Beetle CM-32U4 - Compatible with Arduino Leonardo - ATmega32U4

Beetle CM-32U4, an upgraded version of DFRobot Beetle Board, adds a charge management function while retaining the original advantages like rich functions and small size.

It allows users to charge a battery pack by the onboard USB or use a battery pack to power the board when other power supply methods are not available, which can greatly increase the service life when using this little board in "one-off" compact projects.

There are 3 power supply methods: USB power supply; Battery pack power supply on the BAT pin; 5V external power supply on the VIN pin.

Features like compact size, being rechargeable and diverse power supplies make this board more widely applicable to DIY projects, workshops, gift projects, E-Textiles wearable, and educational.

Board Overview

FEATURES

• Rich functions
• Small size
• Greatly increase the service life

APPLICATIONS

• DIY projects
• Workshops
• Gift projects
• E-Textiles wearable

SPECIFICATION

• Operating Voltage: 5V DC
• Maximum Charging Current: 600mA
• Minimum Charging Current: 200mA
• Operating Temperature Range: -40～125℃
• Interface: I2C x 1,SPI x 1,UART x 1,Analog x 2,Digital x 2
• Dimension: 22 x 20.5mm/0.87 x 0.81”

DOCUMENTS

• Product wiki
• Schematic
• ATmega32U4 Datasheet

SHIPPING LIST

• Beetle CM-32U4 x1