OpenTimer is a powerful IoT tool that lets you configure, control, and automate your programmable timers directly from your smartphone using Bluetooth. Designed for alarm clocks, schools, industries, offices, and smart home setups, OpenTimer allows you to create precise schedules, trigger devices automatically, and manage your timers in just a few taps.

Key Features

Bluetooth control: Connect instantly to any compatible OpenTimer device.

Easy scheduling: Create, edit, and manage timer programs with a clear and intuitive interface.

Reliable automation: Set daily, weekly, or custom schedules for sirens, lights, motors, pumps, school bells, or industrial equipment.

Real-time synchronization: Update device configurations instantly via Bluetooth.

Secure and local: No internet required — everything runs directly on your device.

Device monitoring: View the current status, next scheduled action, and active programs.

Customizable settings: Adjust time formats, notification preferences, and device behavior.

Perfect for

School bell systems

Custom alarm clocks

Industrial automation

Agricultural equipment

Smart home installations

Any setup requiring precise timer-based control

Why OpenTimer?

OpenTimer eliminates the complexity of traditional timer programming. With a clear interface and powerful features, you gain complete control over your devices — all without needing Wi-Fi, servers, or complicated setups.

Take full control of your programmable timers.
OpenTimer — Precision. Simplicity. Reliability.