WiFi Interval Timer Relay (RTC)
ESP8266 + DS3231 RTC daily schedule relay timer. Set ON/OFF times of day via WiFi web UI. RTC-backed, survives power cuts.
Pricing
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+18% GST applicable · Min. order: 1 unit
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ESP8266-based clock-scheduled relay timer using a DS3231 RTC module. Unlike a cyclic timer, this board turns the relay ON at a specific time of day and OFF at another specific time — making it ideal for daily scheduled automation like morning/evening lighting, HVAC switching, irrigation, or equipment startup/shutdown. Set ON time, OFF time, and sync the RTC clock all from the built-in WiFi web interface. The DS3231 RTC keeps accurate time through power cuts. Also reports the DS3231 onboard temperature sensor reading.
All Comet Instruments LED boards are designed and manufactured in-house at our Indore facility. Each unit is tested before dispatch. Firmware is open for customisation on request. Bulk pricing available for orders of 5+ units.
Technical Specifications
Setup Manual
ESP-INTVL Setup Manual (Official PDF)
Download the official setup guide. This manual covers detailed wiring diagrams, initial WiFi network setup, web interface dashboard controls, calibration steps, and parameter adjustment guidelines.
Format: PDF Document
Live Demo
Live Demo — Coming Soon
This section will include a hands-on walkthrough of the ESP-INTVL— setup images, a live demonstration video, and real-world deployment examples.
Reach out to schedule a live demo or request a sample unit.