Attiny85 20PU IO pins enought for this proyect - Project Guidance - Arduino Forum
ATTiny 45/85 Pin Conventions for Arduino IDE Sketches | Engineer Zero
Getting More I/O Pins on ATTiny With Shift Registers : 6 Steps (with Pictures) - Instructables
ATtiny85 Guide: Pinout, Features and Configuring Digispark - NerdyTechy
ATtiny85 Microcontroller tutorial: GPIO as output - Gadgetronicx
Technoblogy - Getting Extra Pins on ATtiny
Getting More I/O Pins on ATTiny With Shift Registers : 6 Steps (with Pictures) - Instructables
Technoblogy - Getting Extra Pins on ATtiny
ATtiny Introduction
ATtiny85: Complete Beginner's Guide(Pinout and Specs)
Getting More I/O Pins on ATTiny With Shift Registers : 6 Steps (with Pictures) - Instructables
Pin Change Interrupts on ATtiny85 – The Wandering Engineer
Pin names on the ATtiny85 - Microcontrollers - Arduino Forum
Technoblogy - Getting Extra Pins on ATtiny
ATtiny85: Complete Beginner's Guide(Pinout and Specs)
Programming The ATtiny85 - DIYODE Magazine
ATtiny85 GPIO input tutorial - Gadgetronicx
ATtiny85 Microcontroller Pinout, Features, Specs & Datasheet
![Useless Pin 5 in all Digispark ATtiny85 boards? [SOLVED] - Installation & Troubleshooting - Arduino Forum](https://aws1.discourse-cdn.com/arduino/optimized/4X/7/9/2/792251f6b79970904de17bc51383f200771bc306_2_500x379.png "Useless Pin 5 in all Digispark ATtiny85 boards? [SOLVED] - Installation & Troubleshooting - Arduino Forum")
Useless Pin 5 in all Digispark ATtiny85 boards? [SOLVED] - Installation & Troubleshooting - Arduino Forum
Technoblogy - Getting Extra Pins on ATtiny
87 Six, yes SIX, GPIO pins on an ATTiny85 - YouTube
ATtiny85 Microcontroller Pinout, Features, Applications and Programming
Getting More I/O Pins on ATTiny With Shift Registers : 6 Steps (with Pictures) - Instructables
microcontroller - Use the RESET PIN on Attiny85 as Input with voltage divider - Electrical Engineering Stack Exchange
