EBYTE E70-433NW30S 433MHz 1W Star Network SMD Wireless Module User Manual

EBYTE E70-433NW30S 433MHz 1W Star Network SMD Wireless Module User Manual

E70-433NW30S User Manual

433MHz 1W Star Network SMD Wireless Module

Overview

Introduction

E70-433NW30S is the star network module, operating at 433MHz, based on originally imported TI CC1310 and 15.4-Stack protocol, with coordinator and terminal as a whole. The module features with long range and high-speed transmission modes. Maximum 200 nodes can send data to one coordinator. Use industry-standard AT commands for operating configuration, which greatly simplifies user operations. With stable batch production, the module is suitable for various wireless communication network applications.

E70-433NW30S is the first 433MHz wireless module which meets IEEE 802.15.4 in China and solves a series of problems caused by the traditional 433MHz module. Users will no longer spend more effort to deal with complex network protocols, which greatly reduces the difficulty of customer development and shortens the user’s development cycle. The protocol guarantees the stability and packet rate of the entire wireless communication system.
E70-433NW30S strictly follows design standards of FCC, CE, CCC and meets various RF certification requirements for exporting.

Features

• Communication distance tested is up to 6.5km
• Maximum transmission power of 1W, software multi-level adjustable
• Support the global license-free ISM 433MHz band
• Support air date rate of 5kbps50kbps Support CSMA/CA, Carrier multi – channel interception technology which can avoid collision effectively
• Maximum 200 nodes, no need to deal with complicated protocol.
• Adopting AES128 data encryption, Ensure the reliability of data packets.
• Supports DSSS technology, like LoRa, better than GFSK.
• Low power consumption for battery supplied applications
• Can achieve up to 115200bps continuous frame unlimited-packet length transmission
• Support 3.3V~5.2V power supply, power supply over 3.3V can guarantee the best performance
• Industrial grade standard design, support -40 ~ 85 °C for working over a long time
• IPEX access point, stamp hole is optional, facilitate user secondary development, facilitate integration.

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
• Advanced Meter Reading Architecture(AMI)
• Automotive industry applications.

Specification and parameter

Limit parameter

Operating parameter

Size and pin definition

Connect to MCU

Firmware Transmitting mode

Transparent transmission

Short address transmission

Long address transmission

Device status

AUX description

It can indicate whether there are data that are yet to send 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.

LINK description

• The LINK pin indicates the current network status, after the node is connected to the network, the current pin is pulled low. The external device can query the device network status through the pin level. In the coordinator mode, the pin indicates if the module establishes the network normally.

ACK description

• The ACK pin is used to indicate the status of the last user’s data transmission. Before transmitting, the pin is pulled low. After the transmission is successful, the pin is pulled high. The user can use this pin state to judge if the data has arrived successfully. This pin function cannot indicate the coordinator to send broadcast message.
• Note: In 802.15.4 protocol, the device will use the CSMA/MA technology to access the channel before sending data. When the receiving device receives the data, the returned ACK does not have this mechanism. This means that even if the receiving device can receive data in extreme conditions, sending device ACK pin indicates that the last data transmission failed.

Operating mode

Coordinator mode

If the user configures the operating mode 4,M0=0,M1=0or the user configures the operating mode as 0, the module works in the coordinator mode. In the coordinator mode, the coordinator can set up the network, coordinator is the central node of the network, there must be a coordinator in the network.

The coordinator configurable data input mode is:

Broadcast transmission. When configured to broadcast, all non-dormant devices on the entire network will receive data. The ACK pin indicates transmission successfully all the time.

Short address transmission, when configured to short address transmission, the user must specify the short address before sending data.

Long address transmission. When configured to long address transmission, the user must specify the long address before sending data.

Normal node

If the user configures the operating mode 4,M0=0,M1=1or the user configures the operating mode as 1, the module works in the normal node mode. In the normal node mode, the data can be received and sent in real time. It is suitable for application with low power consumption but high real-time requirement.

Dormant node

If the user configures the operating mode as 4, M0=1,M1=0, or the user configures the operating mode as 2, the module works in the dormant node mode, the device request if there is data transmitted by coordinator according to the user-configured sleep period , The non-broadcast data sent by the coordinator will be temporarily stored inside the coordinator. The device is in low power consumption during the sleep period. If the sleep node wants to send data actively, the user should send no more than two bytes to wake up the device. After the byte data is used to wake up the device and the wake-up byte is sent, the user needs to wait for more than 100ms to send the real data. After the wake-up byte is sent, the user needs to wait for 100ms to send the real data and the wake-up data will be discarded. After the device was waken up, the module will open the serial port, receiving AT command, if more than 2 seconds, there is no data input, the module will close serial port and go to sleep.The sleep node is suitable for applications where the user requires high power consumption but does not require high real-time data.

Configuration mode

When M0=1,M1=1,the device will switch to configuration mode. In the this mode, the serial port parameters are: 115200, 8N1, and the average operating current is 2uA. In this mode, the module cannot send and receive data. When the external AT instruction is configured, needs the serial port to send no more than two bytes data to wake up the device .After the wake-up byte is sent, the user needs to wait for 100ms to send the real data and the wake-up data will be discarded. After the device was waken up, the module will open the serial port, receiving AT command, if more than 2 seconds, there is no data input, the module will close serial port and go to sleep. The next AT command requires the user to resend the wake-up byte.

Mode switching

Quick start

Communication between normal node and coordinator

Coordinator configuration

Open the serial port assistant, select the serial port corresponding to the device, and set the serial port parameters
(default is 115200, 8N1)

Enter “+++” without line breaks to enter the AT command mode. When receiving “Enter AT Mode”, the AT mode is
successfully entered. As shown in Figure 5-1:

Enter “AT+HELP” with line breaks to see all instructions. As shown in Figure 1:

Then enter “AT+WMCFG=0” with line breaks to configure the device as the coordinator mode, as shown in Figure 2:

Then enter “AT+RSTART” to restart the device with a line break. The coordinator configuration is complete. As shown in Figure 3:

Figure 3

Normal node configuration

Open the serial port assistant and select the serial port corresponding to the device. Set the baud rate to 115200, the data bit to 8 bits, the parity bit to none, the stop bit to 1 bit, and the flow control is disabled, open the serial port.

Enter “+++” without line breaks to enter the AT command mode. When receiving “Enter AT Mode”, the AT mode is successfully entered.

Enter “AT+HELP” with line breaks to see all instructions. As shown in Figure 4:

Then enter “AT+WMCFG=1” with line breaks to configure the device as the coordinator mode, as shown in Figure 5:

Then enter “AT+RSTART” to restart the device with a line break. The coordinator configuration is complete. As shown in Figure 5-6:

Network transmission data transmission

When the configuration is complete, the coordinator restarts and the DIO11 pin is asserted low, indicating that the coordinator has started and is running. After an normal node device starts up, it will have a network access time of 10 to 20 seconds. When the network access is completed, the DIO11 pin will be set to low level, indicating that the network access is successful.

After waiting for the device to access the network successfully, the coordinator enters to AT mode, enters the command “AT+DINFO=ALLNODE” with a newline character, the coordinator will return the short address and long address of all the nodes that have already entered the network and recorded. As shown in Figure 5-7:

At this time, use “AT+EXIT” to exit the AT command mode with a newline character, and reclaim “Exit AT Mode” to exit AT mode. Next can transfer data, as shown in Figure 8:

The coordinator and node devices can communicate with each other normally.

AT Command

When the serial port enters AT mode, it needs to open the serial port assistant, set the serial port (default parameter) baud rate 115200, data bit 8 bit, stop bit 1 bit, open the serial port, input “+++” without carriage return. All parameter settings will reply “rn+OKrn”.

Hardware design

• It is recommended to use a DC stabilized power supply. The power supply ripple factor is as small as possible, and the module needs to 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 it is within the recommended voltage otherwise when it exceeds the maximum value the module will be permanently damaged
• Please check the stability of the power supply, the voltage can not be fluctuated frequently
• When designing the power supply circuit for the module, it is often recommended to reserve more than 30% of the margin, so the whole machine is beneficial for long-term stable operation.
• The module should be as far away as possible from the power supply, transformers, high-frequency wiring and other parts with large electromagnetic interference.
• High-frequency digital routing, high-frequency analog routing, and power routing must be avoided under the module. If it is necessary to pass through the module, assume that the module is soldered to the Top Layer, and the copper is spread on the Top Layer of the module contact part(well grounded), it must be close to the digital part of the module and routed in the Bottom Layer
• Assuming the module is soldered or placed over the Top Layer, it is wrong to randomly route over the Bottom Layer or other layers, which will affect the module’s spurs and receiving sensitivity to varying degrees
• It is assumed that there are devices with large electromagnetic interference around the module that will greatly affect the performance. It is recommended to keep them away from the module according to the strength of the interference. If necessary, appropriate isolation and shielding can be done
• Assume that there are traces with large electromagnetic interference (high-frequency digital, high-frequency analog, power traces) around the module that will greatly affect the performance of the module. It is recommended to stay away from the module according to the strength of the interference. If necessary, appropriate isolation and shielding can be done.
• If the communication line uses a 5V level, a 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 such as TTL protocol at 2.4GHz , for example: USB3.0
• The mounting structure of antenna has a great influence on the performance of the module. It is necessary to ensure that the antenna is exposed, preferably vertically upward. When the module is mounted inside the case, use a good antenna extension cable to extend the antenna to the outside
• The antenna must not be installed inside the metal case, which will cause the transmission distance to be greatly weakened.

FAQ

Communication range is too short

• The communication distance will be affected when obstacle exists.
• Data lose rate will be affected by temperature, humidity and co-channel interference.
• The ground will absorb and reflect wireless radio wave, so the performance will be poor when testing near ground.
• Sea water has great ability in absorbing wireless radio wave, so performance will be poor when testing near the sea.
• The signal will be affected when the antenna is near metal object or put in a metal case.
• Power register was set incorrectly, air data rate is set as too high (the higher the air data rate, the shorter the distance).
• The power supply low voltage under room temperature is lower than 2.5V, the lower the voltage, the lower the transmitting power.
• Due to antenna quality or poor matching between antenna and module.

Module is easy to damage

• Please check the power supply source, ensure it is 2.0V~3.6V, voltage higher than 3.6V will damage the module.
• Please check the stability of power source, the voltage cannot fluctuate too much.
• Please make sure antistatic measure are taken when installing and using, high frequency devices have electrostatic susceptibility.
• Please ensure the humidity is within limited range, some parts are sensitive to humidity.
• Please avoid using modules under too high or too low temperature.

BER(Bit Error Rate) is high

• There are co-channel signal interference nearby, please be away from interference sources or modify frequency and channel to avoid interference;
• Poor power supply may cause messy code. Make sure that the power supply is reliable.
• The extension line and feeder quality are poor or too long, so the bit error rate is high;

Production guidance

Reflow Soldering Temperature

Reflow Soldering Curve

E70 Series

Antenna recommendation

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.

Package for batch order

Revision history

About us

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References

• E70-433NW14S 星型组网模块-亿佰特无线通信模块
• E70-433NW30S 星型组网模块-亿佰特无线通信模块
• China LoRa/WiFi/Bluetooth/ZigBee wireless modules Manufacturers, industrial IoT terminals suppliers
• LoRa/ZigBee/WiFi/蓝牙模块_串口服务器_数传电台_遥控开关_4G DTU-成都亿佰特电子科技有限公司官网

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