A-Star 32U4 Prime LV microSD with LCD (ac03b)
Clearance: This product is being replaced by a newer ac03e version with an improved 5 V regulator that operates from 2 V to 16 V and can deliver more current.
The A-Star 32U4 Prime LV is a programmable board based on the ATmega32U4 AVR 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 2.7 V to 11.8 V. This configuration of the A-Star 32U4 Prime LV includes microSD support, preinstalled female headers common to many Arduinos, and a removable 8×2 character LCD.
Alternatives available with variations in these parameter(s): version
|Description||Specs (17)||Pictures (11)||Resources (24)||FAQs (0)||On the blog (4)|
|Size:||2.8″ × 2.1″ (common Arduino form factor)|
|Processor:||ATmega32U4 @ 16 MHz|
|RAM size:||2560 bytes|
|Program memory size:||32 Kbytes1|
|User I/O lines:||26|
|Input voltage range:||2.7 V to 11.8 V (LV)|
|Minimum operating voltage:||2.7 V|
|Maximum operating voltage:||11.8 V|
|Maximum output current:||1.5 A2|
|Logic voltage:||5 V|
|Reverse voltage protection?:||Y|
|External programmer required?:||N|
|Version:||includes an 8×2 character LCD, microSD support, and preinstalled female headers|
|PCB dev codes:||ac03b|
|Other PCB markings:||0J8603|
- Note that 4 KB of the MCU's 32 KB of flash memory is used by the pre-installed USB bootloader. All 32 KB is available when programming via the ISP header rather than the bootloader.
- Available current depends on input voltage, current consumed by the board, ambient conditions, and regulator topology. See product documentation and performance graphs for details.