WB3S Reset & Teardown (FCC ID 2ANDL-WB3S)
Factory reset and internal photos for Tuya Global WB3S. Tuya / Smart Life smart plug.
January 15, 2026
•
1 min read
Before you buy the Tuya Global WB3S, check what's inside.
The WB3S is a low-power, embedded Wi-Fi module developed by Tuya, featuring a BK7231T chipset. It is designed for IoT applications requiring Wi-Fi connectivity and can also support Bluetooth.
⚠️ NOTE: Ensure correct battery polarity and voltage.
Quick Specs
- Manufacturer: Tuya Global
- Model: WB3S
- Protocol: WiFi + Bluetooth LE
- Chipset: Beken BK7231T
- Ecosystem: Tuya / Smart Life
- App: Smart Life
🔧 Geek Corner (Flashing Info)
- Chipset: BK7231T
- Flashable: ✅ Yes
- Info: The WB3S module with BK7231T chipset is known to be flashable with custom firmware like OpenBeken/LibreTiny.
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 WB3S is a WiFi device from the Tuya / Smart Life ecosystem.
📄 Click to view full text manual (SEO)
WB3S Datasheet
1
1. Product Overview
WB3S
is a low
-
power embedded Wi
-
Fi module that Tuya has developed.
It consists of a
highly integrated RF chip (BK7231T) and several peripheral components, with an
embedded Wi
-
Fi network protocol stack and robust library functions. WB3S also
contains a low
-
powe
r Arm Cortex
-
M4 microcontroller unit (MCU), 1T1R WLAN module,
256 KB static random
-
access memory (SRAM), 2 MB flash memory, and extensive
peripherals.
WB3S is an RTOS platform that integrates all function libraries of the Wi
-
Fi MAC and
TCP/IP protocols. Yo
u 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 rate: 120 MHz
Working voltage: 3.0 V to 3.6 V
Peripherals: nine GPIOs, one universal asynchronous recei
ver/transmitter (UART),
and one analog
-
to
-
digital converter (ADC)
Wi
-
Fi connectivity
802.11b/g/n
Channels 1 to 14 at 2.4 GHz
WPA and WPA2 security modes
Up to +
20
dBm output power in 802.11b mode
EZ net pairing mode for Android and iOS devices
Onboard PCB antenna with a gain of
1.5
dBi
Tuya WB3S Wi
-
Fi Module
Version: 1.0.0
Date: 2019
-
11
-
22
No.: 0000000001
Product
Manual
Global Intelligent Platform
WB3S Datasheet
2
Working temperature:
20°C to +85°C
BT
Support Bluetooth (V4.0)
Maximum output power +
7
dBm
Onboard PCB antenna with a gain of
1
.5 dBi
1.2 Applications
Intelligent building
Smart household and home appliances
Smar
t socket and light
Industrial wireless control
Baby monitor
Network camera
Intelligent bus
WB3S Datasheet
3
Change History
No.
Date
Change Description
Version After Change
1
2019
-
11
-
22
This is the first release.
1.0.0
WB3S Datasheet
4
Contents
1. Product Overview
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1
1.1 Features
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1
1.2 Applications
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2
2 Module Interfaces
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6
2.1 Dimensions and Footprint
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6
2.2 Interface Pin Definition
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6
2.3
Test Pin Definition
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...
8
3 Electric
al Parameters
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9
3.1 Absolute Electrical Parameters
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9
3.2 Electrical Co...