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Unlike conventional silicon PN-junction diodes
Build contactless identification and access control systems with the RC522 RFID module from The Engineer Store
and cost in multi-device control systems
many gears in the set have shaft holes of 2mm
Scratch (block-based) Weight Varies by configuration (approx
Arduino UNO+WiFi R3 ATmega328P+Node MCU ESP8266 CH340G Compatible Board Float Switch Sensor For Water Level Controller With 2 Meter Wire Unlike conventional silicon PN-junction diodesArduino UNO+WiFi R3 ATmega328P+NodeMCU ESP8266 CH340G Compatible Board The ultimate 2 in 1 development board combining the power of Arduino UNO R3 (ATmega328P) and NodeMCU ESP8266 WiFi module on a single PCB. Featuring a CH340G USB to serial converter and onboard DIP switches for seamless mode switching, this board eliminates the need for separate shields or wiring. Ideal for IoT projects, home automation, and wireless sensor networks. Available from
