Ebyte E62-433T20S User manual

E62-433T20S User Manual
433MHz 100mW Wireless Module

Chengdu Ebyte Electronic Technology Co,;Ltd E62-433T20S user manual
Copyright ©2012–2019，Chengdu EbyteElectronic Technology Co,;Ltd 1
目录
1. OVERVIEW ..................................................................................................................................3
1.1 INT RODUCTION................................................................................................................................................................................3
1.2 FEAT URES.........................................................................................................................................................................................3
2. SPECIFICATION AND PARAMETER .....................................................................................4
2.1 LIMIT PARAMETER..........................................................................................................................................................................4
2.2 OPERATING PARAMETER................................................................................................................................................................4
3 SIZE AND PIN DEFINITION .........................................................................................................5
4 CONNECT TO MCU .......................................................................................................................6
5 FUNCTION DESCRIPTION ..........................................................................................................7
5.1 RESET ............................................................................................................................................7
5.2.1 Indication of UART output ...................................................................................................................................................7
5.2.2 Indication of wireless transmitting .....................................................................................................................................7
5.2.3 Configuration procedure of module ....................................................................................................................................8
5.6.4 Notes for AUX .........................................................................................................................................................................8
6.OPERATING MODE .......................................................................................................................9
6.2 TRANSMISSION MODE (MODE 0) ............................................................................................................................................... 10
6.3.CONFIGURE MODE (MODE 1)..................................................................................................................................................... 10
7.INSTRUCTION FORMAT........................................................................................................... 10
7.1 DEFAULT PARAMETER.................................................................................................................................................................. 11
7.2 READING OPERATING PARAMETERS........................................................................................................................................... 11
7.3 READING VERSION NUMBER....................................................................................................................................................... 11
7.4 PARAMETER SETTING INST RUCTION.......................................................................................................................................... 11
8. HARDWARE DESIGN................................................................................................................ 14
9 FAQ................................................................................................................................................. 15
9.1 COMMUNICATION RANGE IS TOO SHORT................................................................................................................................... 15
9.2 MODULE IS EASY TO DAMAGE.................................................................................................................................................... 15

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9.3 BER(BIT ERROR RAT E) IS HIGH................................................................................................................................................. 15
10 PRODUCTION GUIDANCE ..................................................................................................... 15
11 E62 SERIES .................................................................................................................................. 16
12 ANTENNA RECOMMENDATION .......................................................................................... 16
13.PACKAGE FOR BATCH ORDER ............................................................................................ 17
REVISION HISTORY...................................................................................................................... 18
ABOUT US ........................................................................................................................................ 18

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1. Overview
1.1 Introduction
E62-433T20S is a full-duplex wireless transceiver module
with TTL level output, operates at 425-450MHz (default:
433MHz), transparent transmission is available. Module features
FHSS (Frequency-Hopping Spread Spectrum). During the
transmitting procedure, both sides will perform frequency-
hopping operation automatically in at most 52 channels on the
basis of frequency-hopping logic (the number of FHSS channel
and sequence are configurable.), which greatly improves the anti-
interference performance. The 433M frequency hopping technology is in the front row of this industry.
Module features TDD (Time Division Duplex). User can transmit data while receiving, not ha ve to wait for the end
of receiving. The module can transmit data continuously with some particular combination of air data rate (like air data
rate is 64k, 9600bsp) and baud rate. Under this circumstance, there is no limitation for the size of the data us er can transmit
in one transmission operation and it achieve a very low latency communication link.
The module features FEC (Forward Error Correction) algorithm, which ensure its high coding efficiency & good
correction performance. In the case of sudden interference, it can correct the interfered data packets proactively, so that the
reliability & transmission range are improved correspondingly. But without FEC, those data packets can only be dropped.
1.2 Features
Communication distance tested is up to 1km
Maximum transmission power of 100mW, software multi-level adjustable；
Support the global license-free ISM 433MHz band；
Support air date rate of 16kbps～128kbps；
Support advanced FHSS frequency hopping, improve anti-interference performance.
Based on TDD, time division full duplex bidirectional pass-through can be realized.
Low power consumption for battery supplied applications ；
Support 3.3V~5.2V power supply, power supply over 5.0V can guarantee the best performance ；
Industrial grade standard design, support -40 ~ 85 °C for working over a long time；
IPEX/external/spring, user can choose accordingly.
1.3 Application
Home security alarm and remote keyless entry；
Smart home and industrial sensors ；
Wireless alarm security system；
Building automation solutions；

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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
Remarks
Min.
Max.
Power supply（V）
0
5.2
Voltage over 5.2V 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
-
2.2 Operating parameter
Main parameter
Performance
Remark
Min
Typ.
Max.
Operating voltage（V）
3.3
5.0
5.2
≥5.0 V ensures output power
Communication level（V）
-
3.3
-
For 5V TTL, it may be at risk of
burning down
Operating temperature（℃）
-40
-
85
Industrial design
Operating frequency（MHz）
425
-
450.5
Support ISM band
Power
consumption
Transmitting current [mA]
-
102
-
Instant powerconsumption
Receiving current [mA]
-
34
-
-
Turn-off current [μA]
-
4
-
Software is shut down
Max Tx power（dBm）
19.6
20.0
21.4
-
Receiving sensitivity（dBm）
-105
-106
-107
Air data rate is 64kbps
Air data rate（bps）
16k
64k
128k
Controlled via user’s programming
Main parameter
Description
Remark
Distance for reference
1000m
Test condition：clear and open area, antenna gain: 5dBi，
antenna height: 2.5m，air data rate: 64kbps
TX length
1024 Byte
Internal automatic time division logic subcontracting
Buffer
2048 Byte
Internal Buffer

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Modulation
GFSK
-
Communication interface
UART
-
Package
DIP
-
Connector
2.00mm
-
Size
17*30mm
-
Antenna
IPEX/EXTERNAL/SPRING
50 ohm impedance
3 Size and pin definition
No.
Name
Direction
Function
1
M0
Input
（weak pull-up）
Work with M 1 to decide 4 working modes of module (not suspended, if
not used, could be grounded).

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2
LOCK
Input
Module synchronization indication: high level indicates that both sides of
communication have been synchronized, and data transmission can be
carried out; low level indicates that both sides have not been
synchronized, at which time data transmission will lead to data loss
3
RXD
Input
TTL UART inputs, connects to external (MCU, PC) TXD output pin. Can
be configured as open-drain or pull-up input.
4
TXD
Output
TTL UART outputs, connects to external RXD (M CU, PC) input pin. Can
be configured as open-drain or push-pull output
5
AUX
Output
To indicate module ’ s working status & wakes up the external M CU.
During the procedure of self-check initialization, the pin outputs low
level. Can be configured as push-pull output (suspending is allowed).
6
VCC
Input
Power supply ：2.1~ 5.5V DC
7
GND
Input
Ground
8
ANT
Output
Antenna interface (hf signal output pin)
9
GND
Output/Input
Antenna interface (high frequency signal reference ground)
10
GND
Output
Ground
11
GND
Output
Ground
4 Connect to MCU
No.
Description（STM8L MCU）
1
The UART module is TTL level., please collect with M CU.
2
For some MCU works at 5VDC, it may need to add 4-10K pull-up resistor for the TXD & AUX pin.

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5 Function description
5.1 Reset
When the module is powered, AUX outputs low level immediately, conducts hardware self-check and sets the operating
mode based on user’s parameters. During the process, the AUX remains low level. After the process completed, the AUX
outputs high level and starts to work as per the operating mode combined by M1 and M0. Therefore, users need to wait the
AUX rising edge as the start of module’s normal work.
5.2 AUX description
AUX Pin can be used as indication for wireless send & receive buffer and self-check.
It can indicate whether there are data that are not sent yet via wireless way, or whether all wireless data has been sent
through UART, or whether the module is still in the process of self-check initialization.
5.2.1 Indication of UART output
To wake up external MCU
5.2.2 Indication of wireless transmitting
Buffer (empty): the internal 256 bytes data in the buffer are written to the RFIC (Auto sub -packaging).
When AUX=1, the user can input data less than 256 bytes continuously without overflow. Buffer (not empty): when
AUX=0, the internal 256 bytes data in the buffer have not been written to the RFIC completely. If the user starts to
transmit data at this circumstance, it may cause overtime when the module is waiting for the user data, or transmitting
wireless sub package.
When AUX = 1, it does not mean that all the UART data of the module have been transmitted already, perhaps the
last packet of data is still in transmission.

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5.2.3 Configuration procedure of module
Only happened when power-on resetting or exiting sleep mode
5.6.4 Notes for AUX
No.
Description
1
For function 1 & function 2 mentioned above, the priority should be given to the one with low level output, which means
if it meets each of any low level output condition, AUX outputs low level, if none of the low level condition is met, AUX
outputs high level.
2
When AUX outputs low level, it means the module is busy & cannot conduct operating mode checking. Within 1ms since
AUX outputs high level, the mode switch will be completed.
3
After switching to new operating mode, it will not work in the new mode immediately until AUX rising edge lasts for
2ms . If AUX stays on the high level, the operating mode switch can be affected immediately.
4
When the user switches to other operating modes from mode 3 (sleep mode) or it’s still in reset process, the module will
reset user parameters, during which AUX outputs low level.

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5.7 LOCK description
6.Operating mode
Contents in below table are the introduction of input status of M1 & M0 and their corresponding mode:•
Mode(0-3)
M1
M0
Mode introduction
Remark
Mode 0
Transmittin
g
0
0
UART and wireless channel are open,
transparent transmission is on.
Both side must be in module 0 when transmitting.
Mode 1
configuratio
n
0
1
Serial port at fixed 9600bps baud rate,
wireless off, configurable parameters
-See detailed explanation of working parameters
6.1 Mode switch
No.
Remarks
1
The user can decide the operating mode by the combination of M 1 and M0. The two GPIO of M CU can be used to
switch mode. After modifying M1 or M 0, it will start to work in new mode 1 ms later if the module is free. If there are
any serial data that are yet to finish wireless transmitting, it will start to work in new mode after the UART transmitting
finished. After the module receives the wireless data & transmits the data through serial port, it will start to work in new
mode after the transmitting finished. Therefore, the mode-switch is only valid when AUX outputs 1, otherwise it will
delay.
2
For example, in mode 0 or mode 1, if the user inputs massive data consecutively and switches operating mode at the
same time, the mode-switch operation is invalid. New mode checking can only be started after all the user’s data process
completed. It is recommended to check AUX pinout status and wait 2ms after AUX outputs high level before switching
the mode.
3
If the module switches from other modes to stand-by mode, it will work in stand-by mode only after all the remained
data process completed. The feature can be used to save power consumption. For example, when the transmitter works in
mode 0, after the external M CU transmits data “12345”, it can switch to sleep mode immediately without waiting the
rising edge of the AUX pin, also the user’s main M CU will go dormancy immediately. Then the module will transmit all
the data through wireless transmission & go dormancy 1ms later automatically, which reduces MCU working time &
save power.
4
Likewise, this feature can be used in any mode-switch. The module will start to work in new mode within 1ms after
1
Due to the characteristics of TDD and frequency modulation spread spectrum, the module can operate at the same time.
2
Lock is used to indicate the synchronization situation for both side (transmitter and receiver). When lock is high level,
synchronization completed, communication is available. Otherwise when lock is low level, synchronization completed,
communication is unavailable (data lost).