Atmel ATtiny25, ATtiny45, ATtiny85 Datasheet
Technoblogy - Getting Extra Pins on ATtiny
Introduction to ATtiny85 - The Engineering Projects
Attiny (tinyAVR) series-0 and how to use their GPIO - Daumemo
ATDEV For ATtiny - DIYODE Magazine
Tiny AVR Programmer Hookup Guide - SparkFun Learn
Leakage Test - Power's Wiki
ATtiny85
DigiLogiProbe V1 (updated With V2) : 8 Steps - Instructables
ATtiny pinout leaves me confused. How to call the pins? - Microcontrollers - Arduino Forum
Secrets of Arduino PinMode: How to use it...
Are the arduino pins tri-state? : r/beneater
Attiny (tinyAVR) series-0 and how to use their GPIO - Daumemo
ATtiny85
ATtiny85 PWM Primer Tutorial Using Arduino
Controlling AVR I/O ports with AVR-GCC - Embedds
ATTiny85 pin pulling input down - General Electronics - Arduino Forum
io - How can I read a tristate output with microcontroller? - Electrical Engineering Stack Exchange
ATtiny85 Pinout - ElectronicsHub
ATtiny85 Microcontroller Pinout, Features, Specs & Datasheet
ATtiny85 Microcontroller tutorial: GPIO as output - Gadgetronicx
Fab Academy 2017- Daniel Amigo Casado
Tutorial 10: Wireless sensor data transmitter using Bluetooth and ATtiny85
