Ebyte E18 Series User manual

E18 V1.2 ZigBee Ad Hoc Module Chengdu Ebyte Electronic Technology Co., Ltd.
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E18 V1.2 Datasheet
( ZigBee Ad Hoc Module )
1. Module introduction……………..……………………………….....……………………………2
1.1 ZigBee introduction…………………………...……….....……..……….………………2
1.2 Feature………………….........………………………………......……………......……...2
1.3 Compatible products………………………..……........…………….…………………...4
1.4 Basic communication usage……………………………………………...………………4
2. Function introduction...…………………………………………………………………………..5
2.1 Pin diagram….........……………………………………………………………………...5
3. Quick start…................…………………………………………………………………………..6
3.1Network construction and comminication…….......……………...………………………6
4. User instruction………………………………...………………………………….…………....13
4.1 Networking part and notice……………………………………………….…………….13
4.2 Network structure………………………........………………………………………….14
5. About us…...........................……………………………………………………………………15

E18 V1.2 ZigBee Ad Hoc Module Chengdu Ebyte Electronic Technology Co., Ltd.
ALIBABA Store: www.cdebyte.en.alibaba.com Website：www.cdebyte.com/en
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1. Module introduction ZigBee
1.1 ZigBee introduction ZigBee
ZigBee technology is a two-way wireless communication technology that features short range, low complexity,
low power, low speed and low cost.
There are three types of logical devices in the ZigBee network: Coordinator, Router, and End-Device. The ZigBee
network consists of a Coordinator and multiple routers and End-Devices.
These devices own the following functions:
（1）Coordinator
As the first device in the network, the coordinator is responsible for starting the entire network. . The
coordinator selects a channel and a network ID (also known as the PAN ID, the Personal Area Network ID), and then
starts the entire network.
Coordinators can also be used to help establish bindings between security layer and application layer in the
network.
Note that the role of the coordinator mainly involves the network startup and configuration. Once these are
done, the coordinator works like a router (or disappears /go away). Due to the distribution characteristics of the
ZigBee network itself, the operation of the entire network is not dependent on the existence of the coordinator.
（2）Router
The main functions of the router: to allow other devices to join the network, multi-hop routing and to assist
communication of its own battery-powered son node end-devices.
Typically, the router is expected to remain active, so it must use the main power supply. However, when using
the tree group network mode, it allows the routing operate once at an interval of a certain cycle, so battery can be
used for power supply.
（3）End-Device
The end-device does not have a specific responsibility for maintaining the network structure, it can sleep or
wake up, so it can be a battery-powered device.
1.2 Feature ZigBee
No.
Feature
Description
1
Role switch
Users can switch freely between the coordinator, router and end device via UART
command.
2
Automatic
networking
Support power-on automatic networking. The coordinator automatically sets up
the network, the end device and the router automatically searches and joins the
network.
3
Network
self-healing
Automatically reconnect when losing network. When intermediate node in
network is lost, other networks automatically join or maintain the original
network. (Isolated nodes automatically join the original network, non-isolated
nodes maintain the original network.)
When the coordinator is lost and non-isolated nodes exist in the original
network, the coordinator can join the network again or coordinator of the
original network PAN_ID set by the same user join the original network.

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4
Ultra low power
consumption
The device can be set as low power mode in the end state. Sleep time of the
device can be changed according to the user's using time. The standby power
consumption in the low power mode is less than 2uA. In the father node data
storage time, all messages can be received within the time set by users.
5
Configuration for
data storage time
When device is in the coordinator and router state, the user can set their own
data storage time, and work with end device in sleep mode to save data for the
end device, and sent data to the end device when it wakes up.
Data saved is up to 3 data packets, if exceeded, it will automatically clear the first
data! After the data is saved, the data heap is automatically cleared.
6
Automatic
retransmission
In unicast mode, the device will automatically retransmit when failed to send to
next node, and the number of retransmission per message is three.
7
Automatic
routing
The module supports network routing. Router and coordinator have network
data routing function, users can conduct multi-hopping networking.
8
Support
encryption
protocol
The module uses AES 128 bit encryption function, can change the network
encryption and prevent monitoring. Users can change the network key by
themselves. Only devices with the same network key can start normal
networking communication.
9
Support UART
configuration
Module has built-in UART commands, the user can configure (view) the
parameters and functions of module via UART command .
10
Communication
for various types
of data
Support broadcasting, multicasting and unicasting in the entire network. In the
broadcast and unicast mode, it also supports several transmission methods,
please refer to <E18 v1.2 communication protocol> for the details.
11
Change channel
It supports change of 16 channels ranging from 11 to 26（2405~2480MHZ ）,
different channels have different frequency.
12
Change network
PAN_ID
Free switch of network PAN_ID. Users can define PAN_ID to join the
corresponding network by themselves or automatically select PAN-ID to join the
network.
13
Change UART
baud rate
Users can set baud rate by themselves which can be as high as 1M, it is 8 bits by
default without parity bit.
14
Search short
address
Users can find out corresponding short address according to the (unique and
fixed) MAC address of module that already joined network.
16
Gpio control
Local/remote gpio control function，there are 10 gpio for users to select.
17
Pwm control
Local/remote pwm control function ， there are 5 pwm channels for users to
select.
18
Adc control
Read local/remote adc，there are 7 adc channels for users to select.
19
Command format
switch
The module supports AT command and HEX command for users’ easy
configuration and switch. The physical location is P1.6.
20
Module restore
Users can restore the module via UART commands.
21
Onekey recovery
of baud rate
The module supports onekey recovery of baud rate when users forget the baud
rate. The baud rate is 115200(default), physical location is P1.7.
22
Recover factory
setting
Users recover the factory setting via UART commands.
Notes：see more in <E18 v1.2 communication protocol>

E18 V1.2 ZigBee Ad Hoc Module Chengdu Ebyte Electronic Technology Co., Ltd.
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1.3 Compatible products ZigBee
No.
Model
RF IC
Frequency
（Hz）
Air data
rate（bps）
Power
（dBm）
Antenna type
1
E18-MD0-PCB
CC2530
2.4G
250K
4
PCB
2
E18-MD0-IPX
CC2530
2.4G
250K
4
IPEX
3
E18-MS1-PCB
CC2530
2.4G
250K
4
PCB
4
E18-MS1- IPX
CC2530
2.4G
250K
4
IPEX
5
E18-MS1PA1-PCB
CC2530
2.4G
250K
20
PCB
6
E18-MS1PA-IPX
CC2530
2.4G
250K
20
IPEX
★ E18 modules are compatible with each other with different power when software debugging is completed ★
1.4 Basic communication usage Zigbee
No.
Using mode
Description
1
Broadcast
When joining the network, the user can broadcast according to the commands
in the whole network (which can be divided into three broadcast modes)
1, Broadcast Mode 1 - The message is broadcasted to all devices in the entire
network.
2, broadcast mode 2 - the message is broadcasted only to receiving devices
(except sleep mode).
3, broadcast mode 3 - the message is broadcasted to all full-functional devices
(router and coordinator).
2
Multicast
When joining the network, the user can multicast all the devices (not in sleep)
in the entire network .
3
Unicast
When joining the network, the user can independently communicate with the
devices in the network in a short address mode according to the commands
(which can be divided into three broadcast modes)
1, transparent transmission mode - (no carrying information)
2, short address mode - (carry information for the short address)
3, MAC address mode - (carry information for the MAC address)
Notes：see more in <E18 v1.2 communication protocol>

E18 V1.2 ZigBee Ad Hoc Module Chengdu Ebyte Electronic Technology Co., Ltd.
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2. Function description ZigBee
2.1 Pin diagram ZigBee
Peripheral function pin table
Pin No.
Function indication
Description (reuse function pin can only be defined as the
function rectified for the last time)
Input/Output
P0_0
GPIO0/ADC0
User controlled function pin GPIO0/ADC0
I/O
P0_1
GPIO1/ADC1
User controlled function pin GPIO1/ADC1
I/O
P0_2
GPIO2/ADC2/PWM0
User controlled function pin GPIO2/ADC2/PWM0
I/O
P0_3
GPIO3/ADC3/PWM1
User controlled function pin GPIO3/ADC3/PWM1
I/O
P0_4
GPIO4/ADC4/PWM2
User controlled function pin GPIO4/ADC4/PWM2
I/O
P0_5
GPIO5/ADC5/PWM3
User controlled function pin GPIO5/ADC5/PWM3
I/O

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P0_6
GPIO6/ADC6/PWM4
User controlled function pin GPIO6/ADC6/PWM4
I/O
P2_0
GPIO7
User controlled function pin GPIO7
I/O
P2_1
GPIO8
User controlled function pin GPIO8
I/O
P2_2
GPIO9
User controlled function pin GPIO9
I/O
P1_2
NWK_LED
To indicate module network joining state, low level
means that module joins network, high level means
no network.
O
P1_3
RUN_LED
To indicate module works normally, low level means
that module works normally, high level means module
does not work.
O
P1_6
AT_HEX_KEY
To switch AT command and HEX command, low level
means HEX command mode, high level means AT
command mode（default）.
I
P1_7
UART_BAUD_RESET
To reset baud rate, when users forget or do not know
the baud rate use this button to restore factory setting
（115200）（valid for falling edge）.
I
P1_4
UART0_RX
UART RX pin
I
P1_5
UART0_TX
UART TX pin
O
3.Quick start ZigBee
The ZigBee ad hoc network module is easy to use. In order to allow users to be quickly familiar with modules,
this section will guide users to achieve configuration and communication in various modes via a simple configuration.
The user can pull down the P1.6 pin and conduct the HEX instruction set. In order to facilitate observation of the
host computer , the experiment will use HEX command format, AT command users do not test in this test. (AT
command can not be used for the configuration of host computer. )
In addition, the user can use the external microcontroller (MCU) instead of test board directly to connect with
module for UART command communication to achieve secondary development.
3.1 Network construction and communication ZigBee
No.
Notes
1
【Construct network】：
①.Connect Zigbee ad hoc module via USB to UART converter.
② .Open host computer software “ Zigbee_Setting_V1.1 ” , select Com port and set baud rate as
115200(default), then open port;

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③.Click read parameter to read corresponding module parameter.
④.Select node type as coordinator, write in parameter. Wait the coordinator to start constructing
network and users can check module parameter.
Set network parameter：（when PAN ID is FFFF, it is automatic PAN ID）

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Read parameter when network is constructed：
⑤.Select another module, set it as the router or end device following the same steps (module is set as
end device when leave factory (default),no need to set again, in this experiment it is end device )。

E18 V1.2 ZigBee Ad Hoc Module Chengdu Ebyte Electronic Technology Co., Ltd.
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2
【Communication test】：
①.Click “fixed networking”of the coordinator and end device of the host computer. Corresponding
info. is available to be viewed.
Coordinator：
End device：

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②. For users’ convenience to observe, in this experiment it is HEX transmitting mode.
If the device address is unknown, please input corresponding mac address and click get network
address. The short address of coordinator is 0.
③.Input random content in these 3 modes, click start.
Transparent transmission：
From coordinator to end device：

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From end device to coordinator：
Network address：
From coordinator to end device：
From end device to coordinator:
MAC address：
From coordinator to end device：

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From end device to coordinator：
Multicast：
Broadcast ： （ broadcast only conduct Mode 1, the entire network conduct broadcast mode
experiment, other modes test by themselves ）
Data function transmission needs to reflect its own characteristics in the case of multi-node network,
the users can test by themselves！

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4. User instruction ZigBee
4.1 networking role and notice ZigBee
No.
Description
1
Module uses Zigbee ad hoc networking, consisting of one coordinator and random other
devices(routers and end-devices)
2
It has self-organization, self-routing and network multi-hopping function (By default the
network depth is 5, there are 20 son nodes and 6 son router nodes in total).
3
The father node device (coordinator and router) can save data for the end-devices in sleep.
The save time can be set by the user (by default it is 30 seconds, ranging from 0 to 120
seconds).
4
Only the end device has the sleep function, sleeping within 120S, the user can set by
themselves, the default 0 (with sleep mode off).
Note: The recommended sleep time must be less than the data storage time of father node ,
otherwise it will affect the data reception.
5
In network communication Short Address communication is used.
Note: The short address is randomly distributed when the device joins the network, the long
address of MacAddress is the only fixed one, if the short address is unknown, the network
Short Address can be found via corresponding commands according to the MacAddress ,
and point to point communication is conducted.
6
Coordinator is unique in the network, the short address is 0000.
7
If unicast address is FFFF，FFFD，FFFC，then it corresponds to three broadcast mode.
8
When PANID is FFFF, it means automatic distribution. Networking can not be realized if
PANID is different.
9
When network keys are not the same the network can not be joined. The module network
key of the module remains open, the user can not get the correct air data via software
packet capture .
10
All devices in the network have opened broadcast function. Multiple devices broadcasting
at the same time or a single device broadcasting at a higher frequency will lead to a serious
network congestion. Please try to avoid this situation.
11
When multicasting module does not need to join the group,but be directly multicasted to
any group according to communication usage guidance. After the multicast, the local group
number will not change due to different multicast number.
12
PWM function and sleep mode can not be used at the same time in network, please turn off
the sleep mode before turn on PWM function .
13
After sleep mode, it can be waked up via the serial port(UART).
Note: In the sleep state, the first frame of data waked up via UART is invalid.
Notes：see more in <E18 v1.2 communication protocol>

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4.2 Network structure ZigBee
The network structure of module is MESH network
MESH network topology network has a powerful function, the network can communicate via
"multi-level hopping"; the topology can also form a very complex network; network also has
self-organization, self-healing function.
Network structure diagram

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5. About us ZigBee
Chengdu Ebyte Electronic Technology Co., Ltd., a high-tech company focusing on application of
Internet of Things, owns a number of independently researched and developed products and obtains
unanimous approvals from customers. With a powerful R&D team, perfect after-sales system, our
company provides perfect solutions and technical assistance, shortens R&D period, reduces R&D cost
and provides a strong platform for brand new ideas about product R&D.
Our products have been widely applied in various fields, such as consumer electronics, industrial
control, healthcare, security alarm, field acquisition, smart home, expressway, property management,
water and electricity meter reading, power monitoring, etc.
【Website】：www.cdebyte.com/en 【Technical support】：[email protected]
【Address】: Innovation Center D347, 4#XI-XIN road, High-tech district (West), Chengdu, Sichuan, China