ESP32 sensor board
About the ESP32 sensor board
ESP32 sensor board is an open source ESP32 PCB design by rompasaurus, published on GitHub. It is a 4-layer board measuring 89.9 × 52.8 mm, with 85 components from 53 distinct parts.
Its main chip is the ESP32-C3-WROOM-02-H4, from the ESP32 family. Other key parts include the MCP73871-4CCI/ML, LM1117MPX-3.3/NOPB, CP2102N-A02-GQFN20, USBLC6-2SC6 and W25Q32JVSSIQ. By type, the board carries 33 resistors, 25 capacitors, 8 ICs, 6 diodes, 5 connectors and 3 transistors.
It belongs with the sensors, iot & wireless and power & battery designs in this gallery.
From the project
This project involves the design and development of a custom PCB for an IoT application powered by the ESP32-C3-02 SoC. The board includes integrated power management features using the TP4056 Li-ion battery charger IC, enabling efficient and safe charging of a single-cell Li-ion
This project involves the design and development of a custom PCB for an IoT application powered by the ESP32-C3-02 SoC. The board includes integrated power management features using the TP4056 Li-ion battery charger IC, enabling efficient and safe charging of a single-cell Li-ion battery.
- Microcontroller: ESP32-C3-02 SoC for Wi-Fi and BLE connectivity. - Power Management: TP4056 IC for single-cell Li-ion battery charging with thermal regulation. - Battery Protection: Integrated under-voltage lockout and trickle charging. - Sensors and Modules: - BME280 for temperature, humidity, and…
Main components on the ESP32 sensor board
ESP32 sensor board bill of materials (BOM)
85 components, 53 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MCP73871-4CCI/ML MCP73871 | QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm | U1 |
| 1 | LM1117MPX-3.3/NOPB LM1117MPX-3.3_NOPB | VREG_LM1117MPX-3.3 | U2 |
| 1 | ESP32-C3-WROOM-02-H4 | MODULE_ESP32-C3-WROOM-02-H4 | U3 |
| 1 | CP2102N-A02-GQFN20 | SiliconLabs_QFN-20-1EP_3x3mm_P0.5mm_EP1.8x1.8mm | U4 |
| 1 | USBLC6-2SC6 | SOT-23-6 | U5 |
| 1 | W25Q32JVSSIQ | SOIC127P790X216-8N | U6 |
| 1 | BME280 | PSON65P250X250X100-8N | U7 |
| 1 | MAX4466EXK+T | SOT65P210X110-5N | U8 |
| 1 | TEMT6000X01 | TRANS_TEMT6000X01 | Q1 |
| 2 | BC817 | SOT-23 | Q2, Q3 |
| 1 | CONN_02X05_ODD_EVEN USB_C_Receptacle | BELFUSE_SS-52400-002 | J1 |
| 1 | ? JST_2mm_LiPo | JST_B2B-PH-SM4-TB | J2 |
| 1 | GSD090012SEU | AMPHENOL_GSD090012SEU | J3 |
| 1 | B4B-XH-AM | JST_B4B-XH-AM__LF__SN_ | J4 |
| 1 | Conn_01x05 | PinHeader_1x05_P2.54mm_Vertical | J6 |
| 1 | 0ZCH0110AF2E | FUSC3226X100N | F1 |
| 1 | CMC-5042PF-AC | CUI_CMC-5042PF-AC | MK1 |
| 2 | 1101NE | SW_TL3305AF260QG | SW1, SW2 |
| 3 | LTST-C170KRKT Red | LEDC2012X120N | D1, D4, D6 |
| 2 | LTST-C170GKT Green | LEDC2012X120N | D2, D5 |
Show 33 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LTST-C170TBKT Blue | LEDC2012X120N | D3 |
| 1 | FBMJ2125HM330-T | BEADC2012X105N | FB1 |
| 12 | 0.1u | C_0805_2012Metric | C1, C2, C5, C8, C10, C13, C14, C15 +4 |
| 4 | T491A106K010AT7280 10u | T491A | C3, C4, C7, C12 |
| 2 | 1u | C_0805_2012Metric | C6, C22 |
| 1 | T491A106K010AT7280 4.7u | T491A | C9 |
| 1 | 1500P 1u | C_0805_2012Metric | C11 |
| 3 | 10n | C_0805_2012Metric | C17, C24, C25 |
| 1 | 10u | C_0805_2012Metric | C19 |
| 1 | 100p | C_0805_2012Metric | C20 |
| 1 | 1K8 10K | R_0805_2012Metric | R1 |
| 2 | 10K | R_0805_2012Metric | R2, R19 |
| 2 | 5k1 | R_0805_2012Metric | R3, R4 |
| 1 | 2K | R_0805_2012Metric | R5 |
| 1 | 20K | R_0805_2012Metric | R6 |
| 3 | 470 | R_0805_2012Metric | R7, R8, R9 |
| 2 | 330 | R_0805_2012Metric | R10, R18 |
| 2 | 0R1 1K | R_0805_2012Metric | R11, R30 |
| 1 | 0R1 22K1 | R_0805_2012Metric | R12 |
| 1 | 0R1 47K5 | R_0805_2012Metric | R13 |
| 1 | 5K1 330 | R_0805_2012Metric | R14 |
| 3 | 50 | R_0805_2012Metric | R15, R16, R20 |
| 1 | 35WR100KLFTR | TRIM_35WR100KLFTR | R17 |
| 1 | 845K 50 | R_0805_2012Metric | R22 |
| 1 | 270K 10K | R_0805_2012Metric | R23 |
| 1 | 1K5 4K7 | R_0805_2012Metric | R24 |
| 1 | 0R1 4K7 | R_0805_2012Metric | R25 |
| 2 | 5K1 2K | R_0805_2012Metric | R26, R28 |
| 2 | 5K1 1M | R_0805_2012Metric | R27, R29 |
| 1 | 2K2 22K | R_0805_2012Metric | R31 |
| 1 | 0R1 10K | R_0805_2012Metric | R32 |
| 1 | 47.5K 10K | R_0805_2012Metric | R33 |
| 1 | 10K | R_0805_2012Metric | R34 |
ESP32 sensor 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.
ESP32 sensor board: common questions
What microcontroller does the ESP32 sensor board use?
The ESP32 sensor board is built around the ESP32-C3-WROOM-02-H4, from the ESP32 family.
How big is the ESP32 sensor board?
The ESP32 sensor board measures 89.9 × 52.8 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the ESP32 sensor board?
85 components, from 53 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 sensor 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 ESP32 sensor 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 ESP32 sensor 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 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
ESP32Dev board
29 × 51.9 mm21 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