1. Complexity: The breadboard only requires wires and components to be plugged in. The operation is complicated, the circuits are confusing, and it is easy to make mistakes. The PCB version is simple to operate, easy to mark, and the circuits are clear

2. Connection method: Breadboard is a plug-in circuit, and PCB is a welding circuit. The former is easy to cause poor contact, while the latter is more stable

3. Application scope: Breadboard is suitable for circuits with few components and poor signal quality. The interference requirements are low, the circuit current is not large, and the circuit for temporary testing is relatively simple and low-cost; the PCB board has a multi-layer type, which can realize the welding of almost all circuits, and graded signal shielding is also easy to implement, but it requires Professional software design and processing, the cost is relatively high

Though I can think of this for now, it should be enough...