Ebyte E01-2G4M13S User manual

E01-2G4M13S User Manual

NRF24L01P 2.4GHz SMD Wireless Module

Chengdu Ebyte Electronic Technology Co., Ltd. E01-2G4M13S User Manual

1 Overview

1.1 Introduction

E01-2G4M13S is a wireless serial port module (UART) based on

Nordic's NRF24L01P RF chip, working in 2.4ghz with built-in PCB

antenna.

Since chip nRF24L01P is used to ensure compatibility, the power

amplifier (PA) and low noise amplifier (LNA) are built on the original basis,

the maximum transmit power reaches 20mW and the receiving sensitivity

is further improved. Communication stability is greatly improved compared to products without power amplifiers

and low noise amplifiers. A large number of domestic Si24R1s are used in the market to pretend to be nRF24L01P

produced by NORDIC. it is recommended that the user tests the communication stability and distance under the

real use scenario and the difference is very obvious. Industrial grade high precision 16MHz crystal is used. This

product has obtained domestic and international authoritative certification such as FCC, CE, RoHS, etc.

Since the E01-2G4M13S is a SPI RF transceiver module, you need to use the MCU driver or a dedicated SPI

debugging tool.

1.2 Features

Communication distance tested is up to 800m;

Maximum transmission power of 20mW, software multi-level adjustable；

Support the global license-free ISM 2.4GHz；

Support air date rate of 2Mbps,1Mbps and 250kbps；

125 communication channels to meet the needs of multi-point communication, grouping, frequency

hopping, etc.；

Connect to the MCU through the SPI interface at a rate of 0～10Mbps;

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

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

Onboard PCB antenna, no need to connect external antenna;

Enhanced ShockBurst, fully compatible with nRF24L, nRF24E, nRF24U series of NORDIC.

Chengdu Ebyte Electronic Technology Co., Ltd. E01-2G4M13S User Manual

1.3 Application

Home security alarm and remote keyless entry；

Smart home and industrial sensors；

Wireless alarm security system；

Building automation solutions；

Wireless industrial-grade remote control；

Health care products；

Advanced Meter Reading Architecture(AMI)；

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）

2.0

3.3

3.6

≥3.3 V ensures output power

Communication level（V）

3.3

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

down

Operating temperature（℃）

-40

Industrial design

Operating frequency（MHz）

2.4

2.525

Support ISM band

Power

consump

tion

TX current（mA）

Instant power consumption

RX current（mA）

16.8

Sleep current （μA）

1.2

Software is shut down

Max Tx power（dBm）

12.5

13.5

Receiving sensitivity（dBm）

-97

-98

-99

Air data rate is 250 kbps

Air data rate（bps）

250k

Controlled via user’s programming

Chengdu Ebyte Electronic Technology Co., Ltd. E01-2G4M13S User Manual

Main parameter

Description

Remark

Distance for reference

800m

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

antenna height: 2.5m，air data rate: 250kbps

FIFO

32 Bytes

Max. Transmitting length per packet

Crystal frequency

16MHz

Modulation

GFSK

Package

SMD

Connector

1.27mm

Communication interface

SPI

0-10Mbps

Size

14 * 23 mm

PCB antenna included

Antenna

PCB antenna

50 ohm impedance

3 Size and pin definition

Chengdu Ebyte Electronic Technology Co., Ltd. E01-2G4M13S User Manual

No.

Name

Direction

Function

VCC

Power supply

Power supply ：2.0~ 3.6V DC

Input

Chip enable

CSN

Input

SPI Chip select

SCK

Input

SPI Clock

MOSI

Input

SPI master output slave input

MISO

Output

SPI master input slave output

IRQ

Output

Interrupt request, valid in low communication level

GND

Ground

GND

Ground

GND

Ground

4 Basic operation

4.1 Hardware design

It is recommended to use a DC stabilized power supply. The power supply ripple factor 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.

Reverse connection may cause permanent damage to the module；

Please check the power supply to ensure it is within the recommended voltage otherwise when it exceeds the

maximum value the module will be permanently damaged；

Please check the stability of the power supply, the voltage can not be fluctuated frequently；

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

of the margin, so 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 routing, high-frequency analog routing, and power routing 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(well grounded), it must be close

to the digital part of the module and routed in the Bottom Layer；

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

Bottom Layer or other layers, which will affect the module's spurs and receiving sensitivity to varying

degrees；

It is assumed that there are devices with large electromagnetic interference around the module that will

greatly affect the performance. It is recommended to keep them away from the module according to the

strength of the interference. If necessary, appropriate isolation and shielding can be done；

Chengdu Ebyte Electronic Technology Co., Ltd. E01-2G4M13S User Manual

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

analog, power traces) around the module that 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 necessary,

appropriate isolation and shielding can be done.

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 such as TTL protocol at 2.4GHz , for example: USB3.0；

Onboard PCB antennas should avoid conductors or other sources of interference.

4.2 Software editing

Insert the module on the user's circuit board, use the microcontroller to communicate with the module via SPI

or serial port, and operate the control register and the transceiver buffer through the SPI command to

complete the wireless data transmitting and receiving function. For the timing operation of the read and write

operations for the module register, please refer to the latest nRF24L01P data sheet.

IRQ is an interrupt pin, which can be used to wake up the microcontroller and achieve fast response. If it is

not connected, the SPI query mode can be used to obtain the interrupt status (not recommended, which is

not conducive to the overall power consumption, and the efficiency is not enough)；

CE can be connected to a high level for a long time, but the module must first be set to the POWER DOWN

mode when writing the register. It is recommended that the CE be controlled by a MCU pin.

5 Basic application

5.1 Basic circuit diagram

6 FAQ

6.1 Communication range is too short

Chengdu Ebyte Electronic Technology Co., Ltd. E01-2G4M13S User Manual

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).

The power supply low voltage under room temperature is lower than 2.5V, the lower the voltage, the lower the

transmitting power.

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

6.2 Module is easy to damage

Please check the power supply source, ensure it is 2.0V~3.6V, voltage higher than 3.6V will damage the module.

Please check the stability of power source, the voltage cannot fluctuate too much.

Please make sure antistatic measure are taken when installing and using, high frequency devices have electrostatic

susceptibility.

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

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

6.3 BER(Bit Error Rate) is high

There are co-channel signal interference nearby, please be away from interference sources or modify

frequency and channel to avoid interference;

Poor power supply may cause messy code. Make sure that the power supply is reliable.

The extension line and feeder quality are poor or too long, so the bit error rate is high;

7 Production guidance

7.1 Reflow soldering temperature

Profile Feature

Curve characteristics

Sn-Pb Assembly

Pb-Free Assembly

Solder Paste

Solder paste

Sn63/Pb37

Sn96.5/Ag3/Cu0.5

Preheat Temperature min （Tsmin）

Min preheating temp.

100℃

150℃

Preheat temperature max (Tsmax)

Mx preheating temp.

150℃

200℃

Preheat Time (Tsmin to Tsmax)(ts)

Preheating time

60-120 sec

Average ramp-up rate(Tsmax to Tp)

Average ramp-up rate

3℃/second max

Liquidous Temperature (TL)

Liquid phase temp.

183℃

217℃

Time（tL）Maintained Above（TL）

Time below liquid phase line

60-90 sec

30-90 sec

Peak temperature（Tp）

Peak temp.

220-235℃

230-250℃

Aveage ramp-down rate（Tp to Tsmax）

Aveage ramp-down rate

6℃/second max

Time 25℃ to peak temperature

Time to peak temperature for

25℃

max 6 minutes

max 8 minutes

Chengdu Ebyte Electronic Technology Co., Ltd. E01-2G4M13S User Manual

7.2 Reflow soldering curve

8 E01 Series

Model No.

RFIC

Frequency

TX power

Distance

Package

Antenna

dBm

E01-ML01S

nRF24L01P

2.4G

0.1

SMD

PCB

E01-ML01D

nRF24L01P

2.4G

0.1

DIP

PCB

E01-ML01IPX

nRF24L01P

2.4G

0.2

SMD

IPEX

E01-2G4M13S

nRF24L01P

2.4G

0.8

SMD

PCB

E01-ML01DP4

nRF24L01P

2.4G

1.8

DIP

PCB

E01-ML01DP5

nRF24L01P

2.4G

2.5

DIP

SMA-K

E01-ML01SP2

nRF24L01P

2.4G

1.8

SMD

PCB/IPEX

E01-ML01SP4

nRF24L01P

2.4G

SMD

IPEX

E01-2G4M27D

nRF24L01P

2.4G

DIP

SMA-K

All E01 series module are compatible with each other.

Chengdu Ebyte Electronic Technology Co., Ltd. E01-2G4M13S User Manual

9 Packing method for batch order

Revision history

Version

Date

Description

Issued by

1.00

2018/11/15

Initial version

huaa

About us

Technical support: support@cdebyte.com

Documents and RF Setting download link: www.ebyte.com

Thank you for using Ebyte products! Please contact us with any questions or suggestions: [email protected]

------------------------------------------------------------------------------------------------------------

Fax: 028-64146160 ext. 821 Web: www.ebyte.com

Address: Innovation Center B333-D347, 4# XI-XIN Road,Chengdu, Sichuan, China

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