Ebyte E73-2G4M04S1B Manuale utente

E73-2G4M04S1B User Manual

nRF52832 BLE 4.2/5.0 SMD Wireless Module

Chengdu Ebyte Electronic Technology Co., Ltd. E73-2G4M04S1B User

manual

1. OVERVIEW.................................................................................................................................. 3

1.1 INTRODUCTION......................................................................................................................... 3

1.2 FEATURES......................................................................................................................................................................3

1.3 APPLICATION................................................................................................................................................................. 4

2. SPECIFICATION AND PARAMETER..................................................................................... 4

2.1 LIMIT PARAMETER.........................................................................................................................................................4

2.2 OPERATING PARAMETER................................................................................................................................................4

3. SIZE AND PIN DEFINITION.....................................................................................................5

4. BASIC OPERATION................................................................................................................... 7

4.1 HARDWARE DESIGN...................................................................................................................................................... 7

4.2 SOFTWARE PROGRAMMING...........................................................................................................................................8

5. FAQ.................................................................................................................................................9

5.1 COMMUNICATION RANGE IS TOO SHORT....................................................................................................................... 9

5.2 MODULE IS EASY TO DAMAGE...................................................................................................................................... 9

5.3 HIGH BIT ERROR RATE...................................................................................................................................................9

6. WELDING OPERATION GUIDANCE..................................................................................... 9

6.1 REFLOW SOLDERING TEMPERATURE............................................................................................................................ 9

6.2 REFLOW SOLDERING CURVE...................................................................................................................................... 10

Chengdu Ebyte Electronic Technology Co., Ltd. E73-2G4M04S1B User

manual

REVISION HISTORY......................................................................................................................13

ABOUT US.........................................................................................................................................13

Chengdu Ebyte Electronic Technology Co., Ltd. E73-2G4M04S1B User

manual

1. Overview

1.1 Introduction

E73-2G4M04S1B is a SMD bluetooth wireless module based on

NORDIC's nRF52832 RF chip. NRF52832 has high-performance ARM

CORTEX-M4 core and Bluetooth 4.2 and Bluetooth 5 RF transceiver and

protocol stack, and has abundant peripheral resources such as UART, I2C, SPI,

ADC, DMA, PWM, etc.The module brings out almost all IO ports, which is

convenient for users to conduct multi-faceted development, Please see pin

definitions for details. The module has built-in PCB antenna and can connect

other antennas through IPEX. The product has obtained FCC, CE, RoHS and

other international authoritative certification reports, users do not need to worry about its performance. We use a 32MHz

high precision low temperature drift active crystal to ensure its industrial properties and stability.

Because this module is a pure hardware SoC module, users need to program it before they can use it.

1.2 Features

Communication distance tested is up to 100m；

Maximum transmission power of 2.5mW, software multi-level adjustable；

Support bluetooth 4.2 and bluetooth 5.0；

Built-in 32.768 kHz clock crystal oscillator；

Support for the global license-free ISM 2.4GHz band；

Rich resources, 512KB FLASH, 64KB RAM;

Support 2.0V~3.6V power supply, more than 3.3V power supply can guarantee the best performance;

Industrial grade standard design, support -40 ~ 85 °C for a long time；

Support onboard PCB antenna and IPEX interface, users can choose according to their needs；

Chengdu Ebyte Electronic Technology Co., Ltd. E73-2G4M04S1B User

manual

1.3 Application

Smart home and industrial sensors；

Security system and positioning system;

Wireless remote control, UAV；

Wireless Game Remote Controller；

Health care products；

Wireless voice, wireless headset；

Automotive industry applications.

2. Specification and parameter

2.1 Limit parameter

Main parameter

Performance

Remark

Min.

Max.

Power supply（V）

3.6

Voltage over 3.6V will cause permanent

damage to module

Blocking power（dBm）

Chances of burn is slim when modules are

used in short distance

Operating temperature（℃）

-40

2.2 Operating parameter

Main parameter

Performance

Remark

Min.

Typ.

Max.

Operating voltage（V）

1.8

3.3

3.6

≥3.3 V ensures output power

Communication level（V）

3.0

For 5V TTL, it may be at risk of burning

down

Operating temperature（℃）

-40

Industrial design

Operating frequency（MHz）

2379

2430

2496

Support ISM band

Power

consumpti

TX current（mA）

Instant power consumption

RX current（mA）

Sleep current （μA）

Software is shut down

Max Tx power（dBm）

3.8

4.3

Receiving sensitivity（dBm）

-94

-95

-96

Air data rate is 1Mbps

Chengdu Ebyte Electronic Technology Co., Ltd. E73-2G4M04S1B User

manual

Main parameter

Description

Remark

Distance for reference

100m

Test condition：clear and open area, antenna gain: 5dBi，

antenna height: 2.5m，air data rate: 1Mbps

Crystal frequency

24MHz / 32.768KHz

Support protocal

BLE 4.2/5.0

Package

SMD

Connector

1.27mm

nRF52832-QFAA

FLASH

512KB

RAM

64KB

kernel

ARM CORTEX-M4F

Size

17.5 * 28.7 mm

Antenna

Onboard PCB / IPEX

Equivalent impedance is about 50 ohms

3. Size and pin definition

No.

Pin item

Pin direction

Application

GND

Input

Ground electrode, connect to reference ground of power

Chengdu Ebyte Electronic Technology Co., Ltd. E73-2G4M04S1B User

manual

GND

Input

Ground electrode, connect to reference ground of power

GND

Input

Ground electrode, connect to reference ground of power

DEC2

1.3 V Digital power supply decoupling controller

DEC3

Power supply decoupling

P0.25

Input/Output

MCU GPIO

P0.26

Input/Output

MCU GPIO

P0.27

Input/Output

MCU GPIO

P0.28

Input/Output

MCU GPIO

P0.29

Input/Output

MCU GPIO

P0.30

Input/Output

MCU GPIO

P0.31

Input/Output

MCU GPIO

DEC4

1.3 V Digital power supply decoupling controller

Input from DC/DC regulator Output from1.3 V LDO

DCC

DC/DC DC regulator output

DEC1

0.9 V Digital power supply decoupling controller

GND

Input

MCU GPIO

VCC

Input

Power supply 1.8 ~ 3.6V DC（Note: The voltage higher 3.6V is forbidden）

P0.02

Input/Output

MCU GPIO

P0.03

Input/Output

MCU GPIO

P0.04

Input/Output

MCU GPIO

P0.05

Input/Output

MCU GPIO

P0.06

Input/Output

MCU GPIO

P0.07

Input/Output

MCU GPIO

P0.08

Input/Output

MCU GPIO

P0.09

Input/Output

MCU GPIO

P0.10

Input/Output

MCU GPIO

P0.11

Input/Output

MCU GPIO

P0.12

Input/Output

MCU GPIO

P0.13

Input/Output

MCU GPIO

P0.14

Input/Output

MCU GPIO

P0.15

Input/Output

MCU GPIO

P0.16

Input/Output

MCU GPIO

P0.17

Input/Output

MCU GPIO

P0.18

Input/Output

MCU GPIO

P0.19

Input/Output

MCU GPIO

Chengdu Ebyte Electronic Technology Co., Ltd. E73-2G4M04S1B User

manual

P0.20

Input/Output

MCU GPIO

P0.21

Input/Output/RST

MCU GPIO

SWDCLK

Input

Serial Line Debugging / Clock Input Debugging and Programming

SWDIO

Input

Serial line debugging and programming debugging

P0.22

Input/Output

MCU GPIO

P0.23

Input/Output

MCU GPIO

P0.24

Input/Output

MCU GPIO

GND

Input

Ground electrode, connect to power reference ground

GND

Input

Ground electrode, connect to power reference ground

★For more details, please refer to《nRF528XXDatasheet》in NORDIC ★

4. Basic Operation

4.1 Hardware Design

It is recommended to use DC stabilized power supply to supply power to the module. The power supply ripple

coefficient is as small as possible, and the module needs to be reliably grounded.

Please pay attention to the correct connection of the positive and negative poles of the power supply. If the reverse

connection is connected, the module may be permanently damaged.

Please check the power supply to ensure that between the recommended supply voltage, if exceeding the maximum,

the module will be permanently damaged.

Please check the stability of the power supply, the voltage can not be significantly frequent.

When designing the power supply circuit for the module, it is often recommended to reserve more than 30% of the

margin, and the whole machine is beneficial for long-term stable operation.

The module should be as far away as possible from the power supply, transformers, high-frequency wiring and other

parts with large electromagnetic interference.

High-frequency digital traces, high-frequency analog traces, and power traces must be avoided under the module. If

it is necessary to pass through the module, assume that the module is soldered to the Top Layer, and the copper is

spread on the Top Layer of the module contact part(All copper-covered and well grounded), and must be close to

the digital part of the module and routed in the Bottom Layer.

Assuming the module is soldered or placed in the Top Layer, it is also wrong to randomly route the Bottom Layer or

other layers, which will affect the module's spurs and receiving sensitivity to varying degrees.

Assume that there are traces with large electromagnetic interference around the module (high-frequency digital,

high-frequency analog, power trace), which will greatly affect the performance of the module. It is recommended to

stay away from the module according to the strength of the interference. If possible, you can do it properly. Isolation

and shielding

If the communication line uses a 5V level, a 1k-5.1k resistor must be connected in series (not recommended, there is

still a risk of damage).

Try to stay away from some physical layers and also have a 2.4GHz TTL protocol, for example: USB3.0

The antenna mounting structure has a great influence on the performance of the module. It is necessary to ensure

that the antenna is exposed, preferably vertically upward. When the module is mounted inside the case, use a good

Chengdu Ebyte Electronic Technology Co., Ltd. E73-2G4M04S1B User

manual

antenna extension cable to extend the antenna to the outside of the case.

The antenna must not be installed inside the metal case, which will greatly reduce the transmission distance.

4.2 Software Programming

The core of this module is nRF52832, which is completely equivalent to nRF52832. Users can operate according to

the nRF52832 chip manual (see nRF52832 manual for details).

Because the officially provided programming tool nRFgo Studio has poor compatibility, it is recommended to use

J-LINK-V8 or above for program burning.

About the issue that the old model can be programmed, while the new model can't be programmed, It is because the

new model being added with read/write protection during production. It needs to be properly connected to the line

and then use the official nRFgo Studio for Recover (Jlink supports the official nRFgo). Studio), as shown below:

Chengdu Ebyte Electronic Technology Co., Ltd. E73-2G4M04S1B User

manual

5. FAQ

5.1 Communication range is too short

The communication distance will be affected when obstacle exists.

Data lose rate will be affected by temperature, humidity and co-channel interference.

The ground will absorb and reflect wireless radio wave, so the performance will be poor when testing near ground.

Sea water has great ability in absorbing wireless radio wave, so performance will be poor when testing near the sea.

The signal will be affected when the antenna is near metal object or put in a metal case.

Power register was set incorrectly, air data rate is set as too high (the higher the air data rate, the shorter the

distance).

When the power supply at room temperature is lower than the recommended low voltage, the lower the voltage is,

the lower the transmitting power is.

Due to antenna quality or poor matching between antenna and module.

5.2 Module is easy to damage

Please check the power supply and ensure it is within the recommended range. Voltage higher than the peak will

lead to a permanent damage to the module.

Please check the stability of power supply and ensure the voltage not to fluctuate too much.

Please make sure anti-static measures are taken when installing and using, high frequency devices have electrostatic

susceptibility.

Please ensure the humidity is within limited range for some parts are sensitive to humidity.

Please avoid using modules under too high or too low temperature.

5.3 High bit error rate

There are co-channel signal interference nearby, keep away from interference sources or modify frequency, channel

to avoid interference.

Unsatisfactory power supply may also cause garbled characters, and ensure the reliability of the power supply.

If the extension cable or feeder is of poor quality or too long, the bit error rate will be high.

6. Welding operation guidance

6.1 Reflow Soldering Temperature

Profile Feature

Curve feature

Sn-Pb Assembly

Pb-Free Assembly

Indice

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