Ebyte E220-400R30D User manual

E220-400R30D User Manual
433/470MHz 30dBm New Lora Wireless Module

Chengdu Ebyte Electronic Technology Co.,Ltd. E220-400R30D User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd. 1
Contents
Disclaimer............................................................................................................................................................. 3
1 Introduction........................................................................................................................................................4
1.1 Brief Introduction........................................................................................................................................4
1.2 Features....................................................................................................................................................... 4
1.3 Application..................................................................................................................................................4
2 Specification and parameter...............................................................................................................................5
2.1 Limit parameter...........................................................................................................................................5
2.2 Operating parameter....................................................................................................................................5
3 Size and pin definition....................................................................................................................................... 6
4 Recommended wire diagram............................................................................................................................. 7
5 Detailed Functions............................................................................................................................................. 8
5.1 Fixed-point launch...................................................................................................................................... 8
5.2 Broadcast launch......................................................................................................................................... 8
5.3 Broadcast address........................................................................................................................................9
5.4 Monitor address...........................................................................................................................................9
5.5 STB details..................................................................................................................................................9
5.5.1 Instructions during configuration.........................................................................................................9
5.5.2 Wireless transmit instruction............................................................................................................... 9
6 Operating mode..................................................................................................................................................9
7 Factory default parameters...............................................................................................................................10
8 Configuration instructions on computer.......................................................................................................... 10
9 Hardware design.............................................................................................................................................. 11
10 FQA................................................................................................................................................................11
10.1 The transmission distance is not ideal.....................................................................................................11
10.2 Module is easy to be damaged................................................................................................................ 12
10.3 BER(Bit Error Rate) is high....................................................................................................................12
11 Production guidance.......................................................................................................................................12
11.1 Reflow soldering temperature.................................................................................................................12
11.2 Reflow soldering curve........................................................................................................................... 13

Chengdu Ebyte Electronic Technology Co.,Ltd. E220-400R30D User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd. 2
12 E22 series.......................................................................................................................................................13
13 Antenna recommendation.............................................................................................................................. 13
14 Package for bulk order...................................................................................................................................14
Revision history.................................................................................................................................................. 14
About us..............................................................................................................................................................15

Chengdu Ebyte Electronic Technology Co.,Ltd. E220-400R30D User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd. 3
Disclaimer
EBYTE reserves all rights to this document and the information contained herein.
Products, names, logos and designs described herein may in whole or in part be
subject to intellectual property rights. Reproduction, use, modification or disclosure to
third parties of this document or any part thereof without the express permission of
EBYTE is strictly prohibited.
The information contained herein is provided “as is” and EBYTE assumes no
liability for the use of the information. No warranty, either express or implied, is given,
including but not limited, with respect to the accuracy, correctness, reliability and
fitness for a particular purpose of the information. This document may be revised by
EBYTE at any time. For most recent documents, visit www.ebyte.com.

Chengdu Ebyte Electronic Technology Co.,Ltd. E220-400R30D User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd. 4
1 Introduction
1.1 Brief Introduction
The E220-400R30D uses a new generation of LoRa spread-band
technology based on the RS485 module designed for the LLCC68 chip
scheme with a variety of transmission modes. It operates in the (410.125
to 493.125MHz) frequency (default 433.125MHz) and supports DC 5.0
power supply. Factory equipped with a dedicated power-up machine,
power-up automatic identification. Support transmission, fixed-point
transmission mode, can be paired with the E220 same frequency series for low-power applications.
1.2 Features
Based on LLCC68, the new LoRa amplification modulation technology, longer communication distance and
stronger anti-jamming capability.
Support users to set their own communication keys, and can not be read, greatly improve the confidentiality of user
data;
Support LBT function, listening to channel environment noise before sending the data, can greatly improve the
module in the harsh environment of communication success rate;
Support RSSI signal strength indication function, used to evaluate signal quality, improve communication network,
measure the distance;
Support fixed-point transmission, broadcast transmission, channel monitoring;
Support the global license-free ISM 433MHz frequency and 470MHz meter reading frequency;
When powered down, the parameters will be saved automatically, and the module will work according to the set
parameters after re-powering up;
Efficient gate-keeper design, in the event of an exception, the module will restart automatically and continue to
work in accordance with the previous parameter settings;
Supports data transfer rates from 2.4k to 62.5kbps;
Industrial grade standard design, support -40 ~ 85 °C for working over a long time;
SMA antenna interface.
1.3 Application
Home security alarm and remote keyless entry;
Smart homes and industrial sensors;
Wireless alarm security system;
Building automation solutions;
Wireless industrial-grade remote control;
Advanced Meter Reading Architecture(AMI);
Automotive industry applications.

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2 Specification and parameter
2.1 Limit parameter
Main parameter
Performance
Remark
Min
Max
Power supply（V）
0
5.5
Voltage over 5.5V will cause
permanent damage to module
Blocking power（dBm）
-
10
Chances of burn is slim when
modules are used in short distance
Operating temperature（℃）
-40
+85
Industrial grade
2.2 Operating parameter
Main parameter
Performance
Remark
Min
Type
Max
Operating voltage（V）
4.5
5.0
5.5
≥5.5 V ensures output power
Communication level（V）
-
-
-
For 5V TTL, it may be at risk of burning
down
Operating temperature（℃）
-40
-
85
Industrial grade
Operating frequency（MHz）
410.125
-
493.125
Support ISM band
Power
Consump-
tion
TX current（mA）
-
630
-
Instant power consumption@30dBm
RX current（mA）
-
19
-
-
Sleep current （μA）
-
-
-
Low power consumption is not supported
Max TX power（dBm）
29.5
30.0
30.5
-
Receiving sensitivity（dBm）
-
-129
-
-124dbm,BW_L=125kHz,SF =
7,LORATM;
-129dbm,BW_L=125kHz,SF =
9,LORATM;
-121dbm,BW_L=250kHz,SF =
7,LORATM;
-129dbm,BW_L=250kHz,SF =
10,LORATM;
-117dbm,BW_L=500kHz,SF =
7,LORATM;
-127dbm,BW_L=500kHz,SF =
11,LORATM;
Air data rate（bps）
2.4k
2.4k
62.5k
Controlled via user’s programming

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Main parameter
Description
Remark
Reference distance
10km
Test condition：clear and open area, antenna gain: 5dBi，
antenna height: 2.5m，air data rate: 250 kbps
Launch length
200 Byte
The subcontract 32/64/128/200 bytes can be sent by instruct
settings
Cache capacity
400 Byte
-
Modulation
LoRa
New generation of LoRa modulation technology
Communication Interface
485 interface
485 level
Encapsulate
Pin
-
Interface
PH2.0
Space 2.0mm with reserved 2.54mm hole
Outter size
26*48mm
-
RF interface
SMA-K
The equivalent impedance is about 50 degrees
3 Size and pin definition
Pin No.
Item
Direction
Description

Chengdu Ebyte Electronic Technology Co.,Ltd. E220-400R30D User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd. 7
1
VCC
Input
Module power supply is referenced, voltage range: 4.5 to 5.5V DC
2
GND
Input
Module ground line
3
485A
Input/Output
A of the RS485 interface, A of the external RS485 device
4
485B
Input/Output
B of the RS485 interface, B of the external RS485 device
5
STB
Output
Low when idle, high for configuration and sending&receiving
6
Sending Light
-
Green, the light flashes when data is sent
7
Receiving
Light
-
Blue, the light flashes when data is sent
8
Fixed holes
-
Fixed holes
9
RF interface
-
SMA-K, equivalent impedance is about 50 s
10
Fixed holes
-
Fixed holes
11
Fixed holes
-
Fixed holes
4 Recommended wire diagram
No.
Description of the module's brief connection to the 485 device
1
RS485 interface A, external RS485 device A; RS485 interface B, external RS485 device B
2
The STB pin can be connected with an indicator (note the series flow limit resistance) as an indication that the module
is working properly; You can also not answer.
3
Direct access to the 433MHz/470MHz antenna at the RF interface.

Chengdu Ebyte Electronic Technology Co.,Ltd. E220-400R30D User Manual
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5 Detailed Functions
5.1 Fixed-point launch
5.2 Broadcast launch

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Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd. 9
5.3 Broadcast address
For example: Set the address of module A as 0xFFFF or 0x0000, and the channel as 0x04;
When module is the transmitter (transparent transmission), all modules under channel 0x04 will receive the data, the
purpose of broadcast is realized..
5.4 Monitor address
For example: Set the address of module A as 0xFFFF or 0x0000, and the channel as 0x04;
When module A is the receiver, it can receive the data sent from all modules under channel 0x04, the purpose of monitor is
realized.
5.5 STB details
STB is used for wireless sending &receiving buffer instructions and power-on configuration instructions.
STB indicates whether the module with data that has not been transmitted by wireless, or whether the received
wireless data that has not been totally transmitted through the serial port, or whether the module is powered up
during the configuration process.
5.5.1 Instructions during configuration
The module is powered will be in configuration mode on automatically, at which stage STB is high until the
configuration mode is exited
5.5.2 Wireless transmit instruction
The wireless is in the send state and the sending light will light up.
The wireless is in the receive state and the receive light will be lit.
6 Operating mode
Mode
Mode introduction
Note
General mode
Sending and receiving wireless datas
Wake-up mode
WOR as the sender, used with E220 serial series modules

Chengdu Ebyte Electronic Technology Co.,Ltd. E220-400R30D User Manual
Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd. 10
7 Factory default parameters
Model
Module type
Frequency
Address
Channel
Air rate
Porter rate
Serial format
Transmit
power
E22-400R30D
433.125M
Hz
0x0000
0x17
2.4kbps
9600
8N1
30dbm
8 Configuration instructions on computer
The below picture is the E220-400R30D configuration of the upper computer display interface, the user will be on the
module within 5 seconds after the power-up click read parameters or click on the reading parameters within 5 seconds
after the module re-powered, users can enter the configuration mode, parameters in the upper computer for rapid
configuration and reading. After the configuration is complete, click to close the serial port or turn off the upper computer
waiting for ten seconds, the module will enter the normal working state automatically.
In the configuration of the upper computer, the module address, frequency channel, network ID, and key are
deciture display mode;
Network address: 0 to 65535
Frequency channels: 0 to 83
Keys: 0 to 65535

Chengdu Ebyte Electronic Technology Co.,Ltd. E220-400R30D User Manual
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9 Hardware design
It is recommended to use DC regulatory power supply to power the module, the power ripple coefficient is as small
as possible, the module needs to be reliably grounded;
Please notice that the correct connection of the power supply positive and negative poles, such as back-linking, may
cause permanent damage to the module;
Please check the power supply to ensure that between the recommended supply voltage, if the maximum value is
exceeded, the module will be permanently damaged;
Please check the stability of the power supply, the voltage can not fluctuate significantly and frequently;
When designing power supply circuits for modules, it is often recommended to retain more than 30% of the residual
amount, and the whole machine is good for long-term stable operation;
The module should be kept as far away as possible from the power supply, transformers, high-frequency wiring and
other parts of the electromagnetic interference;
High-frequency digital wiring, high-frequency analog wiring, power cable must avoid the module below, if you
really need to go under the module, suppose the module is welded under the Top Layer, in the module contact part
of the Top Layer paved copper (all copper paved and well grounded), must be close to the module digital part and
the wire in The bottom Layer;
Assuming that the module is welded or placed on Top Layer, it is also wrong to walk freely on TheBottom Layer or
other layers, which can affect the stray and reception sensitivity of the module to varying degrees;
Assuming that there is a large electromagnetic interference around the module of the device will also greatly affect
the performance of the module, with the intensity of interference recommended appropriately away from the
module, if circumstances permit to do appropriate isolation and shielding;
Assuming that there is a large electromagnetic interference around the module (high-frequency digital,
high-frequency analog, power cable) will also greatly affect the performance of the module, with the intensity of
interference recommended appropriately away from the module, if circumstances permit to do appropriate isolation
and shielding;
If the communication line uses a 5V level, the 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 also 2.4GHz TTL protocol, e.g. USB 3.0;
Antenna installation structure has a great impact on module performance, it is necessary to ensure that the antenna
exposed and preferably vertical upward;
When the module is installed inside the enclosure, the antenna can be extended to the outside of the enclosure using
a high-quality antenna extension cable;
The antenna must not be installed inside the metal case, which will result in a significant reduction in transmission
distance.
10 FQA
10.1 The transmission distance is not ideal
When there is a straight-line communication barrier, the communication distance will be attenuated accordingly;

Chengdu Ebyte Electronic Technology Co.,Ltd. E220-400R30D User Manual
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Temperature, humidity, same frequency interference, will lead to increased loss rate of communication;
Ground absorption, reflection of radio waves, close to the ground test results are poor;
The sea water has a strong ability to absorb radio waves, so the seaside test effect is poor;
There is a metal object near the antenna, or placed in a metal shell, the signal attenuation will be very serious;
The power register is set incorrectly and the air rate is set too high (the higher the air rate, the closer the distance);
The low voltage of the power supply at room temperature is lower than the recommended value, and the lower the
voltage, the lower the power;
Use the antenna to match the module poorly or the quality of the antenna itself is a problem.
10.2 Module is easy to be damaged
Please check the power supply to ensure that between the recommended supply voltage, if the maximum value is
exceeded, the module will be permanently damaged;
Please check the stability of the power supply, the voltage can not fluctuate significantly and frequently;
Make sure that the installation process anti-static operation, high-frequency device static sensitivity;
Make sure that the humidity of the installation process should not be too high, some components are humidity
sensitive devices;
If there are no special needs, it is not recommended to use at high or low temperatures.
10.3 BER(Bit Error Rate) is high
There is the same frequency signal interference nearby, away from the source of interference or modify the
frequency, channel to avoid interference;
The power supply is not ideal may also cause garbled code, it is necessary to ensure the reliability of the power
supply;
Extension cords, feeders of poor quality or too long, will also result in a high error rate.
11 Production guidance
11.1 Reflow soldering temperature
Profile Feature
Sn-Pb Assembly
Pb-Free Assembly
Solder Paste
Sn63/Pb37
Sn96.5/Ag3/Cu0.5
Preheat Temperature min （Tsmin）
100℃
150℃
Preheat temperature max (Tsmax)
150℃
200℃
Preheat Time (Tsmin to Tsmax)(ts)
60-120 sec
60-120 sec
Average ramp-up rate(Tsmax to Tp)
3℃/second max
3℃/second max
Liquidous Temperature (TL)
183℃
217℃
Time（tL）Maintained Above（TL）
60-90 sec
30-90 sec
Peak temperature（Tp）
220-235℃
230-250℃
Aveage ramp-down rate（Tp to Tsmax）
6℃/second max
6℃/second max
Time 25℃ to peak temperature
6 minutes max
8 minutes max

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Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd. 13
11.2 Reflow soldering curve
12 E220 series
Model No.
Core IC
Frequency (Hz)
Tx power(dBm)
Distance(km)
Package
Size (mm)
Interface
E220-400R30D
LLCC68
433/470M
30
10
SMD
26*48
RS485
13 Antenna recommendation
The antenna is an important role in the communication process. A good antenna can largely improve the
communication system. Therefore, we recommend some antennas for wireless modules with excellent performance and
reasonable price.
Model No.
Type
Frequency
Hz
Interface
Gain
dBi
Height
mm
Cable
cm
Function feature
TX433-JZ-5
Rubber
antenna
433M
SMA-J
2.0
52
-
Short straight
&omnidirectional
TX433-JZG-6
Rubber
antenna
433M
SMA-J
2.5
62
-
Short straight
&omnidirectional
TX433-JW-5
Rubber
antenna
433M
SMA-J
2.0
50
-
Flexible &omnidirectional
TX433-JWG-7
Rubber
antenna
433M
SMA-J
2.5
75
-
Flexible &omnidirectional
TX433-JK-11
Rubber
antenna
433M
SMA-J
2.5
110
-
Flexible &omnidirectional

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TX433-JK-20
Rubber
antenna
433M
SMA-J
3.0
210
-
Flexible &omnidirectional
TX433-XPL-100
Sucker
antenna
433M
SMA-J
3.5
185
100
Small Sucker
antenna&cost-effective
TX433-XP-200
Sucker
antenna
433M
SMA-J
4.0
190
200
Middle sucker
antenna&low
consumption
TX433-XPH-300
Sucker
antenna
433M
SMA-J
6.0
965
300
Big sucker antenna&high
gain
TX490-JZ-5
Rubber
antenna
470/490M
SMA-J
2.0
50
-
Super Short straight
&omnidirectional
TX490-XPL-100
Sucker
antenna
470/490M
SMA-J
3.5
120
100
Small Sucker
antenna&cost-effective
14 Package for bulk order
Revision history
Version
Date
Description
Issued by
1.00
2021-03-04
Initial version
Linson

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Copyright ©2012–2021，Chengdu Ebyte Electronic Technology Co.,Ltd. 15
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