Wiring the ITG3200 / ADXL345 / HMC5883L 9DOF RAZOR IMU AHRH UART SPI i2C Communication

This is the 9DOF (Degrees Of Freedom) IMU (Inertial Measurement Unit) module that has 3 integrated sensor in one module board the ITG-3200 (Triple Axis Digital Output Gyroscope), ADXL345 (13bit Resolution ±16g Triple Axis Accelerometer), HMC5883L (Triple Axis, Digital Magnetometer)

How MQTT Telemetry Transport Protocol Works for IOT Test with Mosquitto in Open GPIO Micro Computer

MQTT (Message Queuing Telemetry Transport) Protocol is a M2M (Machine to Machine) lightweight messaging protocol widely used in IOT (Internet of Things) that provides a resource constrained network clients. Almost IOT cloud platform support MQTT protocol to send and receive