Arduino 5V 16-way relay module optocoupler isolation low level trigger
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This 5V 16-channel relay module features optocoupler isolation and low-level trigger control, making it ideal for switching high-current devices with microcontrollers like Arduino. Each relay supports up to 10A at 250V AC or 30V DC, and the board includes LED indicators for relay status. Perfect for home automation, industrial control, and DIY electronics projects.
add_circle The Upside
- check Allows control of multiple high-power devices from a microcontroller
- check Optocoupler isolation protects the control circuit
- check Clear LED status indicators
remove_circle The Downside
- close Requires 200mA+ supply current, may need external power
- close Low-level trigger may be less intuitive for some users
- close Relatively large board size (188x90x20mm)
Specifications & features
Key features
- check_circle 16-channel relay output
- check_circle Optocoupler isolation for signal protection
- check_circle Low-level trigger (active low)
- check_circle High-current relays: 10A @ 250V AC / 30V DC
- check_circle LED indicators for each relay
Specifications
Board Dimensions
188 x 90 x 20 mm
Relay Contact Rating (AC)
250V @ 10A
Relay Contact Rating (DC)
30V @ 10A
Supply Current
200mA+
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