Wireless Module Solutions

The product specification of Dusun's Zigbee module.

Product Specification

Product Name: Zigbee Module

Model Name: DSM-020

1. Introduction

1.1 Purpose& Description

The DSM-020 is a low-power, embedded Zigbee module. The module consists of a EFR32MG13P732 highly integrated wireless RF processor chip and a small number of peripheral devices. It has a built-in 802.15.4 PHY/MAC Zigbee network protocol and a large number of library functions.

 

The DSM-020 embeds a low-power 32-bit ARM Cortex-M4 core, 512KByte Flash program memory, 64KB RAM data memory, and a wealth of peripheral resources. The DSM-020 is a FreeRTOS platform that gathers all Zigbee MAC and TCP/IP libraries into one place. It enables users to build on the product and develop embedded Zigbee products that suit their individual needs.

1.2 Product Feature Summary 

- A built-in low-power 32-bit ARM Cortex-M4 processor with a DSP instruction set and a floating

point unit that doubles as an application processor

- Supports a main frequency of 40MHz

- Wide operating voltage: 1.8V-3.8V

- Peripherals: 9×GPIOs, 1×UART, 1×ADC

- Zigbee operating characteristics

  • Supports 802.15.4 MAC/PHY

  • Operating channels 11 to 26 @2.400-2.483GHz, air-interface rate 250Kbps

  • Built-in DC-DC circuit for maximum power efficiency

  • +19dBm maximum output, dynamic power output > 35dB

  • 63uA/MHz operating power consumption; 1.4 uA sleep current

  • Active net pairing with terminal devices

  • Built-in onboard PCB antenna/reserved Ipex connector for high gain external antenna

  • Operating temperature: -40℃ to 85℃

  • Supports hardware encryption and supports AES 128/256

1.3 Main Application Fields

  • Smart buildings

  • Smart homes/appliances

  • Smart plugs, smart lighting

  • Industrial wireless control

  • Health and measurements

  • Asset tracking

 

2. Mechanical Design

2.1 Module Dimensions

DSM-020 has 2 rows of pins with a 2mm gap.

Size: 16 mm(W)* 24mm(L) * 3.5mm(H)

2.2 Pin Definition

Pin

number

1

Symbol

IO Type

Function

nRST

I

Hardware reset pin, the chip is reset when the pin is LOW; Power-on reset of the module, the user can use this pin as needed

2

ADC

AI

ADC, 12-bit precision SAR analog to digital converter

3

NC

-

NC pin, external handling is not required

4

GPIO0

I/O

GPIO pin usage.

5

SWO

I/O

GPIO pin usage/can be used as an output pin under JLINK communication.

6

PWM3

I/O

GPIO pin usage.

7

PWM1

I/O

GPIO pin usage.

8

VCC

P

Module power supply pin (common supply voltage: 3.3V)

9

GND

P

The reference ground of the module.

10

GPIO2

I/O

GPIO pin usage.

11

SWDIO

I/O

JLINK SWDIO programming pin. Can be used as a GPIO pin in normal applications.

12

SWCLK

I/O

JLINK SWCLK programming pin. Can be used as a GPIO pin in normal applications.

13

PWM2

I/O

GPIO pin usage.

GPIO pin usage.

14

GPIO3

I/O

15

RXD

I/O

UART0_RXD

16

TXD

UART0_TXD

O

 

2.3 PCB Packaging

3. Electrical Characteristics

3.1 Absolute Electrical Characteristics

Parameters

Description

Ts

VCC

Minimum Value

Unit

Maximum Value

Storage temperature

Input voltage

-50

-0.3

150

3.8

V

Electrostatic discharge voltage

(human-body model)

Electrostatic discharge voltage

(machine model)

TAMB-25℃

TAMB-25℃

KV

KV

-

-

2.5

0.5

 

3.2 Operating conditions

Parameters

Description

Ta

VCC

Minimum

value

Unit

Typical

value

Operating

temperature

Operating voltage

-40

1.8

-

3.3

VIL

VIH

I/O low input

I/O high input

V

-0.3

VCC*0.75

-

Maximum

value

I/O low output

I/O high output

VOL

VOH

VCC*0.8

-

-

-

-

85

3.8

VCC*0.25

VCC

VCC*0.1

VCC

V

V

V

V

Imax

I/O drive current

-

-

12

mA

3.3 Zigbee TX Power Consumption

Symbol

Rate

IRF

IRF

Transmission power

Unit

250Kbps

250Kbps

+19dBm

+13dBm

mA

IRF

250Kbps

+1dBm

Typical value

120

50

11.8

mA

mA

IRF

250Kbps

+10dBm

32

mA

IRF

250Kbps

+4dBm

17

mA

Note: When testing the above data, the continuous transmission duty cycle=100%.

3.4 ZigBee RX Power Consumption

Symbol

Rate

IRF

Typical value

Unit

250Kbps

8

mA

3.5 Power Consumption in Operating Mode

Operation Mode

Operating condition,(Ta=25°C)

Quick configuration

Network connection

state

Average

value

Unit

Maximum

value

Module in quick configuration state

Connected to a network

10

-

1.4

Deep sleep mode

Deep sleep mode and retains 64KB RAM

40

-

3

mA

mA

uA

250Kbps

4. RF Features

4.1 Basic RF Features

Parameter

Description

Operating frequency

Physical layer standard

2.400 to 2.484GHz

IEEE 802.15.4

Data transfer rate

Antenna type

250Kbps

PCB antenna/Ipex connector external antenna

Line of sight

>150m

 

4.2 ZigBee Output Power

Parameter

Maximum output

Output power adjustment step

Minimum

value

Unit

Typicalvalue

+19

dBm

Output adjacent channel suppression

-

Max

-

dB

dBm

-30

0.5

-

-

-

1

dBc

-31

Frequency error

Minimum output

-15

ppm

+15

-

Note: The maximum output power is +19dBm. The power output can be adjusted under normal use. The high-power output can be used for overlay transmissions in extremely complex environments, such as modules embedded in the wall.

4.3 RF RX sensitivity

Parameter

PER<10%, RX sensitivity, 250Kbps@OQPSK

Minimum

value

Unit

Typical

value

-

-101

dBm

Maximum

value

-

5. Production Guide

The storage conditions for the module after it has been shipped are as follows:

1. The moisture resistant bag must be stored at a temperature below 30℃, and under a relative

humidity below 85%.

2. The shelf life of dry packed products is 6 months following the packaged date important

information.

3. All line workers must wear anti-static wrist straps and anti-static clothing throughout the entire

production process.

4. It is strictly prohibited to allow a module to come into contact with water or other contaminants

during operations.

Recommended Oven Temperature Profile

6. Package

Product type

DSM-020

MOQ

4000

Packing method

Carrier tape and reel packing

Number of Modules in

Each Reel Pack

800

Number of Reel Packs

in Each Box

5

 
 

7. Firmware for different devices

There are different firmware corresponding to different wireless device applications.

Wireless Devices

Lighting

Firmware version

DSM-020_Lighting.bin

Dimmer

DSM-020_Dimmer.bin

Breaker

DSM-020_breaker.bin

Switches

DSM-020_Switch.bin

Plug

DSM-020-Plug.bin

Strip

DSM-020-Strip.bin

Smart Lock

DSM-020-Lock.bin

Door sensor

DSM-020-Door sensor.bin

Motion sensor

DSM-020-Motion sensor.bin

Water Leakage sensor

DSM-020-Water Leakage sensor.bin

Temp&Hum sensor

DSM-020-Temp&Hum sensor.bin

 

8. How to connect cloud platform

8.1 ZigBee Connection

The devices need to connect to ZigBee gateway, and the gateway send the data to cloud.

8.2 MQTT configuration

1. Log in the gateway using browser

2. Switch to cloud configuration menu and fill in the MQTT credentials of your server.

Related MQTT API for different devices.

API

Lighting

Document

RB Gateway Platform Protocol

Dimmer

RB Gateway Platform Protocol

Breaker

RB Gateway Platform Protocol

Switches

RB Gateway Platform Protocol

Plug

RB Gateway Platform Protocol

Strip

RB Gateway Platform Protocol

Smart Lock

RB Gateway Platform Protocol

Door sensor

RB Gateway Platform Protocol

Motion sensor

RB Gateway Platform Protocol

Water Leakage sensor

RB Gateway Platform Protocol

Temp&Hum sensor

RB Gateway Platform Protocol

 

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