RM4W Wireless Relay Module 4 Channel with ESP-12F

RM4W Wireless Relay Module 4 Channel with ESP-12F The RM4W is a 4-channel Wi-Fi module based on the ESP-12F module which is based on the ESP8266 chip from Espressif. The ESP-12F includes 4MB of flash and supports 802.11b/g/n Wi-Fi SOC. The ESP-12F can be programmed serially via the 4-pin header. The card is well-protected, filtered, and easy to install. The RM4W outputs can drive loads up to 10A (resistive load). Features Based on ESP-12F Wi-Fi module. On-board 3.3V regulator AMS1117-3.3V. Power input is filtered for noise reduction. Green LED for power indication. Operating voltage DC12V. Four output relays with red LED indicators. Both normal open and normal close terminals are available. Output terminals are available through a 5mm 2-pin K128 screw clamp. Easy firmware uploading using a 4-pin header ( 3.3V, Tx, Rx, GND ). Reset push button switch is included. Two yellow LEDs for Tx and Rx signal indication. DIN Rail mountable. Four (Ø 3.5mm) mounting holes for easy installation. Dimensions: 130 X 50 X 18mm. PINOUT Specifications Parameter Value Model RM4W Core Module ESP-12F (ESP8266) — 4MB flash, 802.11b/g/n Operating Voltage DC 12V Onboard Regulator AMS1117-3.3V Relay Channels 4 independent relays Contact Types NO and NC contacts per channel Terminal Type 5mm 2-pin screw-clamp Max Switching Load Up to 10A (resistive load) per relay Indicators Power (green) TX/RX (yellow) Relay status (red) Programming Header 4-pin serial header (3.3V, TX, RX, GND) Mounting Options Mounting holes / PCB carrier / PCB bracket / DIN-rail Dimensions 130mm x 50mm x 18mm PCB Protection Input filtering and protection circuitry Applications Home and building automation for Wi-Fi controlled lighting, pumps and small loads. IoT relay control where wireless connectivity and remote switching are required. Prototyping and development platforms that require serial firmware flashing and quick relay interfacing. Small industrial control panels where DIN-rail mounting and secure screw-terminal wiring are needed. Remote switching for test equipment, CCTV, gate controllers and general PLC adjuncts. Package Contents 1x RM4W Wireless Relay Module 4 Channel with ESP-12F. Documents Manual RM4W Test Code Download