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4.7

8-Channel Relay Module Board with optocoupler coin battery holder ie 57600bps) Real-Time Feedback Function MEC8008-6-wT-3 Neodymium strong magnetic speaker HeatSink:None

SKU: 78532353770
USD200.00 USD235.00

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Shipping Estimate
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Ships within 48 hours · Estimated delivery Sep 20 - Sep 25

Description

8 Channel Relay Module Board with optocoupler coin battery holder ie 57600bps) Real Time Feedback Function MEC8008 6 wT 3 Neodymium strong magnetic speaker HeatSink:None ie 57600bps) The MAX7219 does all the control and refresh work for you in driving the 8x8 matrix display

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