Piezzo
About the Piezzo PCB
Piezzo is an open source ESP32 PCB design by ilkercosar, published on GitHub. It is a 2-layer board measuring 80 × 80 mm, with 48 components from 29 distinct parts.
Its main chip is the ESP32-WROOM-32D, from the ESP32 family. Other key parts include the LM7812_TO220 and AMS1117-3.3. By type, the board carries 13 capacitors, 10 diodes, 9 resistors, 6 connectors, 5 transistors and 4 ICs.
Main components on the Piezzo
Piezzo bill of materials (BOM)
48 components, 29 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-WROOM-32D | ESP32-WROOM-32D | U1 |
| 1 | LM7812_TO220 | TO-220-3_Vertical | U2 |
| 2 | AMS1117-3.3 | SOT-223-3_TabPin2 | U3, U4 |
| 1 | BU407 | TO-220-3_Vertical | Q1 |
| 2 | 2N7002 | SOT-23 | Q2, Q5 |
| 1 | IRF9540N | TO-220-3_Vertical | Q3 |
| 1 | IRF540N | TO-220-3_Vertical | Q4 |
| 2 | OUT | PinHeader_1x02_P2.54mm_Vertical | J2, J3 |
| 1 | CODE | PinSocket_2x04_P2.54mm_Vertical | J4 |
| 1 | LCD | PinHeader_1x04_P2.54mm_Vertical | J6 |
| 1 | LED | PinHeader_1x02_P2.54mm_Vertical | J9 |
| 1 | MOTOR | PinHeader_1x02_P2.54mm_Vertical | J10 |
| 2 | SMBJ30CA | D_MELF | D1, D9 |
| 3 | SMAJ10CA | D_MELF | D2, D4, D6 |
| 2 | RS1M | D_MELF | D10, D11 |
| 3 | RS1A | D_MELF | D12, D13, D14 |
| 1 | 220uH | L_Radial_D10.0mm_P5.00mm_Fastron_07M | L1 |
| 2 | 1uF | C_0603_1608Metric | C1, C5 |
| 1 | 47uH | C_0603_1608Metric | C2 |
| 1 | 47uH | CP_Radial_D5.0mm_P2.50mm | C3 |
Show 9 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | 10uF | C_0603_1608Metric | C4, C10, C12 |
| 2 | 100nF | C_0603_1608Metric | C6, C7 |
| 2 | 330nF | C_0603_1608Metric | C8, C9 |
| 2 | 4.7uF | C_0603_1608Metric | C11, C13 |
| 2 | 2.2K | R_0603_1608Metric | R1, R2 |
| 1 | 10K | R_0603_1608Metric | R3 |
| 4 | 47K | R_0603_1608Metric | R12, R13, R16, R17 |
| 1 | 4.7K | R_0603_1608Metric | R14 |
| 1 | 1K | R_0603_1608Metric | R15 |
Piezzo design files
The KiCad project lives in the ilkercosar/Hardware-Desing repository on GitHub; these links point at the commit this page was built from.
Piezzo: common questions
What microcontroller does the Piezzo use?
The Piezzo is built around the ESP32-WROOM-32D, from the ESP32 family.
How big is the Piezzo PCB?
The Piezzo measures 80 × 80 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Piezzo?
48 components, from 29 distinct parts. The full bill of materials is listed on this page.
Where can I download the Piezzo design files?
From the ilkercosar/Hardware-Desing repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Piezzo design in my own project?
The repository has no license, so all rights stay with ilkercosar. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Piezzo 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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