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The board is just half the size of a Raspberry Pi Model A+
Power Supply: 3
supports HR
Operating temperature: -40 to +80
A screw terminal block provides a means of powering the attached servos from an external 5V PSU and so the number of servos you can drive from your microcontroller and so is not limited by the microcontroller’s power supply
Relay Module 8 Channels - 5V) Cathode The board is just halfIntroduction : It is a 8 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 equipments 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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