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Notice
Due to the no battery policy of Aliexpress Standard Shipping, the original battery from the kit was removed.
(without which 4-5 tutorials may not be used normally). If you need it, please purchase the battery separately from other places.
So sorry for the inconvenience caused and we'd appreciate your understanding.
Product description
1、More than 200 components, this is the most complete starter kit you will find. Great value starter kit with 63 kinds of electronic components.
2、Has all the components you need and a free PDF tutorial (more than 30 lessons) to show you how to use them. All code to use the modules is included on the CD.
3、All the modules come soldered so they are easy to wire up.
4、Includes ELEGOO R3 controller board and USB cable, 100% compatible with Arduino IDE Official R3, Official kit.
5、Kit comes packaged in compartmentalized case with a bonus box for small parts like LED’s, IC’s, buttons, diodes, etc.

Starter kit that everyone can use to learn electronics
Electronics is not as complicated as you imagine especially with Elegoo UNO R3 Starter Kit. For advanced users like professional lab engineers, electronic major students and experienced hobbyists compatible with Arduino projects, they can use this kit to do various kinds of tests and experiments with so many sensors available at hand.
What about novice users who don't have any electronics knowledge? Fear not amigo. Just follow our tutorial enclosed and step by step you will come to realize that learning electronics is more fun than you ever expected with this amazing sensor kit.
It’s a good choice and perfect gift for your friends, family or kids who are obsessed with electronics or robotics to take their first steps on electronics journey.

The most complete starter Kit with high quality components and sensors
Quantity and quality are both important here in Elegoo UNO R3 starter kit. The most essential parts in this kit are UNO R3 controller board and expansion board, which is a perfect clone with excellent product finish compatible with Arduino projects.
Besides, we offer other over 60 kinds of components and sensors from small parts like LED diodes, resistors and potentiometer to big parts like LCD1602, RFID module and 830 tie-points breadboard, which meet your demands for your different projects either it is simple or complex.
Sturdy quality is definitely the most important thing to Elegoo even with so many components provided we never compromised on the quality. Instead we keep improving our product quality in our own factory and we produce the products by ourselves under high standards and strict quality control. Pins and wires on some of the parts like LCD16502 and motors have been pre-soldered which is very convenient and saves your time.

74HC595 Shift Register and LEDs
74HC595 is a Serial to Parallel Converter which has eight outputs (perfect) and three inputs that you use to feed data into it a bit at a time.
This chip makes it a little slower to drive the LEDs (you can only change the LEDs about 500,000 times a second instead of 8,000,000 a second) but it's still really fast, way faster than humans can detect, so it's worth it.
74HC595 shift register is a type of chip that holds what can be thought of as eight memory locations, each of which can either be a 1 or a 0. To set each of these values on or off, we feed in the data using the 'Data' and 'Clock' pins of the chip.

LCD1602 Display module
LCD1602 module is a display that has an LED backlight and can display two rows with up to 16 characters on each row. You can see the rectangles for each character on the display and the pixels that make up each character. The display is just white on blue and is intended for showing text.
Lining up the display with the top of the breadboard helps to identify its pins without too much counting, especially if the breadboard has its rows numbered with row 1 as the top row of the board. Do not forget, the long yellow lead that links the slider of the pot to pin 3 of the display. The 'pot' is used to control the contrast of the display.

DC Motors and L293D Transistor
In this project you will learn how to control a small DC motor using an UNO R3 and a L293D transistor, which is a very useful chip. It can actually control two motors independently. We are just using half the chip in this lesson, most of the pins on the right hand side of the chip are for controlling a second motor.
L293D is quadruple high-current half-H drivers and designed to provide bidirectional drive currents of up to 1 A at voltages from 4.5 V to 36 V. The L293D is also designed to provide bidirectional drive currents of up to 600-mA at voltages from 4.5 V to 36 V and drive inductive loads such as relays, solenoids, dc and bipolar stepping motors, as well as other high-current/high-voltage loads in positive-supply applications.

What is in the box(no battery)
1pcs Keypad Module
1pcs 5V Relay
1pcs IR Receiver Module
1pcs UNO R3 Controller Board
1pcs Breadboard
1pcs Servo Motor (SG90)
1pcs Stepper Motor
1pcs ULN2003 Stepper Motor Driver Board
1pcs Prototype Expansion
1pcs Power Supply Module WARNING: Pls. do not use the voltage higher than 9V
1pcs HC-SR501 PIR Motion Sensor
1pcs Ultrasonic Sensor
1pcs GY-521 Module
1pcs 3V Servo Motor
1pcs MAX7219 Module
1pcs Remote
1pcs 9V 1A Power Supply
1pcs 65 Jumper Wire
1pcs Water Lever Sensor
1pcs USB Cable
1pcs RC522 RFID Module
10pcs Resistor (10R)
10pcs Resistor (100R)
30pcs Resistor (220R)
10pcs Resistor (330R)
10pcs Resistor (1K)
10pcs Resistor (2K)
10pcs Resistor (5K1)
10pcs Resistor (10K)
10pcs Resistor (100K)
10pcs Resistor (1M)
10pcs Resistor (1M)
20pcs Female-to-male DuPont Wire
5pcs White LED
5pcs Yellow LED
5pcs Blue LED
5pcs Green LED
5pcs Red LED
1pcs RGB LED
5pcs 22pf Ceramic Capacitor
5pcs 104 Ceramic Capacitor
2pcs Photo resistor
1pcs Thermistor
5pcs Diode Rectifier (1N4007)
2pcs Electrolytic Capacitor (10UF 50V)
2pcs Electrolytic Capacitor (100UF 50V)
5pcs NPN Transistor (PN2222)
5pcs NPN Transistor (S8050)
1pcs Tilt Switch
5pcs Button (small)
1pcs 1 digit 7-segment Display
1pcs 4 digit 7-segment Display
1pcs Sound Sensor Module
1pcs LCD1602 Module ( with pin header)
1pcs IC L293D
1pcs IC 74HC595
1pcs Active Buzzer
1pcs Passive Buzzer
1pcs RTC Module
1pcs DHT11 Temperature and Humidity Module
2pcs Potentiometer
1pcs Rotary Encoder Module


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