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WBR1D Datasheet

1 Product Overview

WBR1D is a low-power embedded Wi-Fi and Bluetooth module that Tuya has developed.

It consists of a highly integrated RF chip (RTL8720DN) and several peripheral

components, with an embedded Wi-Fi network protocol stack, Bluetooth network protocol,

and robust library functions. WBR1D is embedded with a low-power 32-bit CPU, 512 KB

static random-access memory (SRAM), and 4 MB flash memory, and has extensive

peripherals.

WBR1D 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.

1.1 Features



Embedded low-power 32-bit CPU, which can also function as an application

processor

⚫

Clock rates: 80 MHz and 160 MHz



Working voltage: 2.8 V to 3.6 V



Peripherals: six GPIOs, two universal asynchronous receivers/transmitters (UARTs),

and one analog-to-digital converter (ADC)



Wi-Fi connectivity

⚫

802.11a/b/g/n 1x1, 2.4 GHz and 5 GHz capable

⚫

Channels 1 to 14 at 2.4 GHz and channels 36 to 177 at 5 GHz

⚫

WPA and WPA2 security modes

⚫

STA, AP, and STA+AP working modes

Global Intelligent Platform

Product

Manual

Tuya WBR1D Wi-Fi Module

Version: 1.0.0

Date: 2019-10-10

No.: 0000000001

Summary of content (24 pages)

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Global Intelligent Platform WBR1D Datasheet Tuya WBR1D Wi-Fi Module Product Manual Version: 1.0.0 Date: 2019-10-10 No.: 0000000001 1 Product Overview WBR1D is a low-power embedded Wi-Fi and Bluetooth module that Tuya has developed. It consists of a highly integrated RF chip (RTL8720DN) and several peripheral components, with an embedded Wi-Fi network protocol stack, Bluetooth network protocol, and robust library functions.
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⚫ Smart and AP network configuration modes for Android and iOS devices ⚫ Onboard PCB antenna with a gain of 2 dBi at 2.4 GHz and 2.6 dBi at 5 GHz ⚫ Working temperature: –20°C to +85°C  Bluetooth connectivity ⚫ Support Bluetooth （V5.
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WBR1D Datasheet 1.
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WBR1D Datasheet Change History No. 1 Date 2019-10-10 Change Description This is the first release. 3 Version After Change 1.0.
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WBR1D Datasheet Contents 1 Product Overview ......................................................................................................... 1 1.1 Applications..................................................................................................... 2 2 WBR1D Label ............................................................................................................... 7 3 Module Interfaces .....................................................................................
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WBR1D Datasheet Tables Table 3-1 WBR1D interface pins.......................................................................................... 9 Table 3-2 WBR1D test pins................................................................................................ 10 Table 4-1 Absolute electrical parameters........................................................................... 11 Table 4-2 Normal electrical conditions ...............................................................................
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WBR1D Datasheet 2 WBR1D Label 6
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WBR1D Datasheet 3 Module Interfaces 3.1 Dimensions and Footprint WBR1D has two rows of pins with a 2 mm pin spacing. The WBR1D dimensions (H x W x D) are 3.5 mm x 18 mm x 23.5 mm. Figure 3-1 shows the WBR1D front and rear views. Figure 3-1 WBR1D front and rear views Note: The default dimensional tolerance is ±0.3 mm, and the tolerance for some measurements is ±0.1 mm. The PCB thickness is 1.0±0.1 mm. 3.
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WBR1D Datasheet Table 3-1 WBR1D interface pins Pin No. Symbol I/O Type Function 1 VCC P UART1 power supply pin 2 U1TX I/O UART1_TXD (user-side serial interface) 3 U1RX I/O UART1_RXD (user-side serial interface) 4 3V3 P Power supply pin (3.
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WBR1D Datasheet 3.3 Test Pin Definition Table 3-2 WBR1D test pins Pin No. Symbol N/A TEST I/O Type Input Function Used for the module production test Note: Test pins are not recommended.
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WBR1D Datasheet 4 Electrical Parameters 4.1 Absolute Electrical Parameters Table 4-1 Absolute electrical parameters Parameter Description Minimum Value Maximum Value Unit Ts Storage temperature –20 85 °C VCC 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 4.
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WBR1D Datasheet 4.3 RF Current Consumption Table 4-3 Power consumption during constant transmission Working Status Mode TX Power 802.11b +17.56 dBm 802.11g +18.35 dBm 802.11n HT20 +17.43 dBm 802.11n HT40 +16.52 dBm BLE +8.66dBm TX at 2.4 GHz 5150MHz-5250MHz：+16.52dBm 5250MHz-5350MHz：+16.83dBm 802.11a 5470MHz-5725MHz：+15.92dBm 5725MHz-5850MHz：+11.89dBm 5150MHz-5250MHz：+15.87dBm 5250MHz-5350MHz：+15.65dBm 802.11n HT20 5470MHz-5725MHz：+15.77dBm TX at 5GHz 5725MHz-5850MHz：+11.
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WBR1D Datasheet 4.4 Working Current Table 4-5 WBR1D working current Working Mode Working Status (Ta = 25°C) Average Value Maximum Value Unit EZ The module is in EZ mode, and the Wi-Fi indicator blinks quickly. mA AP The module is in AP mode, and the Wi-Fi indicator blinks slowly. mA Connected The module is connected to the network, and the Wi-Fi indicator is steady on. mA Disconnected The module is disconnected from the network, and the Wi-Fi indicator is steady off.
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WBR1D Datasheet 5 RF Features 5.1 Basic RF Features Table 5-1 Basic RF features Parameter Frequency band Description BT:2.400GHz to 2.4835GHz WIFI:2.412 GHz to 2.484 GHz; 5.15 GHz to 5.85 GHz standard IEEE 802.11a/b/g/n (channels 1 to 14 and 36 to 177, channels 1 to 11 for US, channels 1 to 13 for EU) Bluetooth LE 5.0 802.11b: 1, 2, 5.5, or 11 (Mbit/s) Data transmission rate 802.11a/g: 6, 9, 12, 18, 24, 36, 48, or 54 (Mbit/s) 802.11n: HT20 MCS0 to MCS7 802.
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WBR1D Datasheet Parameter Typical Maximum Value Value Unit EVM under 802.11g OFDM, 54 Mbit/s –33.1 dB EVM under 802.11n OFDM, MCS7 –32.2 dB Minimum Value Table 5-3 Performance during constant transmission at 5 GHz Parameter Minimum Value Typical Value Maximum Value Unit Average RF output power, 802.11a OFDM mode 54 Mbit/s N/A 16.83 N/A dBm Average RF output power, 802.11n HT20 mode MCS7 N/A 15.87 N/A dBm Average RF output power, 802.11n HT40 mode MCS7 N/A 14.
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WBR1D Datasheet 6 Antenna Information 6.1 Antenna Type WBR1D uses an onboard PCB antenna. 6.2 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. To prevent adverse impact on the antenna radiation performance, avoid copper or traces along the antenna area on the PCB.
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WBR1D Datasheet 6.3 Antenna Connector Specifications WBR1D does not use an antenna connector. 7 Packaging Information and Production Instructions 7.1 Mechanical Dimensions Figure 7-1 WBR1D mechanical dimensions Figure 7-2 Side view Note: The default dimensional tolerance is ±0.3 mm. If a customer has other requirements, clearly specify them in the datasheet after communication.
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WBR1D Datasheet 7.
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WBR1D Datasheet 7.3 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. Nozzle with a 6 mm to 8 mm diameter (2) Baking equipment i. Cabinet oven ii.
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WBR1D Datasheet (3) If the 30% and 40% circles are pink, bake the module for 6 consecutive hours. (4) If the 30%, 40%, and 50% circles are pink, bake the module for 12 consecutive hours. 4. Baking settings: (1) Baking temperature: 125±5°C (2) Alarm temperature: 130°C (3) SMT placement ready temperature after natural cooling: < 36°C (4) Number of drying times: 1 (5) Rebaking condition: The module is not soldered within 12 hours after baking. 5.
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WBR1D Datasheet 7.4 Recommended Oven Temperature Curve Perform SMT placement based on the following reflow oven temperature curve. The highest temperature is 245°C.
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WBR1D Datasheet 7.
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WBR1D 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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WBR1D Datasheet The final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed. This device have got a FCC ID：2ANDL-WBR1D.