The on-board charger keeps things simple - no external charging modules required
Parameter Detail Microcontroller ATmega32U4 Operating Voltage 5V Input Voltage (Recommended) 7-12V Digital I/O Pins 20 (7 PWM capable) Analog Input Pins 12 Flash Memory 32 KB (4 KB used by bootloader) SRAM 2
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and upload your first "Blink" sketch to begin your electronics journey
and remote sensor networks where power efficiency is critical
FINGERPRINT SENSOR MODULE iot The on-board charger keeps thingsFINGERPRINT SENSOR MODULE Secure your projects with this optical Fingerprint Sensor Module, designed for reliable biometric identification and authentication. Featuring high accuracy fingerprint recognition, onboard storage for multiple fingerprint templates, and simple UART serial communication, this module integrates seamlessly with Arduino, ESP32, Raspberry Pi, and other microcontrollers. Ideal for access control systems, attendance machines, smart