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HC-06 RF Wireless Bluetooth Transceiver Slave Module RS232 / TTL to UART converter and adapter. This module is an Upgrade from the older HC-05 and has better stable Firmware. Features: Bluetooth Serial Transceiver Module with backboard. This module includes key interface and state interface compared with Smart Bluetooth Module Baseboard. The Bluetooth Module Baseboard can be compatible with slave mode. Works for Bluetooth TTL transceiver module which allows your target device to both senders receive the TTL data. The key interface on the baseboard is the master mode button and can be controlled by high level from external MCU, and then this module will search again automatically. Built in antenna Bluetooth version: V2.0 EDR
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The HDPMO1 is a dual-axis magnetic sensor, it is a complete sensing system with on-chip signal processing and integrated I2C bus, allowing the device to be connected directly to a microprocessor eliminating the need for A/D converters or timing resources. It can measure magnetic field with a full range of ±2 gausses and a sensitivity of 512counts/gauss @3.0 V at 25°C.
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Bring oscillation source Audino 9012 drive Work Voltage:3.3V-5V Set bolt hole, easy to assemble PCB Dimension:3.3cm*1.3cm It and your Arduino will be able to play melodies. This is a small buzzer for the Sensor Shield. It creates different sound based on the different frequency of I/O toggling. Pin Definition : Vcc : 3.3V-5V GND : The Ground I/O : I/O Interface of SCM
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Feature: Internal with logic level conversion circuit. No need external 5V level to turn into a 3.3V level The power input port with anti-anti-circuit. To avoid accidental power plug reversed, leading to the module burned HM-10, HM-11 series Bluetooth module using TI CC2540 chip, configuration 256Kb space, support AT commands, you can change the role (master and slave mode) and the baud rate, the device name, Pairing password and other parameters, convenient and flexible.