โมดูลรีเลย์ 5V 1 ช่อง REL5-1CH 5V relay module 1-Channel Optocoupler Relay Module 3.3-5v Arduino/ESP compatible


Specifications: (Please refer to the image introduction for details)

• Operating Voltage: 5V
• Trigger Voltage: 5V version: 3.3V–7V trigger
• Trigger Current: About 3–5mA (suitable for single-chip microcontroller control, requires IO port push-pull output capability)
• Control Voltage:
  • AC: 0–250V
  • DC: 0–30V
• Control Current: 0–30A
  • Can be used as a development board module for single-chip microcontrollers or as a household appliance control module.

Features:

1. Fully compatible with 3.3V and 5V TTL control signals.
2. Can control either DC or AC signals and handle AC loads of 0–250V.
3. Equipped with one normally open (NO) terminal and one normally closed (NC) terminal.
4. Comes with control status indicators:
   • When the control signal is high-level, the relay activates, and the indicator lights up.
   • When the control signal is low-level, the relay deactivates, and the indicator turns off.
5. Uses triode drive to control the relay coil.
6. Features optocoupler isolation for strong anti-interference capability and stable signals.

Function:

• Converts weak electrical signals (low voltage control signals or electrical signals from microcontrollers) to strong electrical signals.

Usage:

• The module's low-level input control signal connects to the GND pin.
• The board pin marked "5V" is divided into the relay's 5V power supply (negative and positive terminals).
• Control the terminal to output high or low level signals to the relay control.