Description: 1. Overview: The 4-Channel 5V Relay Board is a versatile IoT component designed to switch AC or DC loads using low voltage signals. It features four separate channels, each capable of handling up to 30A and 250V AC or equivalent in DC. 2. Features: Each channel includes an opto-isolated relay with a built-in diode for flyback protection, ensuring safe operation. The board also offers LED indicators for each relay status and adjustable high impedanceNormally Open (NO) and Normally Closed (NC) terminals. 3. Compatibility: This board can be used with various microcontrollers, single-board computers, or other IoT devices through its universal 3.3V/5V TTL level input. It's suitable for Arduino, Raspberry Pi, and other similar platforms. 4. Applications: The 4-Channel 5V Relay Board is widely used in various projects such as home automation systems, industrial control panels, HVAC applications, and robotics. Its ability to handle AC or DC loads makes it a popular choice for numerous IoT
| Specification | Details |
|---|---|
| Number of Relays | 4 Channels |
| Relay Type | SPDT (Single Pole Double Throw) |
| Voltage Input | 5V DC |
| Current Rating | 10A per Channel |
| Switching Frequency | up to 50 Hz |
| Operating Temperature | -40°C to 85°C |
| Power Supply | External 5V 1A |
| Interface | TTL (5V) Level Shifted |
| Dimensions | approximately 7.0cm x 4.8cm |
| Weight | approximately 20 grams |
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