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NodeMcu ESP8266 CP2102 Module Lua WIFI ESP-12E 4MB
STM8 Minimum System Development Board- STM8S103F3P
NodeMcu Base ESP8266 shield Testing DIY Board
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NodeMcu ESP8266 V3 Lua CH340 WIFI Development board
ESP8266 wifi module for Arduino Raspberry
WS2812 RGB LED Breakout board module
Ultrasonic HC-SR04 Mount Holder ping sensor bracket
stethoscope school experimental science kit doctor STEM DIY