nRF Bluetooth Low Energy Module Overview
Dusun IoT’s wireless Bluetooth modules enable secure and reliable connectivity in smart buildings, smart homes, household gadgets, baby monitor and remote patient monitoring device system.
Our Bluetooth smart modules are embedded with multi protocol functions that enabling users to customize their IoT products by using these software examples.
Quick Facts of Free-to-deploy Bluetooth Modules
- Sizng of 16 mm x 24mm allows for more compact and portable IoT applications;
- all-in-one Bluetooth modules, which meansone module for the all BLE protocols: Bluetooth 5.2, Long Range, iBeacon/eddy stone, Bluetooth Scan, Bluetooth Mesh;
- A wide series of different Bluetooth IoT product firmwares are already built-in;
- Support OTA function though Cloud platform;
- Free MQTT- API to quickly connect your IoT products to public and private cloud platforms though Dusun IoT’s Bluetooth gateway.
Why Choose Dusun IoT's Wireless Bluetooth Module Overview
DSM-050 Bluetooth low energy module is an embedded Bluetooth v5.2 module. It is composed of a highly integrated wireless chip nRF52840 and some peripheral devices. The antenna is on board PCB Antenna with 2.0dBi gain.
Supporting Bluetooth Mesh protocol and long range protocol, This Bluetooth module is suitable for smart home devices.
Our Bluetooth module has a series of different Bluetooth IoT product firmware built-in, which means you can make product design without development, greatly reducing your IoT product development cycle and quickly go to market.
Otherwise, this high quality Bluetooth module can be equipped with Dusun Bluetooth gateway, which will provide MQTT documents for free, and quickly connect to public cloud platforms or private platforms.
Bluetooth Low Energy Module Specifications
| Specifications | DSM-050 |
|---|---|
| Basic RF Features | |
| Frequency Band | 2.400–2.480 GHz |
| Wireless Protocol Standard | Bluetooth 5.2 |
| Antenna Type | PCB antenna |
| Date Rate | 125~2Mbps |
| Transmit Power | +8dBm |
| Receiver Sensitivity (1% PER) | -103dBm（125Kbps） |
| Operate Range | Up to 300m（~1200ft） |
| Features | |
| Serial Data Interface | UART, GPIO, PWM |
| Configuration Method | API, OTA |
| Operate temperature | -20~85°C |
| Dimensions (L*W*H) | 14.8±0.35 mm (W)×20.5 ±0.35 mm (L) ×3.4±0.15 mm (H) |
| Power parameters | |
| Power input | 1.8~3.8VDC |
| Low-level input voltage | -0.3V~VDD*0.25 |
| High-level input voltage | VDD*0.75~3.6V |
| Low-level output voltage | <VDD*0.1 |
| High-level output voltage | >VDD*0.8 |
| Certification | |
 | Yes |
 | Yes |
 | Yes |
 | Yes |
Bluetooth Low Energy Module Sizes
Bluetooth Low Energy Module Reference Layout Package
Bluetooth Low Energy Module Pin Definition
| Pin number | Name | Function |
|---|---|---|
| 1 | GND | ground |
| 2 | GPIO | General Purpose Input Output |
| 3 | VCC | 3.3VDC input |
| 4 | nRST | Reset |
| 5 | GPIO | General Purpose Input Output |
| 6 | SWCLK | JLINK SWCLK programming pin. Normal application Can be used as GPIO in sequence |
| 7 | SWDIO | JLINK SWCLK programming pin. Normal application Can be used as GPIO in sequence |
| 8 | PWM1 | PWM |
| 9 | PWM2 | PWM |
| 10 | UART-TX | UART-TX |
| 11 | UART-TX | UART-TX |
| 12 | VCC | 3.3VDC input |
| 13 | ADC | 12SDC |
| 14 | GND | ground |
Bluetooth Low Energy Module Package
| Module | Reel | Static-free aluminum foil bag | Carton |
|---|---|---|---|
 |
 |
 |
 |
| - | 800 pcs Module per Reel | 1pcs Reel per bag | 5 pcs bags per carton box |
Bluetooth Low Energy Module Accessories
| Part | Name | Description |
|---|---|---|
 | Pin-in transfer board | The pins of the module can be transferred one to one, suitable for socket use |
 | In-Line transfer board | The pins of the module can be transferred one to one, suitable for in line use |
Bluetooth Low Energy Module OTA Functions
Bluetooth IoT device that has our built-in Bluetooth module can support OTA function through Cloud.
Bluetooth Low Energy Module Support
Bluetooth Low Energy Module API
Our wireless Bluetooth modules have built-in stable firmware for various IoT products.
| Product Name | Wireless Devices | Firmware version |
|---|---|---|
| DSM-050-1 | Temperature &humidity sensor | DSM-050_T&H sensor.bin |
| DSM-050-2 | iBeacon/eddystone | DSM-050_Beacon.bin |
| DSM-050-3 | Motion | DSM-050_ Motion.bin |
| DSM-050-4 | Leakage | DSM-050_Leakage.bin |
| DSM-050-5 | Smoke | DSM-050-Smoke.bin |
| DSM-050-6 | Mesh | DSM-050-Mesh.bin |
| DSM-050-7 | Bluetooth Scan | DSM-050-Scan.bin |
MQTT of Bluetooth Low Energy Module
Dusun IoT‘s Bluetooth low energy modules can provide the free MQTT protocol for the gateway to connect to the customer platform.
Customers can easily deploy the entire system and view the status and data of the end device any time.
