![A method of applying a precision reference voltage to an Arduino AREF pin, without accidentally blowing up the processor – Dangerous Prototypes A method of applying a precision reference voltage to an Arduino AREF pin, without accidentally blowing up the processor – Dangerous Prototypes](http://dangerousprototypes.com/wp-content/media/2013/12/ArefProtection-600x289.jpg)
A method of applying a precision reference voltage to an Arduino AREF pin, without accidentally blowing up the processor – Dangerous Prototypes
![NANO Expansion Prototype Shield I/O Extension Board Module AREF 3.3V Output with PWM pins for Arduino Nano V3.0|Instrument Parts & Accessories| - AliExpress NANO Expansion Prototype Shield I/O Extension Board Module AREF 3.3V Output with PWM pins for Arduino Nano V3.0|Instrument Parts & Accessories| - AliExpress](https://ae01.alicdn.com/kf/H6bf866c0615e41aba9d92ce532b1ab377/NANO-Expansion-Prototype-Shield-I-O-Extension-Board-Module-AREF-3-3V-Output-with-PWM-pins.jpg_Q90.jpg_.webp)
NANO Expansion Prototype Shield I/O Extension Board Module AREF 3.3V Output with PWM pins for Arduino Nano V3.0|Instrument Parts & Accessories| - AliExpress
![Arduino Uno Board There are specific dedicated pins such as: • Ground... | Download Scientific Diagram Arduino Uno Board There are specific dedicated pins such as: • Ground... | Download Scientific Diagram](https://www.researchgate.net/profile/Gopi-Manoj-Vuyyuru-2/publication/351917963/figure/fig2/AS:1028128814145537@1622136419196/Arduino-Uno-Board-There-are-specific-dedicated-pins-such-as-Ground-GND-connection_Q640.jpg)