KigEyes
About the KigEyes PCB
KigEyes is an open source STM32 PCB design by jrymk, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 100 × 60 mm, with 256 components from 103 distinct parts.
Its main chip is the STM32G071KBUX, from the STM32 family. Other key parts include the TPS61288, BQ25306, INA226, LM73100 and TPS3700. By type, the board carries 102 resistors, 91 capacitors, 27 ICs, 12 diodes, 8 connectors and 7 transistors.
It belongs with the power & battery designs in this gallery.
From the project
Video passthrough and electronic eye for Kigurumi masks
- Type C (custom protocol) power input (up to 15V) from kigeyes-power-io-board, includes single USB 2.0, dual USB 3.2 Gen 1, and I2C - Raspberry Pi Compute Module 5 - HDMI to DisplayPort to Type C DP Alt mode converter - MIPI camera multiplexer to connect up to 4 cameras (2 active at once)
- USB PD input (up to 15V 3A) - 1S LiFePO4 BQ25306 charger (up to 3A) and voltage booster - Type C (custom protocol) power output (5~15V) to kigeyes-mainboard - USB 2.0 hub - USB Type C DFP (5V 1.5A, USB 3.2 Gen 1, PD-compliant) - USB Type A DFP (5V 0.9A guaranteed, USB 3.2 Gen 1) - USB Port AUX (JST PH…
Main components on the KigEyes
KigEyes bill of materials (BOM)
256 components, 103 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPS61288 | Texas_VQFN-HR-20_3x2.5mm_P0.5mm_RQQ0011A | U101 |
| 1 | BQ25306 | WQFN-16-1EP_3x3mm_P0.5mm_EP1.68x1.68mm | U102 |
| 2 | INA226 | TSSOP-10_3x3mm_P0.5mm | U103, U107 |
| 3 | LM73100 | Texas VQFN-HR 2x2mm RPW0010A | U104, U105, U108 |
| 1 | STM32G071KBUX STM32G071KBUx | QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm | U106 |
| 1 | TPS3700 | SOT-23-6 | U109 |
| 1 | TPS25820 | Texas WSON-12 P0.5mm 3x2mm EP2.65x1mm DSS0012B | U201 |
| 1 | HD3SS3202 | Texas UQFN-16_1.8x2.6mm_P0.4mm RSV0016A | U202 |
| 4 | TPD4E02B04DQA | Texas USON-10_2.5x1.0mm_P0.5mm DQA0010A | U203, U205, U303, U701 |
| 3 | USBLC6-2P6 | SOT-666 | U204, U302, U1002 |
| 2 | TPS2553 | WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm | U301, U1001 |
| 1 | USB2514B_BI USB2514B_Bi | QFN-36-1EP_6x6mm_P0.5mm_EP3.7x3.7mm | U401 |
| 1 | TPS56C230 | VQFN-20_EP_3x3_Pitch0.45mm_RJE0020B | U501 |
| 1 | TPS62130A | VQFN-16-1EP_3x3mm_P0.5mm_EP1.68x1.68mm | U601 |
| 1 | TVS2200DRV | WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm | U702 |
| 1 | HUSB238_002DD | WDFN-10-1EP_3x3mm_P0.5mm_EP1.8x2.5mm | U703 |
| 1 | TPS54335ADRCR | Texas_DRC0010J | U901 |
| 1 | MT3608 | SOT-23-6 | U902 |
| 3 | 2N7002 | SOT-23 | Q101, Q104, Q901 |
| 1 | NCE40P13S | SOP-8_3.76x4.96mm_P1.27mm_NCE40P13S | Q102 |
Show 83 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AO3400A | SOT-23 | Q103 |
| 1 | MMBT3904 | SOT-23 | Q105 |
| 1 | NCE60P04Y | SOT-23 | Q902 |
| 1 | 24MHz | Crystal_SMD_SeikoEpson_FA238-4Pin_3.2x2.5mm | Y401 |
| 1 | CONN_01X02_MOUNTINGPIN Conn_01x02_MountingPin | JST_PH_S2B-PH-SM4-TB_1x02-1MP_P2.00mm_Horizontal | J101 |
| 1 | XT30 | AMASS_XT30PW-M_1x02_P2.50mm_Horizontal | J102 |
| 1 | JST_PH_4P Conn_01x04_MountingPin | JST_XH_S4B-XH-SM4-TB_1x04-1MP_P2.50mm_Horizontal | J104 |
| 3 | USB_C_Receptacle | USB_C_Receptacle_GCT_USB4080 | J201, J701, J801 |
| 1 | USB3_A | USB3_A_GCT-USB1135 | J301 |
| 1 | CONN_01X04_MOUNTINGPIN Conn_01x04_MountingPin | JST_PH_S4B-PH-SM4-TB_1x04-1MP_P2.00mm_Horizontal | J1001 |
| 1 | SW_Push | SW_Tactile_SPST_Angled_PTS645Vx58-2LFS | SW101 |
| 1 | Thermistor_NTC | R_0402_1005Metric | TH101 |
| 5 | SD103AWT | D_SOD-523 | D101, D102, D103, D104, D105 |
| 6 | WS2812B | WS2812B-1515 | D106, D107, D108, D109, D110, D111 |
| 1 | DSK34 SP1060L | TO-277B | D901 |
| 2 | 2U2 2u2 | L_CKST1004 | L101, L501 |
| 1 | 2U2 2u2 | L_CKST0503 | L102 |
| 1 | 3U3 3u3 | L_CKST0503 | L601 |
| 2 | 10U 10u | L_CKST0605 | L901, L902 |
| 8 | 22U 22u | C_0603_1608Metric | C101, C102, C202, C203, C302, C604, C605, C1002 |
| 20 | 100N 100n | C_0402_1005Metric | C103, C105, C122, C128, C129, C132, C204, C205 +12 |
| 2 | 2U2 2u2 | C_0402_1005Metric | C104, C107 |
| 3 | 2u2 25V | C_0603_1608Metric | C106, C126, C133 |
| 1 | 1n | C_0402_1005Metric | C108 |
| 6 | 10N 10n | C_0402_1005Metric | C109, C110, C114, C120, C123, C131 |
| 1 | 10u 25V | C_0805_2012Metric | C111 |
| 1 | 30P 30p | C_0402_1005Metric | C112 |
| 13 | 22u 25V | C_0805_2012Metric | C113, C116, C119, C121, C501, C502, C503, C601 +5 |
| 2 | 47N 47n | C_0402_1005Metric | C115, C505 |
| 1 | 470P 470p | C_0402_1005Metric | C117 |
| 1 | 10U 10u | C_0603_1608Metric | C118 |
| 4 | 3N3 3n3 | C_0402_1005Metric | C124, C125, C130, C603 |
| 3 | 4U7 4u7 | C_0603_1608Metric | C127, C206, C414 |
| 2 | 100n | C_0402_1005Metric | C134, C135 |
| 3 | 100U 100u | CP_Elec_6.3x5.8 | C201, C303, C1003 |
| 2 | 15P 15p | C_0402_1005Metric | C401, C402 |
| 1 | 220N 220n | C_0402_1005Metric | C405 |
| 3 | 1u | C_0402_1005Metric | C406, C407, C506 |
| 3 | 100n 25V | C_0603_1608Metric | C504, C602, C906 |
| 1 | 47P 47p | C_0402_1005Metric | C508 |
| 2 | 100U 100u | C_1210_3225Metric | C509, C510 |
| 1 | 1u 25V | C_0603_1608Metric | C701 |
| 1 | 100n 50V | C_0603_1608Metric | C902 |
| 1 | 12N 12n | C_0402_1005Metric | C904 |
| 1 | 120P 120p | C_0402_1005Metric | C905 |
| 4 | 10u 50V | C_0805_2012Metric | C908, C910, C912, C914 |
| 6 | 1k | R_0402_1005Metric | R101, R119, R130, R147, R905, R908 |
| 7 | 10K 10k | R_0402_1005Metric | R102, R103, R105, R146, R155, R909, R911 |
| 34 | 100K 100k | R_0402_1005Metric | R104, R106, R113, R118, R131, R135, R140, R150 +26 |
| 1 | 2K2 2k2 | R_0402_1005Metric | R107 |
| 5 | 4K7 4k7 | R_0402_1005Metric | R108, R109, R139, R152, R153 |
| 1 | 140K 140k | R_0402_1005Metric | R110 |
| 1 | 19K1 19k1 | R_0402_1005Metric | R111 |
| 1 | 36K5 36k5 | R_0402_1005Metric | R112 |
| 1 | 13K3 13k3 | R_0402_1005Metric | R114 |
| 1 | 14K 21k | R_0402_1005Metric | R115 |
| 8 | 330K 330k | R_0402_1005Metric | R116, R122, R125, R128, R142, R144, R156, R501 |
| 4 | 39K 39k | R_0402_1005Metric | R117, R126, R129, R904 |
| 1 | 4K53 4k53 | R_0402_1005Metric | R120 |
| 1 | 23K2 23k2 | R_0402_1005Metric | R121 |
| 1 | 75K 82k | R_0402_1005Metric | R123 |
| 1 | 180K 180k | R_0402_1005Metric | R124 |
| 1 | 2m | R_2512_6332Metric | R127 |
| 1 | 150k | R_0402_1005Metric | R132 |
| 1 | 280K 56k | R_0402_1005Metric | R133 |
| 1 | 249K 249k | R_0402_1005Metric | R134 |
| 3 | 560R | R_0402_1005Metric | R137, R138, R154 |
| 2 | 33K 33k | R_0402_1005Metric | R141, R151 |
| 3 | 68K 68k | R_0402_1005Metric | R143, R145, R157 |
| 1 | 10K 10k | R_0805_2012Metric | R148 |
| 1 | 3m | R_1206_3216Metric | R149 |
| 1 | 820K 820k | R_0402_1005Metric | R158 |
| 1 | 51K 51k | R_0402_1005Metric | R159 |
| 1 | 105K 105k | R_0402_1005Metric | R160 |
| 1 | 220R | R_0402_1005Metric | R164 |
| 2 | 20K 20k | R_0402_1005Metric | R303, R1003 |
| 1 | 1M | R_0402_1005Metric | R401 |
| 1 | 12K 12k | R_0402_1005Metric | R408 |
| 2 | 15K 15k | R_0402_1005Metric | R502, R505 |
| 1 | 110K 110k | R_0402_1005Metric | R504 |
| 1 | 312K 312k | R_0402_1005Metric | R601 |
| 1 | 6K8 6k8 | R_0402_1005Metric | R902 |
| 1 | 7K15 7k15 | R_0402_1005Metric | R907 |
KigEyes design files
The KiCad project lives in the jrymk/KigEyes repository on GitHub; these links point at the commit this page was built from.
KigEyes: common questions
What microcontroller does the KigEyes use?
The KigEyes is built around the STM32G071KBUX, from the STM32 family.
How big is the KigEyes PCB?
The KigEyes measures 100 × 60 mm, has 4 copper layers and is 1.0192 mm thick.
How many components are on the KigEyes?
256 components, from 103 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the KigEyes design files?
From the jrymk/KigEyes repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the KigEyes design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which jrymk chose for the repository.
Can I test firmware for the KigEyes without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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