If the circuit is simple, a single-layer PCB is enough. The differences between a double-layer PCB and a single-layer PCB include:
- Single-layer PCB
A single-layer PCB is very cheap to produce, and the procedure is simple. It is suitable for a simple suit. However, if there is a crossing line, the size of the PCB will increase. So they are seldom used in complex circuits.
- Double-layer PCB
The double-layer PCB can achieve complex circuits with less space. But their production is also more complicated than single-layer PCB and more costly.
More reading: Guide of LED PCB Assembly
