crisstel.ro Encoder rotativ și Arduino Despre encodere rotative Encoderul este un dispozitiv electro-mecanic care converteste pozitia unghiulară sau mișcarea unui arbore într-un semnal analogic sau digital Exista două tipuri de configurații mecanice pentru encodere optice: encodere rotative si encodere liniare Encoderele rotative optice sunt cel mai frecvent întâlnite în diverse sisteme de control în timp ce encoderele liniare sunt utilizate în special pentru aplicații de poziționare liniară encoderul este folosit pentru a măsura cu precizie rotația motoarelor (viteza nr. de pași) dar este utilizat și ca buton care se poate roti la infinit (fără cap de cursa ca la potențiometru) Exista concedere echipate cu buton care se acționează atunci când apeși pe axul encoderului un player MP3 poate fi echipat cu un encoder rotativ având un buton în centru Atunci când rotești encoderul poți schimba melodia sau volumul iar atunci când apeși butonul central (axul encoderului) poți opri/porni melodia Acesta este avantajul unui encoder în comparație cu un potențiometru dar este necesară memorarea numărului de pași pentru a cunoaște exact poziția Majoritatea encoderelor utilizează 3 pini unul se conectează la GND iar ceilalți 2 la pinii plăcii Arduino sau orice alt microcontroler analizând combinațiile de stări placa Arduino detectează direcția de rotație și numărul de pași parcurși de encoder

Encoder rotativ și Arduino

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Despre encodere rotative

Encoderul este un dispozitiv electro-mecanic care converteste pozitia unghiulară sau mișcarea unui arbore într-un semnal analogic sau digital.

Exista două tipuri de configurații mecanice pentru encodere optice: encodere rotative si encodere liniare. Encoderele rotative optice sunt cel mai frecvent întâlnite în diverse sisteme de control în timp ce encoderele liniare sunt utilizate în special pentru aplicații de poziționare liniară.

Encoderele rotative Arduino absolut Sketch-ul Arduino serial monitor

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Encoderele rotative Arduino absolut Sketch-ul Arduino serial monitor

Cu alte cuvinte, encoderul este folosit pentru a măsura cu precizie rotația motoarelor (viteza, nr. de pași) dar este utilizat și ca buton care se poate roti la infinit (fără cap de cursa ca la potențiometru).

Exista concedere echipate cu buton care se acționează atunci când apeși pe axul encoderului. Spre exemplu, un player MP3 poate fi echipat cu un encoder rotativ având un buton în centru.

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Atunci când rotești encoderul poți schimba melodia sau volumul iar atunci când apeși butonul central (axul encoderului) poți opri/porni melodia.

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Encoderele sunt caracterizate în special de rezoluție. Aceasta variază intre 16 și 1024 de pași. Encoderele rotative se rotesc la infinit deoarece nu au capăt de cursă.

Acesta este avantajul unui encoder în comparație cu un potențiometru dar este necesară memorarea numărului de pași pentru a cunoaște exact poziția.

Sketch-ul încarcă placa Arduino valorile se citesc în Monitorului Serial

Cum se conectează un encoder ?

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Majoritatea encoderelor utilizează 3 pini, unul se conectează la GND iar ceilalți 2 la pinii plăcii Arduino sau orice alt microcontroler.

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Fiindcă folosești doar 2 pini conectați la placa, vei obține în total 4 combinații de stări și anume: 00, 01, 10, 11.

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Sketch-ul Arduino monitorizează cele 4 combinații de stări ținând cont de direcția de rotație și de numărul de pași efectuați. Cu alte cuvinte, analizând combinațiile de stări placa Arduino detectează direcția de rotație și numărul de pași parcurși de encoder. La prima vedere programul pare ușor de implementat dar este necesara utilizarea sistemului de întreruperi.

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Sketch-ul Arduino

Codul listat mai jos printeaza prin Monitorul Serial numărul de pași efectuați de encoder. Codul se încarcă în placa Arduino și valorile se pot observa prin Monitorul Serial, linia Serial.println(encoderValue)….

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Encoder rotativ și Arduino

  • encoder rotativ Arduino montaje electroniceEncoderul este un dispozitiv electro-mecanic care converteste pozitia unghiulara sau miscarea unui arbore intr-un semnal analogic sau digital. Exista doua tipuri de configuratii mecanice pentru encodere optice: encodere rotative si encodere liniare. Encoderele rotative optice sunt cel mai frecvent intalnite in diverse sisteme de control in timp ce encoderele liniare sunt utilizate in special pentru aplicatii de pozitionare liniara. Cu alte cuvinte, encoderul este folosit pentru a masura cu precizie rotatia motoarelor (viteza, nr. de pasi) dar este utilizat si ca buton care se poate roti la infinit (fara cap de cursa ca la potentiometru). Exista encodere echipate cu buton care se actioneaza atunci cand apesi pe axul encoderului. Spre exemplu, un player MP3 poate fi echipat cu un encoder rotativ avand un buton in centru. Atunci cand rotesti encoderul poti schimba melodia sau volumul iar atunci cand apesi butonul central (axul encoderului) poti opri/porni melodia. Encoderele sunt caracterizate in special de rezolutie. Aceasta variaza intre 16 si 1024 de pasi. Encoderele rotative se rotesc la infinit deoarece nu au capat de cursa. Acesta este avantajul unui encoder in comparatie cu un potentiometru dar este necesara memorarea numarului de pasi pentru a cunoaste exact pozitia. Cum se conecteaza un encoder ? Majoritatea encoderelor utilizeaza 3 pini, unul se conecteaza la GND iar ceilalti 2 la pinii placii Arduino sau orice alt microcontroller. Fiindca folosesti doar 2 pini conectati la placa, vei obtine in total 4 combinatii de stari si anume: 00, 01, 10, 11. Sketch-ul Arduino monitorizeaza cele 4 combinatii de stari tinand cont de directia de rotatie si de numarul de pasi efectuati. Cu alte cuvinte, analizand combinatiile de stari placa Arduino detecteaza directia de rotatie si numarul de pasi parcursi de encoder. La prima vedere programul pare usor de implementat dar este necesara utilizarea sistemului de intreruperi. Sketch-ul Arduino Codul listat mai jos printeaza prin Monitorul Serial numarul de pasi efectuati de encoder. Codul se incarca in placa Arduino si valorile se pot observa prin Monitorul Serial, linia Serial.println(encoderValue). Encoderul este un dispozitiv electro-mecanic care converteste pozitia unghiulara sau miscarea unui arbore intr-un semnal analogic sau digital. Exista doua tipuri de configuratii mecanice pentru encodere optice: encodere rotative si encodere liniare. Encoderele rotative optice sunt cel mai frecvent intalnite in diverse sisteme de control in timp ce encoderele liniare sunt utilizate in special pentru aplicatii de pozitionare liniara. Cu alte cuvinte, encoderul este folosit pentru a masura cu precizie rotatia motoarelor (viteza, nr. de pasi) dar este utilizat si ca buton care se poate roti la infinit (fara cap de cursa ca la potentiometru). Exista encodere echipate cu buton care se actioneaza atunci cand apesi pe axul encoderului. Spre exemplu, un player MP3 poate fi echipat cu un encoder rotativ avand un buton in centru. Atunci cand rotesti encoderul poti schimba melodia sau volumul iar atunci cand apesi butonul central (axul encoderului) poti opri/porni melodia. Encoderele sunt caracterizate in special de rezolutie. Aceasta variaza intre 16 si 1024 de pasi. Encoderele rotative se rotesc la infinit deoarece nu au capat de cursa. Acesta este avantajul unui encoder in comparatie cu un potentiometru dar este necesara memorarea numarului de pasi pentru a cunoaste exact pozitia. Cum se conecteaza un encoder ? Majoritatea encoderelor utilizeaza 3 pini, unul se conecteaza la GND iar ceilalti 2 la pinii placii Arduino sau orice alt microcontroller. Fiindca folosesti doar 2 pini conectati la placa, vei obtine in total 4 combinatii de stari si anume: 00, 01, 10, 11. Sketch-ul Arduino monitorizeaza cele 4 combinatii de stari tinand cont de directia de rotatie si de numarul de pasi efectuati. Cu alte cuvinte, analizand combinatiile de stari placa Arduino detecteaza directia de rotatie si numarul de pasi parcursi de encoder. La prima vedere programul pare usor de implementat dar este necesara utilizarea sistemului de intreruperi. Sketch-ul Arduino Codul listat mai jos printeaza prin Monitorul Serial numarul de pasi efectuati de encoder. Codul se incarca in placa Arduino si valorile se pot observa prin Monitorul Serial, linia Serial.println(encoderValue). Encoderul este un dispozitiv electro-mecanic care converteste pozitia unghiulara sau miscarea unui arbore intr-un semnal analogic sau digital. Exista doua tipuri de configuratii mecanice pentru encodere optice: encodere rotative si encodere liniare. Encoderele rotative optice sunt cel mai frecvent intalnite in diverse sisteme de control in timp ce encoderele liniare sunt utilizate in special pentru aplicatii de pozitionare liniara. Cu alte cuvinte, encoderul este folosit pentru a masura cu precizie rotatia motoarelor (viteza, nr. de pasi) dar este utilizat si ca buton care se poate roti la infinit (fara cap de cursa ca la potentiometru). Exista encodere echipate cu buton care se actioneaza atunci cand apesi pe axul encoderului. Spre exemplu, un player MP3 poate fi echipat cu un encoder rotativ avand un buton in centru. Atunci cand rotesti encoderul poti schimba melodia sau volumul iar atunci cand apesi butonul central (axul encoderului) poti opri/porni melodia. Encoderele sunt caracterizate in special de rezolutie. Aceasta variaza intre 16 si 1024 de pasi. Encoderele rotative se rotesc la infinit deoarece nu au capat de cursa. Acesta este avantajul unui encoder in comparatie cu un potentiometru dar este necesara memorarea numarului de pasi pentru a cunoaste exact pozitia. Cum se conecteaza un encoder ? Majoritatea encoderelor utilizeaza 3 pini, unul se conecteaza la GND iar ceilalti 2 la pinii placii Arduino sau orice alt microcontroller. Fiindca folosesti doar 2 pini conectati la placa, vei obtine in total 4 combinatii de stari si anume: 00, 01, 10, 11. Sketch-ul Arduino monitorizeaza cele 4 combinatii de stari tinand cont de directia de rotatie si de numarul de pasi efectuati. Cu alte cuvinte, analizand combinatiile de stari placa Arduino detecteaza directia de rotatie si numarul de pasi parcursi de encoder. La prima vedere programul pare usor de implementat dar este necesara utilizarea sistemului de intreruperi. Sketch-ul Arduino Codul listat mai jos printeaza prin Monitorul Serial numarul de pasi efectuati de encoder. Codul se incarca in placa Arduino si valorile se pot observa prin Monitorul Serial, linia Serial.println(encoderValue).

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  • We’re sending Raspberry Pi computers to space for the European Astro Pi Challenge
    by Olympia Brown (Raspberry Pi Blog – Raspberry Pi) on 13 September 2021

    We’re super excited to announce that the European Astro Pi Challenge is back for another year of amazing space-based coding adventures. This time we are delighted to tell you that we’re upgrading the Raspberry Pi computers on the International Space Station (ISS) and adding new hardware to expand the range of experiments that young people… The post We’re sending Raspberry Pi computers to space for the European Astro Pi Challenge appeared first on Raspberry Pi.

  • Save orchards from pests with Raspberry Pi
    by Ashley Whittaker (Raspberry Pi Blog – Raspberry Pi) on 10 September 2021

    Researchers from the University of Trento have developed a Raspberry Pi-powered device that automatically detects pests in fruit orchards so they can get sorted out before they ruin a huge amount of crop. There’s no need for farmer intervention either, saving their time as well as their harvest. The researchers devised an embedded system that… The post Save orchards from pests with Raspberry Pi appeared first on Raspberry Pi.

  • Remembering Intel 740 | Custom PC #218
    by Ben Hardwidge (Raspberry Pi Blog – Raspberry Pi) on 9 September 2021

    With Intel attempting to get into 3D gaming graphics again, Custom PC’s Ben Hardwidge looks at the time it failed to take on 3dfx in the late 1990s. Back in the late 1990s, I worked at a computer shop in Derby, where we sold components over the counter, while pointing to a sign that said ‘components… The post Remembering Intel 740 | Custom PC #218 appeared first on Raspberry Pi.

  • Zippy the Raspberry Pi Zero-powered mini Mars Rover
    by Ashley Whittaker (Raspberry Pi Blog – Raspberry Pi) on 8 September 2021

    Maker Mellow was inspired by watching the progress of NASA’s Perseverance Mars rover and wanted in on the interplanetary robot scene. Their first idea was to build a scale version of Perseverance, but when their partner stepped in to suggest that starting smaller might be a little easier, Zippy was born. Hardware Raspberry Pi Zero… The post Zippy the Raspberry Pi Zero-powered mini Mars Rover appeared first on Raspberry Pi.

  • Raspberry Pi displays album art on LED matrix
    by Ashley Whittaker (Raspberry Pi Blog – Raspberry Pi) on 7 September 2021

    We’ve seen a few innovative album art displays using Raspberry Pi, from LEGO minifigures playing their own music to this NFC-powered record player. Maker Kyle Johnson was looking for a fun project combining Raspberry Pi and Adafruit’s LED matrix, and has created the latest cool album art display to grace our blog. Hardware Raspberry Pi… The post Raspberry Pi displays album art on LED matrix appeared first on Raspberry Pi.

  • Meet Geeky Faye: maker, artist, designer, and filmmaker
    by Rob Zwetsloot (Raspberry Pi Blog – Raspberry Pi) on 6 September 2021

    An artist and maker, Geeky Faye describes themself as a one-man band, tackling whole areas of creation. In the latest issue of The MagPi Magazine, Rob Zwetsloot meets the cosplaying polymath. Having multiple hobbies and interests can be fun, but they can sometimes get on top of you. Allie, also known online as Geeky Faye,… The post Meet Geeky Faye: maker, artist, designer, and filmmaker appeared first on Raspberry Pi.

  • Pi Pico Pinout and Power Pins
    by Matt (Raspberry Pi Spy) on 24 January 2021

    Understanding the Pi Pico Pinout is vital to getting the best out of Pi Pico. The Raspberry Pi Pico is a microcontroller board that makes use of the RP2040 chip developed by the designers of the Raspberry Pi. The Pico can accept 0.1″ pin-headers which can be soldered to the board as required. Pi Pico [...] The post Pi Pico Pinout and Power Pins appeared first on Raspberry Pi Spy.

  • Install Arduino IDE on Raspberry Pi
    by Matt (Raspberry Pi Spy) on 28 December 2020

    The Arduino IDE is a vital tool for flashing Arduino devices. You can install Arduino IDE on Raspberry Pi OS using these easy steps. You could use apt: but this results in the installation of Arduino IDE version 1.6. This is an extremely outdated version which makes it difficult to use or impossible to flash [...] The post Install Arduino IDE on Raspberry Pi appeared first on Raspberry Pi Spy.