DX-BT18 Bluetooth ORIGINAL
DX-BT18 Bluetooth ORIGINAL
DX-BT18 Bluetooth Module - ORIGINAL
The DX-BT18 is an original, dual-mode Bluetooth module supporting both BLE 4.2 and Classic SPP communication. Designed for seamless wireless data transfer in embedded systems, IoT devices, and microcontroller projects, this compact module offers reliable connectivity with ultra-low power consumption. Available now from The Tech Depot, Bengaluru, with fast shipping and full technical support.
Specifications
| Module | DX-BT18 Bluetooth Dual-Mode Module |
| Bluetooth Version | Bluetooth 4.2 (BLE + Classic SPP) |
| Chipset | BK3432 (or equivalent dual-mode IC) |
| Operating Frequency | 2.4 GHz ISM Band |
| Communication Interface | UART (TTL Level Serial) |
| Default Baud Rate | 9600 bps (configurable via AT commands) |
| Supported Baud Rates | 1200 - 1382400 bps |
| Operating Voltage | 3.3V - 6V DC |
| Logic Level | 3.3V TTL |
| Transmit Power | Up to +4 dBm |
| Communication Range | Up to 10 meters (open air, line of sight) |
| Receiver Sensitivity | -80 dBm typical |
| Operating Current | ~8 mA (active), ~1 mA (standby/sleep) |
| Profiles Supported | SPP (Serial Port Profile), BLE GATT |
| Configuration Method | AT Commands via UART |
| Roles Supported | Master / Slave (configurable) |
| Default Device Name | DX-BT18 |
| Default Pairing PIN | 1234 or 0000 |
| Antenna | Onboard PCB Antenna |
| Dimensions | Approx. 27 mm x 13 mm x 2 mm |
| Pin Count | 6 pins (VCC, GND, TXD, RXD, STATE, EN/KEY) |
| Operating Temperature | -20 degreesC to +75 degreesC |
| Compatibility | Arduino, ESP32, STM32, Raspberry Pi, PIC, and most 3.3V/5V MCUs |
| Mobile Compatibility | Android and iOS (BLE mode for iOS, SPP for Android) |
| Authenticity | 100% Original Module |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 Technical Assistance |
Key Features
- Dual-Mode Bluetooth 4.2: Supports both Classic SPP for legacy Android communication and BLE (Bluetooth Low Energy) for iOS and modern applications in a single module
- Simple UART Interface: Connects directly to any microcontroller via standard TX/RX serial pins - no complex protocol stacks required
- AT Command Configuration: Easily change device name, baud rate, pairing PIN, master/slave role, and other parameters using familiar AT commands
- Ultra-Low Power Consumption: Draws only ~1 mA in standby mode, making it ideal for battery-powered and energy-efficient IoT projects
- Wide Voltage Tolerance: Operates from 3.3V to 6V, allowing direct connection to both 3.3V and 5V systems without additional level shifting in most cases
- iOS and Android Compatible: BLE mode enables communication with iOS apps, while SPP mode works seamlessly with Android serial Bluetooth apps
- Master/Slave Flexibility: Configurable as master or slave, enabling module-to-module communication or phone-to-device pairing
- Compact Form Factor: Tiny PCB footprint fits easily into space-constrained enclosures, wearables, and embedded designs
- Onboard PCB Antenna: No external antenna needed - provides reliable 10-meter range for typical indoor applications
- Drop-In HC-05/HC-06 Upgrade: Pin-compatible replacement for legacy HC-05/HC-06 modules with added BLE capability and iOS support
Pin Configuration
| VCC | Power supply input (3.3V - 6V DC) |
| GND | Ground connection |
| TXD | UART Transmit - connect to MCU RX pin |
| RXD |
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy DX-BT18 Bluetooth ORIGINAL Online in India
Purchase the DX-BT18 Bluetooth ORIGINAL online at The Tech Depot - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on DX-BT18 Bluetooth ORIGINAL with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy DX-BT18 Bluetooth ORIGINAL at the best price in India? The Tech Depot offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.