Cov txheej txheem:
Video: PCB rau Delta5 Race Timer: 4 Kauj Ruam
2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:27
Delta5 yog qhov qhib tau zoo laptimer rau miniquads. Nws siv cov khoom siv tau npaj tau thiab raug nqi ib feem ntawm tus nqi hauv kev sib piv rau kev ua lag luam laptimers.
github.com/scottgchin/delta5_race_timer
Raws li Delta5 tsuas yog muaj ib qho luam tawm pcb tsim uas tsuas yog txhawb nqa 4 tus txais, kuv tsim kuv tus kheej kom haum 8 tus txais. Qhov txawv tsuas yog qhov kuv tsim siv arduino minis txhawm rau kom haum hauv 100x100 pcb hneev taw, tseem ceeb heev rau tus nqi pcb qis.
Kauj Ruam 1: Qhov Chaw
Koj yuav xav tau cov txheej txheem txheej txheem rau PCB no dua li cov arduino minis thiab cov tswj hwm. Muaj ntau hom txheej txheem rau arduino mini, yog li xyuas kom koj tau txais cov uas nrog A4 thiab A5 pinned tawm zoo ib yam li cov hauv cov duab. Kuv siv 1/2W hlau zaj duab xis resistors muaj los ntawm jaycar.
24 x 1K resistors
8 x 100K resistors
8 x RX5808 nrog SPI
8 x 20*20mm rhaub dej kub
2 x MP1584EN DC-DC hloov pauv
8 x Arduino Minis - PCB tsuas yog tsim los ua haujlwm nrog cov uas muaj A4 thiab A5 tus pin tawg tawm ib sab ntawm kab tseem ceeb ntawm tus pin. Cov no yog i2c comms thiab tsim nyog rau kev sib txuas lus rau raspberry pi
1 x PCB
208 x txiv neej/poj niam 2.54mm lub taub hau
+ raspberry pi thiab xov hlau, rooj plaub yog tias tsim nyog
Kauj ruam 2: PCB
PCB tuaj yeem xaj los ntawm ib lub tuam txhab pcb fab, eagle thiab gerber cov ntaub ntawv tau txuas nrog.
Kauj Ruam 3: Sib dhos PCB
Solder cov resistors ua ntej. Tus tiv thaiv uas nyob deb ntawm txhua pob ntawm 3 yog 100k. Cov pob ntawm 3 yog 1k resistors.
Silkscreen ua tiav kom lub sab uas nws nyob ntawm sab yog qhov uas koj yuav tsum tso lub taub hau rau hauv. Txhua tus arduinos xav tau 12 tus pin ntawm txhua sab thiab 2 rau i2c pins. Cov neeg txais yuav xav tau 9 tus pin ntawm ib sab thiab 3 ntawm lwm tus. Saib xyuas thaum siv lub 3 tus pin ntawm tus txais 2, zoo li nws nyob nruab nrab ntawm 3.5v tus tswj hwm ntawm lwm sab. Qhov no yuav tsum nyob twj ywm kom sai li sai tau kom tus tswj hwm tuaj yeem ua rau saum npoo rau cua sov.
Kho tus tswj qhov hluav taws xob rau 5v thiab 3.5v ua ntej koj teeb tsa lawv. Cov no tuaj yeem rov ua dua lossis tsuas yog siv cov pins ntau dua. Sim ua kom sab nraub qaum ntawm qhov ntsuas kov PCB kom nws tsawg kawg tuaj yeem muaj qee qhov ua kom sov.
Cov kab laug sab laug rau tus txais cov qauv thiab cov arduinos. Siv cov kua nplaum ua kom sov, lo cov cua sov rau cov neeg txais. Nws tsis muaj teeb meem tus naj npawb chaw nres nkoj twg koj ntsaws rau hauv vim nws tsuas yog 8 tus qauv (tus txais thiab arduino) uas muaj kev sib txuas lus sib txuas (i2c).
Muaj cov qauv ntawm cov kab taub hau tso cai rau yooj yim dua thiab hloov pauv yog tias muaj qhov ua tsis raug lossis ntsib teeb meem. Arduinos pheej yig tuaj yeem ua tsis tiav vim li cas. Flash cov arduinos nrog tib lub firmware zoo ib yam muaj nyob ntawm nplooj ntawv github, tsuas yog nco ntsoov hloov lub hom phiaj rau arduino mini thiab tseem hloov pauv i2c chaw nyob rau txhua tus.
Raspberry pi tau txuas nrog tib yam li daim duab ntawm github. Tus tswj hwm tuaj yeem ua zog pi nrog tsis muaj teeb meem.
Cov neeg txais yuav tau kub heev txawm tias lawv tau ua haujlwm ntawm 3.5v yog li koj yuav xav teeb tsa kiv cua.
Kauj Ruam 4: Ua Qhov Case
Thaum txhua yam raug muag thiab teeb tsa, koj tsuas yog xav tau rooj plaub! Tus kiv cua yuav tsum tau txiav txim siab vim qhov kub tau txais.
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