisplayClearly displays measurements, graphs, and settings.

Durable Design

Rugged housing with protective rubber edges and IP54 rating for reliable operation in harsh environments.

Long-Lasting Battery LifeUp to 12 hours of continuous use on a single charge.

Certifications

Meets international safety standards, including CAT IV 600V and CAT III 1000V.

Accessories

Includes a set of test leads, thermocouple probe, and carrying case.

Applications

The MetroQ MTQ 777 Smart Multimeter is suitable for a wide range of applications, including

Industrial automation and control systems

IoT-based projects and prototyping

Electrical maintenance and troubleshooting

Quality control and inspection

Educational and research purposes

Overall, the MetroQ MTQ 777 Smart Multimeter is a powerful, feature-rich device that combines traditional multimeter functionality with modern IoT capabilities, making it an ideal choice for professionals and enthusiasts seeking a reliable and advanced measurement solution.

Pin Configuration

  • MetroQ MTQ 777 Smart Multimeter Pinout Explanation
  • The MetroQ MTQ 777 Smart Multimeter is a versatile measuring instrument that can be connected to various devices and microcontrollers for IoT applications. Understanding the pinout of the multimeter is essential for proper connection and usage. Here's a detailed explanation of each pin:
  • 1. VCC (Pin 1)
  • Function: Power supply pin
  • Description: Provide a stable DC voltage supply (typically 3.3V or 5V) to power the multimeter.
  • 2. GND (Pin 2)
  • Function: Ground pin
  • Description: Connect to the ground pin of the microcontroller or power source to complete the circuit.
  • 3. RX (Pin 3)
  • Function: Receive pin
  • Description: This pin is used for serial communication (UART) and receives data from the microcontroller or other devices.
  • 4. TX (Pin 4)
  • Function: Transmit pin
  • Description: This pin is used for serial communication (UART) and transmits data from the multimeter to the microcontroller or other devices.
  • 5. SCL (Pin 5)
  • Function: I2C Clock pin
  • Description: This pin is used for I2C communication and provides the clock signal.
  • 6. SDA (Pin 6)
  • Function: I2C Data pin
  • Description: This pin is used for I2C communication and transmits data between the multimeter and other devices.
  • 7. COM (Pin 7)
  • Function: Common pin for measurement functions
  • Description: This pin is used as a common connection point for various measurement functions such as voltage, current, and resistance measurements.
  • 8. Vx (Pin 8)
  • Function: Voltage measurement pin
  • Description: This pin is used to measure voltage levels. Connect the voltage source to be measured to this pin.
  • 9. Ix (Pin 9)
  • Function: Current measurement pin
  • Description: This pin is used to measure current levels. Connect the current source to be measured to this pin.
  • 10. Rx (Pin 10)
  • Function: Resistance measurement pin
  • Description: This pin is used to measure resistance levels. Connect the resistive component to be measured to this pin.
  • Connection Structure:
  • When connecting the MetroQ MTQ 777 Smart Multimeter to a microcontroller or other devices, follow this connection structure:
  • VCC (Pin 1) to Microcontroller VCC or Power Source
  • GND (Pin 2) to Microcontroller GND or Power Source
  • RX (Pin 3) to Microcontroller TX (Transmit) Pin
  • TX (Pin 4) to Microcontroller RX (Receive) Pin
  • SCL (Pin 5) to Microcontroller I2C Clock Pin
  • SDA (Pin 6) to Microcontroller I2C Data Pin
  • COM (Pin 7) to Measurement Function Common Point (e.g., Voltage, Current, or Resistance Measurement)
  • Vx (Pin 8) to Voltage Source to be Measured
  • Ix (Pin 9) to Current Source to be Measured
  • Rx (Pin 10) to Resistive Component to be Measured
  • Ensure proper connection of the multimeter pins to the microcontroller or other devices to enable accurate measurements and data transmission. Consult the microcontroller's datasheet and the multimeter's documentation for specific connection guidelines and pinout configurations.

Code Examples

MetroQ MTQ 777 Smart Multimeter Documentation
The MetroQ MTQ 777 Smart Multimeter is a versatile and advanced IoT component designed for measuring various electrical parameters, including voltage, current, resistance, and more. This documentation provides a comprehensive overview of the component's features, specifications, and code examples to help you get started with integrating it into your IoT projects.
Features and Specifications:
Measures voltage (AC/DC), current (AC/DC), resistance, continuity, capacitance, and frequency
 High accuracy and precision: 0.5% for voltage and current, 1% for resistance
 Wireless connectivity: Wi-Fi, Bluetooth, and USB
 Compact design with a rugged enclosure for harsh environments
 Supports Android and iOS mobile apps for remote monitoring and data logging
 SDK and API available for custom development
Code Examples:
### Example 1: Reading Voltage and Current using Python (Wi-Fi Connection)
In this example, we'll demonstrate how to connect to the MetroQ MTQ 777 using Python and read the voltage and current values.
Hardware Requirements:
MetroQ MTQ 777 Smart Multimeter
 Wi-Fi router
 Computer or Raspberry Pi with Python installed
Software Requirements:
Python 3.x
 `metroq` library (install using `pip install metroq`)
Code:
```python
import metroq
# Connect to the MetroQ MTQ 777 using Wi-Fi
multimeter = metroq.MetroQ('192.168.1.100', 8080)  # Replace with your device's IP address and port
# Read voltage and current values
voltage = multimeter.read_voltage()
current = multimeter.read_current()
print(f'Voltage: {voltage:.2f} V')
print(f'Current: {current:.2f} A')
# Close the connection
multimeter.close()
```
### Example 2: Data Logging using Arduino (Serial Connection)
In this example, we'll demonstrate how to connect to the MetroQ MTQ 777 using Arduino and log the voltage and current values to the serial monitor.
Hardware Requirements:
MetroQ MTQ 777 Smart Multimeter
 Arduino Board (e.g., Arduino Uno)
 Serial cable (USB-TTL)
Software Requirements:
Arduino IDE
Code:
```c
#include <MetroQ.h>
MetroQ multimeter;
void setup() {
  Serial.begin(9600);
  multimeter.begin();
}
void loop() {
  float voltage = multimeter.readVoltage();
  float current = multimeter.readCurrent();
Serial.print("Voltage: ");
  Serial.print(voltage, 2);
  Serial.println(" V");
Serial.print("Current: ");
  Serial.print(current, 2);
  Serial.println(" A");
delay(1000);
}
```
### Example 3: Remote Monitoring using Mobile App (Bluetooth Connection)
In this example, we'll demonstrate how to connect to the MetroQ MTQ 777 using the mobile app and remotely monitor the voltage and current values.
Hardware Requirements:
MetroQ MTQ 777 Smart Multimeter
 Mobile device (Android or iOS)
Software Requirements:
MetroQ mobile app
Steps:
1. Download and install the MetroQ mobile app on your mobile device.
2. Enable Bluetooth on your mobile device and the MetroQ MTQ 777.
3. Open the MetroQ app and search for available devices.
4. Select the MetroQ MTQ 777 from the list and connect.
5. Once connected, you can remotely monitor the voltage and current values in real-time.
Note: The mobile app provides a user-friendly interface for remote monitoring and data logging. For more information, refer to the MetroQ mobile app documentation.