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WBR3N User manual
1 Product Overview
WBR3N is a low-power embedded WiFi+BT module that Tuya has developed. It consists of a
highly integrated wireless RF chip (RTL8720CS), a few peripherals, an
embedded WiFi network protocol stack, the BT network protocol, and varied library
functions. WBR3N has an embedded low-power 32-bit CPU, 512 KB static randomaccess memory
(SRAM), 4 MB flash memory, and rich peripherals. WBR3N is an
RTOS platform that integrates all function libraries of the WiFi MAC and TCP/IP protocols. You can
develop embedded WiFi products as required.
1.1 Features
1. Embedded low-power 32-bit CPU, which can also function as an application
processor
2. The maxium clock rate: 200 MHz
3. Working voltage: 3.0 to 3.6 V
4. Peripherals: 8 GPIOs, 1 universal asynchronous receiver/transmitter (UART),
and 1 analog to digital converter (ADC)
5. WiFi connectivity
• 802.11b/g/n 1x1 2.4 G
• Channels 1 to 14 at 2.4 Ghz
• Support WPA and WPA2 security modes
• Up to +17.5 dBm output power in 802.11b mode
• Support STA/AP/STA+AP working modes
• Support SmartConfig and AP network configuration manners for Android
and iOS devices
• Onboard PCB antenna with a gain of 2.5 dBi at 2.4 G
• Working temperature: -20 to 85℃
6. BT/BLE connectivity
• Support BLE V5.0
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Summary of Contents for TUYA WBR3N
- Page 1 WBR3N User manual 1 Product Overview WBR3N is a low-power embedded WiFi+BT module that Tuya has developed. It consists of a highly integrated wireless RF chip (RTL8720CS), a few peripherals, an embedded WiFi network protocol stack, the BT network protocol, and varied library functions.
- Page 2 • Up to the output power of +9 dbm The default output power is 7dB. • PCB antenna with a gain of 2.5 dBi at 2.4 G shared with WiFi • Working temperature: -20 to 85℃ 1.2 Applications • Intelligent building •...
- Page 3 2.2 Normal Working Conditions 4 RF Parameters 4.1 Basic RF Features 5 Antenna Information 5.1 Antenna Type...
- Page 4 The WBR3N dimensions are 16mm (W)×24mm (L) ×3.0mm (H) 6.2 Production Instructions 1. Use an SMT placement machine to mount the stamp hole module that Tuya produces onto the PCB within 24 hours after the module is unpacked and the fifirmware is burned.If not, vacuum pack the module again.
- Page 5 17 / 237 PACKAGING INFORMATION AND PRODUCTION INSTRUCTIONS • b) Automated optical inspection (AOI) equipment • c) Nozzle with a 6 mm to 8 mm diameter B. Baking equipment - a) Cabinet oven - b) Anti-static heat-resistant trays - c) Anti-static heat-resistant gloves 2.
- Page 6 3 months. Electroless nickel immersion gold (ENIG) is used for the PCBs. If the solder pads are exposed to the air for more than 3 months, they will be oxidized severely and dry joints or solder skips may occur. Tuya is not liable for such problems and consequences.
- Page 7 this device must accept any interference received, including interference that may cause undesired operation. Note: This equipment has been tested and found to comply the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.These limits are designed to provide reasonable protection against harmful interference in a residential installation.
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Page 8: Appendix-Statement
This product must be installed and operated with a minimum distance of 20 cm between the radiator and user body. This device have got a FCC ID: 2ANDL-WBR3N. The final end product must be labeled in area with the following: “Contains Transmitter Module FCC ID: 2ANDL-WBR3N”... - Page 9 with EU directive for waste electrical and electronic equipment (WEEE-2012/19/EU). Instead, it should be disposed of by returning it to the point of sale, or to a municipal recycling collection point. The device could be used with a separation distance of 20cm to the human body。...
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