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So on this small board it has Wifi
Not easy to pull off
which means that it will buzz at a predefined frequency (2300 ±300 Hz) on its own even when you just apply steady DC power
Supply voltage (Max) : 5
The batteries will not be overcharged
Relay Module (2 Channels - 24V) magnet So on this small boardIntroduction : It is a 2 channel relay board, which can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, PLC, etc. It is also able to control various appliances and other equipment with large current. used where it is necessary to control a circuit by a low power signal (with complete electrical isolation between control and controlled circuits), or where several circuits must be controlled by one signal.
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