DIY Wearable Ring LED: 4 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:26

Nyob zoo, ob peb lub hlis dhau los Kuv tsim kuv thawj SMD PCB, yog li kuv xav qhia kuv qhov kev paub nrog koj.

Peb tab tom tsim lub PCB ncig nrog 4 RED LEDs, pawg thawj coj no tuaj yeem siv ua qhov ntsuas lossis tsuas yog kho kom zoo nkauj rau Xus:). Txheeb lub nplhaib khawv koob saum toj no. (Daim duab zoo dua yuav tsum tau upload… thov txim)

Ntsiab lus piav qhia:

Cia peb txhais cov kev txwv ntawm txoj haujlwm.

- lub cuab yeej yuav tsum tau teeb nyob hauv ib lub tsev uas muaj cov ntim hauv qab no 12mm (inch) x 8 mm (qhov siab)

- yuav tsum ua haujlwm nrog qhov hluav taws xob qis thiab rau 1h yam tsis hloov lub roj teeb

Khoom siv

Yuav Tsum Kho Vajtse:

- 4 RED SMD LEDs, Kuv siv Kingbright 3.2mmx1.6mm SMD CHIP LED LAMP

- 4 SMD Resistors (3216 pob), txhua 400 Ohm.

- 1 Npib Cell CR1025

- 1 Lub Hwj Chim Roj Teeb rau CR1025, Kuv tabtom siv Keystone 3030TR

Yuav tsum tau cov cuab yeej:

- CAD Cov Cuab Yeej rau kev kos duab thiab PCB tsim, Kuv siv Kicad 5.1.5

Kuv yuav piav qhia hauv cov kauj ruam tom ntej uas kuv tau xaiv saum toj no Cov khoom siv kho vajtse

Kauj Ruam 1: Xaiv Lub Roj Teeb

Raws li tau hais ua ntej, peb xav tau lub roj teeb hluav taws xob qis uas tuaj yeem muab lub zog txaus rau 4 LEDs.

Lub roj teeb no yuav tsum tau me me txaus kom haum rau qhov ntev tau teev tseg ua ntej. Los ntawm kev txheeb xyuas cov lus saum toj no, peb tuaj yeem txheeb xyuas CR1025 ua qhov kev xaiv zoo rau peb txoj haujlwm, me me txaus thiab muaj lub zog txaus los muab 7.5mA rau 1h rau txhua LED. Los ntawm kev txheeb xyuas nws Daim Ntawv Teev Npe (Daim Duab 2), peb tuaj yeem pom tias qhov tuab yog kwv yees me me 2.5 hli. Zoo meej rau peb tes num ib yam nkaus.

Nco tseg: Cov LEDs ua haujlwm feem ntau nrog hluav taws xob> 0.7 V thiab qhov siab tshaj plaws tam sim no ntawm 20 mA txhua. CR1025 nominal voltage yog 3 V thiab txiav tawm qhov hluav taws xob ntawm 2.

Kauj Ruam 2: Xaiv Lub Roj Teeb

Cov kauj ruam no yooj yim heev, raws li tshawb fawb hauv google Kuv pom lub rooj Keystone rau cov neeg siv roj teeb (Txheeb xyuas daim duab saum toj no). Kuv xaiv 3030TR vim tias muaj nyob ntawm kuv lub khw muag khoom, tab sis koj tuaj yeem xaiv 3050TR ib yam.

Nco tseg: qhov siab ntawm tus tuav lub roj teeb yog 3 hli, roj teeb hauv nws => tag nrho tuab 3 hli. Zoo kawg!

Kauj Ruam 3: Lwm Cov Cheeb Tsam thiab Qhov Ntev Kawg

Cia peb suav tus nqi ntawm txhua tus tiv thaiv, peb xav kom 7.5 mA mus dhau txhua tus tiv thaiv.

Qhov no txhais tau tias (tsis quav ntsej qhov poob qis hauv txhua LED). R = 3V/7.5mA ==> 400 Ohm

Ntawm qhov tod tes, peb yuav tsum txheeb xyuas qhov tuab ntawm txhua qhov khoom ntxiv. Txog tam sim no, peb muaj:

3mm vim lub roj teeb tuav thiab roj teeb.

peb yuav tsum suav nrog PCB tuab (feem ntau yog 1.6 hli) => 4.6mm

thiab LED/Resistor tuab (0.75 mm) => 5.35 <8mm. Kev txwv loj tau ua tiav.

Kauj Ruam 4: Schematic thiab PCB

Cov txheej txheem yog qhov yooj yim heev peb txuas cov LEDs rau cov khoom sib txuas thiab cov khoom siv hluav taws xob

Kuv tsis tuaj yeem nrhiav tus hneev taw rau Keystone 3030TR lub roj teeb tuav. Yog li kuv hloov kho ib qho muaj thiab siv nws hauv qhov haujlwm. Kev hloov kho tsis zoo tag nrho, tab sis nws ua haujlwm. Kuv yuav sim nrhiav qhov chaw tso nws, nws ua tsis tau ntawm no

Kuv tau sim ua raws cov txheej txheem txhawm rau tso cov khoom sib txuas, lub tswv yim tseem ceeb yog tso lub roj teeb rau ntawm ib txheej thiab lwm yam khoom sib dhos ib qho

Daim duab kawg pom koj PCB hauv Kicad 3D saib.

Kuv xa cov ntaub ntawv mus rau kuv tus neeg xa khoom PCB kom ua tiav qhov ua tiav. Vam tias koj nyiam nws!