EBYTE E52-400/900NW22S LoRa MESH Wireless Networking Module User Manual

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Network encryption key

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Encryption key [0~0x7FFF FFFF]

Parameter Notes

• If the setting command does not have the save option parameter, it will be saved in Flash.
• After the baud rate and parity bit are set, a reboot is required to take effect. You can use “AT+RESET” to reset.
• Address and network identification code are generally not recommended to be set to 0xFFFF. 0xFFFF is used as a broadcast address and broadcast network.
• Node type will change the highest bit of the local address. Generally, you need to set the node type after setting the local address .
• generally keeps the default port 1. Only in remote configuration, the target port needs to be changed to port 14, and the other ports have no function yet.
• Multicast radius is generally kept at the default level 2. The larger the multicast radius is, the larger the coverage area is.
• CSMA random avoidance time generally keeps the default value of 127 (random avoidance time is 0~127ms).
• The longer the random avoidance time, the slower the network response speed, but the lower the possibility of conflict. If you want to modify this time, you need to pay attention to the response time and conflict probability of the entire network. It is generally not recommended to shorten this time.
• The maximum number of consecutive failures is generally kept at the default value of 3. The maximum number of consecutive failures will affect the probability of re-establishing routes.
• The smaller the maximum number of consecutive failures is, the shorter the time it takes to re-establish the route when a link fails or the communication is abnormal. However, re-establishing the route takes a certain amount of time, so it is generally sufficient to keep the default. When communication is successful, the current number of failures will be reset.
• The RF automatic reset time generally keeps the default value of 5 minutes. When data is received, the radio frequency automatic reset time will be reset, which will not affect normal data transmission. This time can be shortened in places with severe environmental interference. Setting it to 0 minutes will turn off the automatic restart function.
• The default values of broadcast filter timeout at different airspeeds are 15s, 30s, and 60s respectively.
• When duplicate data frames are received within the broadcast filtering timeout , they will be filtered. It is not recommended to shorten this time.
• The default values of request-response timeout at different airspeeds are 2.5s, 5s, and 15s respectively.
• NO ACKUnder unicast, the target device needs to return a response ACK. If it gets a response ACK from the target address, it will return SUCCESS immediately. Otherwise, it will wait for the request-response timeout to end before returning NO ACK.
• The more levels of routing devices passed through, the longer the request-response timeout should be. Under the default parameters, about 5 levels of routing devices can be supported.
• The default values of routing request timeout at different airspeeds are 2.5s, 5s, and 15s respectively. Under unicast, you need to initiate a routing request first, collect the routing information of each device within the routing request timeout , and then initiate another data request after the end. The routing request timeout needs to cover the entire process from the initiation of the routing request to the complete completion of the network. If the route is not successfully established, NO ROUTER will be returned. The greater the number of devices, the longer the routing request timeout should be. Under the default parameters, about 50 devices can be supported to establish routes. More than 50 devices need to extend this time through instructions.
• When “OUT OF CACHE” is returned, it means that the sending buffer is full. The sending buffer area can cache 5 items. Under normal circumstances, the buffer area will not be full. It will only occur when the interval between consecutive sendings is too fast, and all sending data buffers will be forcibly cleared inside the module.
• The network protocol layer uses data RSSI to optimize the entire network link. The routing nodes will automatically select the best routing nodes for routing. Users no longer need to consider signal strength.

Basic Function Introduction

Get the main 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 the MCU to parse it, the correct operation of the MCU should be obtained using a separate AT command, as shown in Figure 8.1.2.

Unicast communication (Unicast)

• Unicast communication method requires knowing the address of the target module (the address of module B) in advance. Please refer to Chapter 8.1 for the specific steps to obtain basic parameters.
• When initiating a unicast request for the first time, you need to wait for route establishment (the waiting time is different under different airspeeds). After the route establishment is completed, the module will automatically send user data 1234567890 again.
• After the route is established, access again does not need to wait for the route to be re-established until the number of consecutive communication failures with a node exceeds 3 times.
• The routing table can be queried through the “AT+ROUTER_CLR=?” command.
• The data frame header can be closed using the “AT+HEAD=0” command.
• User data cannot be module internal AT commands, otherwise they will be recognized by the module as AT commands, resulting in user data being 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 A uses the “AT+OPTION=1,0” command to change the communication mode to unicast mode (Unicast);
  • Step 3: Module A sends user data 1234567890. If the transmission is successful, SUCCESS will be returned; if the transmission fails, NO ROUTE or NO ACK will be returned. NO ROUTE means that the route establishment failed; NO ACK means that the route was established successfully but no response was received. If NO ACK occurs three times, the routing table needs to be re-established.
  • Step 4: Module B receives the (ASCII code) 1234567890 sent from module A and converts it into HEX format as 31 32 33 34 35 36 37 38 39 30 (showing different encoding), and adds additional data frame headers.
• The time for first initiating a unicast request is different under different airspeeds, which is at least 1.5 routing request timeouts:
• It takes about 4 seconds to initiate a unicast request for the first time at 62.5K airspeed.
• It takes about 8 seconds to initiate a unicast request for the first time at 21.875K airspeed.
• It takes about 25 seconds to initiate a unicast request for the first time at 7K airspeed.
• Figure 8.2.1 Unicast communication

Multicast communication (Multicast)

• Multicast (multicast) communication method requires group management of target modules in advance. All target modules need to be grouped in advance using “AT+GROUP_ADD=”.
• can be understood as a public address, and each module can set up to 8 group addresses.
• In multicast mode, routing needs to be re-established every time. It is recommended that the interval between consecutive multicast initiations be about 5 seconds.
• “AT+GROUP_DEL=” can delete the group address with the public address group and save the new group information to Flash.
• “AT+GROUP_CLR=1” can clear all group addresses and also clear the group information in Flash.
• The routing table can be queried through the “AT+ROUTER_CLR=?” command.
• The data frame header can be closed using the “AT+HEAD=0” command.
• The user data cannot be an internal AT command of the module, otherwise it will be recognized by the module as an AT command, resulting in the inability to send user data.
• The 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 communication mode to multicast mode (Multicast);
  • Step 3: Module A uses the “AT+DST_ADDR=123,0” command to change the communication mode to multicast mode and set the target group address;
  • Step 4: Module A sends user data 1234567890. If the transmission is successful, SUCCESS will be returned; if the transmission fails, NO ROUTE or NO ACK will be returned. NO ROUTE means that the route establishment failed; NO ACK means that the route was established successfully but no response was received. If NO ACK occurs three times, the routing table needs to be re-established.
  • Step 5: Module B receives the (ASCII code) 1234567890 sent from module A and converts it into HEX format as 31 32 33 34 35 36 37 38 39 30 (showing different encoding), and adds additional data frame headers.
• The time for first initiating a unicast request is different under different airspeeds, which is at least 1.5 routing request timeouts:
• It takes about 4 seconds to initiate a unicast request for the first time at 62.5K airspeed.
• It takes about 8 seconds to initiate a unicast request for the first time at 21.875K airspeed.
• It takes about 25 seconds to initiate a unicast request for the first time at 7K airspeed.

Broadcast

• The broadcast communication method does not require knowing the address of the target module.
• There is no sending timeout under the broadcast module, and there is no need to establish a route, but all receiving modules will forward the data again after receiving it. The module’s built-in CSMA avoidance mechanism and broadcast filtering mechanism can 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 being unable to be sent.
• The basic operation steps of broadcasting are as follows:
  • Step 1: Module A uses the “AT+OPTION=3,0” command to change the communication mode to broadcast mode (Broadcast);
  • Step 2: Module A sends user data 1234567890. Successfully sent will return SUCCESS, the user can wait for SUCCESS to determine whether the data is sent successfully;
  • Step 3: Module B received the (ASCII code) 1234567890 sent from module A and converted it into HEX format as 31 32 33 34 35 36 37 38 39 30 (showing different encoding), and added additional data frame headers.

Anycast function (Anycast)

Anycast communication is generally used for communication between different networks, and different networks have different network identification codes. Unicast, multicast, and broadcast communication methods cannot directly interact with data between networks. In this case, anycast can be used to interact with data between different networks.

• Anycast communication can send data to a single or all nodes within the single-hop coverage according to the set target address.
• Data cannot be relayed and responded to in anycast mode.
• Anycast cannot guarantee the reliability of 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 being unable to be sent.
• The basic operation steps of anycast 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 A or use the “AT+DST_ADDR=65535,0” command to configure the target address to all modules;
  • Step 3: Module A uses the “AT+OPTION=4,0” command to change the communication mode to anycast mode (Anycast);
  • Step 4: Module A sends user data 1234567890. If the transmission is successful, SUCESS will be returned. The user can wait for SUCCESS to determine whether the data is sent successfully;
  • Step 5: Module B receives the (ASCII code) 1234567890 sent from module A and converts it into HEX format as 31 32 33 34 35 36 37 38 39 30 (showing different encoding), and adds additional data frame headers.

Introduction to routing table

The routing table is automatically established by routing requests and cannot be modified manually. It is stored in RAM and will be lost if the module is restarted. The routing table is only for viewing paths. Users do not need to pay attention to it. There is no need  to parse AT commands on the routing table.

• The routing table can be saved to Flash through the “AT+ROUTER_SAVE=1” command, and can be loaded through the “AT+ROUTER_READ=1” command when powering on again.
• If you want to clear the routing information saved in Flash, you can clear it through the “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+ROUTER_CLR=?”, “AT+ROUTER_SAVE=?”, and “AT+ROUTER_READ=?”.
• The routing table contains parameters such as target address, lower-level address, score, signal strength, etc.
• When the DST and HOP in the routing table are different, it means that the module needs to pass through the routing node to reach the target module.
• The routing information of NO.03 and NO.04 in the figure below together form a path to the target address 59020:
• The routing information of NO.04 tells the module that if it wants to send data to the module of 59020, the next level should send the data through the routing node of 26017.
• The routing information of NO.03 tells the module that if it wants to send data to the module of 26111, the next level can directly transmit the data to the routing node of 26111.

Additional header information

• When the module receives data from other modules, additional frame header information will be added to the serial port output data.
• Frame header meaning:****
  Frame type| Data length| Network ID| Initial address| Target address| User data
  ---|---|---|---|---|---
  C1| 03| 34 12| 8E 6C| 28 64| 01 02 03
  C3| 01| 34 12| AA 71| 28 64| AA
  • Frame type: 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: Different networks have different network identification codes. This information can be used to know which network the source is;
  • Address: Specifies the source and destination of data;
  • User data: User data area, maximum 200 bytes.
• The address and network identification in the data frame header is low-order first, such as network identification 34 12, which should be 0x1234, making it easier to use the structure to parse it.
• The data frame header can be turned off through the “AT+HEAD=0” command.

Remote Configuration

Introduction to remote configuration

• In addition to basic communication, the module also supports remote configuration functions. Since remote configuration can change the basic communication parameters of the entire network, it needs to be used with caution to avoid changing important parameters of some nodes and preventing normal communication with the previous network.
• Remote configuration can be divided into two types: single-point configuration and broadcast configuration. In both configuration modes, the instruction will be executed after a certain period of delay. The purpose is to maintain the current parameters and continue to forward the data to the next-level module to ensure that the data can be transmitted to the entire network and then take effect.
• In single-point configuration, routing also needs to be established in advance. When the target receiving module receives the correct AT command, it will return “+OK” or “+FAIL” through the radio frequency to indicate the module execution result. Under broadcast configuration, it is still the same as basic broadcast communication. All modules that receive data will forward the data once 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 basic communication is port 1. The corresponding function is to output the data sent by the user directly through the serial port and add additional information frame headers. The target port used for remote configuration is port 14. The corresponding function is to parse the remote configuration instructions sent by the user and delay execution or response after some time. The remote configuration command needs to be additionally added with “++” to distinguish it from the local configuration. After the remote configuration is completed, the target port should be restored to port 1 in time to avoid affecting the next basic communication.
• The delay time is different under different airspeeds. The specific delay time is as follows (a route establishment timeout time):
  • The command delay execution time at 62.5K airspeed is about 2.5 seconds.
  • The command delay execution time is about 5 seconds at 21.875K airspeed.
  • The command delay execution time is about 15 seconds at 7K airspeed.

Introduction to remote single-point configuration
The basic steps for remote single-point configuration 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 A uses the “AT+OPTION=1,0” command to change the communication mode to unicast mode (Unicast);
• Step 3: Module A uses the “AT+DST_PORT=14,0” command to modify the target port to the remote parsing AT command function;
• Step 4: Module A sends the AT command “++AT+PANID=4660,0”. If sent successfully, SUCCESS will be returned;
• Step 5: After receiving the instruction, module B will output the execution result of the corresponding instruction through the serial port after waiting for a route establishment timeout, and respond with “+OK:” or “+FAIL:” through the radio frequency, and will send the current module The parameters are sent via radio frequency, and SUCCESS will be returned if the transmission is successful;
• Step 6: Module A receives the module information response from Module B and outputs it through the serial port.

Introduction to remote broadcast configuration
The basic steps for remote broadcast configuration are as follows:

• Step 1: Module A uses the “AT+OPTION=3,0” command to change the communication mode to broadcast mode (Broadcast);
• Step 2: Module A uses the “AT+DST_PORT=14,0” command to modify the target port to the remote parsing AT command function;
• Step 3: Module A sends the AT command “++AT+PANID=4660,0”. If sent successfully, SUCCESS will be returned;
• Step 4: After receiving the instruction, module B waits for a route establishment timeout period and then outputs the execution result of the corresponding instruction through the serial port.

Introduction to the host computer

• Users can use the host computer provided by the official website to configure the module.
• When using it, the user needs to virtualize the module serial port into a COM port. The host computer interface 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, restoring defaults, and restarting the module.
• The lower left side is the parameter area.
• The right side below is the log area, which will print and display the corresponding AT commands executed.
• Users can operate the module based on the logs.
• The second page is the multicast-related group address settings. Users can add, delete and query multicast group addresses.
• The multicast group address supports up to 8 different addresses.
• The third page is the routing table-related functions. Users can read and clear the routing table, and can also perform
• Flash-related read and write operations. Due to the huge amount of data, it takes about 4 seconds to read the routing table. If there is no routing table information, the error “read error 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 read the routing table at low baud rates such as 1200, 2400, 4800, etc., as it will take a long time.
• The fourth page is the online upgrade (IAP) function. Users can upgrade the firmware.
• Under normal circumstances, there is no need to upgrade.
• If you accidentally enter the IAP upgrade mode and keep powering on for about 30 seconds, the module will automatically exit the IAP upgrade mode and will not exit the IAP upgrade mode even if it is restarted.

Hardware Design

• It is recommended to use a DC regulated power supply to power the module. The power ripple coefficient should be as small as possible, and the module must be reliably grounded;
• Please pay attention to the correct connection of the positive and negative poles of the power supply. Reverse connection may cause permanent damage to the module;
• Please check the power supply to ensure that it is within the recommended power supply voltage. If it exceeds the maximum value, it will cause permanent damage to the module;
• Please check the stability of the power supply. The voltage cannot fluctuate greatly and frequently;
• When designing the power supply circuit for the module, it is often recommended to reserve more than 30% margin, so that the whole machine can work stably for a long time;
• The module should be kept as far away as possible from power supplies, transformers, high-frequency wiring and other parts with high electromagnetic interference;
• High-frequency digital traces, high-frequency analog traces, and power traces must be avoided under the module. If it is necessary to pass under the module, assume that the module is welded on the Top Layer, and ground copper is laid on the Top Layer of the module contact part (all paved Copper and well-grounded), which must be close 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 layers, which will affect the spuriousness and receiving sensitivity of the module to varying degrees;
• Assuming that there are devices with large electromagnetic interference around the module that will greatly affect the performance of the module. It is recommended to stay away from the module according to the intensity of the interference. If the situation allows, appropriate isolation and shielding can be done;
• Assuming that there are traces with large electromagnetic interference around the module (high-frequency digital, high-frequency analog, power traces), which will also greatly affect the performance of the module. According to the intensity of the interference, it is recommended to stay away from the module appropriately. This can be done if the situation allows Proper isolation and shielding;
• If the communication line uses 5V level, a 1k-5.1k resistor must be connected in series (not recommended, as there is still a risk of damage);
• Try to stay away from some TTL protocols whose physical layer is also 2.4GHz, such as USB3.0;
• The antenna installation structure has a great impact on module performance. Make sure the antenna is exposed and preferably vertically upward;
• When the module is installed inside the casing, you can use a high-quality antenna extension cable to extend the antenna to the outside of the casing;
• The antenna must not be installed inside a metal shell, as this will greatly reduce the transmission distance.

The transmission distance is not ideal

• When there are straight-line communication obstacles, the communication distance will be correspondingly attenuated;
• Temperature, humidity, and co-channel interference will lead to increased communication packet loss rate;
• The ground absorbs and reflects radio waves, and the test effect is poor when close to the ground;
• Seawater has a strong ability to absorb radio waves, so the seaside test results are poor;
• If there are metal objects near the antenna, or if it is placed in a metal case, the signal attenuation will be very serious;
• The power register setting is wrong 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. The lower the voltage, the smaller the transmit power;
• There is a poor match between the antenna and the module or there is a problem with the quality of the antenna itself.

Modules are vulnerable to damage

• Please check the power supply to ensure that it is within the recommended power supply voltage. If it exceeds the maximum value, it will cause permanent damage to the module;
• Please check the stability of the power supply. The voltage cannot fluctuate greatly and frequently;
• Please ensure anti-static operation during installation and use, as high-frequency devices are sensitive to static electricity;
• Please ensure that the humidity during installation and use should not be too high, as some components are humidity-sensitive devices;
• If there are no special needs, it is not recommended to use it at too high or too low temperature.

The bit error rate is too high

• If there is co-channel signal interference nearby, stay away from the interference source or modify the frequency or channel to avoid interference;
• An unsatisfactory power supply may also cause garbled code, so be sure to ensure the reliability of the power supply;
• Extension cords and feeders of poor quality or too long will also cause a high bit error rate.

Welding Operation Guidance

Reflow temperature

Reflow soldering curve characteristics| Assembly with lead process| Lead free process assembly
---|---|---
Preheating/insulation| Minimum temperature

(Tsmin)

| 100℃| 150℃
Maximum temperature

(Tsmax)

| 150℃| 200℃
Time (Tsmin~Tsmin)| 60-120 seconds| 60-120 seconds
Heating slope (TL~Tp)| 3 ℃/s, maximum| 3 ℃/s, maximum
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.| Users cannot exceed the temperature indicated on the “Moisture Sensitivity” label of

the product.

Time (Tp) within 5 ℃ of the specified grading

temperature (Tc), as shown in the following figure

| 20 seconds| 30 seconds
Cooling slope (Tp~TL)| 6℃/seconds ， maximum| 6℃/seconds ， maximum
Time from room temperature to peak temperature| 6 minutes, maximum| 8 minutes, maximum
※The peak temperature (Tp) tolerance of the temperature curve is defined as the user’s upper limit

Reflow soldering curve

Related Models

Product model

| Carrier frequency Hz| Transmi ssion power dBm| Test distance km| Air rate bps| Packaging form| product size mm| Antenna form
---|---|---|---|---|---|---|---
E32-170T30D| 170M| 30| 8| 0.3k ～ 9.6k| DIP| 2443| SMA-K
E32-433T20DC| 433M| 20| 3| 0.3k ～ 19.2k| DIP| 2136| SMA-K
E32-433T20S1| 433M| 20| 3| 0.3k ～ 19.2k| SMD| 17*25.5| Stamp hole
E32-433T20S2

T

| 433M| 20| 3| 0.3k ～ 19.2k| SMD| 17*30| IPEX/Stamp hole
E32-400T20S| 433/470

M

| 20| 3| 0.3k ～ 19.2k| SMD| 1626| IPEX/Stamp hole
E32-433T30D| 433M| 30| 8| 0.3k ～ 19.2k| DIP| 2443| SMA-K
E32-433T30S| 433M| 30| 8| 0.3k ～ 19.2k| SMD| 2540.3| IPEX/Stamp hole
E32-868T20D| 868M| 20| 3| 0.3k ～ 19.2k| DIP| 2136| SMA-K
E32-868T20S| 868M| 20| 3| 0.3k ～ 19.2k| SMD| 1626| IPEX/Stamp hole
E32-868T30D| 868M| 30| 8| 0.3k ～ 19.2k| DIP| 2443| SMA-K
E32-868T30S| 868M| 30| 8| 0.3k ～ 19.2k| SMD| 2540.3| IPEX/Stamp hole
E32-915T20D| 915M| 20| 3| 0.3k ～ 19.2k| DIP| 2136| SMA-K
E32-915T20S| 915M| 20| 3| 0.3k ～ 19.2k| SMD| 1626| IPEX/Stamp hole
E32-915T30D| 915M| 30| 8| 0.3k ～ 19.2k| DIP| 2443| SMA-K
E32-915T30S| 915M| 30| 8| 0.3k ～ 19.2k| SMD| 25*40.3| IPEX/Stamp hole

Antenna Guide
Antennas play an important role in the communication process, and often inferior antennas can have a significant impact on the communication system. Therefore, our company recommends some antennas as supporting our wireless module, with excellent performance and reasonable price.

Product model| Type| Frequ ency band| Gain| Size| Feeder| Interface| Characteristic
---|---|---|---|---|---|---|---
Hz| dBi| mm| cm
TX433-NP-4310| Flexible

antenna

| 433M| 2.0| 10×43| –| Weld| Flexible FPC soft antenna
TX433-JZ-5| Rubber rod

antenna

| 433M| 2.0| 52| –| SMA-J| Ultra short straight,

omnidirectional antenna

TX433-JZG-6| Rubber rod

antenna

| 433M| 2.5| 62| –| SMA-J| Ultra short straight,

omnidirectional antenna

TX433-JW-5| Rubber rod| 433M| 2.0| 50| –| SMA-J| Fixed bending,
 | antenna|  |  |  |  |  | omnidirectional antenna
---|---|---|---|---|---|---|---
TX433-JWG-7| Rubber rod

antenna

| 433M| 2.5| 70| –| SMA-J| Fixed bending,

omnidirectional antenna

TX433-JK-11| Rubber rod

antenna

| 433M| 2.5| 110| –| SMA-J| Flexible rubber rod,

omnidirectional antenna

TX433-JK-20| Rubber rod

antenna

| 433M| 3.0| 200| –| SMA-J| Flexible rubber 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 antenna, low-loss
TX433-XPH-300| Suction cup

antenna

| 433M| 6.0| 965| 300| SMA-J| Small suction cup antenna with high gain

Revision History

CONTACT

• About us
  • Technical support: support@cdebyte.com.
  • Documents and RF Setting download link: https://www.ru-ebyte.com.
  • Web：https://www.ru-ebyte.com.
  • Address： Innovation Center D347, 4# XI-XIN Road, Chengdu, Sichuan, China
  • CopyriCopyright ©2012–2023, Chengdu Ebyte Electronic Technology Co.,Ltd
  • 400/900MHz 160mW TTL LoRa MESH Wireless Networking Module

References

• Китайские производители беспроводных модемов Lora, поставщики промышленных терминалов IoT

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