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 relays to be controlled from any web browser.
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The ESP32LR40 is a 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. The normally open relay contacts have snubbers fitted across
them, and can drive inductive loads such as contactors and solenoids.
Power for the board is 12v dc, which can be provided by a standard universal wall power supply. A 1A or greater supply should be selected.
Built around the ESP-WROOM-32, the module is fully customisable around open source software.
Free Android and iPhone Apps are available to remotely control this module.
1. Simple plain text commands sent to the module.
2. HTML commands
3. MQTT
4. A built in webpage