KEYESTUDIO 4 Channel Relay Shield 5V Arduino Controller R3 ARM | Shop The World
From USA
NewKEYESTUDIO
KEYESTUDIO 4 Channel Relay Shield 5V for Arduino Controller R3 ARM PIC AVR STM32 Raspberry Pi HIGH Level Trigger Relay Module Expansion Board
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Products from the USA may come with an input voltage of 110V–120V, requiring a step-down transformer. Check the device wattage to select the correct power converter.
•It integrates 4-channel 5V relay module, and is fully compatible with R3 control board.
•The 4-channel relay module shield is active at HIGH level.
•Relay Terminals: high-power, high-current high voltage can be connected to the device.
•Separately connect the 4-channel relay to digital port 4, 5, 6, 7 on the R3 control board, then through controlling output HIGH or LOW to control the relay on and off.
•How to use: search for "keyestudio wiki ks0251" in Google Chrome to get the wiki online tutorial for this product.
From USA
