Companion for the ELEGOO UNO R3 Most Complete Starter Kit

ELEGOO UNO R3 Most Complete Starter Kit: lesson by lesson, simulated

The four parts of the kit’s V2.0 tutorial, lesson by lesson, each one a circuit that runs in your browser with the kit’s parts on the kit’s pins. Use it beside your manual, or to keep going while a part is missing.

39 of the 44 lessons with a circuit run here, 5 of them with a change we name, 5 coming soon, 4 setup lessons need no circuit.

Not affiliated with ELEGOO. Lesson titles are referenced so you can follow along.

Open the first lesson Find your lesson

Lesson by lesson

Every lesson in the kit’s order

Lesson numbers and titles follow tutorial V2.0, from the download dated 2023.05.08 (older boxes ship the V1.0 tutorial, which numbers its lessons differently). Each circuit uses the kit’s parts on the pins the lesson uses.

1.1
Packing List
No circuit
What is in the box. Every part the lessons use is in the editor’s parts panel.
1.2
First Look Arduino
No circuit
A tour of the Uno board. Hover any pin on the canvas to see its name.
1.3
For Windows Setting up development environment
No circuit
Installing the IDE and drivers on Windows. Not needed here: everything runs in the browser.
1.4
For Mac and Ubuntu Building a Developed Environment
No circuit
The same setup on a Mac or on Linux. Not needed here either.
1.5
Blink and Add Libraries
Runs here
The LED on pin 13 blinking once a second. The kit’s libraries are already built in.
Open in the editor Arduino Uno blink
2.1
LED
Runs here
An LED and a resistor on the 5 V pin, no code. Try 1k and 10k in place of 220 ohm.
Open in the editor An LED on the 5 V pin
2.2
RGB LED
Runs here
Red on pin 6, green on 5, blue on 3, fading from color to color.
Open in the editor RGB fade on pins 6, 5 and 3
2.3
Digital Inputs
Runs here
A button on pin 9 turns the LED on pin 5 on, a button on pin 8 turns it off.
Open in the editor Two buttons, one LED
2.4
Serial Monitor
Runs here
Talking to the board through the serial monitor, the tool you will use in every later lesson.
Open the guided lesson
2.5
Active Buzzer
Runs here
An active buzzer on pin 12, beeping fast and then slow.
Open in the editor Active buzzer
2.6
Passive Buzzer
Runs here
A passive buzzer on pin 8 plays a scale with tone().
Open in the editor Passive buzzer on pin 8
2.7
Tilt Ball Switch
Runs here
Tip the ball switch on pin 2 and the LED on pin 13 lights.
Open in the editor Tilt switch
2.8
Servo
Runs here
A micro servo on pin 9 moving to set angles and sweeping back.
Open in the editor Servo sweep
2.9
Ultrasonic Sensor Module
Runs here
An HC-SR04, TRIG on 12 and ECHO on 11, measuring distance in centimeters.
Open in the editor Ultrasonic distance on pins 12 and 11
2.10
Membrane Switch Module
Runs here
A 4x4 keypad, rows on pins 9 to 6 and columns on 5 to 2, printing each key.
Open in the editor Membrane keypad on pins 9 to 2
2.11
DHT11 Temperature and Humidity Sensor
Runs here
A DHT11 on pin 2 reading temperature and humidity.
Open in the editor DHT11 temperature and humidity
2.12
Analog Joystick Module
Runs here
X on A0, Y on A1, the switch on pin 2.
Open in the editor Joystick on A0, A1 and pin 2
2.13
IR Receiver Module
Runs here
An IR receiver on pin 11 decoding the remote.
Open in the editor IR decoder
2.14
MAX7219 LED Dot Matrix Module
Runs here
An 8x8 matrix on a MAX7219, DIN 12, CLK 10 and CS 11, drawing faces.
Open in the editor MAX7219 8x8 matrix (pins 12, 10 and 11)
2.15
Gyro (MPU-6050 Module)
Runs here
An MPU-6050 on the I2C pins, printing its raw acceleration and rotation.
Some boxes ship a QMI-8658 board for this lesson instead; that chip is not simulated yet.
Open in the editor MPU-6050 readings over I2C
2.16
HC-SR501 PIR Sensor
Runs here
A motion sensor on pin 7 lights the LED on pin 13.
Open in the editor PIR motion light
2.17
Water Level Detection Sensor Module
Runs here
A water level sensor on A0, sorted into dry, low, half and full.
Open in the editor Water level sensor
2.18
Real Time Clock Module
Runs here
A DS1307 clock on A4 and A5 keeping the date and time.
Open in the editor Real-time clock
2.19
Sound Sensor Module
Runs here
A sound sensor with its analog output on A0 and its digital output on pin 3.
Open in the editor Sound sensor on A0 and pin 3
2.20
RC522 RFID Module
Runs here
An RC522 reader, SS on 10 and RST on 9, printing each card’s ID.
Open in the editor RC522 RFID reader (SS 10, RST 9)
2.21
LCD Display
Runs here
A 16x2 LCD on pins 7 to 12.
The contrast knob is left out: the simulated display is always readable, so V0 goes to ground.
Open in the editor LCD1602 on pins 7 to 12
2.22
Eight LED with 74HC595
Runs here
Eight LEDs on a shift register: data 12, clock 9, latch 11.
Open in the editor Eight LEDs on a 74HC595 (pins 12, 9 and 11)
2.23
DC Motors
Runs here
An L293D on pins 5, 3 and 4 driving a motor both ways.
The motor runs from the Uno’s 5 V here; on the bench the lesson powers it from the breadboard power module.
Open in the editor DC motor on an L293D (pins 5, 3 and 4)
2.24
Stepper Motor
Runs here
A 28BYJ-48 on pins 8 to 11, one turn each way.
Open in the editor Stepper motor on pins 8 to 11
2.25
EEPROM
Runs here
Saving numbers in the Uno’s EEPROM so they survive a reset.
Open in the editor EEPROM: memory that survives a reset
3.1
Thermometer
Runs here
A thermistor on A0, the temperature on the LCD.
The contrast knob is left out: the simulated display is always readable, so V0 goes to ground.
Open in the editor Thermistor thermometer on an LCD (pins 7 to 12)
3.2
74HC595 And Segment Display
Runs here
A digit counting down through a 74HC595 on pins 2, 4 and 3.
One 220 ohm resistor on the common pin stands in for a resistor on every segment.
Open in the editor One-digit countdown on a 74HC595 (pins 2, 4 and 3)
3.3
The Serial Monitor
Runs here
Lighting the shift register’s LEDs by typing into the serial monitor.
Open in the editor Serial monitor drives eight LEDs (74HC595)
3.4
Photocell
Runs here
A photocell on A0 drives a bar of eight LEDs.
Open in the editor Photocell bar graph on a 74HC595
3.5
Four Digit Seven Segment Display
Runs here
Four digits on a 74HC595, pins 8, 10 and 9.
Open in the editor Four-digit display on a 74HC595 (pins 8, 10 and 9)
3.6
Relay
Runs here
A relay driven by the L293D switches the motor.
The motor runs from the Uno’s 5 V here; on the bench the lesson powers it from the breadboard power module.
Open in the editor Relay switched by an L293D (pins 5, 3 and 4)
3.7
Controlling a Stepper Motor With Remote
Runs here
The remote’s VOL+ and VOL- turn the stepper.
Open in the editor Remote stepper
3.8
Controlling a Stepper Motor With Rotary Encoder
Runs here
A rotary encoder on pins 2, 3 and 4 steers the stepper click for click.
Open in the editor Knob stepper
3.9
Creating Timer
Runs, with a change
A countdown timer on a four-digit display, set with buttons on A3 and 6 and started with A1.
The buzzer runs straight from A2 and the LED on A0 has no 10k pull-up; the kit adds an 8050 transistor and that resistor for more drive.
Open in the editor Countdown timer on a four-digit display
4.1
Dice
Runs, with a change
Shake the tilt switch and an 8x8 matrix rolls a die.
The kit builds this on its ALL IN ONE Sensor Shield. Mokxi has no model of that shield yet, so the same parts are wired on a breadboard to the same pins the shield uses.
Open in the editor Tilt dice on an 8x8 matrix
4.2
Greedy Snake
Coming soon
A snake game on the matrix, steered by tilting the board.
Built on the kit’s ALL IN ONE Sensor Shield, which Mokxi does not model yet. Coming soon.
4.3
Memory Arithmetic Game
Coming soon
A mental arithmetic game with the shield’s buttons and display.
Built on the kit’s ALL IN ONE Sensor Shield, which Mokxi does not model yet. Coming soon.
4.4
Fruit Forecast
Coming soon
A catching game on the matrix.
Built on the kit’s ALL IN ONE Sensor Shield, which Mokxi does not model yet. Coming soon.
4.5
Multifunctional alarm clock
Coming soon
A clock with an alarm on the shield’s display.
Built on the kit’s ALL IN ONE Sensor Shield, which Mokxi does not model yet. Coming soon.
4.6
Ultrasonic Ranging
Runs, with a change
Hold a button and the distance in front of the sensor appears on the LCD.
The kit builds this on its ALL IN ONE Sensor Shield. Mokxi has no model of that shield yet, so the same parts are wired on a breadboard to the same pins the shield uses.
Open in the editor Ultrasonic ranging on an LCD
4.7
RFID Time Clock
Coming soon
Clocking in with RFID cards, the time on the LCD.
Built on the kit’s ALL IN ONE Sensor Shield, which Mokxi does not model yet. Coming soon.
4.8
Infrared Remote Switch Light
Runs, with a change
A servo arm flips a light switch when you press 1 or 2 on the remote.
The kit builds this on its ALL IN ONE Sensor Shield. Mokxi has no model of that shield yet, so the same parts are wired on a breadboard to the same pins the shield uses.
Open in the editor Remote control light switch (IR on 12, servo on 11)
4.9
Body-sensing Nightlight
Runs, with a change
A motion sensor turns on an RGB night light for 20 seconds.
The kit builds this on its ALL IN ONE Sensor Shield. Mokxi has no model of that shield yet, so the same parts are wired on a breadboard to the same pins the shield uses.
Open in the editor Motion night light (PIR on 12, RGB on 5, 6 and 9)

Lesson list and pins read from ELEGOO’s tutorial download page. The explanations on this page are our own.

For the manual

A link and a QR code for this page

Print either one beside a lesson, or tape it inside the box lid. Both open this page.

mokxi.com/k/elegoo-complete

The code is black on white with a quiet border, so it prints and scans at any size from 2 cm up.

Download the QR code (SVG)

Make kits? See what we offer kit makers.

Questions about this page

Is this made by ELEGOO?

No. Mokxi is independent and is not affiliated with ELEGOO. The page follows the kit’s lessons so you can use the two side by side; the circuits, sketches and explanations are Mokxi’s own.

Do I need the kit?

No. Every lesson that runs here runs in the browser, so you can try them before you buy a kit, or keep going while a part is missing or broken.

Is the code the same as in my manual?

The pins and the parts are the same, and the sketches use the same libraries where the kit does. The code itself is written for this page, with comments that explain each step, so it will not match the manual line for line.

What do "with a change" and "coming soon" mean?

A lesson marked "with a change" runs, but something differs from the kit, and the note under it says exactly what. "Coming soon" means we cannot simulate that lesson yet, and the note says why. We do not mark a lesson as running unless it does.

Is it free?

Yes. Every lesson on this page opens with no account. A free account saves your own copies of the circuits.

Other kits

Companion pages for more starter kits.

ELEGOO UNO R3 Super Starter Kit

25 lessons, 24 run in the browser

Arduino Starter Kit

15 lessons, 15 run in the browser

SunFounder Starter Kit for Arduino Uno R3

23 lessons, 23 run in the browser

Start at lesson one

Every lesson opens in the editor with no account and nothing to install. Run it, change a number, run it again.

See the lessons

ELEGOO UNO R3 Most Complete Starter Kit: lesson by lesson, simulated

Every lesson in the kit’s order

Packing List

First Look Arduino

For Windows Setting up development environment

For Mac and Ubuntu Building a Developed Environment

Blink and Add Libraries

LED

RGB LED

Digital Inputs

Serial Monitor

Active Buzzer

Passive Buzzer

Tilt Ball Switch

Servo

Ultrasonic Sensor Module

Membrane Switch Module

DHT11 Temperature and Humidity Sensor

Analog Joystick Module

IR Receiver Module

MAX7219 LED Dot Matrix Module

Gyro (MPU-6050 Module)

HC-SR501 PIR Sensor

Water Level Detection Sensor Module

Real Time Clock Module

Sound Sensor Module

RC522 RFID Module

LCD Display

Eight LED with 74HC595

DC Motors

Stepper Motor

EEPROM

Thermometer

74HC595 And Segment Display

The Serial Monitor

Photocell

Four Digit Seven Segment Display

Relay

Controlling a Stepper Motor With Remote

Controlling a Stepper Motor With Rotary Encoder

Creating Timer

Dice

Greedy Snake

Memory Arithmetic Game

Fruit Forecast

Multifunctional alarm clock

Ultrasonic Ranging

RFID Time Clock

Infrared Remote Switch Light

Body-sensing Nightlight

A link and a QR code for this page

Questions about this page

Other kits

Start at lesson one