LiPo Battery Voltage Tester Documentation

Component Name

LiPo Battery Voltage Tester

Overview

The LiPo Battery Voltage Tester is a compact, low-cost, and easy-to-use device designed to measure the voltage of Lithium-Polymer (LiPo) batteries. This tester is a essential tool for anyone working with LiPo batteries, including robotics, drone, and RC enthusiasts, as well as electronics engineers and hobbyists.

Functionality

The LiPo Battery Voltage Tester is designed to provide a quick and accurate measurement of the voltage of a LiPo battery. The device is connected to the battery using the provided JST-XH balance connector, which is compatible with most LiPo batteries. Once connected, the tester displays the voltage reading on a clear and easy-to-read LCD screen.

Key Features

Accurate Voltage Measurement: The tester provides accurate voltage readings with a resolution of 0.01V, ensuring precise monitoring of the battery's state of charge.
Multi-Cell Support: The device supports measurement of up to 6S LiPo batteries (22.2V maximum), making it suitable for a wide range of applications.
Automatic Cell Count Detection: The tester automatically detects the number of cells in the LiPo battery, eliminating the need for manual configuration.
Low Power Consumption: The device operates at a low power consumption of <5mA, ensuring minimal drain on the battery being tested.
Compact Design: The tester's compact size (approx. 40x20x10mm) and lightweight design make it easy to carry and use in the field or in the workshop.
JST-XH Balance Connector: The provided connector is compatible with most LiPo batteries, ensuring easy and secure connection.
LCD Display: The clear and easy-to-read LCD screen displays voltage readings in a compact and intuitive format.
Low Voltage Warning: The tester includes a built-in low voltage warning feature, alerting the user when the voltage drops below a predetermined threshold ( adjustable between 3.0V and 3.8V per cell).
Power-On Self-Test: The device performs an automatic self-test on power-up, ensuring accurate and reliable voltage measurements.

Operating Voltage

3.0V to 22.2V (up to 6S LiPo batteries)

Accuracy

0.01V

Resolution

0.01V

Power Consumption

<5mA

Dimension

approximately 40x20x10mm

Weight

approximately 10g

Connector

JST-XH balance connector

LCD Screen

3-digit, 7-segment display

Applications

The LiPo Battery Voltage Tester is suitable for a wide range of applications, including

Robotics and drone development

RC model building and maintenance

Electronics prototyping and testing

Battery health monitoring and maintenance

Education and training

Conclusion

The LiPo Battery Voltage Tester is a reliable, accurate, and easy-to-use device that providesessential voltage measurement capabilities for anyone working with LiPo batteries. Its compact design, low power consumption, and automatic cell count detection make it an ideal tool for a variety of applications.

Pin Configuration

LiPo Battery Voltage Tester Documentation
Overview
The LiPo Battery Voltage Tester is a compact and convenient device designed to measure the voltage of Lithium-Polymer (LiPo) batteries. This module is essential for ensuring the safe and efficient operation of LiPo batteries, which are commonly used in various IoT applications, drones, and robotics.
Pinout Description
The LiPo Battery Voltage Tester has a total of 5 pins, which are used to connect the module to a microcontroller, breadboard, or other development boards. Each pin is described below:
Pin 1: VCC
Function: Power Supply
Description: This pin is used to connect the power supply to the module. Typically, a voltage range of 3.3V to 5V is recommended.
Connection: Connect to a power supply or a microcontroller's VCC pin.
Pin 2: GND
Function: Ground
Description: This pin is used to connect the ground of the module to the ground of the system.
Connection: Connect to a power supply or a microcontroller's GND pin.
Pin 3: VIN
Function: LiPo Battery Voltage Input
Description: This pin is used to connect the positive terminal of the LiPo battery.
Connection: Connect to the positive terminal of the LiPo battery.
Pin 4: SDA
Function: Serial Data (I2C)
Description: This pin is used to transfer data from the module to a microcontroller or other I2C devices.
Connection: Connect to a microcontroller's SDA pin or other I2C devices.
Pin 5: SCL
Function: Serial Clock (I2C)
Description: This pin is used to provide the clock signal for I2C communication.
Connection: Connect to a microcontroller's SCL pin or other I2C devices.
Connection Structure
To connect the LiPo Battery Voltage Tester to a microcontroller or development board, follow this structure:
1. Connect the VCC pin to the power supply or the microcontroller's VCC pin.
2. Connect the GND pin to the power supply or the microcontroller's GND pin.
3. Connect the VIN pin to the positive terminal of the LiPo battery.
4. Connect the SDA pin to the microcontroller's SDA pin or other I2C devices.
5. Connect the SCL pin to the microcontroller's SCL pin or other I2C devices.
Notes
Make sure to use a suitable power supply and voltage regulator to power the module and the LiPo battery.
Use a suitable I2C communication protocol and library to communicate with the module.
Always handle LiPo batteries with care, and follow proper safety precautions when working with batteries.
By following these connections and guidelines, the LiPo Battery Voltage Tester can be easily integrated into various IoT projects, enabling users to monitor and control the voltage of their LiPo batteries efficiently and safely.

Code Examples

LiPo Battery Voltage Tester Documentation

Overview

The LiPo Battery Voltage Tester is a compact and easy-to-use module designed to measure the voltage of LiPo batteries commonly used in robotics, drones, and other IoT applications. This module provides an accurate and reliable way to monitor battery health and prevent over-discharge, which can damage the battery.

Pinout

VCC: 3.3V to 5V input voltage
 GND: Ground connection
 OUT: Analog output voltage representing the battery voltage (0-1V)
 BATT: Connection to the LiPo battery (positive terminal)

Technical Specifications

Measuring range: 2.5V to 4.2V
 Accuracy: 1% of full scale
 Resolution: 10mV
 Operating temperature: -20C to 85C

Code Examples

### Example 1: Basic Voltage Measurement using Arduino

This example demonstrates how to use the LiPo Battery Voltage Tester with an Arduino board to measure the battery voltage.

```cpp
const int voltageTesterPin = A0;  // Connect the OUT pin of the voltage tester to Analog Input A0

void setup() {
  Serial.begin(9600);
}

void loop() {
  int sensorValue = analogRead(voltageTesterPin);
  float voltage = sensorValue  (4.2 / 1023.0);  // Convert analog value to voltage (assuming 4.2V full scale)
  Serial.print("Battery Voltage: ");
  Serial.print(voltage);
  Serial.println(" V");
  delay(1000);
}
```

### Example 2: Voltage-Based Low Battery Warning using Raspberry Pi (Python)

This example demonstrates how to use the LiPo Battery Voltage Tester with a Raspberry Pi to trigger a low battery warning when the voltage falls below a certain threshold.

```python
import RPi.GPIO as GPIO
import time

GPIO.setmode(GPIO.BCM)

voltageTesterPin = 18  # Connect the OUT pin of the voltage tester to GPIO 18

GPIO.setup(voltageTesterPin, GPIO.IN)

def read_voltage():
    voltage = GPIO.input(voltageTesterPin)
    voltage = 4.2 / 1023.0  # Convert digital value to voltage (assuming 4.2V full scale)
    return voltage

while True:
    voltage = read_voltage()
    if voltage < 3.5:  # Low battery warning threshold (adjust to your needs)
        print("Low Battery Warning!")
    else:
        print("Battery Voltage: {:.2f} V".format(voltage))
    time.sleep(1)
```

These examples demonstrate the basic usage of the LiPo Battery Voltage Tester. You can modify and extend this code to suit your specific IoT projects and applications.