Digispark ATTINY85 Micro Dev Board – Arduino USB I2C
Digispark ATTINY85 Micro Dev Board – Arduino USB I2C
Digispark ATTINY85 Micro Development Board – Compact Arduino-Compatible Module
Take your maker projects to the next level with the Digispark ATTINY85 Micro Development Board — a tiny yet powerful microcontroller module fully compatible with the Arduino IDE. Whether you're a hobbyist, student, or embedded systems enthusiast, this compact board packs impressive functionality into an incredibly small footprint. Made in China.
Key Features
- Arduino IDE Compatible: Supports Arduino IDE 1.0+ on macOS, Windows, and Linux — get started in minutes.
- Flexible Power Options: Power via USB or an external source (5V or 7–35V) with automatic source selection.
- On-Board 500mA 5V Voltage Regulator: Stable power delivery for your circuits and peripherals.
- Built-in USB Interface: Program and communicate directly over USB — no extra programmer needed. Includes serial debugging support.
- 6 I/O Pins: Up to 6 general-purpose I/O pins available; 2 are shared with USB (usable for I/O when not actively communicating over USB).
- 8KB Flash Memory: ~6KB available after bootloader — plenty for lightweight embedded applications.
- I2C & SPI Support: Via USI (Universal Serial Interface) for easy sensor and peripheral integration.
- PWM on 3 Pins: Hardware PWM on 3 pins, with additional software PWM possible.
- 4-Channel ADC: Analog-to-digital conversion on 4 pins for reading analog sensors.
- Status LEDs: Onboard Power LED and a Test/Status LED on Pin 0 for quick visual feedback.
Technical Specifications
| Microcontroller | ATtiny85 |
| Flash Memory | 8KB (approx. 6KB usable) |
| I/O Pins | 6 |
| PWM Pins | 3 (hardware), more via software |
| ADC Channels | 4 |
| Communication | USB, I2C, SPI (USI) |
| Power Input | 5V (USB) or 7–35V (external) |
| Onboard Regulator | 500mA, 5V |
| IDE Support | Arduino IDE 1.0+ (macOS, Windows, Linux) |
| Color | Blue/Black |
| Condition | New |
| Origin | Made in China |
Who Is This For?
The Digispark ATTINY85 module is perfect for:
- DIY electronics and maker projects
- Wearable tech and space-constrained builds
- Students learning embedded programming
- Rapid prototyping with Arduino-compatible code
- Low-power, lightweight automation tasks
In the Box
- 1 × Digispark ATTINY85 Micro Development Board
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Frequently Asked Questions
Q: Is the Digispark ATTINY85 board compatible with the Arduino IDE?
A: Yes! The Digispark ATTINY85 development board fully supports the Arduino IDE version 1.0 and above on macOS, Windows, and Linux. You can program it directly over USB after installing the Digispark board definitions in your IDE.
Q: How many I/O pins does the ATTINY85 Digispark board have?
A: The board features 6 I/O pins in total. Two of these are shared with the USB interface but can still be used as general-purpose I/O when your program is not actively communicating over USB, giving you maximum flexibility for your project.
Q: Can I power the Digispark ATTINY85 module without USB?
A: Absolutely. The board supports both USB power (5V) and an external power source ranging from 7V to 35V. It automatically selects the appropriate power source, making it versatile for battery-powered or externally powered applications.
Q: Does the Digispark ATTINY85 board support I2C and SPI communication?
A: Yes. The ATTINY85 module supports both I2C and SPI communication protocols via the built-in USI (Universal Serial Interface), making it straightforward to connect sensors, displays, and other peripherals.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.