Ebyte E01-2G4M27D Manuale utente

E01-2G4M27D User Manual

nRF24L01P 2.4GHz 500mW DIP wireless module

Chengdu Ebyte Electronic Technology Co., Ltd. E01-2G4M27D User Manual 
 
Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd. 1 
 
目录 
Overview................................................................................................................................................................................................2
1. Brie f Introduction.....................................................................................................................................................................2
2 Features .......................................................................................................................................................................................2
3 Application .................................................................................................................................................................................2
Specification and parameter ...............................................................................................................................................................3
1 Limit parameter .........................................................................................................................................................................3
2 Operating Parameter .................................................................................................................................................................3 
Size and pin defin ition .........................................................................................................................................................................4
Basic operation .....................................................................................................................................................................................5
1 Hardware design ................................................................................................................................................................5
2 Software ed iting ........................................................................................................................................................................6
Basic application ..................................................................................................................................................................................6
1 Basic circuit d iagram................................................................................................................................................................6
FAQ.........................................................................................................................................................................................................7
1 Co mmunication range is too short .........................................................................................................................................7
2 Module is easy to damage........................................................................................................................................................7
3 BER(Bit Error Rate) is high ....................................................................................................................................................7
Production guidance.............................................................................................................................................................................7
E01 Series ..............................................................................................................................................................................................8
Gu idance for choosing antenna...........................................................................................................................................................8
1 Antenna recommendation ........................................................................................................................................................8
Packing.................................................................................................................................................................................................9 
1 Anti-statistic pallet ..................................................................................................................................................................9
Revision history ..................................................................................................................................................................................... 10 
About us .................................................................................................................................................................................................. 10 
 
 

Chengdu Ebyte Electronic Technology Co., Ltd. E01-2G4M27D User Manual

1. Overview

1.1. Brief Introduction

E01-2G4M27D is a DIP module based on original

imported nRF24L01P form Nordic in Norway, operates

at 2.4Ghz with 500mW transmitting power.

The RF performance of E01-2G4M27D and

components selection during R&D are all in accordance

with industrial grade standards, using industrial-grade

high-precision 16MHz crystal oscillator, also it obtained

FCC, CE and RoHS certification. A power amplifier

(PA) and a low noise amplifier (LNA) are built in, so

that the maximum transmit power reaches 500mW while the receiving sensitivity improves for three times to -99dBm. The

products have been greatly improved when there is no PA and LNA in design.

The user needs to use the MCU driver or use a dedicated SPI debugging tool to develop E01-2G4M27D.

1.2 Features

Communication distance tested is up to 5.0KM；

Maximum transmission power of 500mW, software multi-level adjustable;

Support air date rate of 2Mbps, 1Mbps, 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 to 10 Mbps.

Support 2.5V~5.5V 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；

SMA interface for easy connection of coaxial cable or external antenna;

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

1.3 Application

Wearable device；

Smart home and industrial sensors；

Security system, positioning system；

Wireless remote control, drone；

Wireless game remote control；

Healthcare products；

Wireless voice, wireless headset；

Automotive industry applications.

Chengdu Ebyte Electronic Technology Co., Ltd. E01-2G4M27D User Manual

2. Specification and parameter

2.1 Limit parameter

Main parameter

Performance

Remark

Min.

Max.

Power supply（V）

5.5

Voltage over 5.5V 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）

2.5

3.3

5.5

≥3.3V 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（GHz）

2.4

2.525

Support ISM band

Power

consumption

TX current@3.3V（mA）

490

Instant power consumption

TX current@5.0V（mA）

390

Instant power consumption

RX current（mA）

Sleep current （μA）

N/A

Max Tx power（dBm）

26.8

27.3

Receiving sensitivity（dBm）

-98.5

-99

-99.5

Air data rate is 250kbps

Air data rate（bps）

250k

Controlled via user’s programming

For ultra-low power users, the power supply can be directly turned off externally.

Main parameter

Description

Remark

Distance for reference

2500m

Test condition：clear and openarea, antenna gain: 5dBi，antenna height: 2.5m，

air data rate: 250kbps

FIFO

32Byte

Maxlength transmittedeach time

Crystalfrequency

16MHz

Modulation

GFSK

Package

DIP

Connector

2.54mm Pin

Communication interface

SPI

0-10Mbps

Size

18 * 33.4mm

Without SMA

Antenna

SMA-K

50ohm impedance

Chengdu Ebyte Electronic Technology Co., Ltd. E01-2G4M27D User Manual

3. Size and pin definition

Pin No.

Pin item

Pin direction

Pin application

GND

Ground

VCC

Power supply must be 2.5 ~ 5.5V

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.

Chengdu Ebyte Electronic Technology Co., Ltd. E01-2G4M27D User Manual

4. Basic operation

4.1 Hardware design

5It 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；

6Please pay attention to the correct connection of the positive and negative poles of the power supp ly. Reverse

connection may cause permanent damage to the module；

7Please 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;

8Please check the stability of the power supply, the voltage cannot be fluctuated frequently；

9When 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;

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

parts with large electromagnetic interference;

11 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；

12 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 ；

13 It is assumed that there are devices with large electromagnetic interference around the module that will greatly affe ct

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；

14 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.

15 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)；

16 Try to stay away from some physical layers such as TTL protocol at 2.4GHz , for example: USB3.0；

17 The mounting structure of antenna 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

antenna extension cable to extend the antenna to the outside ；

18 The antenna must not be installed inside the metal case, which will cause the transmission distance to b e greatly

weakened.

Chengdu Ebyte Electronic Technology Co., Ltd. E01-2G4M27D User Manual

4.2 Software editing

This module is nRF24L01+PA+LNA, the drive mode is exactly equivalent to nRF24L01P, the user can operate

according to the nRF24L01P manual (Please see nRF24L01P manual for more details).

As interrupt pin for IRQ, it can be used to wake-up MCU and achieve fast response;

But the user can get the interrupt status through SPI (not recommended, it is not conducive to the overall powe r

consumption, and with low efficiency）.

CE pin can be high level for long-term, but it needs to set as POWER DOWN mode when the module write

registers, and it is recommended that CE is controlled by MCU pin.

Make sure the CE pin connect to LNA enable pin , when CE equal to 1, LNA is turned on, when CE to 0, LNA is

turned off. This operation is perfectly matched with the transceiver mode of nRF24L01; that is to say, users do not

have to care about the LNA operation

If the automatic response is needed, the CE pin must keep high level when transmitting, instead of keeping high

level time just more than 10us like the datasheet mentioned.The operation we recommended is: when CE equal to 1,

the module begin sending, after sending all, then make the CE equal to 0, instead of making the CE equal to 0 a fter

10 us.The reason is: the module turns into receiving mode immediately after sending L01P,If CE equal to 0,it means

LNA closed, will not be beneficial to the receiving senility

5. Basic application

5.1 Basic circuit diagram

Chengdu Ebyte Electronic Technology Co., Ltd. E01-2G4M27D User Manual

6. FAQ

6.1 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).

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

This module is a DIP type module, the workers must work according to the static discharge operation specifications

while welding. This module is a static-sensitive product, it may cause permanent damages if the module is not welded

according to the specifications.

Chengdu Ebyte Electronic Technology Co., Ltd. E01-2G4M27D User Manual

8. E01 Series

Model No.

Frequency

Tx power

Test distance

Package

Antenna

dBm

E01-M L01S

nRF24L01P

2.4G

0.1

SM D

PCB

E01-M L01D

nRF24L01P

2.4G

0.1

DIP

PCB

E01-M L01IPX

nRF24L01P

2.4G

0.2

SM D

IPEX

E01-M L01DP4

nRF24L01P

2.4G

1.8

DIP

PCB

E01-M L01DP5

nRF24L01P

2.4G

2.5

DIP

SM A-K

E01-M L01SP2

nRF24L01P

2.4G

1.8

SM D

PCB/IPEX

E01-M L01SP4

nRF24L01P

2.4G

SM D

IPEX

E01-2G4M 27D

nRF24L01P

2.4G

DIP

SM A-K

9.Guidance for choosing antenna

9.1 Antenna recommendation

Antenna plays important role in the communication process. Good antenna can largely improve the communication system.

Therefore, we recommend some antennas with excellent performance and reasonable price.

Model

Type

Frequency

Interface

Gain

dBi

siza

Fender

Feature

TX2400-NP-5010

FPC

2.4G

IPEX

50*10mm

FPC

TX2400-XP-150

Sucker

2.4G

SM A-J

3.5

15cm

150cm

High gain

TX2400-JK-20

Whip

2.4G

SM A-J

200mm

Omnidirectional antenna

TX2400-JK-11

Whip

2.4G

SM A-J

2.5

110mm

Omnidirectional antenna

TX2400-JZ-3

Whip

2.4G

SM A-J

30mm

Omnidirectional antenna

Chengdu Ebyte Electronic Technology Co., Ltd. E01-2G4M27D User Manual

10. Packing

10.1 Anti-statistic pallet

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