A-Star 32U4 Prime LV microSD
The A-Star 32U4 Prime LV is available in several configurations; Item # 3108 includes pre-installed female headers common to many Arduinos and microSD support. Global viewA-Star 32U4 Prime LV, bottom view. Pololu A-Star 32U4 Prime is a general purpose programmable board based on the ATmega32U4 AVR microcontroller from Atmel and arranged in the common Arduino form factor exemplified by Uno R3 and Leonardo. As such, A-Star Prime (abbreviated A * Prime) is compatible with many Arduino shields, including all Arduino shields that we carry. All 26 GPIO lines of the microcontroller are accessible on the board, including seven that can be used as PWM outputs and twelve that can be used as analog inputs. The ATmega32U4 is capable of native full-speed USB, which makes it more versatile than similar cards that rely on USB to serial adapters: in addition to supporting a virtual serial / COM port interface (CDC), A-Star may appear to a computer connected like a mouse and keyboard.
Features:
• Programmable ATmega32U4 MCU with 32 KB flash, 2.5 KB SRAM, 1 KB EEPROM and native full speed USB (with 16 MHz precision crystal oscillator clock) Preloaded with bootloader compatible with Arduino
• All 26 ATmega32U4 general purpose I / O lines are divided (including PB0, PD5 and PE2); 7 of them can be used as hardware PWM outputs and 12 of them can be used as analog inputs
• Convenient points of connection for power, ground and signal with 0.1 spacing?
• Option bell for simple sounds and musicSupport for microSD (microSD version only)
• Character LCD option based on HD447803
• User-controlled LEDs3 user push buttons
• Push button reset
• Can be powered by USB or an external source (with several access points to connect external power)
• BT operating range: 2.7 V to 11.8 V
• SV operating range: 5 V to 36 VChanging the 5 V regulator allows efficient operation
• 3.3 V rail provided by 300 mA linear regulator
• On / off switch for external power inputs
• Reverse voltage protection at input
Includes:
• 1x A-Star 32U4 Prime LV microSD.