7. Interfacing with Sensors and Actuators
Interfacing sensors and actuators with microcontrollers is essential for embedded systems and IoT devices, allowing them to gather data and take actions based on that data. The chapter covers types of sensors and actuators, methods of interfacing, and the challenges faced in these applications. It emphasizes the importance of communication protocols, control logic, and power management for effective implementation.
Sections
Navigate through the learning materials and practice exercises.
What we have learnt
- Sensors convert physical quantities into electrical signals that microcontrollers can read, either in analog or digital form.
- Actuators perform actions based on signals received from microcontrollers, often using techniques such as PWM for control.
- Practical applications of sensor and actuator systems include automation, robotics, and feedback control systems.
Key Concepts
- -- Sensor Interfacing
- The process of connecting sensors to microcontrollers to convert physical quantities into electrical signals that can be processed.
- -- Actuator Control
- The mechanisms by which microcontrollers control actuators to perform actions, often using PWM or H-Bridge circuits.
- -- AnalogtoDigital Conversion (ADC)
- The process that converts an analog signal into a digital format that microcontrollers can interpret.
- -- Communication Protocols
- Standards like I2C, SPI, and UART that facilitate data transfer between sensors and microcontrollers.
Additional Learning Materials
Supplementary resources to enhance your learning experience.