Digital test board
About the Digital test board
Digital test board is an open source ESP32 PCB design by Benjamin-girard-1, published on GitHub. It is a 4-layer board measuring 193 × 110 mm, with 254 components from 70 distinct parts.
Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the TPS61170, LT3042XMSE, TPS61040DBV, C5947 and CP2102-GMR. By type, the board carries 94 resistors, 86 capacitors, 25 diodes, 18 ICs, 13 connectors and 7 transistors.
Main components on the Digital test board
Digital test board bill of materials (BOM)
254 components, 70 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPS61170 | WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm | U1 |
| 1 | LT3042XMSE LT3042xMSE | MSOP-10-1EP_3x3mm_P0.5mm_EP1.68x1.88mm | U2 |
| 1 | TPS61040DBV | SOT-23-5 | U3 |
| 1 | C5947 74HC595D,118 | SOIC-16_3.9x9.9mm_P1.27mm | U4 |
| 1 | ESP32-S3-WROOM-1 | ESP32-S3-WROOM-1 | U5 |
| 1 | CP2102-GMR | QFN-28-1EP_5x5mm_P0.5mm_EP3.25x3.25mm | U6 |
| 1 | ISM330DHCXTR | LGA-14_3x2.5mm_P0.5mm_LayoutBorder3x4y | U7 |
| 3 | TPS25210LRPWR | VQFN-HR-10 | U8, U9, U11 |
| 1 | TS3A27518EPWR TS3A27518ERTW | TSSOP-24_4.4x7.8mm_P0.65mm | U10 |
| 1 | TPS54331DR | SOIC-8_3.9x4.9mm_P1.27mm | U12 |
| 1 | TPS7A2033PDBVR | SOT-23-5 | U13 |
| 1 | TPS7A4901DGNR | HVSSOP-8-1EP_3x3mm_P0.65mm_EP1.57x1.89mm | U14 |
| 1 | TPS63700DRCR | VSON-10-1EP_3x3mm_P0.5mm_EP1.2x2mm | U15 |
| 1 | TPS7A3301RGWR | Texas_RGW0020A_VQFN-20-1EP_5x5mm_P0.65mm_EP3.15x3.15mm | U16 |
| 1 | GL3224-OIY04 | QFN-32-1EP_5x5mm_P0.5mm_EP3.1x3.1mm | U17 |
| 1 | HD3SS3220RNHR | Texas_RNH0030A_WQFN-30-1EP_2.5x4.5mm_P0.4mm_EP1.2x3.2mm | U18 |
| 2 | S8050 | SOT-23 | Q1, Q2 |
| 3 | AO3400A | SOT-23 | Q3, Q5, Q7 |
| 2 | AO3401A | SOT-23 | Q4, Q6 |
| 1 | X322525MOB4SI | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
Show 50 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 10 | Conn_01x03 | PinHeader_1x03_P2.54mm_Vertical | J1, J2, J3, J7, J8, J9, J10, J11 +2 |
| 2 | C565324 USB_C_RECEPTACLE_MOLEX | CONN_201267-0005_MOL | J4, J5 |
| 1 | C428492 Micro_SD_CARD | CONN_503398-1892_MOL | J6 |
| 2 | TS-1088-AR02016 | TS-1088-AR02016 | SW1, SW2 |
| 3 | TestPoint | TestPoint_THTPad_1.0x1.0mm_Drill0.5mm | TP1, TP2, TP3 |
| 6 | SS34 | D_SMA | D1, D2, D22, D23, D24, D25 |
| 1 | KT-0805G | LED_0805_2012Metric | D3 |
| 1 | KT-0603W | LED_0603_1608Metric | D4 |
| 1 | NCD0805R1 | LED_0805_2012Metric | D5 |
| 2 | P6SMB6.8CA | D_SMB | D6, D19 |
| 14 | H5VUD5BB | D_SOD-523 | D7, D8, D9, D10, D11, D12, D13, D14 +6 |
| 1 | C14709 FerriteBead | L_0603_1608Metric | FB1 |
| 4 | 10U 10u | L_Sunlord_MWSA0503S | L1, L2, L3, L4 |
| 12 | 10U 10u | C_0805_2012Metric | C1, C7, C12, C19, C22, C27, C33, C36 +4 |
| 10 | 4U7 4u7 | C_1206_3216Metric | C2, C4, C9, C10, C46, C49, C63, C64 +2 |
| 9 | 10N 10n | C_0603_1608Metric | C3, C23, C28, C42, C43, C51, C53, C60 +1 |
| 1 | 22P 22p | C_0603_1608Metric | C5 |
| 9 | 1u | C_0805_2012Metric | C6, C13, C20, C25, C31, C34, C69, C71 +1 |
| 30 | 100N 100n | C_0603_1608Metric | C8, C11, C14, C15, C16, C17, C18, C21 +22 |
| 3 | 1n | C_0603_1608Metric | C24, C29, C44 |
| 2 | 22U 22u | C_1206_3216Metric | C37, C38 |
| 2 | 47U 47u | C_1206_3216Metric | C39, C61 |
| 2 | 4N7 4n7 | C_0603_1608Metric | C40, C67 |
| 2 | 10P 10p | C_0603_1608Metric | C41, C56 |
| 1 | 470mF | C_Radial_D8.0mm_P11.50mm | C45 |
| 1 | 220N 220n | C_0603_1608Metric | C55 |
| 2 | 18P 18p | C_0603_1608Metric | C85, C86 |
| 18 | 0 | R_1206_3216Metric | R1, R6, R7, R11, R52, R53, R54, R57 +10 |
| 1 | 49K9 49k9 | R_0603_1608Metric | R2 |
| 16 | 100K 100k | R_0603_1608Metric | R3, R13, R26, R27, R29, R35, R41, R44 +8 |
| 16 | 10K 10k | R_0603_1608Metric | R4, R14, R17, R18, R19, R20, R21, R24 +8 |
| 1 | 3K6 3k6 | R_0603_1608Metric | R5 |
| 2 | 510K 510k | R_0603_1608Metric | R8, R80 |
| 4 | 2k | R_0603_1608Metric | R9, R33, R38, R63 |
| 4 | 200K 200k | R_0603_1608Metric | R10, R30, R36, R58 |
| 1 | 90K9 90k9 | R_1206_3216Metric | R12 |
| 2 | 22 | R_0603_1608Metric | R15, R16 |
| 1 | 470 | R_0603_1608Metric | R22 |
| 1 | 1k | R_0603_1608Metric | R23 |
| 5 | 470K 470k | R_0603_1608Metric | R28, R34, R55, R93, R94 |
| 6 | 39K 39k | R_0603_1608Metric | R31, R37, R59, R65, R75, R87 |
| 6 | 100 | R_0603_1608Metric | R39, R40, R66, R67, R88, R89 |
| 2 | 5K1 5k1 | R_0603_1608Metric | R42, R43 |
| 1 | 75K 75k | R_0603_1608Metric | R60 |
| 1 | 24K 24k | R_0603_1608Metric | R62 |
| 1 | 22 | R_2512_6332Metric | R69 |
| 1 | 12K 12k | R_0603_1608Metric | R76 |
| 1 | 10 | R_0603_1608Metric | R78 |
| 2 | 330K 330k | R_0603_1608Metric | R85, R90 |
| 1 | 680 | R_0603_1608Metric | R96 |
Digital test board design files
The KiCad project lives in the Benjamin-girard-1/magnetometer-node-old repository on GitHub; these links point at the commit this page was built from.
Digital test board: common questions
What microcontroller does the Digital test board use?
The Digital test board is built around the ESP32-S3-WROOM-1, from the ESP32 family.
How big is the Digital test board?
The Digital test board measures 193 × 110 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Digital test board?
254 components, from 70 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 Digital test board design files?
From the Benjamin-girard-1/magnetometer-node-old 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 Digital test board design in my own project?
The repository has no license, so all rights stay with Benjamin-girard-1. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Digital test board 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.
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