Cov txheej txheem:
- Kauj ruam 1: Dab tsi yog Analog-to-Digital Conversion
- Kauj Ruam 2: Khoom Los Yog… Tus Xeev
- Kauj Ruam 3: Hloov Los Ntawm Qhov Hluav Taws Xob mus rau ADC Tso Tawm thiab Lwm Yam-Versa
- Kauj Ruam 4: Nkag Siab Accelerometers
- Kauj Ruam 5: Accelerometer Top-Side Up
- Kauj Ruam 6: Accelerometer Qab-Sab Saum
- Kauj Ruam 7: Ua kom tiav
Video: Kev qhia txog kev hloov pauv mus rau lwm tus: 7 Cov Kauj Ruam
2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:28
Nyob zoo cov phooj ywg, Kuv yog tus pab qhia rau kev qhia rau chav kawm engineering rau kev kawm txuj ci tsim txuj ci tseem ceeb hauv Vanderbilt University lub semester no. Kuv tsim daim vis dis aus no los piav qhia txog kev hloov pauv mus rau digital rau lawv vim tias lub sij hawm tau khiav tawm hauv chav kawm thiab kuv tsis tau mus txog qhov no hauv kev qhuab qhia. Kuv tau hla Hla Qhia Nws! Qhia kev sib tw thiab xav yog tias kuv twb tau tsim cov vis dis aus, vim li cas ho tsis nkag mus rau hauv kev sib tw, yog li ntawm no mus.
Cov vis dis aus muab cov lus qhia yooj yim rau kev hloov pauv mus rau analog-rau-digital thiab tom qab ntawd piav qhia qhov no cuam tshuam li cas rau kev nyeem cov ntaub ntawv los ntawm tus ntsuas hluav taws xob siv Arduino. Rau cov ntawm koj uas tsis paub, raws li lub npe qhia, tus ntsuas hluav taws xob ntsuas lub zog nqus ntawm lub cuab yeej. Qhov tshwj xeeb tshaj yog cov ntsuas ntsuas ntsuas nrawm hauv x, y, thiab z axis. Tus ntsuas ntsuas kuv siv nyob rau hauv qhov kev qhia yog MMA7361 thiab cov ntawv tuaj yeem pom hauv online. Cov ntawv yuav muab ntau qhov tob ntawm cov ntaub ntawv ntawm tus ntsuas tus kheej. Yog tias koj tshawb nrhiav "MMA7361 filetype: pdf" hauv Google, nws yuav tsum tshwm rau sab xis. Nws kuj tseem txuas nrog hauv Cov Lus Qhia no. Yog tias koj tsis tau siv los nyeem cov ntawv teev tseg, nws yuav yog kev hem me ntsis. Thov koj xav nug yog tias koj muaj lus nug. Ib qho ntxiv, tus ntsuas qhov ntsuas uas kuv tab tom siv tau yuav ntawm Amazon los ntawm Virtuabotix, yog tias koj xav tau. Txawm li cas los xij, ntawm no yog kuv daim vis dis aus. Cov vis dis aus nws tus kheej txaus, tab sis kuv tau hais qhia qhov tseem ceeb ntawm nws hauv cov theem yog tias koj xav tau cov lus qhia nrawm. Kuv vam tias koj kawm qee yam los ntawm nws. Thiab yog tias koj muaj lus nug, thov hu tuaj nug.
Yog tias koj nyiam kuv Cov Lus Qhia, thov txiav txim siab pov npav rau nws hauv Cov Lus Qhia Qhia Nws! Kev sib tw.
Kauj ruam 1: Dab tsi yog Analog-to-Digital Conversion
Analog-to-digital conversion (ADC) yog txheej txheem tab tom siv lub teeb liab sib txawv thiab "digitizing" lub teeb liab kom lub khoos phis tawj tuaj yeem ua nws.
Kauj Ruam 2: Khoom Los Yog… Tus Xeev
Ib qho Arduino muaj 10-ntsis ADC, lub ntsiab lus tias qhov hluav taws xob uas Arduino tau nyeem los ntawm qee qhov ntsuas (hauv peb cov ntaub ntawv lub ntsuas yog lub ntsuas hluav taws xob) yog sawv cev los ntawm tus lej hauv thaj tsam 0-1023. Qhov siab tshaj plaws Arduino nyeem yog 5 V thiab qhov tsawg tshaj plaws yog 0 V. Cov ntsuas hluav taws xob no tau sawv cev los ntawm 1023 thiab 0 feem.
Kev sib tham ntawm cov khoom tuaj yeem nthuav dav me ntsis thiab me ntsis sab nraum qhov kev qhia no, yog li xav tias tshawb xyuas qhov no me ntsis ntxiv ntawm koj tus kheej lossis nug kuv hauv ntu lus.
Kauj Ruam 3: Hloov Los Ntawm Qhov Hluav Taws Xob mus rau ADC Tso Tawm thiab Lwm Yam-Versa
Yog tias koj tab tom nyeem qhov hluav taws xob ntawm 2.5 V, koj tuaj yeem suav Arduino's ADC cov zis los ntawm kev ua ib feem yooj yim. Feem ntau, koj tab tom nyeem qhov tsis paub qhov hluav taws xob thiab xav siv Arduino's ADC cov zis los txiav txim siab qhov hluav taws xob uas koj hnov. Cias hloov qhov feem raws li.
Kauj Ruam 4: Nkag Siab Accelerometers
Peb tuaj yeem siv Arduino kom nkag siab txog qhov hluav taws xob tso tawm los ntawm tus ntsuas hluav taws xob. Qhov hluav taws xob no sib haum rau kev nrawm.
Kauj Ruam 5: Accelerometer Top-Side Up
Yog tias peb muaj lub ntsuas qhov ntsuas sab saum toj, cov no yog cov txiaj ntsig peb tuaj yeem cia siab tias yuav tau txais los ntawm Arduino's ADC.
Thov txim kuv siv "x" raws li kuv qhov sib txawv hauv qhov piv txwv no. Peb tab tom suav qhov nrawm hauv "z-axis." Siv "x" raws li kuv qhov sib txawv yog ib tus cwj pwm. "x" yog thawj qhov sib txawv ntawm kev xaiv hauv kuv chav kawm Algebra.
Kauj Ruam 6: Accelerometer Qab-Sab Saum
Yog tias peb muaj lub ntsuas cua hauv qab-sab saum toj (z-axis nqis), cov no yog cov txiaj ntsig uas peb tuaj yeem xav tau.
Ib zaug ntxiv, peb tab tom suav nrawm hauv z-axis tsis yog "x."
Kauj Ruam 7: Ua kom tiav
Txawm li cas los xij, qhov ntawd yog nws. Kuv vam tias koj tau kawm qee yam los ntawm qhov no.
Yog tias koj nyiam kuv Cov Lus Qhia, thov txiav txim siab pov npav rau nws hauv Cov Lus Qhia Qhia Nws! Kev sib tw.
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