Ebyte E62-433T20D User manual

E62-433T20D User Manual
433MHz 100mW Wireless Module

Chengdu Ebyte Electronic Technology Co,;Ltd E62-433T20D user manual
Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co,;Ltd 1
CONTENT
1. OVERVIEW.................................................................................................................................. 3
1.1 INTRODUCTION..............................................................................................................................................................3
1.2 FEATURES......................................................................................................................................................................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
5.2.1 Indication of UART output.................................................................................................................................... 7
5.2.2 Configuration procedure of module...................................................................................................................... 7
5.6.4 Notes for AUX........................................................................................................................................................ 8
6. OPERATING MODE...................................................................................................................... 8
6.2 TRANSMISSION MODE (MODE 0)................................................................................................................................... 9
6.3CONFIGURE MODE (MODE 1)....................................................................................................................................... 10
7.INSTRUCTION FORMAT............................................................................................................10
7.1 DEFAULT PARAMETER.................................................................................................................................................10
7.2 READING OPERATING PARAMETERS............................................................................................................................ 10
7.3 READING VERSION NUMBER........................................................................................................................................ 11
7.4 PARAMETER SETTING INSTRUCTION............................................................................................................................ 11
8. HARDWARE DESIGN.................................................................................................................14
9 FAQ..................................................................................................................................................15
9.1 COMMUNICATION RANGE IS TOO SHORT..................................................................................................................... 15
9.2 MODULE IS EASY TO DAMAGE.....................................................................................................................................15
9.3 BER (BIT ERROR RATE)IS HIGH................................................................................................................................ 15
10 PRODUCTION GUIDANCE...................................................................................................... 15

Chengdu Ebyte Electronic Technology Co,;Ltd E62-433T20D user manual
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11 E62 SERIES...................................................................................................................................16
12 ANTENNA RECOMMENDATION........................................................................................... 16
13.PACKAGE FOR BATCH ORDER.............................................................................................17
REVISION HISTORY.......................................................................................................................17
ABOUT US......................................................................................................................................... 17

Chengdu Ebyte Electronic Technology Co,;Ltd E62-433T20D user manual
Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co,;Ltd
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1. Overview
1.1 Introduction
E62-433T20D 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.
Module features TDD (Time Division Duplex). User can transmit data while receiving, not have 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 user 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；
SMA access point, Easy connection of coaxial cable or external antenna.
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；

Chengdu Ebyte Electronic Technology Co,;Ltd E62-433T20D user manual
Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co,;Ltd
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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]
104
Instant power consumption
Receiving current [mA]
33
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
Max length per package
Buffer
2048 Byte
Internal Buffer
Modulation
GFSK
Communication interface
UART

Chengdu Ebyte Electronic Technology Co,;Ltd E62-433T20D user manual
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Package
DIP
Connector
2.54mm
Size
21*36mm
Antenna
SMA-K
50 ohm impedance
3 Size and pin definition
No.
Name
Direction
Function
1
M0
Input
（weak pull-up）
Work with M1 to decide 2 working modes of module (not suspended, if
not used, could be grounded).
2
LOCK
Input
Module synchronization indication: high level indicates that both sides of
communication have been synchronized, and data transmission can be

Chengdu Ebyte Electronic Technology Co,;Ltd E62-433T20D user manual
Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co,;Ltd
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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 (MCU, 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 MCU.
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
Fixed orifice
Fixed orifice
9
Fixed orifice
Fixed orifice
10
Fixed orifice
Fixed orifice
4 Connect to MCU
No.
Description（STM8L MCU）
1
The UART module is TTL level., please collect with MCU.
2
For some MCU works at 5VDC, it may need to add 4-10K pull-up resistor for the TXD & AUX pin.

Chengdu Ebyte Electronic Technology Co,;Ltd E62-433T20D user manual
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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 Configuration procedure of module
Only happened when power-on resetting or exiting sleep mode

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5.2.3 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.
5.3 LOCK description
6. Operating mode
Contents in below table are the introduction of input status of M1 & M0 and their corresponding mode:
Mode (0-1)
M1
M0
Mode introduction
Remark
Mode 0
0
0
UART and wireless channel are open,
Both sides must be in module
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).

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Transmitting
transparent transmission is on.
0 when transmitting.
Mode 1
configuration
0
1
Serial port at fixed 9600bps baud rate,
wireless off, configurable parameters
-
6.1 Mode switch
No.
Remarks
1
The user can decide the operating mode by the combination of M1 and M0. The two GPIO of MCU
can be used to switch mode. After modifying M1 or M0, 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 MCU transmits data “12345”, it
can switch to sleep mode immediately without waiting the rising edge of the AUX pin, also the
user’s main MCU 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 completing present mode task, which enables the user to omit the procedure of
AUX inquiry and switch mode swiftly. For example, when switching from transmitting mode to
receiving mode, the user MCU can go dormancy before mode-switch, using external interrupt
function to get AUX change so that the mode-switch can be realized.
5
This operation is very flexible and efficient. It is totally designed on the basis of the user MCU’s
convenience, at the same time the work load and power consumption of the whole system has been
reduced and the efficiency of whole system is largely improved.
6.2 Transmission mode (Mode 0)
Type
When M0 = 0, module works in mode 0
Ordinary
transmitting
operation
User can transmit the data when the modules are synced (PINLOCK = 1(high level)).
Benefit of the TDD feature, user can perform transmitting while receiving. The maximum
size of the data which can be transmit at one time is 2048 Bytes. After the AUX has
turned to 0(low-level), User can perform another 2048 Bytes transmitting operation. The
TDD feature is available whatever the air data rate or the baud rate is.
Continuous
transmitting
operation
The module can transmit data continuously with some particular combination of air data
rate and baud rate, which has been show below.
Air Data Rate = 16Kbps, Baud rate <= 2400bps;
Air Data Rate = 32Kbps, Baud rate <= 4800bps;