Ebyte E52-400/900NW22S Page 10 User Manual Download

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Chengdu Ebyte Electronic Technology Co.,Ltd..

E52-400/900NW22S User Manual

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Pin

number

Pin

name

Pin direction

Pin usage

PB3

Input / Output

Some function indication pins, high level by default, active low level
(connected to test suite LED2)

PB4

Input / Output

RF transmission indication pin, default high level, active low level
(connected to test suite LED1)

PB5

Input / Output

Not used yet, NC recommended

PB6

Input / Output

Not used yet, NC recommended

PB7

Input / Output

Not used yet, NC recommended

PB8

Input / Output

Not used yet, NC recommended

PA0

Input / Output

Default is high level, pull it low when power on to enter the Bootloader
(connected to the test suite KEY button)

PA1

Input / Output

Not used yet, NC recommended

PA2

Input / Output

UART_TXD, serial port transmit pin

PA3

Input / Output

UART_RXD, serial port receiving pin

PA4

Input / Output

Not used yet, NC recommended

PA5

Input / Output

Not used yet, NC recommended

GND

Input / Output

Ground wire, connected to the power reference ground

ANT

Input / Output

Antenna interface, 50Ω characteristic impedance (connected to SMA
interface of test kit)

GND

Input / Output

Ground wire, connected to the power reference ground

PA8

Input / Output

Not used yet, NC recommended

NRST

Input

Reset pin, default high level, active low level (connected to test suite RST
button)

PA9

Input / Output

Not used yet, NC recommended

PA12

Input / Output

Not used yet, NC recommended

PA11

Input / Output

Not used yet, NC recommended

PA10

Input / Output

Not used yet, NC recommended

PB12

Input / Output

Not used yet, NC recommended

PB2

Input / Output

Not used yet, NC recommended

PB0

Input / Output

Not used yet, NC recommended

PA15

Input / Output

Not used yet, NC recommended

PC13

Input / Output

Not used yet, NC recommended

GND

Input / Output

Ground wire, connected to the power reference ground

VDD

Input

Power supply VDD, the maximum input voltage is 3.6V, it is recommended
to supply power through 3.3V LDO

SWDIO

Debug pin

SWCLK

Debug pin

Summary of Contents for E52-400/900NW22S

Page 1: ...0 E52 400 900NW22S User Manual 400 900MHz 160mW TTL LoRa MESH Wireless Networking Module...

Page 2: ...Parameter value table 15 6 6 Parameter Notes 16 Basic Function Introduction 7 1 Get the main parameters of the module 18 7 2 Unicast communication Unicast 18 7 3 Multicast communication Multicast 19 7...

Page 3: ...Chengdu Ebyte Electronic Technology Co Ltd E52 400 900NW22S User Manual 12 2 Reflow soldering curve 32 XIII Related Models 33 XIV Antenna Guide 33 Revision History 34 About Us 34...

Page 4: ...m Ebyte laboratory testing and the actual results may be slightly different All trade names trademarks and registered trademarks mentioned in this article are the property of their respective owners a...

Page 5: ...te in network management users can also build a MESH network using only routing nodes Routing nodes are similar to terminal nodes but terminal nodes do not have routing functions Terminal nodes are ge...

Page 6: ...itiate connections with surrounding nodes to determine the data transmission path without the need for the coordinator to participate in path planning Network self healing When a link fails the routin...

Page 7: ...engdu Ebyte Electronic Technology Co Ltd 3 The network topology of routing nodes and terminal nodes is as shown in the figure 1 5 Application scenario Smart home and industrial sensors etc Wireless al...

Page 8: ...e V 1 8 3 3 3 6 3 3V can guarantee the output power If it exceeds 3 6V the module may be burned There is no LDO inside the module It is recommended to connect an external 3 3V LDO Communication level...

Page 9: ...n is 3 5dBi the antenna height is 2 5 meters and the air rate is 21 875Kbps 1 6 Km In a clear and open environment the antenna gain is 3 5dBi the antenna height is 2 5 meters and the air rate is 62 5K...

Page 10: ...yet NC recommended 12 PA5 Input Output Not used yet NC recommended 13 GND Input Output Ground wire connected to the power reference ground 14 ANT Input Output Antenna interface 50 characteristic imped...

Page 11: ...e 1 The wireless serial port module is TTL level please connect it to a 3 3V TTL level MCU 2 When using a 5V microcontroller please perform UART level conversion 3 TVS protection and capacitors need t...

Page 12: ...ing The test kit has connected the required pins of the module to the corresponding peripherals the most important of which is the TTL to USB circuit Users only need to connect the Micro USB to the co...

Page 13: ...nic Technology Co Ltd E52 400 900NW22S User Manual CopyriCopyright 2012 2023 Chengdu Ebyte Electronic Technology Co Ltd 9 AT INFO to read the module related parameters Figure 5 1 3 INFO command to vie...

Page 14: ...in non AT command sets will be considered transparent data and the module will initiate a data request so you should try to avoid sending data starting with AT After using the saved instructions all...

Page 15: ...network identification code Return network identifier AT TYPE Query the node type of the module Return module type routing node terminal node AT SRC_ADDR Query the address of the current module Impor...

Page 16: ...rns whether the data encryption function is enabled AT RESET_AUX Query whether LED2 changes during automatic reset Returns whether LED2 changes to turn on when the radio frequency is restarted AT RESE...

Page 17: ...option save Set module communication method Commonly used instructions generally broadcast and unicast option Communication method 1 4 save whether to save to Flash AT PANID panid save Set network ID...

Page 18: ...eader function is enabled AT SECURITY enable Set the data encryption function enable switch enable Whether the data encryption function is enabled AT RESET_AUX enable Set auto reset LED2 change switch...

Page 19: ...ot save power 9 22 Set module transmit power RF output power 9 22 dBm channel 0 99 Set the working channel of the E52 400NW22S module Working channel 0 99 Corresponding frequency 410 125 509 125 MHz O...

Page 20: ...l node 0x8000 0xFFFE group 0 65534 Set multicast group address Group address range 0x0000 0xFFFE port 1 14 Port settings Different ports correspond to different functions and the remaining ports have...

Page 21: ...are 15s 30s and 60s respectively When duplicate data frames are received within the broadcast filtering timeout time they will be filtered It is not recommended to shorten this time The default value...

Page 22: ...parameters of the module The main parameters of the module can be obtained through the AT INFO AT command It is mainly used for serial port display as shown in Figure 8 1 1 If it is difficult to use t...

Page 23: ...ing unable to be sent The basic operation steps of unicast are as follows Step 1 Module A uses the AT DST_ADDR 26034 0 command to configure the target address as the address of module B Step 2 Module...

Page 24: ...basic operation steps of multicast multicast are as follows Step 1 Use AT GROUP_ADD 123 for module B in advance to set the group Step 2 Module A uses the AT OPTION 2 0 command to change the communicat...

Page 25: ...an effectively prevent data collision and secondary forwarding User data cannot be module internal AT commands otherwise they will be recognized by the module as AT commands resulting in user data bei...

Page 26: ...data transmission similar to simple data transparent transmission User data cannot be module internal AT commands otherwise they will be recognized by the module as AT commands resulting in user data...

Page 27: ...e AT ROUTER_SAVE 0 command If you only want to clear the routing information in RAM you can clear it through the AT ROUTER_CLR 1 command The routing table can be read through the three instructions AT...

Page 28: ...ype C1 represents unicast frame C2 represents multicast frame C3 represents broadcast frame C4 represents anycast frame Data length user data length maximum value 200 bytes Network identification code...

Page 29: ...to ensure that modules in the entire network can receive this instruction However under broadcast configuration there will be no radio frequency data response The default target port used for normal...

Page 30: ...adio frequency and SUCCESS will be returned if the transmission is successful Step 6 Module A receives the module information responded from module B and outputs it through the serial port Figure 8 2...

Page 31: ...rface is as shown below The upper part is the basic function buttons to set the COM port baud rate and calibration By checking the bit you can perform operations such as parameter reading writing rest...

Page 33: ...rror or null will be returned The routing table will continuously update the path according to the data transmitted in the network to optimize network transmission efficiency It is not recommended to...

Page 34: ...e to the digital part of the module and routed on the Bottom Layer Assuming that the module is welded or placed on the Top Layer it is also wrong to route traces randomly on the Bottom Layer or other...

Page 35: ...ransmit power There is a poor match between the antenna and the module or there is a problem with the quality of the antenna itself 11 2 Modules are vulnerable to damage Please check the power supply...

Page 36: ...um Liquid phase temperature TL 183 217 Holding time above TL 60 90 seconds 60 90seconds Package peak temperature Tp Users cannot exceed the temperature indicated on the Moisture Sensitivity label User...

Page 37: ...30 8 0 3k 19 2k DIP 24 43 SMA K E32 868T30S 868M 30 8 0 3k 19 2k SMD 25 40 3 IPEX Stamp hole E32 915T20D 915M 20 3 0 3k 19 2k DIP 21 36 SMA K E32 915T20S 915M 20 3 0 3k 19 2k SMD 16 26 IPEX Stamp hol...

Page 38: ...rod omnidirectional antenna TX433 XPL 100 Suction cup antenna 433M 3 5 185 100 SMA J Small suction cup antenna cost effective TX433 XP 200 Suction cup antenna 433M 4 0 190 200 SMA J Small suction cup...

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