Cov txheej txheem:

Tsis Siv Neeg Tsiaj Feeder Siv Tus Qub Digital Saib: 10 Kauj Ruam (nrog Duab)
Tsis Siv Neeg Tsiaj Feeder Siv Tus Qub Digital Saib: 10 Kauj Ruam (nrog Duab)

Video: Tsis Siv Neeg Tsiaj Feeder Siv Tus Qub Digital Saib: 10 Kauj Ruam (nrog Duab)

Video: Tsis Siv Neeg Tsiaj Feeder Siv Tus Qub Digital Saib: 10 Kauj Ruam (nrog Duab)
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Nyob zoo, hauv cov lus qhia no kuv yuav qhia koj li cas kuv ua Tus Tsis Siv Neeg Tsiaj Feeder siv lub Digital Digital Watch. Ive kuj tau teeb tsa cov vis dis aus ntawm yuav ua li cas kuv thiaj ua tus pub mis no. Cov lus qhia no yuav raug nkag mus rau hauv PCB kev sib tw thiab raws li qhov kev pom zoo Kuv yuav txaus siab rau nws yog tias koj tau pov ntawv tawm suab rau cov lus qhia hauv qab no. Nws yuav pab peb tsim cov phiaj xwm txaus txaus thiab qhia nws nrog koj ntawm kev qhia: D

Muaj ntau txoj hauv kev los tsim tsiaj pub tsiaj siv micro-controllers, tab sis muaj ntau tus neeg nyob ntawd uas pom micro-controllers los ua qhov nyuaj. Yog li kuv txiav txim siab ua tus tsiaj pub mis siv lub sijhawm teem sijhawm (lub moos digital nrog lub tswb nrov), kom cov neeg uas tsis nyiam micro-controllers tsis tawm ntawm cov khoom siv hluav taws xob.

Cov ntaub ntawv Eagle tsim nyog yuav raug txuas hauv qab no.

YUAV TSUM ua haujlwm li cas, yuav piav qhia qhov kawg ntawm kev qhia.

Cov cuab yeej koj yuav xav tau rau txoj haujlwm no yog:

  1. Pab txhais tes rau Kev Siv Tshuaj Yeem (Tsis teb los tau)
  2. Dej ntws
  3. Solder
  4. Soldering Hlau
  5. Ntsia hlau tsav tsheb
  6. Bent Qhov ntswg Pliers
  7. Hlau Stripper
  8. Kub Nplaum Phom

Cov cuab yeej ntxiv uas koj yuav xav tau yog tias koj xaiv ua koj li PCB hauv tsev:

  1. Rough Sponge
  2. Laser Tshuab Luam Ntawv
  3. Hlau lossis Laminator
  4. Thawv
  5. Ferric Chloride
  6. PCB Laum Ntsis
  7. Laum lossis cov cuab yeej teb

Cov khoom koj yuav xav tau yog:

  1. Ib Leeg Ib Leeg Tooj Liab Laminated Board (rau DIY PCB)
  2. Ntawv magazine (rau DIY PCB)
  3. Thyristor 2p4m - 2
  4. LM7805 Tus Tswj Hluav Taws Xob - 1
  5. LM317 Cov Kev Cai Hloov Kho - 1
  6. PC817 Opto -coupler - 2
  7. Resistor 1k - 1
  8. Resistor 820ohms - 2
  9. Capacitor 47uf 50v - 1 (tuaj yeem nce ntxiv yog xav tau)
  10. Poj Niam Headers
  11. Txiv neej Headers
  12. Servo (Ntauwd Pro -Micro Servo SG90) - 1
  13. Digital Watch nrog Tswb muaj nuj nqi (uas tsis yog beep txhua teev) - 1
  14. Mini laub khawm hloov (siab) - 3
  15. Copper Dot Board - 1
  16. Cov Nyuaj Nyuaj Nyuaj Nyuaj
  17. 10k Potentiometer - 1
  18. 9 Volt Roj Teeb Txuas - 1
  19. Me Me Slide Hloov - 1
  20. Potentiometer pob qhov rooj - 1
  21. Micro Hloov
  22. Ceev thiab Bolts
  23. Lub Thawv Yas Me (khaws cov zaub mov)
  24. 9V Roj Teeb

Kauj Ruam 1: Tsim PCB (siv Eagle Software)

Tsim PCB (siv Eagle Software)
Tsim PCB (siv Eagle Software)
Tsim PCB (siv Eagle Software)
Tsim PCB (siv Eagle Software)

Muaj ntau ntau qhov software tawm muaj los xaiv los ntawm thaum koj xav tsim PCB. Tab sis Autodesk Eagle software tau sawv los rau kuv vim nws yog tus kws tshaj lij thiab muaj lub tsev qiv ntawv tivthaiv loj uas tseem tuaj yeem nthuav dav yog tias koj xav tau, thiab muab lub peev xwm ntau dua los kho PCBs.

Yog tias koj tsis tau siv Eagle ua ntej los ua PCBs, rub nws dawb tam sim no.

Kuv yuav xa cov ntaub ntawv Eagle uas tsim nyog nrog rau pdf txhawm rau luam tawm PCB.

Nco ntsoov luam nws tawm mus rau ntawv xov xwm siv lub tshuab luam ntawv laser. Nws tsis ua haujlwm zoo li ntawd thaum kuv siv cov ntawv ci.

Qhov kev teeb tsa yuav tsum tau teeb tsa rau "Qhov Loj Loj" thaum luam ntawv, yog li ntawd cov ntawv luam tawm tsis thim lossis nthuav dav.

Kauj Ruam 2: DIY PCB hauv Tsev

DIY PCB hauv Tsev
DIY PCB hauv Tsev
DIY PCB hauv Tsev
DIY PCB hauv Tsev
DIY PCB hauv Tsev
DIY PCB hauv Tsev

Kuv txiav txim siab mus tom ntej kos kuv tus kheej PCB hauv tsev rau qee qhov laj thawj. Txawm hais tias qee lub tuam txhab muab los tsim PCBs rau ob peb tus nqi, lawv cov nqi xa khoom yog ntau zaus tus nqi lawv them rau PCB. Thaum kawg kuv pom tias nws yog ib qho kev siv nyiaj tsis tsim nyog thiab yuav qhov Tsiaj Tsiaj Tsiaj Tsiaj tiag yuav tau pheej yig dua. Kuv kuj nyiam qhov txaus siab tom qab kuv ua kuv tus kheej PCB. Tseeb nws yog qhov nyuaj me ntsis, tab sis ib zaug koj tau dai ntawm nws, qhov muaj peev xwm tsis muaj qhov kawg.

Cov kauj ruam kuv coj los npaj cov laug tooj liab rau kev kos yog:

  1. Kuv siv daim txhuam cev ntxhib los txhuam cov av los yog cov roj (ntawm cov tooj liab laminated board) kom lub toner yuav lo zoo rau tooj liab.
  2. Tom qab kuv qhuav daim ntawv tooj liab, kuv muab nws tso rau ntawm daim ntawv xov xwm, tig rau sab luam tawm, thiab kuv muab nws xaws rau ib daim ntawv.
  3. Tom qab ntawd kuv muab daim ntawv tso rau hauv ib nrab, thiab pib Iron rau nws (Cov Hlau yuav tsum tau nce mus rau qhov kub siab tshaj plaws thiab Steam tau muab tua)
  4. Kuv muab cov hlau tso rau ntawm ib sab ntawm daim ntawv xov xwm, thiab ironed nws rau kwv yees li 5 feeb.
  5. Tom qab ntawd kuv maj mam tshem daim ntawv tooj liab los ntawm daim ntawv tais, thiab muab tso rau hauv dej (ceev faj, nws yuav kub heev).
  6. Tom qab cia cov ntawv xov xwm ntub dej, kuv pib maj mam tev tawm cov ntawv xov xwm los ntawm pawg thawj coj tooj liab (siv koj lub sijhawm, thaum tev nws tawm).
  7. Tom qab ntawd kuv so nws qhuav.
  8. Kuv siv tus cim cim tas mus li txhawm rau txhawm rau qhov khoob ntawm cov kab uas tej zaum tau tsim thaum tev tawm ntawm cov ntawv xov xwm.

Cov kauj ruam uas kuv tau ua rau Etch Pawg Tooj Liab:

  1. Kuv siv Ferric Chloride los txhuam cov laug cam. Thov siv kev ceev faj thaum tuav nrog Ferric Chloride.
  2. Cov tooj liab pib yaj me ntsis me ntsis. Cov txheej txheem kos duab yuav siv sijhawm kwv yees li 10 feeb.
  3. Thaum nws ua tiav, Kuv yaug nws tawm hauv dej thiab so nws kom qhuav. (Tsis txhob tso nws rau hauv Ferric Chloride txawm tias tom qab cov tooj liab uas tsis xav tau yaj tawm, lossis lwm qhov cim tseg yuav tau noj tam sim ntawd ib yam nkaus).

Qhov kawg ntawm PCB:

  1. Kuv siv lub laum los xuas nrig hauv qhov tsim nyog hauv PCB.
  2. Tom qab drilling txhua qhov, Kuv siv cov ntaub plaub plaub los txhuam cov toner, qhia pom cov tooj liab hauv qab.
  3. Kuv tau siv cov ntaub plaub plaub ntawm lwm sab ib yam nkaus, vim tias cov txheej txheem drilling yuav ua rau nws ntxhib.
  4. Kuv tau so nws tawm, thiab nws tau nthuav tawm cov ntawv luam tawm Circuit Circuit zoo heev.

Kauj Ruam 3: Siv Cov Khoom Siv Rau PCB

Soldering Cheebtsam rau PCB
Soldering Cheebtsam rau PCB
Soldering Cheebtsam rau PCB
Soldering Cheebtsam rau PCB
Soldering Cheebtsam rau PCB
Soldering Cheebtsam rau PCB
Soldering Cheebtsam rau PCB
Soldering Cheebtsam rau PCB

Cov neeg feem coob pom kev siv tshuaj yaj yeeb yog ib txoj haujlwm tsis txaus siab. Tab sis yog tias koj ua raws cov txheej txheem raug, koj yuav poob rau hauv kev hlub nrog cov laug, thiab tau txais qhov zoo tshaj plaws sib txuas ua ke tau.

  1. Nco ntsoov ib txwm muaj lub kiv cua tso ze ntawm koj lub rooj zaum ua haujlwm kom nqus cov pa tawm los ntawm cov pa taws hlawv (nws yog qhov ntws tawm uas ua rau cov pa taws, tsis yog cov laug, thiab qhov no yog teeb meem rau koj lub ntsws).
  2. Tsis txhob siv hnab looj tes (qhov no yuav zoo li tsis txaus ntseeg, tab sis koj tab tom ua haujlwm nrog cov cuab yeej uas tso cua sov ntau, yog tias nws kov koj lub hnab looj tes, koj yuav tsis hnov qhov kub hnyiab kom txog thaum hnab looj tes yaj rau ntawm koj txhais tes. Ntseeg kuv, koj ua tsis xav hlawv roj hmab lossis roj hmab ntawm koj txhais tes.
  3. Ib txwm ntxuav koj cov lus qhia ua ntej koj muab tshuaj txhuam rau txhua feem. Cov txheej txheem oxidized yuav tsis tsim kom muaj qhov sib txuas zoo tshaj plaws. Siv daim txhuam cev ntub (cov uas tau tsim tshwj xeeb rau cov laug, uas tsis yaj, thiab lawv pheej yig heev). TSIS TXHOB siv cov ntawv ntxhib ntxhib los ntxuav koj cov lus qhia ntxaws, txheej tiv thaiv yuav hnav thiab koj yuav tsis muaj cov hlau liab qab.
  4. Siv flux (ntseeg kuv, qhov no pab tau ntau)

Cheebtsam koj yuav tsum tau muab tshuaj txhuam rau PCB no yog:

  1. Thyristor 2p4m - 2
  2. LM7805 Tus Tswj Hluav Taws Xob - 1
  3. LM317 Cov Kev Cai Hloov Kho - 1
  4. PC817 Opto -coupler - 2
  5. Resistor 1k - 1
  6. Resistor 820ohms - 2
  7. Capacitor 47uf 50v - 1 (tuaj yeem nce ntxiv yog xav tau)
  8. Poj Niam Headers
  9. Txiv neej Headers

Kauj ruam 4: Hloov kho Servo

Hloov kho Servo
Hloov kho Servo
Hloov kho Servo
Hloov kho Servo
Hloov kho Servo
Hloov kho Servo

Servo feem ntau tsis tuaj yeem tig tas li. Lawv feem ntau yog siv nrog micro-maub los kho txoj haujlwm.

Cov kauj ruam uas kuv tau ua kom nws tig mus txuas ntxiv yog:

  1. Kuv tshem tawm lub npog ntawm Servo tom qab tshem nws cov ntsia hlau
  2. Kuv desoldered cov xov hlau los ntawm Circuit Court hauv servo, thiab txuas nws ncaj qha rau lub tshuab.
  3. Kuv tau sib nrug ntawm lub hau npog uas nyob tom tsev, txhawm rau tshem tawm qhov kawg nres uas txwv tsis pub servo tig los tsis tu ncua.
  4. Tab sis vim qee qhov kuv qhov kev pabcuam tsis muaj qhov kawg nres, yog li kuv tso txhua yam rov qab rau hauv qhov chaw.

Qhov laj thawj kuv siv Servo hloov lub cav ib txwm yog vim tias servo tuaj yeem ntsia tau yooj yim mus rau hauv lub casing, thiab tseem yog qhov tseeb tias lub thawv ntim khoom noj tuaj yeem kho rau nws siv tsuas yog ib lub hau ntswj.

Ntaus ob tug noog nrog ib lub pob zeb.

Kauj Ruam 5: Hloov Kho Saib

Hloov Kho Saib
Hloov Kho Saib
Hloov Kho Saib
Hloov Kho Saib
Hloov Kho Saib
Hloov Kho Saib
Hloov Kho Saib
Hloov Kho Saib

Feem ntau ntawm lub dab teg muaj lub tswb nrov uas siv Piezo buzzer los ceeb toom koj thaum teem sijhawm mus txog. Rau txoj haujlwm no koj yuav xav tau qhov ntawd, tab sis nws yuav tsum tsis txhob beep txhua teev. Qee lub moos muaj lub tswb teev, uas yuav xaus ua rau lub Feeder txhua teev. Peb tsis xav tau cov tsiaj rog rog.

Nov yog cov kauj ruam uas kuv tau ua:

  1. Kuv xub kuaj tawm lub tswb muaj nuj nqi thiab tom qab ntawd txheeb xyuas lub pob twg tua lub tswb. Zoo li lub pob rau lub teeb tua lub tswb hauv lub moos tshwj xeeb no.
  2. Tom qab ntawd, Kuv tau txav mus rau qhov sib dhos lub moos.
  3. Ob qhov kev sib cuag uas kov lub piezo buzzer yog dab tsi xa nws lub teeb liab, thiab peb yuav xav tau cov dav siv los ua rau peb lub voj voog.
  4. Cov nyees khawm ua haujlwm los ntawm kev kov qhov kev sib cuag sib txuas mus rau lub dav hlau ntawm lub Circuit Court ntawm lub moos.
  5. Tom qab unscrewing lub roj teeb lub phaj, kuv tsoo tawm cov kev sib cuag uas ua raws li cov nyees khawm.
  6. Kuv tau siv cov xaim txuas mus rau lub phaj kom kuv tuaj yeem siv nws ua kev sib cuag.
  7. Kuv tau siv lwm txoj xov hlau mus rau lub davhlau ya nyob twg uas txuas rau lub piezo buzzer.
  8. Tom qab ntawd kuv tau cais cov zaub los ntawm Circuit Court, yog li kuv tuaj yeem txuas hauv cov xov hlau mus rau nws lub pob hu.

Kuv ua lub hauv paus tuav cov nyees khawm li cas:

  1. Kuv tau siv 3 lub laub me me khawm hloov mus rau ib qho ntawm pawg thawj coj saib, uas yuav raug siv los hloov chaw teeb tsa ntawm lub moos.
  2. Kuv txuas ib lub davhlau ya nyob twg ntawm txhua 3 qhov hloov pauv mus rau kev sib cuag ntawm lub moos.
  3. Tom qab txuas nrog cov nyees khawm ntawm lub moos rau tus kheej hloov.
  4. Lub roj teeb phaj tau muab muag rau qhov dav dav dav ntawm cov hloov pauv thiab lub davhlau ya nyob twg rau piezo buzzer tau txuas nrog txuas xov hlau.
  5. Kuv kuj txuas ib lub xov hlau mus rau lub tswb tshem tawm qhov hloov pauv uas peb pom tias yog lub pob rau lub teeb ntawm lub moos.

Tom qab ua tiav txhua qhov ntawd, Kuv ntsia lub moos rov qab rau hauv qhov chaw.

Kauj Ruam 6: Soldering Tshooj Ntawm Cov Cheeb Tsam

Soldering Tus Txheej Txheem Tshwm Sim
Soldering Tus Txheej Txheem Tshwm Sim
Soldering Tus Txheej Txheem Tshwm Sim
Soldering Tus Txheej Txheem Tshwm Sim
Soldering Tus Txheej Txheem Tshwm Sim
Soldering Tus Txheej Txheem Tshwm Sim

Cov khoom seem uas yuav tsum tau muab pov tseg:

  1. Kuv tau siv ob lub xov hlau mus rau sab laug thiab tus pin nruab nrab ntawm 10K potentiometer.
  2. Kuv kuj tau muag hauv 9 volt roj teeb txuas rau PCB.
  3. Lub potentiometer tau muab muag rau PCB thiab.
  4. Lub tswb ceeb toom cov tswv yim tau txuas nrog thawj thyristor thiab kev sib cuag sib txuas rau hauv av ntawm PCB.
  5. Lub tswb kaw xaim tau txuas nrog Tus Sau ntawm Ob Qhov Optocoupler thiab Emitter tau txuas nrog hauv av.
  6. Tom qab ntawd kuv tau siv qee qhov xov hlau uas yuav txuas rau lub micro hloov.
  7. Kuv ntxiv qhov hloov pauv me me nyob nruab nrab ntawm pcb thiab hloov micro kom lub tshuab pub mis tuaj yeem tua thaum xav tau.

Kauj Ruam 7: Vaj Tsev rau Cov Cheeb Tsam

Vaj tse rau Cheeb Tsam
Vaj tse rau Cheeb Tsam
Vaj tse rau Cheeb Tsam
Vaj tse rau Cheeb Tsam
Vaj tse rau Cheeb Tsam
Vaj tse rau Cheeb Tsam

Cov kauj ruam kuv coj los teeb tsa txhua qhov khoom siv rau hauv vaj tsev:

  1. Kuv siv cov yas yas uas kuv tau tsim qhov qhib ua ntej.
  2. Kuv tso lub servo rau hauv qhov tsim nyog qhib thiab ntsia nws rau hauv qhov chaw.
  3. Kuv siv cov kua nplaum kub los lo lub moos rau hauv lub casing.
  4. Tom qab ntawd kuv ntswj rau hauv cov nyees khawm ntawm lub moos rau lub casing (txhua 3 khawm zoo li ua haujlwm zoo kawg nkaus).
  5. Kuv txuas cov servo rau PCB, thiab teeb tsa lub hwj chim ntsuas hluav taws xob thiab hloov qhov swb mus rau lub casing.
  6. Tom qab ntawd kuv hla cov xov hlau rau lub micro hloov tawm los ntawm qhov qhib me me ze ntawm qhov kev pabcuam, thiab ntsia hlau PCB mus rau lub casing.
  7. Kuv kho lub yas yas mus rau hauv qab npog ntawm lub casing kom cov khoom noj tuaj yeem ntsia tau rau ntawm thoob dej yug ntses tau yooj yim thiab ntsia lub hau kaw.
  8. Kuv tau muab lub pob qhov rooj tso rau ntawm lub hwj chim kom nws yooj yim dua los kho nws.
  9. Kuv txiav cov xov hlau rau lub micro hloov thiab muab nws txuas rau qhov ib txwm kaw cov neeg ntawm micro hloov.

Kauj Ruam 8: Thawv rau Khoom Noj

Thawv Rau Khoom Noj
Thawv Rau Khoom Noj
Thawv Rau Khoom Noj
Thawv Rau Khoom Noj
Thawv Rau Khoom Noj
Thawv Rau Khoom Noj

Kuv tau siv lub ntim yas los khaws cov zaub mov, uas yog muab los ntawm tus pub.

  1. Kuv tau qhib ntau qhov qhib, txhua qhov rau kev ua haujlwm sib txawv.
  2. Kuv siv ib daim yas los ua ib qho faib, uas kuv kuj tau qhib qhov khoom noj kom dhau mus.
  3. Kuv siv cov kua nplaum kub los lo rau hauv lub khob.
  4. Kuv kuj siv lwm daim yas los ua lub hau npog, txhawm rau txwv cov zaub mov uas poob tawm ntawm tus pub mis.
  5. Kuv siv cov txiv ntoo thiab ntsia liaj qhov rooj los tuav lub hau npog rau lub thawv.
  6. Kuv siv cov kua nplaum kub los lo cov txiv ntoo hauv qhov chaw.
  7. Tom qab ntawd, Kuv kaw sab caj npab ntawm servo mus rau nruab nrab qhib lub thawv nrog kua nplaum kub.
  8. Kuv ntxiv cov txiv ntoo thiab ntsia liaj qhov rooj rau qhov qhib ntawm ntug. Qhov no yuav raug siv los ua kom lub micro hloov.
  9. Tom qab ntawd kuv tau ruaj ntseg hauv lub thawv rau lub servo, siv cov ntsia hlau muab nrog cov servo.

Kauj Ruam 9: Xeem Kev Xeem

Kuaj Khiav
Kuaj Khiav
Kuaj Khiav
Kuaj Khiav
Kuaj Khiav
Kuaj Khiav

Ntawm qhov kev sim siab, servo ua haujlwm yam tsis nres tom qab ib zaug. Yog li peb yuav tsum tau kho lub ntsia liaj qhov rooj uas xav tias yuav ua rau lub micro hloov.

Nws zoo li ua rau nws raug rau qhov kev sim zaum thib ob.

Kuv ntxiv lub hau npog, thiab sim nws dua. Nws zoo li ua haujlwm zoo kawg nkaus.

Kuv tau mus tom ntej thiab sau npe rau ntawm qhov hloov pauv thiab cov nyees khawm uas tswj lub moos.

Tig lub potentiometer, peb tuaj yeem hloov kho qhov nrawm uas servo tig.

Kuv ntxiv qee cov zaub mov ntses, thiab tig lub pub rau. Tom qab ntawd kuv sim tawm lub sijhawm ua haujlwm pub mis. Nws ua haujlwm zoo kawg nkaus thiab.

Kauj Ruam 10: Lub Circuit Court Ua Haujlwm Li Cas

Hauv cov ntsiab lus yooj yim, lub tswb ceeb toom ua rau tus pub nkag mus rau hauv cov zaub mov xa mus, thiab lub micro hloov pauv OFF qhov kev sib hloov thaum puv puv tiav.

Cov txheej txheem ua tiav yog:

  1. Lub moos xa cov mem tes mus rau piezo buzzer uas ua rau lub suab koj hnov.
  2. Cov mem tes me me heev, yog li peb siv lub thyristor los khaws cov mem tes.
  3. Lub plawv dhia tig rau ntawm lub thyristor tso cai rau hluav taws xob hla.
  4. Tab sis cov mem tes tig ON thiab OFF nrawm (uas ua rau lub suab nrov nrov-nres-beep-nres…. Suab), yog li peb xav tau lub thyristor thib ob kom nws tig rau.
  5. Thaum thawj thyristor tig ON, nws tig ON ob qho tib si opto-couplers
  6. Thawj qhov opto-coupler tig ON lub thyristor thib ob (thiab qhov no nyob ON, yam tsis tig tawm kom txog thaum lub micro hloov pauv tau nias).
  7. Qhov thib ob opto-coupler tig ON lub tswb nres hloov (qhov no yog vim tias lub tswb tseem tseem beeping, thiab lub dispenser twb ua tiav ib zaug, nws yuav tig rov qab, txij li lub moos tseem xa cov teeb liab. Qhov no yuav ua rau ntau tig es tsis yog ib qho).
  8. Tom qab qhov thib ob opto-coupler tig OFF lub tswb, thawj thyristor tig OFF ib yam nkaus, tab sis tus thib ob thyristor nyob twj ywm ON.
  9. Tom qab lub tshuab xa khoom ua tiav puv puv, cov ntsia liaj qhov rooj uas peb tsau rau ib qho ntawm cov npoo yuav tsoo lub micro hloov, thiab txuas lub zog rau hauv Circuit Court (txij li peb tau siv cov xov hlau mus rau qhov ib txwm raug kaw).
  10. Lub capacitor uas peb tau ntxiv rau hauv Circuit Court yuav ua rau nws ncaws kawg qhov servo xav tau hla lub micro hloov, txawm tias tom qab lub hwj chim raug txiav. Qhov no xav tau vim tias yog tsis muaj lub tshuab hluav taws xob, lub ntsia liaj qhov rooj yuav raug daig ntawm qhov hloov pauv me me thiab ua kom lub zog tsis sib txuas.
  11. Kev pub mis nres kom txog thaum lub moos xa lub teeb liab ib zaug ntxiv, thaum lub tswb tau qhib.
  12. Lub voj voog rov ua dua

Kuv vam tias qhov kev qhia qhia no yuav pab tau. Nco ntsoov Pov Ntawv rau nws hauv qab no, yog li peb tuaj yeem khaws cov phiaj xwm txaus thiab qhia rau koj ntawm cov lus qhia. Nyob zoo, thiab pom koj hauv qhov haujlwm tom ntej:)

Pom zoo: