What are the Differences Between HC-05 vs. HC-06? The HC-05 and HC-06 are both Bluetooth modules with different features. The HC-06 is the ideal choice for projects that need to have a large range without interference. On the other hand, the HC-05 is an excellent choice if you only need to communicate within a limited range or with objects that are close together. Keep in mind that both modules also have their pros and cons. For instance, the HC-06 supports multiple connections at once, but it must be powered by an independent power supply. The...