Hangzhou Tuya Information Technology Co. Ltd WR3 Manual Do Utilizador

WR3 DATASHEET 

TuyaSmartWi-Fi Module 

WR3 is a low power consumption module with built-in Wi-Fi connectivity solution designed 

by Hangzhou Tuya Information Technology Co.,Ltd. The Wi-Fi Module consists of a highly 

integrated wireless radio chip W302 12E75M2 and some extra flash that has been programed with 

Wi-Fi network protocol and plenty of software examples.WR3 includea ARM CM4F, WLAN 

MAC, 1T1R WLAN, maximum frequency reaches 125MHz, 256K SRAM, 1M byte flash and 

various peripheral resources. 

WR3 is a RTOS platform, embedded with all the Wi-Fi MAC and TCP/IP protocol function 

examples, users can customize their Wi-Fi product by using these software examples. 

Figure 1 shows the block diagramof the WR3. 

Figure 1. The block diagram of the WR3 

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Integrated low power consumption 32-bit CPU, also known as application processor

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Basic frequency of the CPU can support 125 MHz

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Supply voltage: 

DC 3.3V

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Peripherals: 7 GPIO channels, 2 UART, 1 ADC

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Wi-Fi connectivity:
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802.11 B/G/N20/N40

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Channel 1 to 11 @ 2.4GHz

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Support WPA/WPA2

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+20.09dBm output power in 802.11b mode