Item Details: brand new and high quality Made of high quality material, durable and practical to use 1-channel relay module: Is controlled by the microcontroller via a 5 V digital output. With current and relay action display. Used as home appliance control. PIR motion sensor: Human body sensor illuminates industrial automation and control, etc.SG90 9G servo motor: Used for remote-controlled helicopters, micro-robots and boats. All kinds of R / C toy and Arduino experiments. DHT11: The digital temperature and humidity sensor is a digital signal output with a calibrated combined temperature and humidity sensor Soil moisture sensor: Soil moisture is generally the most sensitive to ambient moisture.JoyStick module: 2-axis pushbutton rocker module with joystick potentiometer with (X, Y) 2-axis analog output, (Z) 1 button digital output.Red LED digital tube: Common anode; Digital display: 4 digits; 4-bit 7-segment;Ultrasonic distance sensor: Use the I / O trigger for at least 10 us high-level signal, When triggered, it sends out a series of 40 kHz ultrasonic pulses and receives echo from an object ️There are many companies that sell cheap module kit that contains confusing instructions, an incorrect part picture, a misleading circuit diagram, and a non-functional sample code. To make matters worse, this low quality kit often contains many old modules that have too many quality problems and are no longer supported by the original manufacturers. Such a type of module kit brings the user nothing but a waste of time and money Important NOTE: Kits for Arduino or for Raspberry Pi A few modules have to be soldered Module 1: 0.96 inch OLED screen 1. Introduction 2. Example (Work with for Arduino) 2.1 Pin Map 2.2 for Arduino code Module 2: 1602 Liquid Crystal Display Module 1. Introduction 2. Example (Work with for Arduino) 2.1 Pin Map 2.2 Arduino code Module 3: 1-channel relay module 1. Introduction 2. Example (Work with Arduino) 2.1 Pin Map 2.2 for Arduino code ... ... Class library in the guide: For Adafruit_GFX.zip For Adafruit_SSD1306.zip For LiquidCrystal_I2C-master.zip Package Contents: 1 x 0.96 Inch OLED Screen 1 x 1602 Liquid Crystal Display Module 1 x 1-Channel Relay Module 1 x DHT11 Temperature And Humidity Sensor 1 x Ultrasonic Sensor HC-SR04 1 x 8x8 Dot Display 1 x Joystick Module 1 x 4-Digit Digital Tube 1 x TTP223B Touch Sensor 1 x HC-SR501 Infrared Sensor 1 x Soil Moisture Sensor 1 x Obstacle Avoidance Sensor 1 x SG90 9G Servo Motor 2 x Bread Board 20 x Diode (Red) 30 x Resistor (220 1K 10K Ω) 20 x DuPont Cables (Male to Female) Note: 1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2.Please allow slight manual measurement deviation for the data. Our products are made from very durable, high-quality materials ,sure to meet the needs of your daily life. Before placing an order, we suggest that you always check the size and model of the product carefully to ensure that the selected product meets your actual needs. If you encounter any problems, please contact us in time, we will try our best to provide you with solutions until the problem is solved satisfactorily. After you receive the product, we attach great importance to your feedback, no matter how your comments, we will listen carefully. Every customer can enjoy the free after-sales service we provide, and any damaged or quality problem products can be refunded or exchanged.