Kodi seveni gawo anasonyeza?

LED (kapena kuwala emitting diode) ndi diode kuwala kuti limatulutsa mphamvu ya kuwala mu mawonekedwe a "fotoni" pamene patsogolo okondera. Mu zamagetsi tikunena mnjira electroluminescence. Mtundu wa kuwala kuonekera panamveka ndi kutsogozedwa ndi mu osiyanasiyana kuchokera buluu wofiira ndipo watsimikiza ndi kawalidwe timaganiza za kuunika panamveka, womwe zimadalira zosafunika osiyanasiyana akuwonjezeka nkhani michenga yopangira zida zamagetsi pa kupanga.

LEDs ndi zinthu zambiri poyerekeza ndi mababu miyambo ndi nyali, ndipo mwina koposa iwo ndi kukula yaing'ono, durability, yosiyanasiyana, mtengo wotsika ndi kupezeka mosavuta, luso mosavuta kucheza ndi zigawo zina zosiyanasiyana pakompyuta m'madera yadigito.

Koma mwayi waukulu LEDs ndi chifukwa kukula yaing'ono, ena a iwo akhoza anaikira mu nyumba limodzi yaying'ono, kupanga otchedwa seveni gawo kudzionetsera.

Zisanu ndi gawo anasonyeza tichipeza LEDs zisanu ndi ziwiri (choncho dzina), kopita rectangle, monga tikuonera maonekedwe. Aliyense wa gawo asanu anatsogolera akutchedwa, kuyambira chiwalitsiro cha gawo la ndipamene manambala gawo (12 decimal kapena hexadecimal dongosolo chiwerengero). Nthawi zina mu phukusi yomweyo ntchito 8 zina kutsogoleredwa. Ali kusonyeza decimal mfundo (DP), kusonyeza kusonyeza nusu decimal, ngati awiri kapena kuposa wa 7-gawo kusonyezedwa olumikizidwa pamodzi kuimira manambala zoposa khumi.

Aliyense wa gawo asanu anasonyeza chikugwirizana ndi ziwalo mzere pokhudzana PAD oyenerera mwachindunji pa amakona anayi pulasitiki chizindikiro nyumba LED. ojambula LED oyambitsa Tags kuchokera kwa ga, woimira lililonse gawo payekha. anzanu ena a zigawo LED olumikizidwa pamodzi ndi kupanga linanena bungwe wamba.

Choncho, kukondera patsogolo umaperekedwa kwa ojambula yoyenera LED zigawo mu dongosolo makamaka, adzachititsa ena a zigawo ndi kuyatsa, ndi ena adzakhalabe unadetsedwa, wakupatsani kuunikila khalidwe Napempha kwa Chinsinsi, amene idzaonetsedwa pachionetsero cha. Zimenezi zimatithandiza kuimira aliyense wa manambala khumi decimal 0 kudzera 9, 7 gawo kudzionetsera.

Mapeto ambiri amagwiritsidwa ntchito kudziwa mtundu wa 7-gawo kudzionetsera. Aliyense chophimba LED ali zolumikizira linanena bungwe awiri, mmodzi amene akutchedwa "anode" ndi zina, motero, amatchedwa "cathode". Choncho, seveni gawo LED chizindikiro mwina mitundu iwiri ya ntchito yoyang'anira dera - wamba cathode (QA) ndi anode wamba (o).

Kusiyana awa mitundu iwiri ya kusonyezedwa ndi mamangidwe ake a OC cathodes onse 7 zigawo zimakhala zokhudza wina ndi mzake, ndipo mu dera ndi chimodzi (o) chikugwirizana pakati pa anode wa anodes 7 zigawo. Onse madera ntchito motere.

• The cathode wamba (QA) - cholukanalukana cathodes a zigawo zonse LED ali ndi mfundo mlingo "0" kapena kugwiritsa GND. The zigawo munthu amalembedwa anode azipeza linanena bungwe mbendera za "mkulu" mfundo msinkhu kapena mfundo "1" kupyolera resistor Kuchepetsa kulenga kutsogolo kukondera wa LEDs payekha.
• Common anode (o) - anodes zigawo zonse LED amaphatikizidwa ndi mlingo mfundo "1". zigawo aliyense kuwala chizindikiro aliyense pawiri payekha cathode kuuluka lomveka "0" kapena otsika kalasi chizindikiro kupyolera lolingana panopa Kuchepetsa resistor.

Ambiri, seveni gawo LEDs ndi anode zofanana wotchuka kwambiri chifukwa ambiri mfundo madera kungafune kwambiri panopa kuposa akutha kupereka mphamvu gwero. Komanso dziwani kuti anasonyeza wamba cathode si mwachindunji m'malo dera tionetse ndi anode wamba. Ndipo mosemphanitsa - izi ndi ofanana ndi kulolerana wa LEDs motsogozedwa n'zosiyana, ndipo motero, umuna kuwala zimachokeradi.

Ngakhale angathe kuchizidwa monga kuwonetsera limodzi, ndi 7-gawo anasonyeza lapangidwabe ndi LEDs asanu munthu mu phukusi limodzi, ndipo zimenezi ndi LEDs ayenera kutetezedwa overcurrent. LEDs zimatulutsa kuwala pokhapokha ngati osamukira mu njira patsogolo, ndipo chiwerengero cha kuwala panamveka ndi njila kwa panopa mwachindunji. Izo zimangotanthauza kuti LED mwamphamvu kuwala kumawonjezera pafupifupi linearly ndi kuwonjezeka panopa. Choncho, pofuna kupewa kuwonongeka kwa anawatsogolera, izi panopa mwachindunji ziyenera kulamulidwa ndi zochepa kuti mtengo abwino kunja Kuchepetsa resistor.

Asanu ndi awiri awa kusonyezedwa gawo otchedwa malo amodzi. A sangathe kwambiri ndi kuchuluka kwa zikhomo mu phukusi. Kugonjetsa malire imeneyi imagwira ntchito zazikulu ulamuliro chiwembu asanu gawo kudzionetsera.

Zisanu ndi gawo chizindikiro zinatchuka kwambiri pakati Amateurs wailesi, chifukwa ndi yabwino ntchito ndi zovuta kumvetsa.