3D Online Simulation | Battery Level Detection and Display

Revolutionize battery management with our 3D online simulation for real-time battery level detection and display. Stay charged for success.

BeginnerFull instructions provided102

Things used in this project

Hardware components

Arduino UNO

Microchip ATmega328PB microcontroller

Adafruit RGB Backlight LCD - 16x2

Resistor 10k ohm

Software apps and online services

PCBX Online Simulation

Story

Introduction

This tutorial will guide you through creating a 3D simulation of a battery-level detection and display system using a popular online platform like Tinkercad or similar tools. We will use a virtual ATMEGA328P microcontroller, an LCD1602 display, and a voltage divider circuit to simulate the real-world scenario.

Key Components:

ATMEGA328P Microcontroller: The brain of the system, isresponsible for reading the battery voltage and controlling the LCD display.
LCD1602 Display: A 16x2 character LCD used to display the measured battery voltage.
Voltage Divider: A simple circuit consisting of two resistors (R1 and R2) used to reduce the battery voltage to a level safe for the microcontroller's analog input.
Battery: Simulated as a voltage source in the 3D environment.

Circuit Design:

Create the Voltage Divider:

Place two resistors (R1 = 100kΩ and R2 = 49.9kΩ) in series.
Connect one end of the series to the positive terminal of the simulated battery.
Connect the junction between the two resistors to the analog input pin (A4) of the ATMEGA328P.
Connect the other end of the series to the ground.

Connect the LCD:

Refer to the datasheet of the LCD1602 to identify the pin connections for data (D4-D7), enable (EN), register select (RS), and power supply.
Connect these pins to the appropriate digital pins on the ATMEGA328P according to the datasheet and the provided code.
Connect the LCD's power supply and ground to the appropriate voltage sources in the simulation environment

Connect the ATMEGA328P:

Connect the ATMEGA328P to the power supply (5V) and ground.
Connect the necessary ground connections between the components.

Code Implementation:

Upload the Code:

Upload the provided Arduino code to the virtual ATMEGA328P microcontroller within the simulation environment.

Verify Functionality:

Run the simulation.
Observe the LCD display. It should display the measured battery voltage in real-time.
Adjust the simulated battery voltage to verify the accuracy of the voltage reading on the LCD.

3D Simulation Advantages:

Visual Learning: Provides a visual representation of the circuit and its components.
Interactive Exploration: Allows for experimentation by modifying component values and observing the effects.
Safety: Eliminates the risk of damaging components during physical prototyping.
Cost-Effectiveness: Simulates the circuit without the need for actual hardware.

Simulation details here: https://www.pcbx.com/sim/?id=e1997d36e4f84f1eae6795588b4809d4

This tutorial provides a basic framework for simulating a battery-level detection and display system. By following these steps and exploring further, you can gain a deeper understanding of the underlying principles and experiment with different configurations.

Join the PCBX community to simulate your own projects

https://www.pcbx.com/forum?mtm_campaign=E&mtm_kwd=hack

https://www.pcbx.com/?mtm_campaign=E&mtm_kwd=BD

While the 3D simulation feature is still a work in progress, we would love to hear your suggestions and expectations. It's an open-source community; any sharing and feedback is welcome.

Your feedback will help our engineering team enhance the platform and better serve our users.T

Code

Battery Level Detection

#include <LiquidCrystal.h>

// 初始化液晶库与Arduino的引脚
const int rs = 7, en = 6, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
// 定义模拟输入引脚
const int analogPin = A4;

// 定义已知电阻的阻值（例如10KΩ）
const float knownResistance = 10000.0; 

// 定义Arduino的ADC参考电压
const float referenceVoltage = 5.0; 

void setup() {
  // 设置LCD的列数和行数
  lcd.begin(16, 2);
  // 设置LCD的光标位置并打印文本
  lcd.setCursor(0, 0);
  lcd.print("Measuring R:");
}

void loop() {
  // 读取模拟引脚的值
  int sensorValue = analogRead(analogPin);
  // 计算未知电阻上的电压
  float voltage = (sensorValue * referenceVoltage) / 1023.0;
  // 计算未知电阻的阻值
  float unknownResistance = (knownResistance * voltage) / (referenceVoltage - voltage);
  
  // 打印电阻值到LCD的第二行
  lcd.setCursor(0, 1);
  lcd.print("Res: ");
  lcd.print(unknownResistance);
  lcd.print(" Ω");

  // 等待一秒钟
  delay(1000);
}