{"product_id":"digispark-attiny85-micro-usb-development-board-6gpio-i2c-arduino","title":"Digispark ATtiny85 Micro USB Development Board — 6 GPIO, I²C, Arduino IDE Compatible","description":"\u003ch2\u003eDigispark ATtiny85 — Micro USB Development Board\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eDigispark ATtiny85\u003c\/strong\u003e is the world's smallest Arduino-compatible development board, built around the \u003cstrong\u003eAtmel ATtiny85\u003c\/strong\u003e 8-bit AVR microcontroller. With a built-in USB bootloader and \u003cstrong\u003e6 usable GPIO pins\u003c\/strong\u003e, it's perfect for compact wearable projects, USB HID devices, and space-constrained embedded applications — all programmable directly from the \u003cstrong\u003eArduino IDE\u003c\/strong\u003e.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eKey Specifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMicrocontroller\u003c\/td\u003e\n\u003ctd\u003eAtmel ATtiny85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClock Speed\u003c\/td\u003e\n\u003ctd\u003e16.5MHz (USB mode) \/ 8MHz (internal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlash Memory\u003c\/td\u003e\n\u003ctd\u003e8KB (6KB available after bootloader)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSRAM\u003c\/td\u003e\n\u003ctd\u003e512 bytes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEEPROM\u003c\/td\u003e\n\u003ctd\u003e512 bytes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGPIO Pins\u003c\/td\u003e\n\u003ctd\u003e6 (P0–P5, including USB pins P3\/P4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePWM Pins\u003c\/td\u003e\n\u003ctd\u003e3 (P0, P1, P4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eADC Pins\u003c\/td\u003e\n\u003ctd\u003e4 (P2, P3, P4, P5)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI²C\u003c\/td\u003e\n\u003ctd\u003eYes (P0=SDA, P2=SCL via TinyWireM)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e5V (USB) or 3.5V–5V (VIN)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSB Interface\u003c\/td\u003e\n\u003ctd\u003eMicro USB (built-in V-USB bootloader)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoard Size\u003c\/td\u003e\n\u003ctd\u003e~18mm × 25mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003chr\u003e\u003ch3\u003eWhy Choose Digispark ATtiny85?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eSmallest Arduino-compatible board\u003c\/strong\u003e — 18×25mm, fits anywhere\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eBuilt-in USB bootloader\u003c\/strong\u003e — no external programmer needed, plug into USB and upload\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eArduino IDE compatible\u003c\/strong\u003e — install Digistump board package and use familiar Arduino syntax\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eUSB HID capable\u003c\/strong\u003e — emulate keyboard, mouse, or joystick via DigiKeyboard library\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eLow power\u003c\/strong\u003e — ATtiny85 sleep modes for battery-powered wearables\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eCompatible With \/ Works With\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArduino IDE\u003c\/strong\u003e (Digistump AVR board package)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigiKeyboard library\u003c\/strong\u003e — USB HID keyboard\/mouse emulation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTinyWireM library\u003c\/strong\u003e — I²C master for SSD1306 OLED, DS1307 RTC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoftSerial library\u003c\/strong\u003e — software UART on any GPIO pin\u003c\/li\u003e\n\u003cli\u003eSensors: DHT11 (P0), NTC thermistor (ADC), LDR (ADC)\u003c\/li\u003e\n\u003cli\u003eDisplays: SSD1306 0.96\" OLED (I²C via TinyWireM)\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB HID Device\u003c\/strong\u003e — custom keyboard shortcut macro pad, USB rubber ducky\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWearable Electronics\u003c\/strong\u003e — LED badge, NeoPixel wristband controller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Sensor Node\u003c\/strong\u003e — temperature logger with DHT11 + EEPROM storage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB Charger Trickle\u003c\/strong\u003e — keep-alive USB device for power banks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIR Remote Emulator\u003c\/strong\u003e — ATtiny85 + IR LED for custom remote control\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ: How do I program Digispark with Arduino IDE?\u003c\/strong\u003e\u003cbr\u003eA: Install the Digistump AVR board package via Board Manager URL: \u003ccode\u003ehttp:\/\/digistump.com\/package_digistump_index.json\u003c\/code\u003e. Select \"Digispark (Default - 16.5mhz)\" as board. Upload — plug in the USB when prompted (within 60 seconds).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Can Digispark use all 6 GPIO pins simultaneously?\u003c\/strong\u003e\u003cbr\u003eA: P3 and P4 are shared with USB. During normal operation (non-USB), all 6 pins are available. During USB communication, P3\/P4 are reserved for USB D-\/D+.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ: Is Digispark compatible with 3.3V sensors?\u003c\/strong\u003e\u003cbr\u003eA: The board runs at 5V. Use a voltage divider or level shifter for 3.3V sensors. Some 3.3V sensors (like SSD1306 OLED) are 5V-tolerant on I²C lines.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003ePackage Contents\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1× Digispark ATtiny85 Micro USB Development Board\u003c\/li\u003e\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"ATTINY85","offer_id":46991478915307,"sku":"14:201659813#ATTINY85","price":18.4,"currency_code":"USD","in_stock":true},{"title":"ATTINY85 QFN","offer_id":46991478948075,"sku":"14:4044226#ATTINY85 QFN","price":18.2,"currency_code":"USD","in_stock":true},{"title":"ATTINY85 Black","offer_id":46991478980843,"sku":"14:1202#ATTINY85 Black","price":18.04,"currency_code":"USD","in_stock":true},{"title":"ATTINY85 Connector","offer_id":46991479013611,"sku":"14:351074#ATTINY85 Connector","price":6.84,"currency_code":"USD","in_stock":true},{"title":"ATTINY85 Blue","offer_id":46991479046379,"sku":"14:350852#ATTINY85 Blue","price":18.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/digispark-attiny85-micro-development-board-usb-module-for-arduino.webp?v=1761628308","url":"https:\/\/keszoox.com\/products\/digispark-attiny85-micro-usb-development-board-6gpio-i2c-arduino","provider":"Keszoox","version":"1.0","type":"link"}