Dev board
About the Dev board
Dev board is an open source ESP32 PCB design by rompasaurus, published on GitHub. It is a 2-layer board measuring 29 × 51.9 mm, with 21 components from 13 distinct parts.
Its main chip is the CP2102N-A02-GQFN24, from the ESP32 family. Other key parts include the ESP32-S3-WROOM-1. By type, the board carries 6 resistors, 5 capacitors, 3 connectors, 3 diodes, 2 ICs and 2 switches.
It belongs with the dev boards & breakouts and wearables designs in this gallery.
From the project
More details available with this video here
More details available with this video here
This is a super simple ESP32-S3 Dev Board with the bare mininum required to get it working.
- USB-C connector with 5.1K pull down resistors on CC1 and CC2 - 3V3 LDO Regulator - Decoupling Capacitors - indicated LEDs - 5V, 3V3, GPIO21
- Additonal ESD protection on the USB port - Battery charging and power path control - Any exciting peripherals
Main components on the Dev board
Dev board bill of materials (BOM)
21 components, 13 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CP2102N-A02-GQFN24 ESP32-S3-WROOM-1 | ESP32-S3-WROOM-1 | U2 |
| 1 | ESP32-S3-WROOM-1 LD1117S33TR_SOT223 | SOT-223-3_TabPin2 | U3 |
| 1 | CONN_02X05_ODD_EVEN TYPE-C-31-M-12 | HRO_TYPE-C-31-M-12 | J1 |
| 2 | Conn_01x20_Pin | PinHeader_1x20_P2.54mm_Vertical | J2, J3 |
| 2 | SKRTLAE010 TS-1088-AR02016 | SW-SMD_L3.9-W3.0-P4.45 | SW1, SW2 |
| 1 | RED | LED_0603_1608Metric | D1 |
| 1 | BAT760-7 GREEN | LED_0603_1608Metric | D2 |
| 1 | BLUE | LED_0603_1608Metric | D3 |
| 3 | 10u | C_0603_1608Metric | C1, C4, C5 |
| 1 | 22u | C_0603_1608Metric | C2 |
| 1 | 100n | C_0603_1608Metric | C3 |
| 1 | 1K8 5.1K | R_0603_1608Metric | R1 |
| 5 | 5.1K | R_0603_1608Metric | R2, R3, R4, R5, R6 |
Dev board design files
The KiCad project lives in the rompasaurus/dilder repository on GitHub; these links point at the commit this page was built from.
Dev board: common questions
What microcontroller does the Dev board use?
The Dev board is built around the CP2102N-A02-GQFN24, from the ESP32 family.
How big is the Dev board?
The Dev board measures 29 × 51.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Dev board?
21 components, from 13 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 Dev board design files?
From the rompasaurus/dilder 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 Dev board design in my own project?
The repository has no license, so all rights stay with rompasaurus. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Dev 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.
More boards in dilder
ESP32Espressif ESP32 S3-CP-24 Developer Platform
97.5 × 90.6 mm176 parts4LNo license2
ESP32Hardware
34.8 × 65.9 mm95 parts2LNo license2
ESP32ESP32 sensor board
89.9 × 52.8 mm85 parts4LNo license2
ESP32ESP32 S3 PCB TEMPLATE
86.9 × 88.5 mm84 parts2LNo license2
ESP32ESP32 PCB LAYOUT AJEET
98 × 55.5 mm81 parts4LNo license2
STM32OpenTama
45 × 58.2 mm62 parts2LNo license2
ESP32ESP32-DevKit-Lipo
27.9 × 48.3 mm47 parts2LNo license2
ESP32Main rounded
129.5 × 50.8 mm31 parts2LNo license2
RP2040/RP2350RP2040-Guide
45.2 × 93.4 mm31 parts2LNo license2
RP2040/RP2350RP2040 Minimal Design Example
52 × 51 mm30 parts2LNo license2
Similar boards
ESP32Open Book Abridged Edition
joeycastillo
85 × 115 mm65 parts2LCC-BY-SA-4.08.1k
ESP32Badge
atopile
56.3 × 39 mm239 parts4LMIT4.0k
ESP32Esp32 minimal
36.2 × 26.8 mm20 parts2LMIT4.0k
ESP32Racer
StuckAtPrototype
36 × 50.2 mm70 parts4LApache-2.03.8k
ESP32Controller
29 × 74 mm58 parts4LApache-2.03.8k
ESP32Bitaxe
skot
56.5 × 99.8 mm86 parts4LCERN-OHL-S-2.01.4k