ESP32-WROOM-32
About the ESP32-WROOM-32 PCB
ESP32-WROOM-32 is an open source ESP32 PCB design by 74th, published on GitHub under the MIT license. It is a 2-layer board measuring 25.4 × 34.3 mm, with 21 components from 19 distinct parts.
Its main chip is the ESP32-C3-MINI-1, from the ESP32 family. Other key parts include the AMS1117-3.3. By type, the board carries 5 capacitors, 5 resistors, 3 diodes, 2 ICs, 2 connectors and 2 switches.
It belongs with the dev boards & breakouts designs in this gallery.
From the project
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Main components on the ESP32-WROOM-32
ESP32-WROOM-32 bill of materials (BOM)
21 components, 19 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-C3-MINI-1 ESP32-WROOM-32D | ESP32-WROOM-32D | U1 |
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U2 |
| 1 | ESP-Prog-ProgramCOM-RECV | BoxPinHeader_2x03_P1.27mm_Vertical | J1 |
| 1 | USB2.0_C_v3 | USB-C-12-Pin-SMD | J2 |
| 1 | ProMicro-LeftPin | ProMicro_LIKE_LEFT_NO_GND | CH1 |
| 1 | ProMicro-RightPin | ProMicro_LIKE_RIGHT | CH2 |
| 1 | SKRPABE010 BT | SKRPABE010 | SW1 |
| 1 | SKRPABE010 RST | SKRPABE010 | SW2 |
| 2 | PWR | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1, D2 |
| 1 | D | D_SMA | D3 |
| 1 | 10U 100n | Capacitor_0805_2012 | C1 |
| 1 | 10U 10u | Capacitor_0805_2012 | C2 |
| 1 | 100N 1u | Capacitor_0805_2012 | C3 |
| 1 | 100N 100n | Capacitor_0805_2012 | C4 |
| 1 | 10u | Capacitor_0805_2012 | C5 |
| 1 | 5.1K 10k | Register_0805_2012 | R1 |
| 2 | 10K 10k | Register_0805_2012 | R2, R3 |
| 1 | 5.1K 5.1k | Register_0805_2012 | R4 |
| 1 | 10K 5.1k | Register_0805_2012 | R5 |
ESP32-WROOM-32 design files
The KiCad project lives in the 74th/esp32-dev-boards repository on GitHub; these links point at the commit this page was built from.
ESP32-WROOM-32: common questions
What microcontroller does the ESP32-WROOM-32 use?
The ESP32-WROOM-32 is built around the ESP32-C3-MINI-1, from the ESP32 family.
How big is the ESP32-WROOM-32 PCB?
The ESP32-WROOM-32 measures 25.4 × 34.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the ESP32-WROOM-32?
21 components, from 19 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 ESP32-WROOM-32 design files?
From the 74th/esp32-dev-boards 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 ESP32-WROOM-32 design in my own project?
Yes, under the terms of its MIT license, which 74th chose for the repository.
Can I test firmware for the ESP32-WROOM-32 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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