# 1. Product introduction

**keyestudio Basic Starter Kit for REV4 and Mega**

![](media/wps1.png)

## 1.1 Kit Introduction

This is the basic Starter Kit, developed specially for those beginners who are interested in Arduino.
You will have a set of Arduino's most common and useful electronic components. What's more, we will offer you a detailed tutorials including project introduction and their source codes.

You may learn about Arduino through using these basic projects. This kit will help you control the physical world with sensors.

![](media/1.png)

## 1.2 Kit Contents

| No.  | Item                              | Quantity | Picture                                |
| ---- | --------------------------------- | -------- | -------------------------------------- |
| 1    | LED - Blue                        | 5        | ![](media/wps2.jpg)                    |
| 2    | LED - Red                         | 5        | ![](media/wps3.jpg)                    |
| 3    | LED - Yellow                      | 5        | ![](media/wps4.jpg)                    |
| 4    | LED - RGB                         | 1        | ![](media/wps5.jpg)                    |
| 5    | 220 Ω Resistor                    | 8        | ![](media/wps6.png)                    |
| 6    | 10KΩ Resistor                     | 5        | ![](media/wps7.png)                    |
| 7    | 1KΩ resistor                      | 5        | ![](media/wps8.png)                    |
| 8    | 10KΩ Potentiometer                | 1        | ![](media/wps9.jpg)                    |
| 9    | Active Buzzer                     | 1        | ![](media/wps10.jpg)                   |
| 10   | Passive Buzzer                    | 1        | ![](media/wps11.jpg)                   |
| 11   | Button Switch                     | 4        | ![](media/image-20251121150208682.png) |
| 12   | Ball Tilt Sensor                  | 2        | ![](media/wps12.jpg)                   |
| 13   | Photo Resistor                    | 3        | ![](media/image-20251121150304754.png) |
| 14   | Flame Sensor                      | 1        | ![](media/wps13.jpg)                   |
| 15   | LM35 Temp Sensor                  | 1        | ![](media/wps14.jpg)                   |
| 16   | IC 74HC595N 16-pin                | 1        | ![](media/wps15.jpg)                   |
| 17   | 1-digit 7-seg LED Segment Display | 1        | ![](media/wps16.jpg)                   |
| 18   | 4-digit 7-seg LED Segment Display | 1        | ![](media/wps17.jpg)                   |
| 19   | 8*8 LED Matrix                    | 1        | ![](media/wps18.jpg)                   |
| 20   | 1602 LCD display                  | 1        | ![](media/wps19.png)                   |
| 21   | IR Receiver                       | 1        | ![](media/wps20.jpg)                   |
| 22   | IR Remote Control                 | 1        | ![](media/wps21.jpg)                   |
| 23   | Servo Motor                       | 1        | ![](media/wps22.png)                   |
| 24   | 16Pin Headers                     | 2        | ![](media/image-20251121151735204.png) |
| 25   | 830-hole Breadboard               | 1        | ![](media/wps23.jpg)                   |
| 26   | Jumper Wire                       | 1        | ![](media/wps24.jpg)                   |
| 27   | 6-cell AA Battery Case            | 1        | ![](media/wps25.jpg)                   |
| 28   | USB Cable                         | 1        | ![](media/wps26.jpg)                   |
| 29   | Resistance color ring meter       | 1        | ![](media/wps27.jpg)                   |

## 1.3 Component Introduction

![](media/2.png)

Keyestudio REV4 development board is a microcontroller board based on the ATmega328P (datasheet), fully compatible with ARDUINO UNO. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, 2 ICSP headers and a reset button.
It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.