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Global Intelligent Platform
Product
Manual
Version: 2.0.0
1. Product Overview
TYWRD2S is a low-power embedded Wi-Fi module that Tuya has developed. It consists
of a highly integrated RF chip (RDA5981B) and several peripheral components, with an
embedded Wi-Fi network protocol stack and robust library functions. TYWRD2S is
embedded with a low-power Arm Cortex-M4 MCU, 2 MB flash memory, and 448 KB static
random-access memory (SRAM), and has extensive peripherals.
TYWRD2S 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 CPU, which can also function as an application processor
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Dominant frequency: up to 160 MHz
Working voltage: 3.0 V to 3.6 V
Peripherals: five GPIOs, one universal asynchronous receiver/transmitter (UART),
and one analog-to-digital converter (ADC)
Wi-Fi connectivity
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802.11b/g/n HT20
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2.4GHz WiFi
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WPA, WPA2, WEP, and TKIP security modes
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Up to +17 dBm output power in 802.11b mode
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STA, AP, and STA+AP working modes
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Smart and AP network configuration modes for Android and iOS devices
⚫
Onboard PCB antenna with antenna gain of 1.0dBi.
Tuya TYWRD2S Wi-Fi Module
Date: 2019-09-04
No.: 0000000001
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Summary of Contents for TUYA TYWRD2S
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Page 1: Product Overview
Arm Cortex-M4 MCU, 2 MB flash memory, and 448 KB static random-access memory (SRAM), and has extensive peripherals. TYWRD2S 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. -
Page 2: Applications
Working temperature: –20° C to +85° C 1.2 Applications Intelligent building Smart household and home appliances Smart socket and light Industrial wireless control Baby monitor Network camera Intelligent bus Hangzhou Tuya Information Technology Co., Ltd. V2.0.0... - Page 3 TYWRD2S Datasheet Change History Date Change Description Version After Change 2019-07-26 This is the first release. 2.0.0 Hangzhou Tuya Information Technology Co., Ltd. V2.0.0...
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Page 4: Table Of Contents
2.3 Test Pin Definition ....................8 3 Electrical Parameters ......................8 3.1 Absolute Electrical Parameters ................8 3.2 Electrical Conditions ....................9 3.3 TYWRD2S RX Power Consumption ..............10 3.4 Working Current ....................10 4 RF Features ........................10 4.1 Basic RF Features ....................10 4.2 TYWRD2S Output Power .................. - Page 5 7 MOQ and Packing Information ..................17 8 Appendix: Statement ....................... 18 Figures Figure 2-1 TYWRD2S front and rear views ................. 6 Figure 6-1 TYWRD2S mechanical dimensions ..............13 Figure 6-2 Side view ......................13 Figure 6-3 TYWRD2S pins ....................14 Figure 6-4 PCB encapsulation diagram of TYWRD2S ............
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Page 6: Module Interfaces
2.1 Dimensions and Footprint TYWRD2S has two rows of pins with a 2 mm pin spacing. The TYWRD2S dimensions (H x W x D) are 3.5± 0.15 mm x 15± 0.35 mm x 17.97± 0.35 Figure 2-1 shows TYWRD2S front and rear views. - Page 7 2. This pin can only function as an ADC input and not a common I/O. If this pin is not used, it must be disconnected. When this pin is used as the ADC input, the input voltage range is 0 V to 2.0 V. 3. The UART pins are user-side serial interfaces. Hangzhou Tuya Information Technology Co., Ltd. V2.0.0...
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Page 8: Test Pin Definition
TYWRD2S Datasheet 2.3 Test Pin Definition Table 2-2 TYWRD2S test pins Pin No. Symbol I/O Type Function Used for the module production test Output UART2_TXD, used to display the module internal information, and corresponding to GPIO2 (pin 22) on the IC... -
Page 9: Electrical Conditions
Working ° C temperature Working voltage –0.3 I/O low-level VCC x input 0.25 I/O high-level VCC x input 0.75 I/O low-level VCC x output I/O high-level VCC x 0.8 output I/O drive current Hangzhou Tuya Information Technology Co., Ltd. V2.0.0... -
Page 10: Tywrd2S Rx Power Consumption
Table 4-1 Basic RF features Parameter Description Frequency band 2.4GHz Wi-Fi standard IEEE 802.11b/g/n20 802.11b: 1, 2, 5.5, or 11 (Mbit/s) Data transmission rate 802.11g: 6, 9, 12, 18, 24, 36, 48, or 54 (Mbit/s) Hangzhou Tuya Information Technology Co., Ltd. 10 V2.0.0... -
Page 11: Tywrd2S Output Power
Maximum Parameter Unit Value Value Value PER < 8%, 802.11b CCK –90 1 Mbit/s mode PER < 10%, 802.11g OFDM –73 54 Mbit/s mode PER < 10%, 802.11n OFDM –70 MCS7 mode Hangzhou Tuya Information Technology Co., Ltd. 11 V2.0.0... -
Page 12: Antenna Information
TYWRD2S Datasheet 5 Antenna Information 5.1 Antenna Type TYWRD2S uses an onboard PCB antenna. 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. -
Page 13: Antenna Connector Specifications
TYWRD2S Datasheet 5.3 Antenna Connector Specifications TYWRD2S does not use an antenna connector. 6 Packaging Information and Production Instructions 6.1 Mechanical Dimensions Figure 6-1 TYWRD2S mechanical dimensions Figure 6-2 Side view Hangzhou Tuya Information Technology Co., Ltd. 13 V2.0.0... -
Page 14: Recommended Pcb Encapsulation
Use an SMT placement machine to mount components to the stamp hole module that Tuya produces 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 components to the module. -
Page 15: Figure 6-5 Hic For Tywrd2S
(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 Hangzhou Tuya Information Technology Co., Ltd. 15 V2.0.0... -
Page 16: Recommended Oven Temperature Curve
Tuya is not liable for such problems and consequences. 6. Before SMT placement, take electrostatic discharge (ESD) protective measures. -
Page 17: Storage Conditions
TYWRD2S Datasheet 6.5 Storage Conditions 7 MOQ and Packing Information MOQ and packing information Number of Number of Reel Product Packing Modules in Packs in Each Model Method Each Reel Pack Hangzhou Tuya Information Technology Co., Ltd. 17 V2.0.0... -
Page 18: Appendix: Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20 cm between the radiator and your body. Hangzhou Tuya Information Technology Co., Ltd. 18 V2.0.0... - Page 19 Declaration of Conformity European notice Hereby, Hangzhou Tuya Information Technology Co., Ltd. declares that this Wi-Fi module product is in compliance with essential requirements and other relevant provisions of Directive 2014/53/EC. A copy of the Declaration of conformity can be found at https://www.tuya.com.
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