USB to TTL Serial Cable Serial Wireless No soldering required — plug-and-play

No soldering required — plug-and-play assembly

It comes with a 170-point mini breadboard that snaps onto the prototyping area

The 4 Channel Relay Module 5V allows you to independently control four high-voltage AC or DC loads from a single microcontroller

Note: Light and different displays may cause the color of the item in the picture a little different from the real thing

Security and intrusion detection

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