DIY 10Hz-50kHz Arduino Oscilloscope ntawm 128x64 LCD Zaub: 3 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:25

Txoj haujlwm no piav qhia txoj hauv kev ua kom yooj yim oscilloscope uas muaj ntau ntawm 10Hz txog 50Khz. Qhov no yog thaj tsam loj heev, muab hais tias lub cuab yeej tsis siv sab nraud digital rau analog hloov pauv nti, tab sis tsuas yog Arduino.

Kauj ruam 1: Kev piav qhia

Cov txiaj ntsig tau nthuav tawm ntawm lub vijtsam loj LCD (ST7920) nrog daws teeb meem ntawm 128x64 pixels. Qhov ntsuas ntsuas thaj tsam yog 96x64 thiab thaj chaw cov ntaub ntawv yog 32x64, qhov twg qhia qhov ntsuas qhov ntsuas zaus, Vpp thiab lwm yam.

Nws yog qhov yooj yim tshaj plaws los tsim thiab suav nrog ob peb yam xwb:

- Arduino Nano

ST7920 LCD zaub nrog 128x64 daws teeb meem

- peb lub sijhawm hloov pauv

- ob potentiomemers

- thiab ib lub capacitor 100 microF

Txoj haujlwm no tau txhawb nqa los ntawm NextPCB. Koj tuaj yeem pab txhawb kuv los ntawm kev txheeb xyuas lawv ntawm ib qho ntawm cov txuas no:

Sau npe kom tau txais $ 5 daim coupon:

Txhim khu kev qha Multilayer Boards Chaw tsim tshuaj paus:

4 Txheej PCB Txheej 10pcs tsuas yog $ 12:

10% tawm - PCB & SMT Orders: 20% OFF - PCB & 15% SMT Orders:

Kauj Ruam 2: Lub Tsev

Cov cuab yeej muaj ntau lub luag haujlwm zoo li: pib ua haujlwm (tso saib ruaj khov), Txheeb nrawm: 0.02ms/div ~ 10ms/div, raws li 1-2-5 nqa thiab faib ua cuaj qib thiab tuav haujlwm: Khaws cov duab yoj thiab tsis ua haujlwm. Txoj haujlwm no tau tshaj tawm ntawm Wu Hanqing's blog uas koj tuaj yeem pom thawj tus lej. Kuv tau hloov pauv me me vim tias kuv tau tsim lub oscilloscope raws li kho vajtse ntawm ib qho ntawm kuv cov haujlwm yav dhau los. Raws li koj tuaj yeem pom hauv daim vis dis aus, qhov ntsuas tau pom zoo heev vim yog lub vijtsam loj, thiab tseem yog qhov pib zoo uas tsis txaus ntseeg. Txoj hauj lwm ntsug ntawm daim duab raug kho nrog lub hwj chim ntawm 50 kohms, thiab sib piv nrog 10 kohms potentiometer. Kuv sim oscilloscope nrog lub sine thiab lub teeb liab lub tshuab hluav taws xob. Thaum kawg, txawm tias nws tsis yog txuj ci lossis siv tau zoo heev, nws tseem tuaj yeem siv rau lub hom phiaj kev kawm lossis hauv koj lub chaw kuaj ntshav, txhawm rau ntsuas cov cim qis zaus, tshwj xeeb tshaj yog paub tias lub cuab yeej yooj yim heev ua thiab pheej yig heev.

Kauj Ruam 3: Schematic Diagram thiab Code

Hauv qab no tau muab Shematic daim duab thiab Arduino code