The STM8S003F3P6TR with 4-Channel Relay and 4-Channel Opto Input Breakout Board (5V, 4C) is a ready-to-use control and automation module designed for reliable switching and isolated input monitoring. Built around the STM8S003F3P6TR 8-bit microcontroller, this board integrates four onboard relays and four opto-isolated input channels, making it suitable for industrial control, home automation, embedded systems, and DIY electronics projects. Operating on a 5V DC power supply, the breakout board enables the STM8 microcontroller to safely control multiple AC or DC loads while receiving isolated digital input signals from external sensors, switches, or controllers. The compact and robust PCB design supports both rapid prototyping and real-world automation applications.

Features:

1. Onboard STM8S003F3P6TR 8-bit microcontroller
2. Integrated 4-channel relay outputs for load switching
3. Integrated 4-channel opto-isolated digital input channels
4. 5V DC operating voltage
5. Suitable for AC and DC load control (relay rating dependent)
6. Opto isolation for improved safety and noise immunity
7. GPIO-accessible pins for easy interfacing and expansion
8. Ideal for automation, industrial control, and DIY electronics

Specifications:

• Module Type: Microcontroller Relay & Opto Input Breakout Board
  
• Microcontroller: STM8S003F3P6TR
  
• Architecture: 8-bit STM8
  
• Operating Voltage: 5V DC
  
• Number of Relay Channels: 4
  
• Relay Type: Electromechanical Relay (onboard)
  
• Relay Control: STM8 GPIO
  
• Number of Opto Inputs: 4
  
• Input Type: Opto-isolated digital inputs
  
• Load Type: AC / DC
  
• PCB Material: FR4
• Operating Temperature: –10°C to +60°C
• Relay AC Load: 10A @ 125V AC to 10A @ 250V AC
  
• Relay DC Load: 10A @ 28V DC to 7A @ 120V DC

Package Includes:

1 × STM8S003F3P6TR with 4-Channel Relay and 4-Channel Opto Input Breakout Board (5V, 4C)