TYWRD3S Reset & Teardown (FCC ID 2ANDL-TYWRD3S)
Factory reset and internal photos for Tuya Global TYWRD3S. Tuya / Smart Life smart plug.
January 15, 2026
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1 min read
Before you buy the Tuya Global TYWRD3S, check what's inside.
The TYWRD3S is a compact, low-power Wi-Fi module based on the RDA5981B chipset, designed for integration into various smart home devices. It supports 2.4GHz Wi-Fi connectivity and is powered by a battery, making it suitable for embedded applications.
⚠️ NOTE: Ensure correct battery polarity when installing.
Quick Specs
- Manufacturer: Tuya Global
- Model: TYWRD3S
- Protocol: WiFi
- Chipset: Realtek/Beken
- Ecosystem: Tuya / Smart Life
- App: Smart Life
🔧 Geek Corner (Flashing Info)
- Chipset: RDA5981B
- Flashable: ❌ No
- Info: While it's a Wi-Fi module, the RDA5981B chipset and Tuya's proprietary firmware make it difficult to flash with custom firmware like Tasmota or ESPHome without significant hardware modification or specific tools, which are not detailed here.
User Manual
Scanned pages from the official user manual:
External Photos
Photos of the device exterior:
Internal Photos
Teardown photos showing the PCB and components:
Verdict
The TYWRD3S is a WiFi device from the Tuya / Smart Life ecosystem.
📄 Click to view full text manual (SEO)
TYWRD3S Datasheet
Hangzhou Tuya Information Technology Co., Ltd. 1 V2.0.2
1. Product Overview
TYWRD3S is a low-power built-in Wi-Fi module that Hangzhou Tuya Inc has developed. It
consists of a highly integrated RF chip (RDA5981B) and several peripheral components, with a
built-in Wi-Fi network protocol stack and robust library functions. TYWRD3S is embedded with a
low-power ARM-CM4 MCU, 2 MB flash memory, 448 KB SRAM, and rich peripheral resources.
TYWRD3S is an RTOS platform that integrates all the function libraries of the Wi-Fi MAC and
TCP/IP protocols. You can develop built-in Wi-Fi products as required.
1.1 Features
Built-in low-power CPU, which can also be used as an application processor
⚫ Dominant frequency: up to 160 MHz
Working voltage: 3.0 V to 3.6 V
Peripherals: nine GPIOs, one UART, and one ADC
Wi-Fi connectivity
⚫ 802.11b/g/n/HT20
⚫ 2.4GHz WIFI
⚫ WPA, WPA2, WEP, and TKIP security modes
⚫ Up to +20 dBm EIRP output power
⚫ STA, AP, and STA+AP working modes
⚫ Smart and AP network configuration modes (for Android and iOS devices)
Tuya TYWRD3S Wi-Fi Module
Version: 2.0.2 Date: 2019-11-5 No.: 0000000004
Product
Manual
Global Intelligent Platform
TYWRD3S Datasheet
Hangzhou Tuya Information Technology Co., Ltd. 2 V2.0.2
⚫ Onboard PCB antenna
⚫ Working temperature: –20° C to 85C
1.2 Applications
Intelligent building
Smart household and home appliances
Smart socket and light
Industrial wireless control
Baby monitor
Network camera
Intelligent bus
Change History
No. Date Change Description Version After Change
1 2019-07-26 This is the first release. 2.0.0
2 2019-07-26 Modify the pin number. 2.0.1
3 2019-07-26 Delete the Block diagram 2.0.2
TYWRD3S Datasheet
Hangzhou Tuya Information Technology Co., Ltd. 3 V2.0.2
Contents
1. Product Overview ............................................................................................................ 1
1.1 Features.................................................................................................................. 1
1.2 Applications ............................................................................................................ 2
2 Module Interfaces ............................................................................................................. 5
2.1 Dimensions and Footprint ...................................................................................... 5
2.2 Pin Definition .......................................................................................................... 5
2.3 Test Pin Definition ................................................................................................... 7
3 Electrical Parameters ........................................................................................................ 7
3.1 Absolute Electrical Parameters .............................................................................. 7
3.2 Electrical Conditions .............