4/8 Channel 5V Optocoupler Relay Module For Arduino PIC AVR DSP ARM NEW
ab 3,17 €
1Pcs 4 or 8 Channel 5V Relay Shield Module Board Optocoupler module For Arduino ARM AVR(depend on you choose). This relay module is 5V active low. Channel: 4/8 channel. Red working status indicator lights are conducive to the safe use.
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