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Endev-board

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@sophiayduan

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Files for version 1. Pick what you came for.

KiCad projectAll 60 files, ready to open in KiCad5.0 MB
For fabricationGerbers, drill, pick-and-place and BOMGerbers and drill zip138 KBGerbers and drill zip: endevled47 KBGerbers and drill zip: rotaryencoder22 KBPick and place (CSV)4.2 KBPick and place (CSV): endevled1.7 KBPick and place (CSV): rotaryencoder228 BBOM CSV12 KB
Schematic PDFEvery sheet, to read or print209 KB
3D modelThe board with its parts, for an enclosure (GLB)3D model (GLB)5.4 MB3D model (GLB): endevled1.3 MB3D model (GLB): rotaryencoder246 KB
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README

i'm currently assembling the led strip and making v2 of the devboard - 03/18/26

Endev v1.0

A system centered around a devboard that monitors my printer (Ender 3 v2)

Features:

  • Form factor: Fits inside the spool holder bracket

  • Mounting: Magnets that align with the spool holder bracket

  • Peripherals:

    • ESP-12F (notifications over wifi/bluetooth)
    • Accelerometer (intense vibration detection)
    • Temp/humidity sensor
    • Configuration switches
    • Status LEDs

  • Filament Funout detection

  • LED strip attachment

I built it as my printer is not known for its reliability, so by tracking common points of failure, I can hopefully stop the print before wasting too much filament.

CAD

PCB

Main board

Led strip

Encoder

Credits

v1.0 is based off of @karmanyaahm's amazing jam, it was an incredible resource to learn about creating a PCB.

BOM
ItemDescriptionQuantity or MOQPrice (USD)CommentsLink
3D printed partsI'll print these myself2Free
Magnets204.19https://www.aliexpress.com/item/1005009483101110.html?spm=a2g0o.cart.0.0.128c38daDbmklF&mp=1&pdp_npi=5%40dis%21USD%21USD%208.38%21USD%200.99%21%21USD%200.99%21%21%21%40210318c317539163040365915e4760%2112000049241614461%21ct%21CA%212723362424%21%211%210
Threaded insertsM2 for attaching PCB (M2xL4xOD3.2)1001https://www.aliexpress.com/item/1005006838108683.html?spm=a2g0o.detail.0.0.512duR8VuR8Vrr&mp=1&pdp_npi=5%40dis%21USD%21USD%203.41%21USD%203.41%21%21USD%203.41%21%21%21%402103241117539191290706303e0683%2112000038467725086%21ct%21CA%212723362424%21%211%210
ScrewsM2 x 0.4mm x 5mm for attaching PCBs501.54https://www.aliexpress.com/item/32810872544.html?spm=a2g0o.productlist.main.4.5b891e26tUgjLP&algo_pvid=1f686fdf-e83e-46d2-acba-cea3141f00dc&algo_exp_id=1f686fdf-e83e-46d2-acba-cea3141f00dc-3&pdp_ext_f=%7B%22order%22%3A%2216205%22%2C%22eval%22%3A%221%22%7D&pdp_npi=4%40dis%21USD%211.48%210.99%21%21%211.48%210.99%21%402103244817539191205775498e2f9f%2112000037536050510%21sea%21CA%212723362424%21ACX&curPageLogUid=X9UQl2y2Bj6A&utparam-url=scene%3Asearch%7Cquery_from%3A
BearingU groove 4x13x4mm125.63https://www.aliexpress.com/item/1005008374164487.html?spm=a2g0o.productlist.main.3.540c548frWOPoS&algo_pvid=e7eb187c-3715-4f4d-86d2-6c2aa45f01d4&algo_exp_id=e7eb187c-3715-4f4d-86d2-6c2aa45f01d4-2&pdp_ext_f=%7B%22order%22%3A%228%22%2C%22eval%22%3A%221%22%7D&pdp_npi=4%40dis%21USD%211.57%211.41%21%21%2111.24%2110.12%21%402101efeb17539194800916458e50a1%2112000044764627302%21sea%21CA%212723362424%21ACX&curPageLogUid=jzstNJ8wHypr&utparam-url=scene%3Asearch%7Cquery_from%3A#nav-review
NutM4 for securing the u groove + acts as a spacer251.83I geniunely only need 1 but don't own anyhttps://www.aliexpress.com/item/1005007593861199.html?spm=a2g0o.productlist.main.2.62af616dnb3xT0&aem_p4p_detail=20250730165314783684381599940002082931&algo_pvid=f8c104ff-09e8-4179-a7b6-f9ec4bdba51d&algo_exp_id=f8c104ff-09e8-4179-a7b6-f9ec4bdba51d-1&pdp_ext_f=%7B%22order%22%3A%2212155%22%2C%22eval%22%3A%221%22%7D&pdp_npi=4%40dis%21USD%211.68%210.99%21%21%2112.02%217.10%21%402101e9a217539195939612623eb9f2%2112000041426239341%21sea%21CA%212723362424%21ACX&curPageLogUid=tHTrrNlzocK6&utparam-url=scene%3Asearch%7Cquery_from%3A&search_p4p_id=20250730165314783684381599940002082931_1
Solder0.6mm and 50g17.47I have a soldering iron but nothing elsehttps://www.aliexpress.com/item/1005008563576114.html?spm=a2g0o.cart.0.0.75a538daVmgtQw&mp=1&pdp_npi=5%40dis%21USD%21USD%207.47%21USD%207.47%21%21USD%207.47%21%21%21%402103247017539199222257238ee375%2112000045733462562%21ct%21CA%212723362424%21%211%210
Flux30ml15.53I have a soldering iron but nothing elsehttps://www.aliexpress.com/item/1005006113424502.html?spm=a2g0o.productlist.main.1.69d91f2bDlbwSa&algo_pvid=b4d5fca4-f1b9-48cb-9127-33b5006cc8df&algo_exp_id=b4d5fca4-f1b9-48cb-9127-33b5006cc8df-0&pdp_ext_f=%7B%22order%22%3A%226348%22%2C%22eval%22%3A%221%22%7D&pdp_npi=4%40dis%21USD%2112.12%210.99%21%21%2186.49%217.05%21%402101c72a17539198472351756e97f8%2112000036314063931%21sea%21CA%212723362424%21ACX&curPageLogUid=pjg6NKMW8yr4&utparam-url=scene%3Asearch%7Cquery_from%3A
LED Strip56Regular PCB, I will hand solder this
Neopixel MiniSK6812 mini503.46I need 18 but must order 50https://www.aliexpress.com/item/32623583544.html?src=google&pdp_npi=4%40dis!CAD!2.79!2.79!!!!!%40!12000038353355761!ppc!!!&src=google&albch=shopping&acnt=631-313-3945&isdl=y&slnk=&plac=&mtctp=&albbt=Google_7_shopping&aff_platform=google&aff_short_key=UneMJZVf&gclsrc=aw.ds&&albagn=888888&&ds_e_adid=&ds_e_matchtype=&ds_e_device=c&ds_e_network=x&ds_e_product_group_id=&ds_e_product_id=en32623583544&ds_e_product_merchant_id=107423131&ds_e_product_country=CA&ds_e_product_language=en&ds_e_product_channel=online&ds_e_product_store_id=&ds_url_v=2&albcp=19366866438&albag=&isSmbAutoCall=false&needSmbHouyi=false&gad_source=1&gad_campaignid=17337458112&gclid=Cj0KCQjwhafEBhCcARIsAEGZEKKTgezmjLfd6-vxiWMkAzmBpETHMV6oXWkoH2YCoXS5DXzKvOlwE_EaAowGEALw_wcB
Resistor330R for led strip1FreeAlready have
Capacitor THT100uF for led strip503.47moq = 50https://www.aliexpress.com/item/1005002075527957.html?spm=a2g0o.productlist.main.6.c9e31aabWPIuSl&aem_p4p_detail=202507301701432974626457630600002074851&algo_pvid=98081cf6-03af-4a13-96bb-a4806a8f4a70&algo_exp_id=98081cf6-03af-4a13-96bb-a4806a8f4a70-5&pdp_ext_f=%7B%22order%22%3A%221470%22%2C%22eval%22%3A%221%22%7D&pdp_npi=4%40dis%21USD%213.81%210.99%21%21%213.81%210.99%21%402103205117539201031484034e6f50%2112000018654903109%21sea%21CA%212723362424%21ACX&curPageLogUid=7kJUGz1bNEBX&utparam-url=scene%3Asearch%7Cquery_from%3A&search_p4p_id=202507301701432974626457630600002074851_2
JST conn 3Pin2.54 Pitch, right angle XH503.46for led strip and rotary encoder attachment that i'll solder myself cause its cheaperhttps://www.aliexpress.us/item/33008489410.html?spm=a2g0o.cart.0.0.59e438dacPG6sZ&mp=1&pdp_npi=5%40dis%21USD%21USD%201.57%21USD%201.57%21%21USD%201.57%21%21%21%402103247017539157468407310ee33f%2167049563012%21ct%21US%212723362424%21%211%210&pdp_ext_f=%7B%22cart2PdpParams%22%3A%7B%22pdpBusinessMode%22%3A%22retail%22%7D%7D&gatewayAdapt=4itemAdapt
Encoder board(five boards, 2 pcba)$22.59PCBA since buying the rotary encoder on its own would be $20+ due to shipping, the PCBA is only for the rotary encoder, the only other component is a JST conn which i'll solder
Main PCB (five boards, 2 pcba)2 assembled pcbs COMPONENTS LISTED BELOW(five boards, 2 pcba)$59.21Some parts are omitted for me to buy it myself and solder as it would be cheaper
1k5040220.0012C25867https://jlcpcb.com/partdetail/26610-0402WGF1501TCE/C25867
ESP-12FESP-12F24.431C82891https://jlcpcb.com/partdetail/AiThinker-ESP_12F_ESP8266MOD/C82891
ADG884xCPAnalog switch25.649C140435https://jlcpcb.com/partdetail/AnalogDevices-ADG884BRMZ/C140435
4k7040260.003C25900https://jlcpcb.com/partdetail/26643-0402WGF4701TCE/C25900
SHT31-DISSensirion temp/humidity sensor27.446C80862https://jlcpcb.com/partdetail/Sensirion-SHT31_DIS_B25kS/C80862
10k0402120.006C25744https://jlcpcb.com/partdetail/26487-0402WGF1002TCE/C25744
330R060320.0022C23138https://jlcpcb.com/partdetail/23865-0603WAF3300T5E/C23138
16MHzC13738OSC_X322516MLB4SI20.1284C13738https://jlcpcb.com/partdetail/YXC_CrystalOscillators-X322516MLB4SI/C13738
100uF120620.123C15008https://jlcpcb.com/partdetail/15681-CL31A107MQHNNNE/C15008
100nF060340.0092C14663https://jlcpcb.com/partdetail/YAGEO-CC0603KRX7R9BB104/C14663
JS102011JCQNSW_JS102011JCQN22.106C221659https://jlcpcb.com/partdetail/CK-JS102011JCQN/C221659
DiodeD_SMA40.1104C8678https://jlcpcb.com/partdetail/MDD_Microdiode_Semiconductor-SS34/C8678
YELLOW080540.05C2296https://jlcpcb.com/partdetail/Hubei_KENTOElec-KT0805Y/C2296
GREEN080540.0428C2297https://jlcpcb.com/partdetail/Hubei_KENTOElec-KT0805G/C2297
AO3401ASOT23-320.1174C15127https://jlcpcb.com/partdetail/Alpha_OmegaSemicon-AO3401A/C15127
10uF080560.0642C15850https://jlcpcb.com/partdetail/16532-CL21A106KAYNNNE/C15850
12pF040240.004C1547https://jlcpcb.com/partdetail/1899-0402CG120J500NT/C1547
CH340NSOP-8_3.9x4.9mm_P1.27mm21.02C2977777https://jlcpcb.com/partdetail/WCH_Jiangsu_Qin_Heng-CH340N/C2977777
100nF0402120.0132C1525https://jlcpcb.com/partdetail/1877-CL05B104KO5NNNC/C1525
5k1040240.002C25905https://jlcpcb.com/partdetail/26648-0402WGF5101TCE/C25905
ATmega328P-ATQFP-32_7x7mm_P0.8mm24.407C14877https://jlcpcb.com/partdetail/MicrochipTech-ATMEGA328PAU/C14877
TP4057TSOT-23-660.2622C725791https://jlcpcb.com/partdetail/772194-TP4057/C725791
1uF060360.0282C15849https://jlcpcb.com/partdetail/16531-CL10A105KB8NNNC/C15849
TS-1187A-B-A-BSW_TS-1187A-B-A-B20.0372C318884https://jlcpcb.com/partdetail/XKBConnection-TS_1187A_B_AB/C318884
10k060320.0018C25804https://jlcpcb.com/partdetail/26547-0603WAF1002T5E/C25804
1k060320.002C21190https://jlcpcb.com/partdetail/21904-0603WAF1001T5E/C21190
330R080520.0036C17630https://jlcpcb.com/partdetail/18318-0805W8F3300T5E/C17630
XC6206P332MRSOT-23-320.2046C5446https://jlcpcb.com/partdetail/TorexSemicon-XC6206P332MRG/C5446
JST conn 2Pin501.65cheaper than getting on jlc as it is an extended parthttps://www.aliexpress.us/item/33008489410.html?spm=a2g0o.cart.0.0.59e438dacPG6sZ&mp=1&pdp_npi=5%40dis%21USD%21USD%201.57%21USD%201.57%21%21USD%201.57%21%21%21%402103247017539157468407310ee33f%2167049563012%21ct%21US%212723362424%21%211%210&pdp_ext_f=%7B%22cart2PdpParams%22%3A%7B%22pdpBusinessMode%22%3A%22retail%22%7D%7D&gatewayAdapt=4itemAdapt
LIS3DHTRAccelerometer52.07https://www.aliexpress.com/item/1005006382321606.html?spm=a2g0o.productlist.main.2.8cc447cbAleP39&aem_p4p_detail=202507301559151645124693583640002013730&algo_pvid=77351851-b790-4232-9931-106025719c2d&algo_exp_id=77351851-b790-4232-9931-106025719c2d-1&pdp_ext_f=%7B%22order%22%3A%2214%22%2C%22eval%22%3A%221%22%7D&pdp_npi=4%40dis%21USD%212.07%212.07%21%21%2114.77%2114.77%21%402103244417539163558297165ed7e1%2112000036971142144%21sea%21CA%212723362424%21ACX&curPageLogUid=txmemcFKp5VV&utparam-url=scene%3Asearch%7Cquery_from%3A&search_p4p_id=202507301559151645124693583640002013730_1
SW-DIP-021freewill get it myself
Aliexpress shipping5.63
JLC shipping$27.80
TOTAL: $148.82 (128.82 after JLC coupon)
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