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ESP8266
Comet Instruments·Custom LED Board

Programmable Cyclic Timer (WiFi Controlled)

ESP8266 WiFi relay cyclic timer: ON for X seconds — OFF for Y seconds, repeating forever. Web-configurable, flash-persistent settings.

ESP-CYCLICESP8266
Microcontroller:ESP8266 NodeMCU (ESP-12E)
Relay Output:1 relay (GPIO14 / D5)
ON Time Range:1 second to 24 hours
OFF Time Range:1 second to 24 hours

Pricing

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+18% GST applicable · Min. order: 1 unit

In Stock
1 Year Warranty
HSN: 85371000
About This Board

ESP8266-based WiFi cyclic relay timer that turns a load ON for a set duration, then OFF for a set duration, repeating indefinitely without any manual intervention. Default cycle is 10 minutes ON / 10 minutes OFF, configurable from 1 second to 24 hours via the built-in web interface at http://relay.local. Settings are saved to flash memory and survive power cuts. A manual override lets you immediately force the relay ON or OFF and restart the cycle. Ideal for intermittent pump control, irrigation systems, industrial lubrication, and chemical dosing.

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
MicrocontrollerESP8266 NodeMCU (ESP-12E)
Relay Output1 relay (GPIO14 / D5)
ON Time Range1 second to 24 hours
OFF Time Range1 second to 24 hours
Default Cycle10 min ON / 10 min OFF
ConnectivityWiFi AP (2.4 GHz), mDNS (relay.local)
PersistenceSettings saved to LittleFS (flash)
Manual OverrideForce ON / Force OFF via web UI
Power Supply5V DC (USB / adapter)
Setup Manual

ESP-CYCLIC Setup Manual

PDF setup manual coming soon. Will cover wiring diagrams, initial configuration, web interface walkthrough, calibration steps, and firmware update instructions.

Contact us to receive a copy of the latest firmware documentation.

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Live Demo

Live Demo — Coming Soon

This section will include a hands-on walkthrough of the ESP-CYCLIC— setup images, a live demonstration video, and real-world deployment examples.

Reach out to schedule a live demo or request a sample unit.