Home Accessories Buzzer Module for Heltec WiFi LoRa 32 (V4) Expansion Kit
N30 - 3D-Printed Meshtastic Case for ESP32 LoRa V3 Module Board with Type C & Antenna Interface, 2 PCS Back to Accessories Temperature & Humidity Sensor (GXHTV3) for Heltec WiFi LoRa 32 (V4) Expansion Kit

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Buzzer module for Heltec WiFi LoRa 32 development board, black PCB with electronic components.
Buzzer module for Heltec WiFi LoRa 32 V4, black PCB with connector pins, IoT expansion kit
Buzzer module for Heltec WiFi LoRa 32 development board, black PCB with electronic components.
Buzzer module for Heltec WiFi LoRa 32 V4, black PCB with connector pins, IoT expansion kit

Buzzer Module for Heltec WiFi LoRa 32 (V4) Expansion Kit

Sale price $9.99 USD

1. Native V4 Compatibility – Designed specifically for Heltec WiFi LoRa 32 (V4) Expansion Kit.

2. Plug-and-Play Integration – Direct B2B connector installation, no additional wiring required.

3. Reliable Audio Output – Stable tone generation for alerts and system notifications.

4. Low Power Design – Optimized for battery-powered IoT and embedded systems.

5. Compact Form Factor – Lightweight and space-efficient module design.

Product Description

⚠️ Important Note: This module is exclusively compatible with the Heltec WiFi LoRa 32 (V4) Expansion Kit .

Buzzer Module for Heltec WiFi LoRa 32 (V4) Expansion Kit

  1. The Buzzer Module is a dedicated audio feedback accessory designed for the Heltec WiFi LoRa 32 (V4) ecosystem.
  2. It enables clear sound alerts, status notifications, and event signaling for embedded and IoT applications.
  3. With direct B2B interface connectivity, the module offers true plug-and-play integration, eliminating wiring complexity and ensuring stable electrical and mechanical performance.

 

Applications

  • IoT device status alerts and notifications
  • Alarm and warning systems
  • Mesh network event signaling
  • Embedded system audio feedback
  • Smart home and automation indicators

 

Package Includes

  • 1 × Buzzer Module

 

Note

This module is designed exclusively for the Heltec WiFi LoRa 32 (V4) Expansion ecosystem and is not compatible with other Heltec or ESP32 boards.

Specification

Item Specification
Product
Buzzer Module
Compatibility
For Heltec WiFi LoRa 32 (V 4) Expansion Kit
Operating Voltage
1 ~ 25 V
Operating Current
Max. 5mA (at 3V)
Resonant Frequency
4000 Hz
Capacitance
12000 ±30% pF (100Hz, 1V)
Sound Pressure Level
≥ 65 dB (measured at 10 cm, 3V)
Oprating Temp.
-40°C to 85°C
Storage Temp.
-40°C to 85°C
Dimensions
22.20 × 10.40 × 3.00 mm
Application
IoT devices, Mesh network, Smart home automation indicators

Warranty & After-Sales

Many of our products are handcrafted, which may result in minor variations or imperfections. If you experience any quality-related issues withinone year of purchase, we will offer afull refund or a replacement shipment. Please contact our support team with photos or videos of the issue, and we will assist you accordingly.

Technical Support & Resources

Buzzer Module for Heltec WiFi LoRa 32 (V4) Expansion Kit 1
Product Manual Download
Buzzer Module for Heltec WiFi LoRa 32 (V4) Expansion Kit 2
Product Certificates
Buzzer Module for Heltec WiFi LoRa 32 (V4) Expansion Kit 3
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