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A voltage-raising module with a maximum capacity of 8 watts follows the input supply voltage, where the output is fixed at 12 volts. The output can be changed by changing the resistors on the module, to give an output voltage of up to 20 volts.

• The possibility of adjusting the output voltage in a wide range of 5-12 volts.
• The module contains a place for installing the USB jack.
• It is not recommended that the output voltage be ten times greater than the input voltage to avoid damage and overheating.
• Equipped with indicator light.

• On-board ADXL345, it's a low cost cap-based accelerometer sensor
• Support 5V/3.3V voltage input, onboard RT9161, better performance than 1117, faster load the appropriate speed, it is ideal for high noise power supply environment
• Common Pins were lead out, Pin distance is standard 100mil (2.54mm), compatible for your new system

This RC522 RFID Card Reader Module 13.56MHz is a low-cost MFRC522 based RFID Reader Module is easy to use and can be used in a wide range of applications.

The MFRC522 is a highly integrated reader/writer IC for contactless communication at 13.56 MHz.

RC522 is the highly integrated RFID card reader which works on non-contact 13.56mhz communication, is designed by NXP as low power consumption, low cost and compact size read and write chip, is the best choice in the development of smart meters and portable hand-held devices.

MF RC522 use the advanced modulation system, fully integrated at 13.56MHz with all kinds of positive non-contact communication protocols. Support 14443A compatible answer signal. DSP deal with ISO14443A frames and error correction. Furthermore, it also supports rapid CRYPTO1 encryption to validate Mifare series products. MFRC522 support Mifare series higher speed non-contact communication, duplex communication speed up to 424 kb/s. As a new family member in 13.56MHz RFID family, MF RC522 has many similarities to MF RC5200 and MF RC530 and also has more new features.

This module can fit directly in handheld devices for mass production. The module uses the 3.3V power supply and can communicate directly with any CPU board by connecting through SPI protocol, which ensures reliable work, high reading distance.

• Integrated MF RC522
• 13.56MHz contactless communication card chip
• The low-voltage, low-cost, small size of the non-contact card chip to read and write
• Suitable for Smart meters and portable handheld devices
• Advanced modulation and demodulation concept completely integrated into all types of 13.56MHz passive contactless communication methods and protocols
• 14443A compatible transponder signals
• ISO14443A frames and error detection
• Supports rapid CRYPTO1 encryption algorithm, terminology validation MIFARE products
• MFRC522 support MIFARE series of high-speed non-contact communication, two-way data transmission rate up to 424kbit/s
• Low cost, and ideal for user equipment development
• The reader and RF card terminal design meet advanced applications development and production needs
• Can be directly loaded into the various reader molds, very convenient

• 1 x RC522 RFID Card Reader Module 13.56MHz

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.

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.

Note: This module does not come with a fitting nut or washer , you have to buy it separately (the size required is 6.6mm)

• 1 x 360° Degree Rotary Encoder

The GY-271 is supposed to have an HMC5883L, but some boards have a QMC5883L which has the same basic capability, but is not compatible with the H. The GY-271 QMC5883L 3-axis Electronic Compass Module Magnetic Field Sensor is designed for low field magnetic sensing with a digital interface and it is perfect to give precise heading information. If you get a GY-271 board and observe an I2C address of 0x0C and read back nothing but zeros from the board, then you probably have a QMC5883L chip! 

This compact sensor fits into small projects such as UAVs and robot navigation systems. The sensor converts any magnetic field to a differential voltage output on 3 axes. This voltage shift is the raw digital output value, which can then be used to calculate headings or sense magnetic fields coming from different directions.

A development board that provides a simple interface for the HMC5883L (three-axis magnetic field module).

In our Multirotor category you will find different multirotor components, to check out more multirotor controllers click on the following category,

Multirotor Controller

HMC5883L and QMC5883L module don’t have too much difference. HMC5883L is made by Honeywell. but because the production is about to be stopped, so we use a similar compass module-QMC5883L instead. QMC5883L is made by a Chinese company, they get the production authorization of HMC5883L from Honeywell, and rename it QMC5883L. So QMC5883L and HMC5883L basically are the same, they shares the same hardware design. Just their register is a bit different. We only need to change the software a bit.

• 3-axis magnetic electronic compass.
• Precise heading information.
• Fits into small projects easily.
• I2C communication.

• 1 x GY-271 QMC5883L 3-axis Electronic Compass Module
• 2 x 5 * 1 Male Burg Connectors