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30mm x 20mm Onboard Features Volume potentiometer
Compact Cold-Side Heatsink: Precision-machined aluminum cold plate provides excellent thermal contact with the Peltier module's cold face
Scratch (block-based) Weight Varies by configuration (approx
Unlike conventional silicon PN-junction diodes
ideal for powering small electronics projects
Arduino UNO+WiFi R3 ATmega328P+Node MCU ESP8266 CH340G Compatible Board Float Switch Sensor For Water Level Controller With 2 Meter Wire 30mm x 20mm Onboard FeaturesArduino 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
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