DC5-80V ESP8266 Wireless Wi-Fi 1 Channel Relay Module

DC5-80V ESP8266 Wireless Wi-Fi 1 Channel Relay Module is a versatile and robust solution that combines the powerful ESP8266 Wi-Fi module with a wide voltage input range and a high-current relay for reliable remote control. This module allows users to directly power the Wi-Fi controller from diverse DC sources, accepting voltages from 5V up to 80V. Consequently, you can seamlessly integrate it into industrial, automotive, or existing infrastructure that utilizes non-standard low voltage supplies without needing additional voltage regulation. The integrated ESP-01/ESP-01S module handles network communication, therefore making it a perfect tool for creating smart home switches, industrial automation devices, and remote power controllers that require secure and reliable wireless operation.

Key Features:

• Wide Voltage Input: Accepts a broad DC input range from 5 V to 80 V, providing exceptional flexibility in power sourcing for various applications.
• High Current Relay: Features a high-quality, single-channel relay capable of switching high-power AC or DC loads (typically 10A at 250V AC or 30V DC).
• Integrated ESP8266 (ESP-01S): Utilizes the popular ESP-01S module, granting full programmability via the Arduino IDE or MicroPython for custom firmware development.
• Robust Power Circuitry: Includes on-board step-down and protection circuits to safely handle the wide input voltage, ensuring stability for the 3.3V ESP8266 core.
• Wi-Fi Connectivity: Enables remote control and monitoring via 802.11 b/g/n networks, perfect for IoT projects.

Technical Specifications:

• Control Chip: ESP8266 (ESP-01S or compatible module)
• Input Voltage (V_IN): DC 5 V – 80 V
• Relay Type: Single Channel, Normally Open (NO) and Normally Closed (NC) contacts
• Max Load Voltage: 250 V_AC / 30 V_DC
• Max Load Current: 10 A (≤ 250 V_AC), 10 A (≤ 30 V_DC)
• Wi-Fi Standard: 802.11 b/g/n
• Core Operating Voltage: 3.3 V (Regulated on-board)

Mechanical Specifications:

• Terminal Blocks: Screw terminals for secure connection of input power and relay contacts (AC/DC load).
• Relay Indication: On-board LED indicates the current relay status (ON/OFF).
• Mounting: Includes mounting holes for easy installation into enclosures or fixed panels.
• Module Finish: High-quality PCB with clear silkscreen markings.

Dimensions:

• Board Length: ≈ 70 mm
• Board Width: ≈ 27 mm
• Board Height (Max): ≈ 20 mm
• Mounting Hole Diameter: ≈ 3.1 mm

Pinout and Wiring:

• V+/V-: Connect these terminals to the DC 5 V to 80 V power supply for the entire module.
• NC (Normally Closed): Connect one side of the load to this pin for circuits that should be ON when the relay is de-energized.
• COM (Common): Connect this pin to the power source of the load (AC or DC).
• NO (Normally Open): Connect the other side of the load to this pin for circuits that should be ON when the relay is energized.
• Programming Interface: Exposed pins allow connection of a USB-to-TTL converter for uploading new firmware to the ESP8266 (requires GND, VCC, TX, RX, and GPIO0 access).

Datasheet Reference:

• Download ESP8266 Series Modules User Manual (Reference for ESP-01S)

Commonly Used in:

• Smart Home DIY Projects: Controlling lights, fans, and garage door openers via smartphone or voice assistants.
• Automotive and Vehicle Control: Switching high-voltage accessories or circuits where the 12V/24V power system needs isolated Wi-Fi control.
• Industrial Prototyping: Creating remotely controlled switches for low-power industrial machinery or testing rigs.

Applications:

• Remote Appliance Switching: Turning on/off household appliances or charging stations remotely via Wi-Fi.
• Timed Control Systems: Implementing scheduling and countdown timers for power devices using custom firmware.
• Security Systems: Integrating with alarm systems to remotely control sirens, lights, or locks.
• Energy Management: Monitoring and controlling the power draw of devices to optimize consumption.

Equivalent Models:

• ESP-01 Wi-Fi Relay Module (5V only): A similar product, however, it lacks the wide DC 5-80V input capability, restricting its power flexibility.
• Sonoff Basic Module: A fully enclosed, consumer-ready smart switch that uses an ESP8266, but it is not provided as a bare, programmable module.
• NodeMCU with External Relay Shield: This combination achieves the same result, but ultimately, the DC5-80V module integrates these components into a single, compact PCB.

Package Includes:

• 1 x DC5-80V ESP8266 Wireless Wi-Fi 1 Channel Relay Module