HC-05 Bluetooth Module heatsink orientation

orientation

To use this relay module first you have to decide whether you want to connect or disconnect your load when relay is operated

There is a constant 'quiescent' current draw of 6mA

As like other optocouplers

HC-05 Bluetooth Module heatsink orientationThe IoT enabled projects require two way communication between the microcontroller and various sensors. There are various methods you can do that, Wired Communication, WiFi, Bluetooth are some among them. The HC 05 Bluetooth Module adds wireless communication to your project to communicate via Bluetooth to any Bluetooth enabled Laptop or Mobile Device. The module communicates at 9600 baud rate via USART protocol. It can be used in applications like