Zaub Mov Cam: 18 Kauj Ruam (nrog Duab)

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:27

Txoj haujlwm no tau tshoov siab los ntawm cov phiaj xwm zaub mov ua los ntawm MIT Media Lab. Txoj haujlwm no yog ib feem ntawm kev pabcuam tsev kawm qib siab Coding For Good ntawm UWCSEA East hauv Singapore. Lub hom phiaj ntawm txoj haujlwm no yog txhawm rau txo cov zaub mov pov tseg los ntawm peb lub zej zog los ntawm kev muab tib neeg rau lwm txoj hauv kev pov tseg lawv cov zaub mov uas tsis tau muab pov tseg.

Cov phiaj xwm zaub mov tso cai rau zaub mov uas yuav tsis tas li tau muab pov tseg rau hauv qab lub koob yees duab, muaj daim duab thaij nws thiab muab tso rau Twitter rau tag nrho cov zej zog saib. Li no tso cai rau leej twg tuaj yeem ua tiav cov zaub mov dawb. Cov lus qhia no yuav coj koj mus rau peb txoj kev taug thiab tsim Food Cam hauv peb lub zej zog tsev kawm ntawv.

Kauj Ruam 1: Sau Cov Khoom Siv Hluav Taws Xob

Txhawm rau pib nrog cov khoom siv hluav taws xob ib feem ntawm txoj haujlwm, peb thawj zaug yuav tsum sau cov npe hauv qab no (feem hauv qab). Lub txhab nyiaj fais fab yog nyob ntawm yeem thiab tsuas yog tsim nyog yog tias koj xav tau lub cuab yeej no txav mus los. Hauv peb qhov xwm txheej, peb tau npaj kom muaj cov khoom nyob ruaj khov nrog txuas txuas micro-USB rau USB qaum muab lub zog rau Pi. Ib qho ntxiv, qhov tshwj xeeb ntawm lub pob tsis muaj teeb meem ntau nrog qhov tshwj xeeb ntawm lub pob yog PTM (thawb kom) hloov lossis hloov pauv ib ntus. Qhov no yuav yog qhov tseem ceeb tom qab rau kev ua haujlwm ntawm ob lub koob yees duab thiab cov cai.

Raws li rau kho vajtse, tsis txhob txhawj txog qhov ntawd rau tam sim no. Yog tias koj tab tom nrhiav kom ua tiav qhov ntawd, hla mus rau qib 11.

Nov yog yam koj yuav tsum muaj ua ntej yuav tsum tau sim ua qhov haujlwm no:

1. Kev Sib Txuas Internet Ruaj Khov

2. HDMI Cable

3. Saib xyuas

4. Nas

5. USB chaw nres nkoj

Cov Khoom Siv Hluav Taws Xob (BOM) *Soldering Iron Required:

1x Raspberry Pi 3 Qauv B.

2x LEDs (1x Liab, 1x Ntsuab)

1x Raspberry Pi Cam (V2.1)

6x Poj Niam Rau Poj Niam Hluav Taws Xob

1x Loj Liab Khawm (PTM)

2 x 470 Ohm Resistor

1x Lub txhab nyiaj fais fab (5500 mAh) (Tsis teb los tau)

1x USB rau micro-USB cable

1 x Micro SD Card

1x Micro SD Card Nyeem Ntawv

Kauj Ruam 2: Ntxig Lub Koob Yees Duab rau hauv Raspberry Pi

Ntxig cov kab hluav taws xob hloov pauv los ntawm lub koob yees duab mus rau qhov chaw nres nkoj ywj pheej ntawm Raspberry Pi pawg thawj coj. Ua qhov no nrog kev saib xyuas vim hloov cov khoom no tuaj yeem kim heev!

Kauj Ruam 3: Solder cov Resistors rau Cathode Legs ntawm Txhua LED

Yog tias koj tab tom nrhiav kom ua tiav txoj haujlwm no ntawm lub khob cij ua ntej, raws li qhia hauv daim duab saum toj sab xis, tom qab ntawd koj tuaj yeem hla cov kauj ruam no. Txawm li cas los xij, yog tias koj tab tom npaj ua kom nws nyob ruaj khov, txuas ntxiv nrog cov theem no.

Ua ntej soldering, xyuas kom koj muaj qhov teeb tsa raug. Koj yuav tsum tau ua haujlwm ntawm daim ntaub thaiv cua sov, nrog tsom iav, thiab tso cua kom zoo. Cov kauj ruam kev nyab xeeb no tseem ceeb heev txhawm rau txo qis kev pheej hmoo ntawm kev raug mob lossis puas tsuaj thaum muaj xwm txheej.

Muaj ob txoj hauv kev los ua kom cov resistors mus rau ntawm ob txhais ceg ntawm LEDs. Koj tuaj yeem xoom cov resistor ncaj qha mus rau LED lossis siv xaim txuas ob lub resistor thiab LED (qhia saum toj no). Txoj kev twg los xij uas koj xaiv mus, xyuas kom tseeb tias koj tiv thaiv koj cov xov hlau kom tsis txhob muaj qhov luv luv. Qhov no tuaj yeem pom hauv qab daim duab sab xis. Cov cathode ntawm LED yog txhais ceg luv dua.

Kauj Ruam 4: Txuas cov LEDs thiab PTM Hloov mus rau Raspberry Pi

Qhov zoo tshaj, txiv neej rau poj niam cov xov hlau yuav tsum siv kom nws yooj yim txuas cov xov hlau mus rau Raspberry Pi module. Thaum lwm tus (txiv neej) xaus ntawm cov xov hlau tuaj yeem txuas rau LEDs thiab hloov pauv. Txawm li cas los xij, yog tias txiv neej rau poj niam tsis tuaj yeem siv tau, nws tau pom zoo tias ntau cov tub ntxhais hlau tau siv hloov pauv ntawm cov tub ntxhais uas muaj zog vim qhov yoog raws thiab txo qis kev pheej hmoo ntawm pob qij txha qhuav.

Nov yog qhov yuav tsum tau muaj kev sib txuas (siv GPIO tus lej pin txuas hauv cov duab saum toj no):

• Liab LED Anode: GPIO Pin 13
• Liab LED Cathode: Txhua GND Pin
• Ntsuab LED Anode: GPIO Pin 7
• Ntsuab LED Cathode: Txhua GND Pin
• Khawm Taw 1: GPIO Pin 12
• Kauj Ruam 2: Ib qho GND Pin

Ib qho ntawm cov chaw nres nkoj no tuaj yeem hloov pauv los ntawm kev hloov kho cov cai tom qab.

Kauj Ruam 5: Lub Hwj Huam Fais Fab

Raws li tau tham ua ntej, muaj ob txoj hauv kev uas Pi tuaj yeem siv tau raws li nws siv. Los ntawm lub txhab nyiaj fais fab (lossis roj teeb sab nraud) lossis los ntawm kev ntsaws ncaj qha rau ntawm phab ntsa. Hauv peb qhov xwm txheej, peb siv lub micro-USB rau USB kom nws tuaj yeem siv tau los ntawm ib qho twg.

Txawm hais tias, txoj hlua yuav tsum tau txuas ntxiv kom xaim tuaj yeem mus txog qhov chaw nres nkoj muab qhov siab ntawm qhov khoom kawg. Txhawm rau ua qhov no, micro-USB rau USB cable yuav tsum tau txiav ib nrab, tshem tawm ntawm ob qho kawg, thiab tom qab ntawd txuas txuas txuas ntawm txhua qhov xav tau ntev tuaj yeem txuas qhov tsis zoo thiab qhov zoo ntawm ob qho tib si ntawm cov hlau raws li tau hais los saum no.

Kauj Ruam 6: Txhim Kho Raspbian ntawm Micro-SD Card

Cov kauj ruam no tseem ceeb heev rau teeb tsa koj tus pi yog tias koj tseem tsis tau ua li ntawd.

Koj yuav tsum rub tawm NOOBS:

Thiab daim npav SD daim ntawv:

Txog kev qhia ua tiav qhia yuav ua li cas rau nruab raspbian ntawm koj daim npav, mus saib lub vev xaib no vim nws ua haujlwm zoo hauv kev nthuav dav cov txheej txheem teeb tsa.

Kauj Ruam 7: Txuas Tus Pi rau Tus Saib Xyuas

Siv daim duab saum toj no ua daim ntawv qhia, txuas txhua qhov chaw txuas cuam tshuam rau tus saib xyuas thiab kho vajtse ntxiv xws li keyboard, nas, thiab lwm yam. Yog tias txhua yam tau teeb tsa kom raug, thaum lub zog tig rau ntawm lub vijtsam yuav tsum qhia Pi OS pib. raws li pom hauv daim duab saum toj no.

Kauj Ruam 8: Tsim Koj Li Twitter API

*Nco tseg - txhawm rau ua qhov no, koj yuav tsum muaj tus lej twitter nrog tus lej xov tooj tseeb

Los ntawm tib lub vev xaib uas koj tau nkag rau hauv koj tus lej twitter, mus rau

1. Nyem rau Tsim App tshiab

2. Sau lub Npe, Nqe Lus Qhia, thiab Lub Vev Xaib (yog tias koj tsis muaj lub vev xaib rau koj txoj haujlwm, txhua lub vev xaib siv tau yuav ua - tsuas yog nco ntsoov "https://"

3. Pom zoo rau T & Cs

4. Nyem Tsim koj li Twitter daim ntawv thov khawm

5. Nyem rau ntawm Permissions Tab, xaiv Nyeem thiab Sau, nias Hloov kho chaw

6. Nyem rau ntawm Cov Keys thiab Access Tokens tab, tom qab ntawd nyem rau ntawm Create my access token khawm

7. Tom qab koj nias lub khawm Tsim kuv nkag mus token, koj yuav pom Access Token thiab Access Token Secret fields. Khaws tag nrho cov haujlwm tseem ceeb no ua ke. Koj yuav xav tau lawv rau Python code.

Tus Neeg Siv Khoom (API Key)

Consumer Secret (API Secret)

Nkag mus rau Token

Nkag mus rau Token Secret

Kauj ruam 9: Programming Koj Pi

Download tau qhov chaws txuas nrog ntawm no. Nyeem los ntawm cov lus pom thiab ntxiv cov ntaub ntawv xav tau, suav nrog cov yuam sij tsim tawm hauv qib kawg. Nco ntsoov xyuas tias tus lej tus lej koj tau sau yog tus lej raug uas koj txuas nrog cov khoom siv ua ntej.

Kauj Ruam 10: Teeb Koj Txoj Cai Kom Ua Tau Zoo

Hauv koj lub Terminal (Pi OS), ntaus hauv:

sudo nano /thiab /profile

Qhov no yuav qhib cov ntaub ntawv uas cia li sau thaum pib. Txhua yam koj yuav tsum tau ua yog xyuas kom koj tus lej tseem ua haujlwm los ntawm kev ntxiv nws rau hauv cov ntawv no. Txhawm rau ua qhov no, ntaus hauv qab ntawm kab ntawv no:

sudo nab hab sej /home/pi/myscript.py

qhov twg /home/pi/myscript.py tau hloov los ntawm txoj hauv kev (cov ntawv tais ceev tseg thiab tom qab ntawd lub npe ntawm cov ntawv sib cais los ntawm slashes) ntawm qhov koj hu koj li coding file.

Tom qab ntawd, nias Ctrl-X kom tawm, ntaus Y kom txuag tau thiab nias Enter raws li qhov tsim nyog kom ua tiav txuag/tawm ntawm cov ntawv.

Kauj Ruam 11: Tsev Nyob (BOM)

Rau vaj tsev, peb siv lub thawv dub tom ntej cov khoom siv thiab ua kom sawv ntawm extrusion thiaj li tuav lub koob yees duab saum toj no lub rooj tso khoom noj.

Yam peb siv rau vaj tsev:

1. Ntoo Rooj Ntoo

2. Extrusion

3. 2x M12 Txiv Ntseej

4. 2x M12 ntsia liaj qhov rooj

5. Lub Thawv Yav Tom Ntej Dub

Kauj Ruam 12: Drilling LED, Lub Koob Yees Duab, thiab Hloov Qhov Rau Hauv Lub Thawv

Txhawm rau kom ruaj ntseg khawm, lub koob yees duab, thiab LEDs nyob rau hauv qhov chaw, peb yuav tsum laum qhov tso rau txhua qhov khoom siv.

Hauv peb qhov xwm txheej, ntawm no yog txoj kab uas hla rau txhua lub qhov:

LED tuav: 8mm

Lub Koob Yees Duab Qhov: 6mm

Khawm Qhov: 22mm (nyob ntawm lub pob koj siv)

Thaum drilling, xyuas kom tseeb tias koj tuav lub laum perpendicular rau saum npoo uas koj tau drilling thiab tsis siv ntau qhov siab uas yuav ua rau muaj kev pheej hmoo ntawm rooj plaub tawg. Nco ntsoov siv lub tshuab ntxhua khaub ncaws thiab txiv ntseej kom ruaj ntseg txhua qhov khoom siv hauv qhov chaw.

Nco ntsoov tias cov khoom siv uas koj tab tom khawb qhov yuav muaj qhov chaw txaus kom haum ua ntej ua lub qhov nyob hauv cheeb tsam ntawd lub thawv!

Kauj Ruam 13: Hloov Hluav Taws Xob thiab Hlau

Cov kauj ruam no yog nyob ntawm yeem thiab xav tau SPST rocker hloov txhawm rau txhawm rau tswj lub zog siv. Qhov no yuav ua rau kaw lub cuab yeej yam tsis tau ntsaws lub USB qaum thiab yog li ntawd, yog txoj haujlwm kom yooj yim. Koj yuav xav tau txuas USB rau micro-USB cable (raws li tau tham ua ntej) raws li nws yuav tsum tau txiav kom khiav nws los ntawm kev hloov.

Peb xub ntsuas thiab kos tawm qhov loj ntawm lub qhov peb yuav xav tau txhawm rau txhawm rau txhawb nqa qhov hloov pauv. Tom qab ntawd siv lub 8 hli laum me ntsis, peb tau hlais ob lub qhov ntawm ib sab kom peb tuaj yeem ua daim ntawv tawm ib lub qhov plaub kom haum rau qhov zoo ntawm peb cov rocker hloov.

Thaum qhov hloov pauv rocker raug thawb rau hauv qhov chaw, txoj hlua txuas txuas tau raug txiav. Ob qhov kawg tom qab ntawd tau muab muag rau lub davhlau ya nyob twg thiab lub davhlau ya nyob twg uas nyob ib sab ntawm qhov hloov rocker raws li tuaj yeem pom saum toj no.

Kauj Ruam 14: Ntxiv Lub Koob Yees Duab rau Lub Thawv

Ntxiv lub koob yees duab rau hauv lub thawv yog ib qho nyuaj heev. Peb tau ua nws siv rab yaj phom kub uas tso cai rau peb tshem lub koob yees duab nrog cov txheeb ze yooj yim yog tias muaj qee yam ua tsis raug.

Ua ntej, muab lub koob yees duab tso rau hauv qhov chaw thiab xyuas kom tseeb tias nws siv nws yog daim duab txoj hauv kev ib puag ncig. Tsis tas li, nco ntsoov tias daim duab nws siv yuav tsis qaij hlo li. Thaum cov kev hloov pauv no raug teeb tsa, nqa rab phom nplaum thiab lo ob sab ntawm Pi lub koob yees duab mus rau lub thawv. Txawm hais tias kom paub tseeb tias rab phom tsis kov lub koob yees duab lens!

Kauj Ruam 15: Txuas lub thawv rau Extrusion

Txhawm rau ua kom tiav cov kauj ruam no, ua ntej tau txais ib daim ntawv txhuas raws li pom saum toj no thiab khoov nws 90 degrees kom nws qhwv ib ncig ntawm koj lub npov. Tom ntej laum ob txheej ntawm qhov (12mm txoj kab uas hla) ob qho tib si hauv lub thawv thiab ntawm cov kab hlau txhuas kom lawv kab. Siv M12 ntsia liaj qhov rooj thiab cov txiv ntseej kom ruaj ntseg cov kab hlau txhuas nyob hauv qhov chaw raws ntug ntawm lub thawv. Cov kab ntau dhau los tawm ntawm lub thawv tuaj yeem siv los tiv thaiv lub thawv rau extrusion raws li yuav qhia hauv cov theem hauv qab no.

Nco ntsoov siv cov twj paj nruag xws li vernier calipers thiab cov kav dej txhawm rau ua kom txhua yam ua ke. Ib qho offset tuaj yeem ua rau qaij hauv cov duab tsim.

Kauj Ruam 16: Txuas Tus Sawv Cev rau Lub Hauv Paus

Ua ntej tshaj, txiav tawm ib daim ntev ntawm extrusion (*saib hauv qab). Tom qab ntawd tau txais ob kab zauv/kab tav raws li tau hais los saum no thiab ua kom qhuav haum ntawm cov khoom sib dhos thiab txuas ntxiv ntawm cov ntoo hauv qab. Tom ntej no, coj tus xaum xaum thiab kos tawm qhov twg koj yuav laum qhov tsim nyog txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau lub rooj tsavxwm.

Laum cov qhov (ib puag ncig 8mm) thiab ruaj khov rau cov khoom siv rau M8bolts thiab cov txiv ntoo. Tom ntej no, tau txais qhov xav tau t-puab cov ntsia hlau rau extrusion thiab ruaj ntseg kab extrusion nyob nruab nrab ntawm ob lub nkuaj raws li pom saum toj no.

*Nws yog ib qho tseem ceeb kom nco ntsoov tias qhov siab ntawm cov extrusion yog nyob ntawm qhov koj xav kom koj lub koob yees duab pom hauv nws qhov kev pom. Rau peb, peb tau nws zaum ntawm ib puag ncig 60 cm saum lub rooj tsav khoom txhawm rau txhawm rau sau cov lus sau ntawm lub rooj tsavxwm. Peb txiav txim siab qhov siab no tom qab kuaj lub koob yees duab ntawm qhov siab sib txawv thiab tshuaj xyuas cov duab hauv Twitter.

Kauj Ruam 17: Txuas lub Koob Yees Duab Box rau sawv ntsug

Hauv cov kauj ruam no, xub txiav tawm lwm daim me me ntawm extrusion. Qhov ntev ntawm nws yuav tsum yog nyob ntawm qhov deb koj xav kom koj lub koob yees duab mus txog raws li pom saum toj no.

Tom ntej no, coj cov hlua txhuas uas tawm ntawm lub thawv thiab laum ob 6mm qhov los ntawm nws (daim duab loj). Tom qab ntawd, nqa daim me me ntawm kev nthuav tawm thiab txuas rau hauv qab aluminium sawb siv t-shaped ntsia hlau (hauv qab daim duab sab xis). Ua kom ntseeg tau tias lub qhov sib dhos kom cov duab tsis zoo li qaij.

Thaum kawg, txhawm rau txhawm rau txuas ob daim ntawm kev sib tsoo ntawm 90-degree lub kaum ntse ntse, peb tau siv tus ncej me me/tav thiab ruaj nws rau ob daim siv qhov yuav tsum tau t-puab cov ntsia hlau uas xauv rau hauv extrusion.

Kauj Ruam 18: Xaus

Thaum kawg, tsuas yog khiav lub hwj chim cable los ntawm Pi mus rau USB chaw nres nkoj thiab ntsaws rau sab nraum qab ntawm lub thawv fais fab. Qhov ntawd yog nws!

Txhua yam uas tau ua tam sim no yog tso lub cuab yeej ze rau qhov chaw uas tib neeg noj thiab tshaj tawm cov khoom noj pub dawb twitter account uas koj tau tsim.

Ib qhov txuas rau peb nplooj ntawv twitter tuaj yeem pom ntawm no.

Txaus siab rau

Cov lus qhia no tau sau thiab tsim los ntawm Rehaan Irani thiab Justin Chan los ntawm Coding For Good service ntawm UWCSEA East raws li kev saib xyuas ntawm Mr. David Kann. Qhov no kuj tau tsim nrog kev pab los ntawm tsev kawm qib siab pabcuam Circle Enterprise thiab UWCSEA East DT chav haujlwm. Ua tsaug ntxiv rau Sewen Thy thiab Vatsal Agarwal rau lawv txoj kev koom tes rau txoj haujlwm.