MLX90614 ESF Non-Contact Human Body Infrared Temperature Measurement Module

This ultrasonic sensor, which can measure from 2cm to 400cm with 3mm precision, can be used in various distance reading, radar and robot applications.

Features :

1. Measures the distance within a wide range of 2cm to 400cm
2. Stable performance
3. Accurate distance measurement
4. High-density
5. Small blind distance

Package Includes:

1 x HC-SR04-Ultrasonic Range Finder

The M274 360 Degree Rotary Encoder Module Brick Sensor is a rotary input device (as in knob) that provides an indication of how much the knob has been rotated AND what direction it is rotating in. It’s a great device for stepper and servo motor control.  You could also use it to control devices like digital potentiometers.

M274 360 rotary Degree encoder, is an incremental electro-mechanical device that converts the angular position or motion of a shaft or axle to digital code. The output of incremental encoders provides information about the motion of the shaft, which is typically further processed in processor/controllers into information such as speed, distance, and position.

The DHT11 Temperature And Humidity Sensor Module with LED is a small humidity and temperature sensor that you can connect to your Arduino and get readings for temperature and humidity in the environment.

Features:

• DHT11 sensor with PCB and LED indicator along with cable; 3 to 5V power and I/O, 4 pins with 0.1″ spacing
• The board has pre-built 4.7K or 10K resistor, which you will need to use as a pull-up from the data pin to VCC.
• 2.5mA max current use during conversion (while requesting data)
• Good for 20-80% humidity readings with 5% accuracy
• Good for 0-50°C temperature readings ±2°C accuracy.

Package Includes:

• 1 x DHT11 Temperature And Humidity Sensor Module.
• 3 x Female to Female Connecting cable.

If you want to build a device that is used to detect sense motion and almost always used to detect whether a human has moved in or out of the sensors range. Then this Sensor is needed for you. you can buy this sensor from bot3dprint.com at a reasonable price

The PIR Motion Sensor Detector Module HC SR501 allows you to sense motion. It is almost always used to detect the motion of a human body within the sensor’s range. It is often referred to using “PIR”, “Pyroelectric”, “Passive Infrared” and “IR Motion” sensors.

Circuit Diagram of PIR Sensor With Arduino:

 Features :

1. Infrared Sensor with Control Circuit Board
2. The Sensitivity and Holding Time are adjustable.
3. Blockade time: 2.5s (Default)
4. Sensitive Setting: Turn to Right, Distance Increases (About 7M); Turn to Left, Distance Reduce (About 3M)
5. Time Setting: Turn to Right, Time Increases (About 200S); Turn to Left, Time Reduce (About 5S).

Package Includes :

MP3-TF-16P MP3 Disk TF Card Module Serial Port is a compact and inexpensive MP3 module that can be connected directly to the speaker. Module with battery power supply, speaker, the keypad can be used alone, or through the serial port control, as the Arduino UNO or any microcontroller with a serial port module. The module itself perfectly integrated hardware decode MP3, WAV, WMA.

While the software supports TF card driver to support FAT16, FAT32 file system. It can be done by simple serial command plays the specified music, as well as how to play music and other functions, without tedious low-level, easy to use, stable and reliable.

Application

1. Car navigation voice broadcast
2. Road transport inspectors, toll voice prompts
3. The train station, bus station voice prompts security check
4. Electric power, telecommunications, financial operating room voice prompts
5. The vehicle into or out of the channel to verify the voice prompts
6. Border control channel voice prompts
7. Multi-channel voice alarm or voice guidance equipment operation
8. Electric sightseeing bus safety with voice notices
9. Electrical and mechanical equipment failure alarm
10. Fire alarm voice prompts
11. Automatic broadcasting equipment, regular broadcast.

Specifications and Features :

1. Supports sampling rates (kHz): 8 / 11.025 / 12/16 / 22.05 / 24/32 / 44.1 / 48.
2. 24-bit DAC output, dynamic range support: 90dB, SNR support: 85dB.
3. Fully supports FAT16, FAT32 file system, maximum support 32G TF card, support U disk to 32G, 64M bytes of NOR FLASH.
4. A variety of control modes are available. IO control mode, serial mode, AD key control mode.
5. The broadcast language spots feature, you can pause the background music being played. Advertising finished playing back background sound to continue playing.
6. The audio data is sorted by folder, supports up to 100 folders, folders can assign every 255 Tracks
   7,30 level adjustable volume, adjustable EQ 6.

Package Includes:

1 x MP3-TF-16P MP3 Disk TF Card Module Serial Port.