Cov txheej txheem:
- Khoom siv
- Kauj ruam 1: Intro
- Kauj Ruam 2: Daim duab Circuit Court
- Kauj Ruam 3: I2C Ua Haujlwm Li Cas?
Video: Siv Grove LCD Nrog RGB Backlight: 4 Kauj Ruam
2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:26
Los ntawm chauhannaman98Follow Ntxiv los ntawm tus sau:
Txhawm rau tsim kom muaj kev sib txuas lus zoo ntawm tib neeg ntiaj teb thiab lub ntiaj teb tshuab, cov khoom siv ua lub luag haujlwm tseem ceeb. Thiab yog li lawv yog ib feem tseem ceeb ntawm cov kab ke. Cov chav tso saib - loj lossis me, ua haujlwm tib lub hauv paus ntsiab lus. Dhau li ntawm cov khoom nyuaj xws li cov duab qhia thiab cov duab 3D, ib tus yuav tsum paub ua haujlwm nrog cov lus yooj yim zoo li 16x1 thiab 16x2 units. Chav tsev 16x1 yuav muaj 16 tus cim thiab nyob hauv ib kab. 16x2 LCD yuav muaj 32 tus cim hauv tag nrho 16 hauv kab thib ib thiab lwm 16 hauv kab thib ob. Ntawm no ib tus yuav tsum nkag siab tias hauv txhua tus cim muaj 5x10 = 50 pixels yog li tso saib ib tus cim txhua 50 pixels yuav tsum ua haujlwm ua ke.
Khoom siv
Pom Studio - Grove RGB LCD
Kauj ruam 1: Intro
Dhau li ntawm cov khoom nyuaj xws li cov duab qhia thiab cov duab 3D, ib tus yuav tsum paub ua haujlwm nrog cov lus yooj yim zoo li 16x1 thiab 16x2 units. Chav tsev 16x1 yuav muaj 16 tus cim thiab nyob hauv ib kab. 16x2 LCD yuav muaj 32 tus cim hauv tag nrho 16 hauv kab thib ib thiab lwm 16 hauv kab thib ob. Ntawm no ib tus yuav tsum nkag siab tias hauv txhua tus cim muaj 5x10 = 50 pixels yog li tso saib ib tus cim txhua 50 pixels yuav tsum ua haujlwm ua ke.
Grove - LCD RGB Backlight yog xim puv xim 16x2 LCD. Kev sib piv siab thiab siv tau yooj yim ua rau nws zoo meej I2C LCD zaub rau Arduino thiab Raspberry Pi.
Kauj Ruam 2: Daim duab Circuit Court
Tsis zoo li lwm 16x2 LCDs, Grove LCD ua haujlwm ntawm I2C kev sib txuas. Qhov no daws qhov teeb meem ntawm kev txuas lub vijtsam nrog Arduino lossis Raspberry Pi. Nrog rau VCC thiab GND kab, lub LCD no tsuas yog xav tau SDA (Cov Ntaub Ntawv Teev Npe) thiab SCL (Serial Clock). Nws txhais tau tias peb tsuas xav tau 4 xov hlau los ua qhov LCD no ua haujlwm ntau dua li 14 tus pin ntawm lwm lub LCDs.
Kauj Ruam 3: I2C Ua Haujlwm Li Cas?
Nov yog cov lus piav qhia ntxaws rau tib yam:
- SDA (SerialData) - Kab rau tus tswv thiab qhev xa thiab txais cov ntaub ntawv.
- SCL (Serial Clock) - Kab uas nqa lub moos teeb liab.
I2C yog cov txheej txheem sib txuas lus sib txuas, yog li cov ntaub ntawv tau hloov pauv me ntsis los ntawm ib tus xaim (kab SDA). Zoo li SPI, I2C yog synchronous, yog li cov khoom ntawm cov khoom sib txuas ua ke mus rau qhov piv txwv ntawm cov khoom los ntawm lub moos teeb liab qhia tawm ntawm tus tswv thiab tus qhev. Lub moos teeb liab ib txwm tswj los ntawm tus tswv.
Koj tuaj yeem kawm paub ntau ntxiv txog I2C cov txheej txheem kev sib txuas lus ntawm no. Tam sim no, yog tias koj xav tsim qhov haujlwm uas koj xav tau los siv cov haujlwm tshwj xeeb, koj tuaj yeem ua qhov no yooj yim los ntawm kev ua piv txwv los ntawm cov chaw cia khoom hauv cov ntawv txuas.
Pom zoo:
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Yuav Kho Li Cas LCD Backlight Power Inverter. Siv Fujiplus FP-988D. rau $ 0: Hauv qhov kev qhia no kuv yuav taug kev koj los ntawm kev kho lub lcd tuag rov qab lub teeb hluav taws xob inverter siv cov khoom koj muaj. Koj tuaj yeem qhia yog tias koj muaj lub teeb rov qab tuag los ntawm thawj qhov tshem tawm lwm txoj hauv kev. Txheeb xyuas ntawm ntau lub khoos phis tawj. Ua kom ntseeg tau tias