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4 Channel Relay Shield

4 Channel Relay Shield - Main image
$2.26 $3.33 In stock

Category: 擴充板

一款 4 通道繼電器擴充板(HCARDU0102),可便利且安全地讓 Arduino 透過一組繼電器與外界連接。此擴充板可透過標準排針插入 Arduino,而繼電器接點採用螺絲端子,表示無需焊接。繼電器可透過 Arduino 上的 4 個數位腳位個別控制。內建的 5V 穩壓器表示...

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Customer Reviews (4.6 / 5 · 5 reviews)

Ella J. ★★★★★

The screw terminals make wiring up my garage door sensors and lights a breeze, and the relays click firmly without any chatter. Plugged it straight into my Uno and it worked on the first try, which saved me a ton of troubleshooting time.

Owen W. ★★★★★

I was surprised how much easier this made my home automation project, because the shield just clicked right onto my existing Arduino board. The relays click cleanly and the screw terminals are solid enough to hold my 12V wiring securely.

Steven ★★★★★

The screw terminals are large enough for solid-core wire, which made my wiring much simpler than fiddling with jumper leads. Used it to switch a 12V pump on and off from my Arduino without any issues.