WiFi

Relay Modules with WiFi Interface

Wi‑Fi‑enabled relay boards combine wireless connectivity with robust switching capability, letting you control high‑current loads from any browser‑based interface. Built around a widely supported microcontroller, they can be programmed using familiar Arduino‑style tools, which simplifies integration into existing codebases and accelerates development cycles. Multiple relay channels, ranging from a couple to several dozen, provide flexibility for projects that need to drive motors, solenoids, lights or other inductive devices, while built‑in digital inputs with pull‑up resistors allow direct monitoring of voltage‑free contacts.

Key attributes include the number of independently controllable channels, the 16 A current rating per relay, the ease of web‑based control, and compatibility with standard development environments. These factors make the boards well suited for remote automation, robotics, and sensor‑actuator networks where reliable, network‑wide actuation is essential.

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Programmable 2 Channel 16 Amp Relay Module with WiFi (ESP32LR20)

Code: MCU-060254

The ESP32LR20 is a programmable WIFI connected relay module using the popular ESP32 and can be programmed like an Arduino. It provides 2 relays capable switching up to 16Amps. A built in web page allows the relays to be controlled from any web browser.

$ 65.95

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Programmable 4 Channel 16 Amp Relay Module with WiFi (ESP32LR42)

Code: MCU-060253

The ESP32LR42 is a programmable WIFI connected relay module using the popular ESP32 and can be programmed like an Arduino. It provides 4 relays capable switching up to 16Amps and 2 digital inputs with pull-ups than can interface directly with volt free contacts. A built in web page allows the rel...

$ 89.95

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Programmable 8 Channel 16 Amp Relay Module with WiFi (ESP32LR88)

Code: MCU-060252

The ESP32LR88 is a WIFI connected relay module using the popular ESP32 and can be programmed like an Arduino. It provides 8 relays capable switching up to 16Amps for driving solenoids or inductive loads and 8 digital inputs with pull-ups than can interface directly with volt free contacts. A buil...

$ 148.95

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