HKD ESP8266 2-Channel WiFi Relay Module 5V 10A with ESP-01
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- 17 Oct 2026
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HKD ESP8266 2-Channel WiFi Relay Module 5V 10A with ESP-01
Checked Today
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Description
The HKD ESP8266 2-Channel WiFi Relay Module is a compact and powerful module designed for remote wireless control of appliances and devices. With the onboard ESP-01 WiFi module and 8-bit MCU, it supports two working modes: direct connection to your smartphone, or connection through a WiFi router for extended range.
This relay module integrates two high-power relays (5V, 10A) capable of switching both AC (up to 250V) and DC (up to 30V) loads, making it ideal for smart home automation, IoT projects, and DIY electronics. The module supports SmartConfig technology, allowing quick WiFi password setup through the companion app, and includes indicator LEDs for relay states, modes, and connection status.
When the ESP-01 is removed, the module can also function as a USB relay module, providing extra flexibility.
Features:
- Onboard ESP-01 WiFi module and 8-bit MCU (N76E003/STM8S003)
- Two operation modes:
Mode 1: Direct smartphone-to-WiFi module connection
Mode 2: Smartphone and WiFi module on the same router - Transmission distance:
Up to 100m in open space (direct mode)
Extended range via router (depends on router signal) - Onboard 2 × 5V 10A relays for AC/DC load control
- Relay rated: 10A / 250V AC or 10A / 30V DC
- Relay lifespan: 100,000 cycles
- SmartConfig technology for easy WiFi password setup
- Onboard LEDs for relay status, working mode, and connection state
- Built-in diode protection and fast response time
- Preserved UART debug interface and MCU programming interface
- Can act as a USB relay module when ESP-01 is removed
- Compact size: 59 × 40mm
Specifications:
- Power Input: 5V DC (IN+, IN-)
- Relay Output: 10A / 250V AC, 10A / 30V DC
- MCU: N76E003 / STM8S003
- WiFi Module: ESP-01 (ESP8266)
- Transmission Distance: Up to 100m (open space)
- Interfaces: TX, RX (UART), SWIM, NRST (programming)
- Dimensions: 59 × 40mm
What's in the box
1 x HKD ESP8266 2-Channel WiFi Relay Module 5V 10A with ESP-01
