HS-088 Dingdong Tone Doorbell Music Voice Module

HS-088 Dingdong Tone Doorbell Music Voice Module is a compact and complete solution for embedding a classic doorbell sound into any electronic project, security system, or standalone chime unit. This low-power voice module is built around a specialized integrated circuit that houses a fixed “Ding-Dong” tone generator, requiring minimal external components to function—typically just a power source and a momentary trigger. Its simple interface allows designers and hobbyists to effortlessly add an audible alert or welcoming chime, making it an ideal component for everything from custom home automation projects to educational electronics kits. Powering the module initiates a short, clean, and recognizable dual-tone output directly to an integrated speaker or a small external speaker.

Key Features:

• Integrated Voice Circuit: Contains a fixed “Ding-Dong” two-tone chime within a single, minimal IC package.
• Simple Trigger Mechanism: Operates on a single low-side (ground) or high-side (V_CC) trigger signal to activate the audio output.
• Low Power Consumption: Designed for efficiency, drawing minimal current in standby mode.
• Direct Speaker Drive: Can often drive a small 8Ω speaker directly without requiring an external audio amplifier circuit.
• Robust Performance: Delivers a consistent and clear audio tone suitable for notification and alert systems.

Technical Specifications:

• Operating Voltage (V_CC): 3 V DC to 5 V DC (Verify specific model)
• Standby Current: ≈ 0.5 µA
• Operating Current (Peak): ≈ 15 mA to 30 mA (depending on speaker load)
• Tone Output Duration: ≈ 1.5 seconds
• Operating Temperature: -20°C to +70°C

Mechanical Specifications:

• Format: Small PCB module with surface-mount components.
• Output: Two-pin header for speaker connection.
• Speaker Compatibility: Typically 8Ω small cone speaker.

Dimensions:

• PCB Size: ≈ 15 mm x 12 mm
• Speaker Diameter (if included): Varies, typically 20 mm to 30 mm
• Thickness: ≈ 5 mm
• Weight: ≈ 1 g (module only)

Pinout and Wiring:

• V_CC: Connect this pin to the positive supply voltage (e.g., 3V to 5V DC).
• GND: Connect this pin to the circuit ground (0V).
• TRIG (Trigger): A momentary logic high or low signal applied to this pin activates the “Ding-Dong” tone sequence.
• SPK+ / SPK-: These terminals connect directly to the positive and negative leads of the external speaker.

Datasheet Reference:

• Download HS-088 Voice Module Specification

Commonly Used in:

• Makers and Hobbyists: Used in small electronic projects needing a recognizable alert sound.
• DIY Doorbell Systems: Serving as the main audio generator for simple wired and wireless doorbells.
• Toy and Novelty Electronics: Adding sound effects to simple battery-powered devices.

Applications:

• Security Alarms: Providing a distinct entry or exit chime.
• Infrared/PIR Sensor Alerts: Chime upon detecting motion for basic intrusion alerts.
• Microcontroller Projects: Providing quick audio feedback for button presses or event completions in Arduino or ESP systems.

Equivalent Models:

• HT8220: Another common integrated doorbell melody chip.
• Recorded Sound Modules (e.g., ISD series): More complex modules offering custom voice recording and playback.
• Simple Piezo Buzzers: Lower cost alternatives that produce a generic beep rather than a specific tone.

Package Includes:

• 1 x HS-088 Dingdong Tone Doorbell Music Voice Module (may include small speaker)