Attiny85 Micro USB Development Board

Microcontroller Core: Powered by the 8-bit ATtiny85-20SU AVR processor running at up to 16.5 MHz with 8KB Flash memory, 512 B SRAM, and 512 B EEPROM.

Onboard Direct USB Plug Connector: Features a built-in PCB USB Type-A connector, allowing direct connection to a computer for power and code uploading without needing external cables or programmers.

Versatile I/O Pins: Breaks out 6 general-purpose I/O (GPIO) pins supporting I2C, SPI, PWM output, and 4-channel $10\text{-bit}$ analog-to-digital conversion (ADC).

Flexible Power Delivery Options: Accepts 5V DC power via the USB port or 7V–12V DC external power via onboard voltage regulator headers.

Arduino IDE & Micronucleus Bootloader Compatible: Fully supported by the Arduino IDE via standard board manager packages for rapid prototyping using familiar C/C++ libraries.

Module Construction: Built on a double-sided FR-4 glass epoxy printed circuit board featuring surface-mount components, gold-plated USB trace pads, and standard 2.54 mm header pins.

Operating Voltage & Logic: Logic circuits run on 5V DC. Ensure connected sensors match the 5V logic levels to prevent pin over-voltage.

Handling Precautions: Align the board properly when inserting into USB Type-A ports to avoid mechanical strain on the board traces. Handle by the outer PCB edges.

Environmental Limits: Operating temperature range spans -40°C to +85°C. Keep protected from static discharge, metallic dust, and liquid moisture.

Ultra-Compact Automation Node: Position as the ideal micro-sized board for dedicated single-task projects, mini USB devices, and hidden automation scripts.

Cost-Effective Alternative for Basic Projects: Highlight as a budget-friendly substitute for larger Arduino boards when projects only require a few I/O pins.

Recommended Cross-Sell Add-ons: Pair with Breadboard Jumper Wires, Solderless Breadboards, 5V Relay Modules, and Basic Sensor Arrays.

Ideal for Mini DIY Tech: Perfect platform for constructing custom USB macro keys, LED indicators, temperature monitoring nodes, and small robotics controllers.