Tag Archives: C

Quadrature Encoders

Posted on 2022-06-30 by M. Eric Carr

Quadrature rotary encoders are inexpensive and very easy to wire up. Here’s how to use them with interrupts in Arduino C for ESP32. Continue reading →

Posted in Arduino, Building blocks, Digital, Electronics, HOW-TO, User Interface Design | Tagged Arduino, Arduino C, arduino quadrature, C, c quadrature, c quadrature encoder, encoder, ESP32, esp32 arduino, esp32 rotary encoder, quadrature, quadrature encoder, rotary encoder | Leave a comment

On Beyond Double

Posted on 2022-01-31 by M. Eric Carr

Long Double is long. 80 bits long. And it’s part of (modern) standard C! Continue reading →

Posted in C, Math | Tagged C, C language, Floating point, long double, Math | Leave a comment

Arduino On The Go

Posted on 2021-11-29 by M. Eric Carr

Modern smartphones can use USB On-The-Go for all kinds of things. Continue reading →

Posted in Android, Arduino, C, Coding, Toys | Tagged Android, Arduino, Arduino C, ArduinoDroid, C, ESP32, On-The-Go, OTG, TTGO, TTGO T-Display, usb, USB On-The-Go, USB OTG | Leave a comment

Printing Large Numbers on Arduinos

Posted on 2020-08-11 by M. Eric Carr

How to print unsigned 64-bit integers simply in Arduino C, using decimal long division. Continue reading →

Posted in Arduino, C, Coding, HOW-TO, Math | Tagged 64 bit, Arduino, Arduino C, C, long integers, long long, print long long, printing long long, uint64_t, unsigned long long | Leave a comment

Tag Archives: C

Quadrature Encoders

On Beyond Double

Arduino On The Go

Printing Large Numbers on Arduinos

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