WR3N Reset & Teardown (FCC ID 2ANDL-WR3N)

Before you buy the Tuya Global WR3N, check what's inside.

The Tuya WR3N is a compact, low-power embedded Wi-Fi module featuring an RTL8710BN chipset. It's designed for integration into smart home devices, offering Wi-Fi connectivity and security features.

⚠️ NOTE: Ensure correct battery polarity and voltage levels during installation and operation.

Quick Specs

Manufacturer: Tuya Global
Model: WR3N
Protocol: WiFi
Chipset: Realtek RTL8720
Ecosystem: Tuya / Smart Life
App: Smart Life

🔧 Geek Corner (Flashing Info)

Chipset: RTL8710BN
Flashable: ❌ No
Info: The RTL8710BN chipset and its associated firmware are generally not designed for easy flashing of custom firmware like Tasmota.

User Manual

Scanned pages from the official user manual:

WR3N Manual

External Photos

Photos of the device exterior:

WR3N Exterior

Internal Photos

Teardown photos showing the PCB and components:

WR3N PCB

Verdict

The WR3N is a WiFi device from the Tuya / Smart Life ecosystem.

📄 Click to view full text manual (SEO)

WR3N Datasheet 
1 

1 Product Overview 
WR3N is a low-power embedded Wi-Fi module that Tuya has developed. It consists of a 
highly integrated RF chip (RTL8710BN) and an external flash chip, with an embedded 
Wi-Fi network protocol stack and robust library functions. WR3N also contains a 
low-power Arm Cortex-M4F microcontroller unit (MCU), WLAN MAC protocol, 1T1R 
WLAN module, 256 KB static random-access memory (SRAM), 2 MB flash memory, and 
extensive peripherals. WR3N also contains N32S032 security chip, embeded with 
hardware algorithm co-processor to provide excellent performance DES / 3DES, AES, 
SHA, RSA, ECC and national commercial passwords SM1 / SM2 / SM3 / SM4 and other 
security algorithm modules. WR3N 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 rate: 125 MHz 
 Working voltage: 3.0 V to 3.6 V 
 Peripherals: 7×GPIOs, 2×UART, 1×ADC 
 Wi-Fi connectivity 
 802.11b/g/n20/n40 
 Channels 1 to 14 at 2.4 GHz 
 WPA and WPA2 security modes 
 Up to +20 dBm output power in 802.11b mode 
 STA, AP, and STA+AP working modes 
Product 
Manual 
Tuya WR3N Wi-Fi Module 
Version: 1.0.1 Date: 2020-03-19 No.: 0000000001 
Global Intelligent Platform 
Product 
Manual 
 WR3N Datasheet 
2 
 Smart and AP network configuration modes for Android and iOS devices 
 Onboard PCB antenna 
 Working temperature: –20°C to +85°C 
1.2 Applications 
 Intelligent building 
 Smart household and home appliances 
 Smart socket and light 
 Industrial wireless control 
 Network camera 
 Intelligent bus 
 WR3N Datasheet 
3 
Change History 
No. Date Change Description Version After 
Change 
1 2019-12-28 This is the first release. 1.0.0 
2 2020-03-19 Update RF Current Consumption 1.0.1 

 WR3N Datasheet 
4 
Contents 
1 Product Overview ......................................................................................................... 1 
1.1 Features ............................................................................................................ 1 
1.2 Applications....................................................................................................... 2 
Change History .................................................................................................................... 3 
2 Module Interfaces ......................................................................................................... 5 
2.1 Dimensions and Footprint ................................................................................. 5 
2.2 Interface Pin Definition...................................................................................... 5 
2.3 Test Pin Definition ............................................ Error! Bookmark not defined. 
3 Electrical Parameters ...................................................................................