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WBR1 Datasheet

1. Product Overview

WBR1 is a low-power embedded Wi-Fi and Bluetooth module that Tuya has developed. It

consists of a highly integrated RF chip (RTL8720CF) with an embedded Wi-Fi network

protocol stack and robust library functions. WBR1 also contains a low-power KM4

multipoint control unit (MCU), WLAN MAC, 1T1R WLAN, 256 KB static random-access

memory (SRAM), and 2 MB flash memory, and has extensive peripherals.

WBR1 is an RTOS platform that integrates all function libraries of the Wi-Fi MAC and

TCP/IP protocols. You can develop embedded Wi-Fi products as required.

Figure 1-1 shows the WBR1 architecture.

Figure 1-1 WBR1 architecture

Tuya WBR1 Wi-Fi and Bluetooth

Version: 1.0.0

Date: 2019-10-21

No.: 0000000001

Product

Manual

Global Intelligent Platform

Summary of content (21 pages)

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Global Intelligent Platform Product Manual WBR1 Datasheet Tuya WBR1 Wi-Fi and Bluetooth Version: 1.0.0 Date: 2019-10-21 No.: 0000000001 1. Product Overview WBR1 is a low-power embedded Wi-Fi and Bluetooth module that Tuya has developed. It consists of a highly integrated RF chip (RTL8720CF) with an embedded Wi-Fi network protocol stack and robust library functions.
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WBR1 Datasheet 1.1 Features  Embedded low-power KM4 MCU, which can also function as an application processor  Clock rate: 100 MHz  Working voltage: 3.0 V to 3.6 V  Peripherals: seven GPIOs and two universal asynchronous receivers/transmitters (UARTs)  Wi-Fi connectivity  802.11b/g/n20  Channels 1 to 14 at 2.4 GHz  Compatible with Bluetooth low energy (BLE) 4.2 (Up to +9dBm EIPR output power)  WPA and WPA2 security modes  Up to +20 dBm EIPR output power in 802.
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WBR1 Datasheet Change History No. 1 Date 2019-10-21 Change Description This is the first release. 3 Version After Change 1.0.
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WBR1 Datasheet Contents 1. Product Overview.........................................................................................................................1 1.1 Features.............................................................................................................................. 2 1.2 Applications.........................................................................................................................2 2 Module Interfaces..............................................
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WBR1 Datasheet Tables Table 2-1 WBR1 interface pins...................................................................................................... 6 Table 3-1 Absolute electrical parameters..................................................................................... 8 Table 3-2 Normal electrical conditions..........................................................................................8 Table 3-3 Power consumption during constant transmission.........................................
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WBR1 Datasheet 2 Module Interfaces 2.1 Dimensions and Footprint WBR1 has two rows of 16 pins (2 x 8) with a 2 mm pin spacing. The WBR1 dimensions (H x W x D) are 2.9±0.15 mm x 18±0.35 mm x 23.5±0.35 mm. Figure 2-1 shows the WBR1 front and rear views. Figure 2-1 WBR1 front and rear views 2.2 Interface Pin Definition Table 2-1 WBR1 interface pins Pin No. Symbol I/O Type Function 1 Vin P UART_TX power conversion pin (5 V or 3.
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WBR1 Datasheet Pin No. Symbol I/O Type Function 4 3V3 P Power supply pin (3.
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WBR1 Datasheet 3 Electrical Parameters 3.1 Absolute Electrical Parameters Table 3-1 Absolute electrical parameters Parameter Description Minimum Value Maximum Value Unit Ts Storage temperature –40 105 °C VDD Power supply voltage –0.3 3.6 V Static electricity voltage (human body model) Tamb = 25°C N/A 2 kV Static electricity voltage (machine model) Tamb = 25°C N/A 0.5 kV 3.
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WBR1 Datasheet 3.3 RF Current Consumption Table 3-3 Power consumption during constant transmission Symbol Mode Typical Value Power Peak Value Unit IRF 802.11b 17 dBm 217 268 mA IRF 11 Mbit/s 18 dBm 231 283 mA IRF 802.11g 15 dBm 159 188 mA IRF 54 Mbit/s 17.5 dBm 177 213 mA IRF 802.11n BW20 13 dBm 145 167 mA IRF MCS7 16.5 dBm 165 193 mA Table 3-4 Power consumption during constant receiving Symbol IRF Mode Typical Value 802.
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WBR1 Datasheet Working Mode Working Status (Ta = 25°C) Typical Value Peak Value Unit Connected and idle The module is connected to the network, and the Wi-Fi indicator is steady on. 64 314 mA Connected and operating The module is connected to the network, and the Wi-Fi indicator is steady on. 66 305 mA Disconnected The module is disconnected from the network, and the Wi-Fi indicator is steady off. 66 309 mA 4 RF Features 4.
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WBR1 Datasheet 4.2 TX Performance Table 4-2 Performance during constant transmission Parameter Minimum Value Typical Value Maximum Value Unit Average RF output power, 802.11b CCK mode 1 Mbit/s N/A 17.5 N/A dBm Average RF output power, 802.11g OFDM mode 54 Mbit/s N/A 14.5 N/A dBm Average RF output power, 802.11n OFDM mode MCS7 N/A 13.5 N/A dBm –20 N/A +20 ppm EVM under 802.11b CCK, 11 Mbit/s, 17.5 dBm –10 dB EVM under 802.11g OFDM, 54 Mbit/s, 14.5 dBm –29 dB EVM under 802.
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WBR1 Datasheet 5 Antenna Information 5.1 Antenna Type WBR1 uses an onboard PCB antenna with a gain of 2.5 dBi. 5.2 Antenna Interference Reduction To ensure optimal Wi-Fi performance when the Wi-Fi module uses an onboard PCB antenna, it is recommended that the antenna be at least 15 mm away from other metal parts. 6 Packaging Information and Production Instructions 6.1 Mechanical Dimensions The PCB dimensions (H x W x D) are 0.8±0.1 mm x 18±0.35 mm x 23.5±0.35 mm.
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WBR1 Datasheet Figure 6-1 WBR1 mechanical dimensions Figure 6-2 Side view Note: The default dimensional tolerance is ±0.35 mm. If a customer has other requirements, clearly specify them in the datasheet after communication.
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WBR1 Datasheet 6.
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WBR1 Datasheet Figure 6-4 Layout of the PCB to which WBR1 applies 6.3 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 firmware is burned. If not, vacuum pack the module again. Bake the module before mounting it onto the PCB. (1) SMT placement equipment i. Reflow soldering machine ii. Automated optical inspection (AOI) equipment iii.
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WBR1 Datasheet iii. 2. Anti-static heat-resistant gloves Storage conditions for a delivered module are as follows: (1) The moisture-proof bag is placed in an environment where the temperature is below 30°C and the relative humidity is lower than 70%. (2) The shelf life of a dry-packaged product is six months from the date when the product is packaged and sealed. (3) The package contains a humidity indicator card (HIC). Figure 6-5 HIC for WBR1 3.
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WBR1 Datasheet or solder skips may occur. Tuya is not liable for such problems and consequences. 6. Before SMT placement, take electrostatic discharge (ESD) protective measures. 7. To reduce the reflow defect rate, draw 10% of the products for visual inspection and AOI before first SMT placement to determine a proper oven temperature and component placement method. Draw 5 to 10 modules every hour from subsequent batches for visual inspection and AOI. 6.
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WBR1 Datasheet 6.
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WBR1 Datasheet 7 MOQ and Packing Information 19
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WBR1 Datasheet 8 Appendix: Statement Federal Communications Commission (FCC) Declaration of Conformity FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate this equipment. This device complies with Part 15 of the FCC Rules.
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WBR1 Datasheet The host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. The final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed.