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GY-271 Compass Module Features Magnetic current and field have directly relation with each other. When current flows in a wire (electrons start travelling in one direction), a magnetic field is created. The main idea of compass sensors is based on this relationship. The direction of the earth's magnetic field affects the flow of electrons in the sensor. By measuring these changes in current, the sensor will be able to detect direction.The GY-271 module uses the QMC5883L chip to detect magnetic fields an...

MCP23017-E/SS 16-Channel I/O Expansion Module Features The MCP23017-E/SS 16-Channel I/O expansion module is used in projects that require a large number of input-output pins. This development board communicate to the microcontroller using I2C interface and increases the number of input-output pins of microcontroller. The added pins can be easily set as input, output and interrupt. MCP23017-E/SS 16-Channel I/O Expansion Module Pinout This Module has 27 pins:7 pins on ...