PCB V3.1
About the PCB V3.1
PCB V3.1 is an open source ESP32 PCB design by Jonathan-0101, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 80 × 160 mm, with 287 components from 124 distinct parts.
Its main chip is the ESP32-S3-WROOM-1U-N16R2, from the ESP32 family. Other key parts include the TPS61023DRLT, CC1101RGPR, PN5321A3HN/C106,55, C8051F330-GM and DG2001EDV-T1-GE3. By type, the board carries 122 capacitors, 59 resistors, 30 inductors, 27 ICs, 9 connectors and 9 diodes.
It belongs with the iot & wireless designs in this gallery, and the repository also holds 8 earlier revisions of it.
From the project
BEng Dissertation; Penetration-testing device to highlight security system vulnerabilities
The schematics and PCB designs for the device are contained in this directory, designed in KiCad.
It would not have been possible to create the project without the assistance of open source designs and resources, most notibly from Adafruit Industries and Flipper Devices
Main components on the PCB V3.1
PCB V3.1 bill of materials (BOM)
287 components, 124 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPS61023DRLT | SOTFL50P160X60-6N | IC1 |
| 2 | CC1101RGPR | QFN50P400X400X100-21N-D | IC2, IC6 |
| 1 | PN5321A3HN/C106,55 PN5321A3HN_C106,55 | HVQFN-40-1EP_6x6mm_P0.5mm_EP4.1x4.1mm_ThermalVias | IC3 |
| 1 | C8051F330-GM | QFN50P400X400X100-21N-D | IC4 |
| 2 | DG2001EDV-T1-GE3 | SOT95P284X110-6N | IC5, IC7 |
| 1 | MCP73831-2-OT | SOT-23-5 | U1 |
| 1 | USBLC6-2P6 | SOT-666 | U2 |
| 1 | TLV70036_SOT23-5 | SOT-23-5 | U3 |
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U4 |
| 1 | TSOP382xx | Vishay_MINICAST-3Pin | U5 |
| 1 | CP2104 | QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm | U6 |
| 1 | ESD7104MUTAG | Diodes_UDFN-10_1.0x2.5mm_P0.5mm | U7 |
| 1 | 4050 | SOIC-16_3.9x9.9mm_P1.27mm | U8 |
| 1 | ESP32-S3-WROOM-1U-N16R2 | ESP32-S3-WROOM-1U_EXP | U9 |
| 1 | nRF24L01P | QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm | U10 |
| 8 | PE4251MLI-Z | SOP65P490X106-9N | U11, U13, U14, U15, U16, U17, U18, U20 |
| 1 | RFX2401C | RFX2401C_SKY | U12 |
| 1 | LM358 | SOIC127P600X175-8N | U19 |
| 1 | DMG3415U | SOT95P240X105-3N | Q1 |
| 1 | DMN2058U | SOT-23 | Q2 |
Show 104 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | UMH3N | SOT-363_SC-70-6 | Q3 |
| 1 | PZT3904 | SOT-223-3_TabPin2 | Q4 |
| 1 | Q_NPN_BEC | TSOT-23_HandSoldering | Q5 |
| 1 | Q_PNP_BEC | TSOT-23_HandSoldering | Q6 |
| 1 | MMBT5551L | SOT-23 | Q7 |
| 2 | 26MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm_HandSoldering | Y1, Y4 |
| 1 | 16M | XTAL_7M-27.120MAAJ-T | Y2 |
| 1 | 27.12M | XTAL_7M-27.120MAAJ-T | Y3 |
| 1 | Conn_01x02 | PinSocket_1x02_P2.54mm_Vertical | J1 |
| 1 | Conn_01x02_Pin | PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | MEM2061-01-188-00-A_REVA | GCT_MEM2061-01-188-00-A_REVA | J3 |
| 1 | PN532_Antenna_Coax | U.FL_Molex_MCRF_73412-0110_Vertical | J5 |
| 1 | RDM630_ANT_CONN | PinHeader_1x02_P2.54mm_Vertical | J6 |
| 1 | Wi-Fi_ANT_Coax | U.FL_Molex_MCRF_73412-0110_Vertical | J7 |
| 2 | Conn_01x14 | PinSocket_1x14_P1.27mm_Vertical | J8, J10 |
| 1 | Conn_01x12 | PinSocket_1x12_P1.27mm_Vertical | J9 |
| 1 | Antenna_CC1101A_SMA | SMA_Molex_73251-1153_EdgeMount_Horizontal | AE1 |
| 1 | Antenna_CC1101A_PCB | XDCR_ANT-433-HESM | AE2 |
| 1 | Antenna_CC1101B_SMA | SMA_Molex_73251-1153_EdgeMount_Horizontal | AE3 |
| 1 | Antenna_CC1101B_PCB | XDCR_ANT-433-HESM | AE4 |
| 1 | Antenna_NRF24_SMA | SMA_Molex_73251-1153_EdgeMount_Horizontal | AE5 |
| 1 | Antenna_NRF24_IPEX | U.FL_Molex_MCRF_73412-0110_Vertical | AE6 |
| 1 | Antenna_Wi-Fi_SMA | SMA_Molex_73251-1153_EdgeMount_Horizontal | AE7 |
| 1 | Antenna_Wi-Fi_TBAR | U.FL_Molex_MCRF_73412-0110_Vertical | AE8 |
| 2 | 734-7296 | PWR-SW | ANT_SW1, PWR_SW1 |
| 2 | 1-1825027-2 | 118250272 | BOOT1, RESET1 |
| 1 | MBR120 | SDO_SOD-123FL498_OSI | CR1 |
| 1 | Polyfuse 1A | Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F1 |
| 2 | B0310J50100AHF | B0310J50100AHF | FL1, FL2 |
| 1 | Battery Plug | JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | JSTPH1 |
| 1 | ~ | 4.0_TFT_Display | SCREEN1 |
| 2 | USB_C_Receptacle_USB2.0_16P | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | USB_OTG1, USB_UART1 |
| 1 | 1N4148WT | D_SOD-523 | D1 |
| 1 | Charging_LED | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D2 |
| 1 | Power_LED | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D3 |
| 1 | IR204A | LED_D3.0mm_IRBlack | D4 |
| 1 | SD_ACT_LED | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D5 |
| 3 | D | D_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D6, D7, D8 |
| 1 | ANT_LED | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D9 |
| 1 | BLM21PG221 | L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | FB1 |
| 2 | FerriteBead | BEADC2012X145N | FB2, FB4 |
| 1 | FerriteBead_Small | BEADC2012X145N | FB3 |
| 1 | 1u | L_Changjiang_FNR5045S | L1 |
| 1 | 8.2n | L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L2 |
| 3 | 2.7n | L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L3, L8, L21 |
| 6 | 0 | L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L4, L5, L7, L18, L19, L20 |
| 1 | 3.9n | L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L6 |
| 2 | 560n | L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L9, L10 |
| 2 | 56n | L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L11, L22 |
| 2 | 3.3n | L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L12, L23 |
| 2 | 6.8n | L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L13, L24 |
| 2 | 2.4n | L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L14, L15 |
| 2 | ~ | L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L16, L25 |
| 2 | 2.2n | L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L17, L26 |
| 2 | 1u | CP_EIA-2012-12_Kemet-R_Pad1.30x1.05mm_HandSolder | C1, C5 |
| 5 | 22u | CP_EIA-2012-12_Kemet-R_Pad1.30x1.05mm_HandSolder | C2, C8, C13, C15, C16 |
| 9 | 10u | CP_EIA-2012-12_Kemet-R_Pad1.30x1.05mm_HandSolder | C3, C11, C18, C22, C41, C56, C64, C86 +1 |
| 3 | 100n | CP_EIA-2012-12_Kemet-R_Pad1.30x1.05mm_HandSolder | C4, C10, C14 |
| 34 | 0.1u | CP_EIA-2012-12_Kemet-R_Pad1.30x1.05mm_HandSolder | C6, C12, C17, C19, C20, C21, C24, C25 +26 |
| 1 | 4u7 | CP_EIA-2012-12_Kemet-R_Pad1.30x1.05mm_HandSolder | C7 |
| 1 | 33n | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C23 |
| 4 | 9p | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C26, C27, C89, C90 |
| 4 | NC | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C28, C29, C35, C38 |
| 6 | 100p | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C30, C31, C62, C63, C107, C108 |
| 4 | 22p | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C33, C34, C42, C43 |
| 2 | 220p | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C36, C37 |
| 5 | 0.1u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C44, C55, C59, C65, C83 |
| 15 | ~ | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C45, C53, C54, C71, C80, C82, C84, C96 +7 |
| 2 | 8.2p | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C46, C97 |
| 1 | 2.2n | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C47 |
| 1 | 4.7p | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C48 |
| 5 | 1.5p | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C49, C74, C78, C79, C81 |
| 2 | 10u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C50, C75 |
| 1 | 1p | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C51 |
| 1 | 1000p | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C57 |
| 2 | 0.6p | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C61, C104 |
| 1 | 0.3p | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C69 |
| 2 | 33p | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C73, C76 |
| 2 | 1.2p | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C77, C116 |
| 2 | 3.3n | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C95, C98 |
| 2 | 1n | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C102, C115 |
| 2 | 4.7u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C106, C120 |
| 1 | 100n | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C117 |
| 1 | 4.7K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 7 | 10K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R4, R13, R15, R16, R23, R43 |
| 1 | 150 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 4 | 5k1 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5, R8, R9, R11 |
| 1 | 22 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6 |
| 3 | 100k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7, R12, R20 |
| 4 | 1.5K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R10, R14, R24, R59 |
| 2 | 22R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R17, R18 |
| 1 | 732k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R19 |
| 3 | 330 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R21, R30, R42 |
| 1 | 50 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R22 |
| 1 | 22k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R25 |
| 2 | NC | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R26, R27 |
| 2 | 1.5 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R28, R29 |
| 5 | 1M | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R31, R48, R49, R52, R57 |
| 1 | 1.69K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R32 |
| 2 | 56K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R33, R47 |
| 12 | 1K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R34, R35, R36, R40, R41, R44, R45, R50 +4 |
| 1 | 20K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R37 |
| 4 | 0 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R38, R39, R51, R53 |
| 1 | 10R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R46 |
PCB V3.1 design files
The KiCad project lives in the Jonathan-0101/skeletonKey repository on GitHub; these links point at the commit this page was built from.
PCB V3.1: common questions
What microcontroller does the PCB V3.1 use?
The PCB V3.1 is built around the ESP32-S3-WROOM-1U-N16R2, from the ESP32 family.
How big is the PCB V3.1?
The PCB V3.1 measures 80 × 160 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the PCB V3.1?
287 components, from 124 distinct parts. The full bill of materials is listed on this page.
Where can I download the PCB V3.1 design files?
From the Jonathan-0101/skeletonKey repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the PCB V3.1 design in my own project?
Yes, under the terms of its GPL-3.0 license, which Jonathan-0101 chose for the repository.
Can I test firmware for the PCB V3.1 without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
More boards in skeletonKey
Earlier revisions in the repo: PCB V2.4, PCB V2.3, PCB V2.2, PCB V2.1, PCB V2.0, PCB V1.1, PCB V1.0, PCB
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