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USR-C216
User Manual
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Usr USR-C216 User Manual

USR-C216 User Manual Technical Support: h.usriot.com

USR-C216 User Manual

File Version: V1.0.0
Jinan USR IOT Technology Limited
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USR-C216 User Manual Technical Support: h.usriot.com
Contents
USR-C216 User Manual..........................................................................................................................................1
1. Get Start...............................................................................................................................................................5
2. Product Overview................................................................................................................................................7
3. Product Function...............................................................................................................................................12
3.1. Wireless Distribution Network........................................................................................................12
3.1.1. Work as AP................................................................................................................................ 12
3.1.2. Work as STA..............................................................................................................................13
3.1.3. Work as AP+STA...................................................................................................................... 13
3.1.4. Encryption Mode...................................................................................................................... 14
3.2. Work Mode........................................................................................................................................14
3.2.1. Transparent Transmission Mode.............................................................................................14
3.2.2. AT Commands Mode................................................................................................................16
3.2.3. HTTPD Client Mode................................................................................................................ 16
3.3. UART Parameters.............................................................................................................................18
3.3.1. UART Parameters Intro...........................................................................................................18
3.3.2. Similar RFC2217.......................................................................................................................18
3.4. Extra Function.................................................................................................................................. 19
3.4.1. Search in LAN...........................................................................................................................19
3.4.2. TCP/UDP Client Register Function........................................................................................21
3.4.3. USR-Link................................................................................................................................... 21
3.4.4. Heartbeat Package....................................................................................................................22
3.4.5. Customize Webpage..................................................................................................................23
3.4.6. Wi-Fi Connection Exception Handling...................................................................................23
4. Setting Method.................................................................................................................................................. 23
4.1. Webpage Setting................................................................................................................................23
4.1.1. Open The Webpage...................................................................................................................24
4.1.2. Wi-Fi Setting..............................................................................................................................25
4.1.3. Transmission Setting.................................................................................................................26
4.1.4. Extra Function.......................................................................................................................... 27
4.1.5. Firmware Upgrade....................................................................................................................28
4.1.6. Standby Upgrade Page.............................................................................................................28
4.2. AT Command Setting....................................................................................................................... 29
4.2.1. Error Table................................................................................................................................ 30
4.3. AT Commands...................................................................................................................................30
6.Contact Us.............................................................................................................................................................. 32
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USR-C216 User Manual Technical Support: h.usriot.com
7.Disclaimer..............................................................................................................................................................32
8.Update History......................................................................................................................................................32
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USR-C216 User Manual Technical Support: h.usriot.com
Feature
Support WiFi@2.4 GHz 802.11b/g/n wireless standards
Support WEP/WPA/WPA2 security mode
Support AP, STA, AP+STA working mode
Completely integrated serial-to-wireless TCP/UDP transmission function, multiple serial rate
selection
Local area network search and wireless parameter setting function
Support TCP/UDP client registration packet mechanism
Supporting simple Config/ usrlink fast networking configuration
Support similar RFC2217 automatic baud rate adaptation function
Supporting simple AT commands
Support Httpd client function
3.3V single power supply
Selection of built-in antenna and external antenna (antenna pad)
Ultra-small size: 22.0mm x 13.5mm x 2.7mm, SMT package
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1. Get Start

This chapter is a quick introduction to the USR-C216 product. New users are advised to read this chapter
carefully and follow instructions to get a systematic understanding of the product. Users can skip this chapter if
they are familiar with such products. Refer to the subsequent chapters for specific details and instructions.

1.1. Hardware Connection

We connect the serial port and network port of the USR-C216 to PC, if PC has no serial port, you can use USB to
232cable. Hardware connection:
Figure 1 hardware connection
You just need connect RS232 cable and power to C216 as picture shows.

1.2. Net Connection

Search WIFI on PC, connect the WIFI named USR-C216
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Name
Parameters
SSID
USR-C216
Encryption mode
Open, none
Serial port
115200, 8, 1, none, nfc
Network
TCPS, 8899, 10.10.100.254
IP
10.10.100.254
Figure 2 search SSID
Set the PC DHCP mode, USR-C216 support DHCP server mode, this function is open by default.

1.3. Data Transmission Test

The default parameters:
Steps :
1\open”USR-TCP232-Test.exe”, COM11 represents the serial number of C216,set the baud rate 115200,then open the
serial port;
2\choose TCP Client mode, IP:10.10.100.254,the server port is 8899,then click connect.
The data from serial port to net is: serial port of PC->serial port of C216->C216->network port(or wifi) of C216->PC;
The data from net to serial port is: PC-> Ethernet (or wifi) of C216->C216->serial port of C216->serial port of PC
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Figure 3 data transmission test

2.Product Overview

2.1. Product Introduction

The hardware of USR-C216 is integrated into MAC, basic frequency chip and RF transceiver unit. Built-in low power
operation mechanism can effectively realize the low power operation of the module; Support Wi-Fi protocol and
TCP/IP protocol, users only need a simple configuration, to achieve the networking function of UART devices. Module
size is small, easy to solder in the customer's hardware circuit. And the module can choose the application of internal or
external antenna, convenient for customers to choose multiple.
The specific size of the module: 22.0mm x 13.5mm x 2.7mm, SMT package
The basic functions of the module are described as follows:
Module to achieve serial data to network data transmission function: including Socket transparent transmission, Httpd
Client transparent transmission.
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2.2. Electrical Parameters

Item
Index
Wireless parameters
Wireless standard
802.11 b/g/n
Transmitting power
802.11b: +19dBm(Max.@11Mbps，CCK)
802.11g: +18dBm(Max.@54Mbps，OFDM)
802.11n: +16dBm(Max.@HT20，MCS7)
Receiving sensitivity
802.11b: -85 dBm(@11Mbps，CCK)
802.11g: -70 dBm(@54Mbps，OFDM)
802.11n: -68 dBm(@HT20，MCS7)
Antenna
C216-a: antenna pad
C216-b:board-mounted ceramic antenna
Hardware parameters
Data interface
UART Working voltage
3.0~3.6V
Working current
AP: average:74mA max:285mA STA: average:32mA max:196mA (work with 3.3V power supply)
Working temperature
-20℃-85
℃
Storage temperature
-40℃-125℃
Working humidity
5~95%RH(no condensation)
Storage humidity
5~95%RH(no condensation)
Size
103*105*25mm（L*W*H
）
Encapsulation
SMT
Software parameters
Wireless network type
STA/AP/STA+AP mode
Security mechanism
WEP/WPA-PSK/WPA2-PSK
Encryption type
TKIP/AES
Network protocol
IPV4, TCP/UDP
Software function
DHCP/static IP
support
DNS
support
Web server
support
Socket
TCP Server，TCP Client，UDP Server， UDP Client
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Figure 4 basic function
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Httpd client
support
Similar RFC2217
support
Register packet
support
Setup method
AT+ command, webpage
min
suggest
max
unit
Voltage
3.0
3.3
3.6
V
Voltage ripple
--200
mV
Current
350
500
-
mA
min
average
max
unit
STA mode without AP connection
-50114
mA
STA mode connect to AP but no
data transmission
-30102
mA
STA mode connect to AP with data
transmission(10 K/s)
-67160
mA
AP mode connect to STA but no
data transmission
-69243
mA
AP mode connect to STA with data
transmission(10K/s)
-74230
mA

2.3. Power Supply and Power Consumption

2.4. Appearance Size

Unit mm
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Pin
Name
Signal type
Intro
1
GPIO1
NC
NC
2
GPIO2
NC
NC
3
GPIO3
I/O
GPIO, do not support
4
GPIO4
I/O
GPIO, do not support
5
UART0_ TX
O
TX of UART
6
UART0_ RX
I
RX of UART
7
UART0_ CTS
I
CTS of UART
Figure 5 schematic diagram of interface
Figure 6 pin of C216
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