TheSchaetzler
About the TheSchaetzler PCB
TheSchaetzler is an open source ESP32 PCB design by theBrutzler, published on GitHub. It is a 2-layer board measuring 56.5 × 21.5 mm, with 56 components from 30 distinct parts.
Its main chip is the ESP32-S3, from the ESP32 family. Other key parts include the C2868697, LN1134A332MR and MT3608. By type, the board carries 24 capacitors, 13 resistors, 6 connectors, 4 ICs, 2 transistors and 2 switches.
Main components on the TheSchaetzler
TheSchaetzler bill of materials (BOM)
56 components, 30 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C2868697 AP7383-41W5-7 TPS70939DBVR | TSOT-23-5 | U2 |
| 1 | LN1134A332MR | TSOT-23-5 | U3 |
| 1 | ESP32-S3 | QFN-56-1EP_7x7mm_P0.4mm_EP5.6x5.6mm | U4 |
| 1 | MT3608 | SOT-23-6 | U5 |
| 2 | BC817W | SOT-323_SC-70 | Q1, Q2 |
| 1 | 40MHZ 40MHz | Crystal_SMD_2016-4Pin_2.0x1.6mm | Y1 |
| 1 | C2926988 SSD1357 | TE_2-1734839-0_1x20-1MP_P0.5mm_Horizontal | J1 |
| 4 | CONN_01X01 Conn_01x01 | 120220-0202 | J4, J5, J6, J7 |
| 1 | USB_C_Receptacle_USB2.0 | ytc-tc85-125 | J8 |
| 1 | Antenna_Shield | RFANT5220110A2T | AE2 |
| 1 | SW_DIP_X01 SW_DIP_x01 | SW_SPDT_PCM12_Straight | SW1 |
| 1 | SW_Push | BX-TS-26-365CJ | SW3 |
| 1 | WS2812B_GEAENDERTES_SYMBOL CDBVRL140 | D_WBFBP | D1 |
| 1 | 2N2 2n2 | L_0402_1005Metric | L1 |
| 1 | L | L_0603_1608Metric | L2 |
| 3 | C315248 1µ | R_0402_1005Metric | C1, C2, C3 |
| 8 | C307413 1µ | R_0402_1005Metric | C4, C5, C10, C12, C14, C20, C21, C22 |
| 1 | C307413 15p | R_0402_1005Metric | C6 |
| 2 | C315248 10µ | R_0402_1005Metric | C7, C11 |
| 2 | 15P 15p | R_0402_1005Metric | C8, C9 |
Show 10 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 6 | 100N 100n | R_0402_1005Metric | C13, C15, C16, C17, C18, C19 |
| 1 | 1µ | R_0402_1005Metric | C23 |
| 1 | 15p | R_0402_1005Metric | C24 |
| 1 | 390K 21K | R_0402_1005Metric | R1 |
| 2 | 22 | R_0402_1005Metric | R2, R3 |
| 4 | 390K | R_0402_1005Metric | R5, R6, R11, R12 |
| 1 | 390K | R_0402_1005Metric | R7 |
| 3 | 5K1 | R_0402_1005Metric | R8, R9, R10 |
| 1 | 5K1 1MEG | R_0402_1005Metric | R13 |
| 1 | 5K1 | R_0402_1005Metric | R15 |
TheSchaetzler design files
The KiCad project lives in the theBrutzler/theSchaetzler repository on GitHub; these links point at the commit this page was built from.
TheSchaetzler: common questions
What microcontroller does the TheSchaetzler use?
The TheSchaetzler is built around the ESP32-S3, from the ESP32 family.
How big is the TheSchaetzler PCB?
The TheSchaetzler measures 56.5 × 21.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the TheSchaetzler?
56 components, from 30 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 TheSchaetzler design files?
From the theBrutzler/theSchaetzler 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 TheSchaetzler design in my own project?
The repository has no license, so all rights stay with theBrutzler. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the TheSchaetzler 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.
Earlier revisions in the repo: Messschieber_v2, Messschieber
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