26-in-1_Learning_Kit_for_Arduino_UNO_R4_with_26_lessons_Support_WiFi_and_BLE¶

1. Product Overview¶

This kit is an Arduino learning kit designed specifically for beginners with no prior experience. Based on the Arduino UNO R4 WiFi development board, it integrates 26 sensors/modules + 26 lesson experiments to help users gradually master the fundamentals of electronics and programming.

Supports WiFi + BLE (Bluetooth Low Energy)
Step-by-step learning progression: from basic LEDs → sensors → displays → motor control → IoT applications
Suitable for: students / makers / teachers / beginners

SEA00904D

2. Introduction to the Arduino UNO R4 WiFi¶

The Arduino UNO R4 WiFi is a next-generation Arduino development board. Its key features include:

- 32-bit ARM Cortex-M4

- Clock speed: 48 MHz

- Built-in ESP32-S3 (supports Wi-Fi + BLE)

- USB-C port

- Supports DAC / CAN bus

In a nutshell: More powerful than traditional Arduinos + Internet-enabled

3. List of Sensors¶

Sensor / Module Classification Table

No.	Product Name	Module Type
1	Red Button	Input
2	Green Button	Input
3	Yellow Button	Input
4	Switch	Input
5	Light Sensor	I2C
6	Sound Sensor	Input
7	PIR Motion Sensor	Input
8	Water Sensor	Input
9	Soil Moisture Sensor	Input
10	MQ2 Gas Sensor	Input
11	Flame Sensor	Input
12	3-Axis Accelerometer	I2C
13	Temperature & Humidity Sensor	I2C
14	Ultrasonic Ranging Sensor	Input
15	IR Receiver	Input
16	Linear Potentiometer	Input
17	Red LED	Output
18	Green LED	Output
19	Yellow LED	Output
20	Buzzer	Output
21	Relay Module	Output
22	4-Digit Display	I2C
23	I2C LCD Display	I2C
24	Servo Motor	Output
25	Stepper Motor	Output

4. Quick Start Guide¶

Step 1: Install the Main Board¶

Installing the Main Board

First, insert the Arduino Uno R4 main board into the development board from the back. Before inserting it, make sure all pins are properly aligned. The development board clearly labels the pin locations corresponding to the Arduino Uno R4, making it easy to connect all components correctly.

Step 2：Download_Arduino_IDE¶

Please click the card below to learn how to install Arduino IDE.

Installing the Uno R4 Development Board

① Click the development board icon on the left

② Type "uno r4" in the search bar

③ Select version 1.5.1. You can try other versions, but if uploading the code fails, switch back to 1.5.1. This tutorial's code was developed using version 1.5.1.

④ Click "INSTALL" to install

During the installation, a window will pop up-just click"Yes".

Step 3：Add library¶

Please click to download the library files we have provided.

Then click "File" -> "Preferences" -> "Setting" to check the sketchbook location. Place the libraries downloaded to the sketchbook location.

Upload Steps (Important) In all following lessons, the upload steps are the same. Please read carefully, and if you forget, you can return here and follow the steps: 1. Connect the Type-C upload port to your computer

After writing the code, select the board you want to upload to: "Tools"->"Board"->"Arduino UNO R4 Boards"->"Arduino Uno R4 WiFi"

For more information on how to use this product and for further guidance, please refer to the user manual:¶

User_Manual_for_21-in-1_Learning_Kit_for_Arduino_UNO_R4.pdf

Resources¶

Github link：

26-in-1-Learning-Kit-for-Arduino-UNO-R4

(This GitHub link usually may contain single module example,lesson_code,libraries. Please click to view.)

How to buy¶

Please visit this page to purchase 26-in-1-learning-kit-for-arduino-uno-r4.

Support¶

If you encounter any issues while using the service, you can contact us via the social media links in the bottom-right corner of elecrow or send an email to techsupport@elecrow.com for technical support.