ATtiny85 Micro USB Development Board - CJMCU I2C Breakout with Header Pins

ATtiny85 Micro USB Development Board - CJMCU I2C Breakout with Header Pins

A compact and capable ATtiny85 development board in a tiny purple PCB footprint. With a Micro USB port for power and programming, full I2C breakout pins (VCC, GND, SDA, SCL, MAK, INT, RST), and unsoldered male header pins included, this board is ideal for space-constrained embedded projects, wearables, and USB HID device development.

Key Features

• ATtiny85 microcontroller - 8KB flash, 512B EEPROM, 6 I/O pins, 8-bit timer
• Micro USB port - for power supply and USB-based programming (Digispark-compatible)
• I2C breakout header: VCC, GND, SDA, SCL, MAK, INT, RST pins
• Unsoldered male header pins included - solder to suit your project needs
• Compact purple PCB - fits breadboards and tight wiring layouts
• Compatible with Arduino IDE via Digispark ATtiny85 board package
• Suitable for USB HID keyboards, mouse emulation, and automation scripts

Specifications

• Microcontroller: Atmel ATtiny85
• Flash Memory: 8KB (minus bootloader)
• EEPROM: 512 bytes
• Clock Speed: 16.5MHz (USB mode)
• I/O Pins: 6 usable (shared with USB)
• Interface: Micro USB (power + programming)
• Breakout Pins: VCC, GND, SDA, SCL, MAK, INT, RST
• Programming: Arduino IDE with Digispark board package
• PCB Color: Purple

Perfect For

• USB HID Keyboard and Mouse Emulation Projects
• Arduino-compatible ATtiny85 Development
• I2C Sensor and Module Interface Testing
• Wearable Electronics and Compact IoT Nodes
• USB Automation Scripts (Rubber Ducky-style)
• Beginner Embedded Systems Projects with Arduino IDE

Order now and start building compact USB-enabled projects with the powerful ATtiny85.