Programmable Logic Controller vs Microcontroller

Developers should learn PLC programming when working in industrial automation, manufacturing, or control systems engineering, as it enables the automation of machinery and processes in factories, power plants, and infrastructure meets developers should learn about microcontrollers when building embedded systems, iot devices, robotics, or automation projects that require dedicated, low-cost hardware control. Here's our take.

Programmable Logic Controller

Nice Pick

Developers should learn PLC programming when working in industrial automation, manufacturing, or control systems engineering, as it enables the automation of machinery and processes in factories, power plants, and infrastructure

Pros

• It is crucial for applications requiring robust, real-time control with high reliability, such as in automotive assembly, food processing, or water treatment plants, where PLCs handle tasks like motor control, sensor monitoring, and safety interlocks
• Related to: ladder-logic, industrial-automation

Cons

• Specific tradeoffs depend on your use case

Microcontroller

Developers should learn about microcontrollers when building embedded systems, IoT devices, robotics, or automation projects that require dedicated, low-cost hardware control

Pros

• They are essential for applications needing real-time processing, minimal power usage, or direct interaction with sensors and actuators, such as in smart home devices or industrial machinery
• Related to: embedded-systems, arduino

Cons

• Specific tradeoffs depend on your use case

The Verdict

These tools serve different purposes. Programmable Logic Controller is a tool while Microcontroller is a platform. We picked Programmable Logic Controller based on overall popularity, but your choice depends on what you're building.

The Bottom Line

Programmable Logic Controller wins

Based on overall popularity. Programmable Logic Controller is more widely used, but Microcontroller excels in its own space.