Arduino Mega: duk game da babban kwamitin ci gaba

Mega Arduino

Idan farantin Arduino UNO Saukewa: 3 ya yi muku ƙanƙan kuma kuna son ƙirƙirar ayyukan ci gaba da more rayuwa da ƙarfi, to abin da kuke nema shine kwamiti Mega Arduino, wani samfurin samfurin da masu haɓakawa iri ɗaya suka ƙirƙira a matsayin kwamiti na asali, amma an sanye shi da microcontroller mai sauri, ƙarin ƙwaƙwalwar ajiya, da ƙarin fil don shirin.

Arduino Mega yana da kamanceceniya da yawa ga Arduino UNO, amma akwai wasu bambance-bambance da suka sa ya zama na musamman ga kowa masu yin neman ƙarin abu. Gabaɗaya, idan kuna farawa ba shine mafi kyawun zaɓi ba, amma idan kun riga kunyi amfani da damar UNO kuma kuna son ci gaba.

Menene Arduino Mega?

Alamar Arduino

Mega Arduino Wani kwamiti ne na ci gaban hukuma wanda ya dogara da Atmel ATmega2560 microcontroller, saboda haka sunansa. Bugu da kari, ya hada da shigarwar dijital 54 da kuma fil na fitarwa, wanda za a iya amfani da 15 azaman Sakamakon PWM. Hakanan yana da kayan aikin analog guda 16, 4 UARTs azaman tashar jiragen ruwa don kayan aiki, 16 Mhz mai haske oscillator, haɗin USB, mai haɗa wutar lantarki, kanun ICSP, da maɓallin sake saitawa.

Kamar yadda kake gani, gwadawa da Arduino UNO, yana da ƙwarewa mafi girma, wanda kuma yana haifar da haɓaka cikin farashinsa ɗauka da sauƙi. Koyaya, bashi da tsada kwata-kwata, yana buƙatar ƙarin eurosan kuɗi kaɗan kawai kuma zaku iya samun sa a cikin shagunan musamman na musamman:

Ya ƙunshi duk abin da kuke buƙata don microcontroller ɗin ku, don haka kuna da damuwa kawai game da saita aikin ku na DIY, haɗa allon ta USB zuwa kwamfutar, zazzage hoton da kuka ƙirƙira tare da Arduino IDE, da sanya shi aiki.

Ya kamata ku sani cewa, ba kamar allon baya ba, Arduino Mega baya amfani da guntun mai sarrafa FTDI USB-to-serial. Madadin haka, yi amfani da ATmega16U2 guntu a cikin sabon sake dubawa (Rev1 da Rev2 sunyi amfani da ATmega8U2). Wato, tana da mai canza mai canzawa zuwa USB-to-serial.

Wannan farantin shine manufa don ɗumbin ayyukan ci gaba, kamar yin aiki a matsayin kwakwalwa don firintocin 3D, injunan inji na CNC, da dai sauransu. Kuma suna da cikakkiyar jituwa tare da garkuwa ko garkuwar Arduino UNO, don haka zaku sami dumbin abubuwan da suka dace da kuma babbar al'umma koyaushe a shirye suke don taimakawa tambayoyinku da matsalolinku.

Kuma idan kuna so ku sani game da kayan lantarki masu jituwa da kayayyaki, a cikin wannan shafin yanar gizon akwai da yawa daga cikinsu anyi bayani mataki-mataki tare da duk abin da kuke buƙatar saka su aiki. Misali:

Cikakken bayani game da Arduino Mega

Farantin Mega Arduino yana da duk abin da zaka iya samu akan farantin Arduino Uno Rev3, amma tare da wasu ƙari waɗanda suka sa ya fi ƙarfi, kamar yadda na ambata a baya.

Halaye na fasaha, makirci da pinout

da halaye na fasaha na kwamitin Arduino Mega wanda yakamata ku sani sune:

  • Atmel ATmega2560 microcontroller a 16 Mhz
  • 256 KB ƙwaƙwalwar ajiya (8KB wanda bootloader yayi amfani dashi wanda baza'a iya amfani dashi don shirye-shiryenku ba)
  • 8 KB SRAM ƙwaƙwalwar ajiya.
  • 4 KB EEPROM ƙwaƙwalwa.
  • 5v ƙarfin lantarki
  • Input ƙarfin lantarki 7-12v
  • Iyakokin ƙarfin shigarwa: 6-20v
  • 54 fil na dijital, wanda 15 na iya zama PWM. Ana iya saita su ta lambar Arduino IDE azaman abubuwan shigarwa ko kayan aiki.
  • Alamar shigar da analog 16.
  • 4 UARTs, USB, RX da TX fil don sadarwa, da kuma TWI da SPI.
  • Pinsarfin wuta: 5v don samar da na yanzu ga ayyukan muddin ana ciyar da jirgi tare da tsakanin 7 da 12v ko ta USB 5v. Pin din 3v3 na iya bada karfin wuta na 3.3 volts. Ana iya amfani da pin na GND don ƙaddamar da ayyukanka. Yayinda lambar IOREF itace fil ɗin akan allon don bayar da ƙarfin tunani wanda microcontroller ke aiki da shi.
  • A halin yanzu na kowane pin I / O shine 40mA DC.
  • A halin yanzu da aka kawo ta pin 3v3 shine 50 mA.

Ina kuma son karawa cewa Arduino Mega yana da polyfuse mai sake sakewa don kare tashar USB ta kwamfutar da kake hada allon da ita. Ta wannan hanyar zaku kauce wa lalacewa saboda gajerun hanyoyin da ke cikin ayyukanku ko wuce gona da iri da ke iya faruwa. Wannan ƙari ne na kariya na ciki wanda wannan sigar ke aiwatarwa wanda zai shiga idan aka yi amfani da fiye da 500 MA a tashar USB, ta atomatik karya haɗin har sai an cire wannan obalodi.

Datasheets

Hakanan zaka iya sauke wani takardar fasaha ko takaddar bayanai tare da duk abin da kuke buƙatar sani game da bayanan lantarki na wannan samfurin, matsakaicin igiyoyin ruwa da ƙananan wuta da aka yarda don kar ya lalata allon, cikakke, da yawan adadin bayanan da kuke son samu. Don yin wannan, zaku iya zazzage shi daga gidan yanar gizon hukuma:

Arduino IDE da shirye-shirye

Screenshot na Arduino IDE

Don shirin Arduino Mega, da ma sauran tsarin samfuran ci gaba, kuna da abin da ake kira software IDE na Arduino. Wannan dandalin ci gaba ya dace da duka macOS, Windows da Linux. Wholeaukacin ɗakin buɗe ido kyauta wanda zaku iya fara ƙirƙirar lambobin asalinku kuma yin rikodin su akan jirgin ta amfani da kebul na USB.

Kamar yadda kuka sani, wannan shirin yana amfani da harshen shirin 'yar asali ga Arduino don babban matakin sarrafawa na tushen shirye-shiryenta. Yana da kamanceceniya da wasu yarukan, tunda ya dogara ne akan C ++, tare da tsarin daidaitawa da siffofin.

A cikin labaran wannan shafin galibi galibi muna haɗawa da ƙarshen wasu lambar ko zane zane tare da samfuran lamba don farawa tare da kowane aikin ko ɓangaren da muke gabatarwa. Don haka zaku iya fara ɗaukar matakanku na farko. Amma idan kuna son ƙarin koyo game da Arduino IDE da yadda zaku tsara ayyukanku, ina gayyatarku da zazzage kwas ɗin shirye-shiryenmu na kyauta IDE na Arduino a cikin PDF.

Kari akan haka, a matsayin kari ga ayyukan da kuka ci gaba, da alama ku ma kuna bukatar wasu manhajoji ko masarrafan da zasu taimaka muku samun komai a bayyane kuma karara don kar ayi rikici. Don haka, Hakanan zaku kasance da sha'awar sani ayyuka kamar:

  • KiCad: Yanayi ne na EDA don haɓaka lantarki wanda za'a iya yin zane-zane masu rikitarwa da fasali. Kyauta ce, buɗaɗɗiyar tushe, da kayan haɗin giciye don Linux, macOS, da Windows.
  • Faduwa: hanya ce mai buɗewa wacce take aiki da kuma software da yawa wanda zai taimaka muku ƙirƙirar ayyukan ku cikin tsari ko kuma a cikin 3D don nuna su.

Kasance na farko don yin sharhi

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