fratello Posted June 25, 2020 Share Posted June 25, 2020 Va salut ! Am luat de la prietenii incoronati un display (4x) MAX7219, in scopul realizarii unui ceas cu Arduino si DS3231. Am gasit ceva scheme pe net : -https://arduinoplus.ru/arduino-elektronnie-chasi/ -https://vk.com/@club_arduino-chasy-na-arduino-nano-i-svetodiodnyh-matricah-4x64-led-matri -https://www.instructables.com/id/Arduino-Matrix-Clock-1/ Nu stiu pe care sa-l pun in practica ... am vazut in pagina Aliexpress a lui MAX7219 o poza cu un ceas pe care mi-ar placea sa-l fac : - Aveti cumva idee unde as putea gasi schema + softul pentru acest model de ceas ? Poate l-ati vazut pe undeva, din intamplare ... Multumesc anticipat ! Quote Link to comment Share on other sites More sharing options...
nico_2010 Posted June 26, 2020 Share Posted June 26, 2020 Salut, ai putea folosi ce este in primul link si sa modifici fontul pentru led. E doar o idee. Quote Link to comment Share on other sites More sharing options...
Florian Ciobanu Posted June 26, 2020 Share Posted June 26, 2020 ceva asemanator am facut cu un pic si aceleasi matrice si DS , e pe aici pe forum Quote Link to comment Share on other sites More sharing options...
val Posted June 26, 2020 Share Posted June 26, 2020 Da, aveți dreptate: Este preferatul meu in detrimentul unui proiect ukrainian cu m8, rtc și 2 x ds1820; daca doriți pot posta link. Quote Link to comment Share on other sites More sharing options...
Florian Ciobanu Posted June 26, 2020 Share Posted June 26, 2020 e super , usor de facut , acum trebuie sa adaptez niste matrici de 61x61mm , sa fie mai mare Quote Link to comment Share on other sites More sharing options...
fratello Posted June 26, 2020 Author Share Posted June 26, 2020 Imi place ideea ! Multumesc. "Ma mut" in acel topic . Quote Link to comment Share on other sites More sharing options...
RealAlex Posted June 27, 2020 Share Posted June 27, 2020 Nu stiu de ce te complici cu pic ul acela care n are nici ldr. Uite la niq_ro un ceas care le are pe toate ( regleaza ora automat, date meteo, reglajul automat al intensitatii luminoase, animatii ...). Quote Link to comment Share on other sites More sharing options...
fratello Posted June 27, 2020 Author Share Posted June 27, 2020 Multumesc pentru sugestie. Dar nu vreau decat un ceas ... Nu ma intereseaza temperatura, umiditatea, prognoza ... Quote Link to comment Share on other sites More sharing options...
Florian Ciobanu Posted June 27, 2020 Share Posted June 27, 2020 si ceasul facut dupa topical celalalt afisaza temperature , are alarma , mai multe trepte de iluminare, Quote Link to comment Share on other sites More sharing options...
fratello Posted June 30, 2020 Author Share Posted June 30, 2020 ...matricea mea cred ca are o problema ! Am incercat toate tutorialele gasite PE NET (Hello World, MERT, etc, etc) cu Arduino Uno si Arduino Nano si nu am obtinut decat matrice stinsa sau matrice aprinsa complet !!! Uneori doar cate o matrice din cele 4 aprinsa ....In niciun caz ceva lizibil. Cum as putea verifica daca este OK matricea ??? Multumesc. Quote Link to comment Share on other sites More sharing options...
nico_2010 Posted July 1, 2020 Share Posted July 1, 2020 Incearca cu biblioteca MaxMatrix de aici: https://github.com/riyas-org/max7219 si cu primul sketch de aici: https://howtomechatronics.com/tutorials/arduino/8x8-led-matrix-max7219-tutorial-scrolling-text-android-control-via-bluetooth/ Nu cred ca ai probleme cu matricea, ci mai degraba cu modul de comunicatie cu ea. Ai un analizor logic? Daca da, atunci poti verifica ce se transmite pe SPI si te poti lamuri mai bine. Quote Link to comment Share on other sites More sharing options...
fratello Posted July 1, 2020 Author Share Posted July 1, 2020 Multumesc ! Quote Link to comment Share on other sites More sharing options...
fratello Posted July 1, 2020 Author Share Posted July 1, 2020 Am separat cele 4 module ale matricei. Am lipit conectori pentru fiecare. Am incarcat in Arduino UNO primul sketch .... Din pacate niciun display nu se aprinde corespunzator. Doua se aprind complet si asa raman ; doua nu se aprind deloc. Probabil am nimerit eu o matrice defecta :( Este improbabil sa o fi defectat eu...dat fiind ca nu am facut "experimente" deosebite cu ea ; doar sketchuri testate. Quote Link to comment Share on other sites More sharing options...
nico_2010 Posted July 1, 2020 Share Posted July 1, 2020 Poti sa vezi daca se transmite ceva pe SPI? Cu un osciloscop? Quote Link to comment Share on other sites More sharing options...
fratello Posted July 1, 2020 Author Share Posted July 1, 2020 Pe pinul 12 (DataIn) e ceva de genul : Quote Link to comment Share on other sites More sharing options...
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