DollaTek
WT32-ETH01 Embedded Serial Port Networking Ethernet WIFI Combo Gateway MCU ESP32 Wireless Module

$16 $14
From Amazon UK
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Product Details

Adopt dual-core 32-bit LX6 MCU. Integrated SPI flash 3.32Mbit SRAM 520KB. Support TCP Server, TCP Client, UDP Server, UDP Client working mode. Support the four data ports of serial port, wif. Ethernet and Bluetooth-compatible-compatible to be combined in pairs, and the data is transparently transmitted. Support to connect to the network through wired network or wifi to upgrade the firmware. Support wifi to connect to the Internet or LAN through a router, establish a TCP/UDP connection, and access the user's designated server.

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