The A-Star 32U4 Prime SV is a programmable board based on Atmel?s ATmega32U4 microcontroller and arranged in the common Arduino form factor. The A-Star Prime offers many additional features and improvements over competing products, including superior power management that enables efficient operation from 5 V to 36 V. The A-Star 32U4 Prime SV is available in several configurations; This product has no microSD support and includes preinstalled female headers common to many Arduinos.
Our comprehensive user?s guide provides the basics you need to get started with the A-Star as well as detailed technical information for advanced users.
- Programmable ATmega32U4 MCU with 32 KB flash, 2.5 KB SRAM, 1 KB EEPROM, and native full-speed USB (clocked by precision 16 MHz crystal oscillator)
- Preloaded with Arduino-compatible bootloader (no external programmer required)
- All 26 general-purpose I/O lines from the ATmega32U4 are broken out (including PB0, PD5, and PE2); 7 of these can be used as hardware PWM outputs and 12 of these can be used as analog inputs
- Convenient 0.1?-spaced power, ground, and signal connection points
- Buzzer option for simple sounds and music
- microSD support (microSD version only)
- HD44780-based character LCD option
- 3 user-controllable LEDs
- 3 user pushbuttons
- Reset button
- Power features:
- Can be powered from USB or from an external source (with several access points for connecting external power)
- LV operating range: 2.7 V to 11.8 V
- SV operating range: 5 V to 36 V
- Switching 5 V regulator enables efficient operation
- 3.3 V rail supplied by 300 mA linear regulator
- Power switch for external power inputs
- Reverse-voltage protection on external power inputs
- Power selection circuit allows for seamless switching between power sources while providing overcurrent protection, and feedback about which power source is selected
- 6-pin ISP header for use with an external programmer
- Comprehensive user?s guide
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