Cov txheej txheem:
Video: Niaj hnub nimno thiab Tshiab thiab Yooj Yim Piv Txwv Ntawm Cov Xauv Nrog Arduino Matrix Keypad 4x4: 3 Cov Kauj Ruam
2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:26
Lwm qhov piv txwv ntawm kev siv LCD tus lej lej lej 4x4 nrog I2C Circuit Court.
Kauj ruam 1: Schematic
Cov lej ntawm cov lej no yog ua los ntawm 16 lub khawm thiab nrog I2c kev sib txuas lus, koj tsuas yog xav tau 2 tus pin los tswj nws: SDA (A4 ntawm arduino board) thiab SCL (A5 ntawm arduino board).
Kuv siv PCF8574A 16 DIP I/O I2c Circuit me me cov phiaj xwm tau muab saum toj no. Qhov chaw nyob ntawm cov khoom no yog 0x3C hauv kuv qhov piv txwv (A0 = 0, A1 = 0, A2 = 1).
Kauj Ruam 2: Daim Duab Xeev: Txoj Hauv Kev Yooj Yim
Txoj hauv kev tshiab no yog ua raws lub sijhawm uas tso cai rau koj sau cov cai zoo (ua los ntawm 4 tus cim: CODE1 tom qab CODE2 tom qab CODE3 tom qab CODE4) ntawm cov yuam sij hauv lub sijhawm.
Daim duab arduino suav nrog 4 lub tsev qiv ntawv tshwj xeeb:
SM.h tau
Hlau.h
Keypad_I2C.h
Keypad.h
Kuv muab ib pob ntawm lawv thiab kos duab. Yog tias tus lej sau tau zoo, tus pin 13 lub teeb ON thiab koj yuav tsum thawb tus yuam sij ' *' los pib. Yog tias tus lej tsis raug, tus lej 13 nyem.
ceeb toom: Kuv tsis tuaj yeem rub tawm hnub no lub tsev qiv ntawv vim muaj lub server yuam kev sab hauv. Thov txim.
Teeb meem daws tau yog tias koj siv. RAR
Kauj Ruam 3: Xaus
Cov yuam sij thawb yuav tsum raug kuaj ntawm ntug kev nce, tshwj tsis yog, nws yuav tsis ua haujlwm zoo.
Tag nrho cov khoom siv no pheej yig heev thiab koj yuav muaj cov keyboard ntxim nyiam heev nrog ob peb tus pin ntawm Arduino cov laug cam.
Ua tsaug rau txhua qhov kev qhia ua rau kuv pom.
Zoo siab qhia!
Pom zoo:
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