GitHub

analogRead within an ISR causes "Interrupt wdt timeout on CPU1"

The below minimal sketch crashes with the same error that I encountered in one of my projects. I have confirmed this crash does not exist when the code is compiled ...
GitHub

analogRead() should be able to map inputs 0-to-x as A0-to-Ax

This is usually done by simply checking the range of the input argument, so in the case of the Uno the analogRead() function would have something along the lines of ...
note

【応用】AD変換で電圧を測ってみよう #10

今回は、Arduino UNO R4を使ってAD変換をする方法をご紹介します。 アナログ入力電圧をデジタル値に変換し、そのデジタル値から電圧に換算することで、入力電圧を推定できます。 Arduino UNOは電源電圧の5Vまでをアナログ端子に入力できます。 Arduinoは10ビット ...
Hackaday

Your Arduino SAMD21 ADC Is Lying To You

One of the great things about the Arduino environment is that it covers a wide variety of hardware with a common interface. Importantly, this isn’t just about language, but also about abstracting away ...