Looking for a tiny, tiny Arduino-compatible board like the Pro Mini - but would like an onboard USB interface with full serial? Then PMD Way has the answer with this range of Pro Micro-compatible boards, that include free delivery. These baords help shrinkify your project without needing to do without the convenience of a USB interface. Based around the ATmega32U4, you can use this as an Arduino Leonardo in the Arduino IDE. You will need a USB cable to upload sketches to your Pro Mini-compatible board. Please select your USB socket type from mini, micro or USB-C using the options menu. Two rows of inline header pins are included but not soldered to the board. We also offer these in packs of ten. Note - when connecting external power between 7 and 12V DC - use the RAW pin! Vcc pin is for 5V only! If you short the J1 solder pads, Vcc is shorted to the USB line, bypassing the regulator. Board Specifications: Atmel ATmega32U4 microcontroller clocked at 16MHz - running at 5V Supported with the Arduino IDE as a "Leonardo" Onboard microUSB socket for programming and serial monitor use Four 10-bit analogue-to-digital inputs Twelve digital I/O pins (five with PWM - pulse-width modulation) TX and RX hardware serial pinouts Onboard voltage regulator - input range between 7 and 12V DC Onboard LEDs for D13 and TX/RX indication Equivalent to Sparkfun DEV-12640. Dimensions: Board pinouts: ATmega32U4 Specifications: Absolutely maximum at Vcc - 6V Maximum current per pin - 40 mA (recommended
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