Low Power IoT UART to WIFI Module

Official Online Shop | Communication Expert of Industrial IOT
Low Power IoT UART to WIFI Module
Low Power IoT UART to WIFI Module
Click to enlarge
Price: $4.50
Availability: In Stock
Model: USR-C216
Average Rating: Not Rated

Available Options:

Antenna type:
Qty: Add to Cart
(This product has a minimum quantity of 5)
Buy via paypal Buy it now
include $25 shipping cost.


USR-C216 IoT WiFi module is used for data transparent transmission between UART and WiFi network. It can connect the UART devices to Internet with simple configuration. Easy to use, do not need drivers.


  • Web-based configuration and AT command configuration
  • Standard TCP/IP interface and versatile TCP and UDP operation modes
  • Usrlink networking: one click access to WiFi
  • User defined webpage
  • HTTPD Client: send data as HTTP format automatically
  • Works as AP, STA or AP+STA
  • 3.0~3.6V Power supply
  • Antenna: On board antenna or external antenna
  • Tiny size: 22 x 13.5x2.7mm





Input Voltage DC 3.0V~3.6V
Input Current AP: 74mA (average), 285mA (peak)
STA: 32mA (average), 196mA (peak)
Certificate CE, FCC, ROHS
Size 22.0mm x 13.5mm x 2.7mm
Operating Temp. -20 ~ 85°C
Storage Temp. -40 ~ 125°C, 5 ~ 95% RH(no condensation)
Interface TTL
Packing list USR-C216

Factory Setting:

1) Hardware reset: Pull down nReload Pin  for 3 seconds or more

2) Webpage reset: Reload Restart page.

3) Software reset: Enter AT command mode, use AT command AT+RELD.


  • WiFi remote control and monitoring, TCP/IP and WiFi coprocessor
  • WiFi remote control toy such as aircraft and cars
  • WiFi Internet radio, camera, digital photo frame
  • Medical instrument, data acquisition, handheld device
  • WiFi fatness testing machine, smart card terminal, Smart Home
  • Instrument, equipment parameter monitoring, wireless POS machine
  • Modern agriculture, military field and other wireless related secondary development applications
Wireless Parameters  
Wireless Standard 802.11 b/g/n
Transmit Power 802.11b: +18 +/-1dBm (@11Mbps)
802.11g: +17 +/-1dBm (@54Mbps)
802.11n: +15 +/-1dBm (@HT20, MCS7)
Receive Sensitivity 802.11b: -85 dBm (@11Mbps, CCK)
802.11g: -70 dBm (@54Mbps, OFDM)
802.11n: -68 dBm (@HT20, MCS7)
Antenna External: Antenna welding plate
Internal: on-board antenna
Hardware Parameters  
Data Interface UART
Operating Voltage DC 3.0~3.6V
Operating Current AP: 74mA (average), 285mA (peak)
STA: 32mA (average), 196mA (peak)
Operating Temp. -20~ 85°C
Storage Temp. -40~ 125°C
Size 22.0mm x 13.5mm x 2.7mm
External Interface SIP
Software Parameters  
Wireless Network Type AP, STA, AP+STA
Security Mechanism WPA-PSK/WPA2-PSK
Encryption Type TKIP, AES, TKIP/AES
Network Protocol IPv4, TCP/UDP
User Configuration AT+command
Webpage setting


Write Review
Your Name:

Your Review: Note: HTML is not translated!

Rating: Bad            Good

Enter the code in the box below: