ESP32Sensor
About the ESP32Sensor PCB
ESP32Sensor is an open source ESP32 PCB design by LESA-RPI, published on GitHub. It is a 4-layer board measuring 154.1 × 74 mm, with 94 components from 72 distinct parts.
Its main chip is the ESP32-C3-WROOM-02-N4, from the ESP32 family. Other key parts include the CP2102N-AXX-XQFN28, FUSB302B11MPX, BC846AS-7, TLV76733DRVX and SN74LVC1G58DRYR. By type, the board carries 27 resistors, 23 capacitors, 17 ICs, 12 LEDs, 4 inductors and 3 connectors.
It belongs with the sensors and power & battery designs in this gallery.
From the project
Horticulture Fluorescence Sensor Project
Note: This design relies on an exteranl 12V power supply, either thruough the barrel or USB-PD ## File structures
/Casing The case of the new design. Open file located at .../ver2/assembly2.prt
/KiCad New Sensor Client's schematic and PCB design. Feel free to ignore .../ESP32Sensor-Archive All the schematic libs symboles are located in .../External Lib/KiCADv6 All the footprints are located in .../External Lib/Library.pretty and .../External Lib/footprints.pretty
Main components on the ESP32Sensor
ESP32Sensor bill of materials (BOM)
94 components, 72 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-C3-WROOM-02-N4 | IC18_ESP32-C3-WROOM-02-N4_EXP | U1 |
| 1 | CP2102N-AXX-XQFN28 CP2102N-Axx-xQFN28 | QFN-28-1EP_5x5mm_P0.5mm_EP3.35x3.35mm | U2 |
| 1 | FUSB302B11MPX FUSB302MPX | MLP14_2P5X2P5_ONS | U3 |
| 1 | BC846AS-7 LTC2485CDD-PBF | DFN-10_DD_LIT | U4 |
| 1 | TLV76733DRVX AD620ARZ-REEL7 | R_8_ADI | U5 |
| 1 | SN74LVC1G58DRYR AD630ARZ | SOIC-20W_7.5x12.8mm_P1.27mm | U6 |
| 1 | AD620ARZ-REEL7 OP27GSZ-REEL7 | R_8_ADI | U7 |
| 1 | AD630ARZ TL4242TDRJRQ1 | DRJ8_3X2P2 | U8 |
| 1 | OP27GSZ-REEL7 TL4242TDRJRQ1 | DRJ8_3X2P2 | U9 |
| 1 | LTC2453IDDB-TRMPBF TL4242TDRJRQ1 | DRJ8_3X2P2 | U10 |
| 1 | LT1054IDWR TL4242TDRJRQ1 | DRJ8_3X2P2 | U11 |
| 1 | TLV76750DRVX SN74LVC1G58DRYR | DRY6 | U12 |
| 1 | 4492 BC846AS-7 | SOT6_BC846AS-7_DIO | U13 |
| 1 | VL53L1CXV0FY1 | ST_VL53L1x | U14 |
| 1 | TLV76750DRVx | WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm_ThermalVias | U15 |
| 1 | TLV76733DRVx | WSON-6-1EP_2x2mm_P0.65mm_EP1x1.6mm_ThermalVias | U16 |
| 1 | LT1054IDWR | DW16 | U17 |
| 1 | 12401598E4#2A USB-C connector Amphenol ICC (Commercial Products) | USB_C_Receptacle_Amphenol_12401610E4-2A_CircularHoles | J1 |
| 1 | 12401598E4-2A PJ-014CH-SMT-TR | CUI_PJ-014CH-SMT-TR | J2 |
| 1 | FTSH-103-01-L-DH-C PPTC041LFBN-RC | CONN_PPTC041LFBN-RC_SUL | J4 |
Show 52 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MMSZ5231B MMSZ5226B-7-F | SOD123_DIO | CR1 |
| 1 | MMSZ5226B-7-F MMSZ5231B | SOD123_FAS | CR2 |
| 2 | IRLHS6376TRPBF | PQFN6_IRLHS6376TRPBF_INF | K1, K2 |
| 1 | ~ | ODD-42W | PD1 |
| 3 | 219-2MSTR | SW_219-2MSTR | S1, S2, S3 |
| 12 | XPEBRY-L1-R250-00P01 | HFS_LED | LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +4 |
| 4 | FerriteBead | LED_0402_1005Metric | FB1, FB2, FB3, FB4 |
| 1 | 10UF 1uF | C_0402_1005Metric | C1 |
| 1 | 200PF 0.1uF | C_0402_1005Metric | C2 |
| 1 | 200PF 100nF | C_0402_1005Metric | C3 |
| 1 | 1UF 100nF | C_0402_1005Metric | C4 |
| 1 | 2.2UF 0.1uF | C_0402_1005Metric | C5 |
| 2 | 100NF 4.7uF | C_0402_1005Metric | C6, C7 |
| 1 | 1UF 0.1uF | C_0402_1005Metric | C8 |
| 1 | 0.1UF 0.1uF | C_0402_1005Metric | C9 |
| 1 | 2.2UF 4.7uF | C_0402_1005Metric | C10 |
| 1 | 10UF 4.7uF | C_0402_1005Metric | C11 |
| 1 | 0.002UF 0.1uF | C_0402_1005Metric | C12 |
| 1 | 1UF 10uF | C_0402_1005Metric | C13 |
| 1 | 2.2UF 1uF | C_0402_1005Metric | C14 |
| 1 | 100UF 2.2uF | C_0402_1005Metric | C15 |
| 1 | 0.1UF 10uF | C_0402_1005Metric | C16 |
| 1 | 10UF 100uF | C_0402_1005Metric | C17 |
| 1 | 1UF 2uF | C_0402_1005Metric | C18 |
| 1 | 0.002uF | C_0402_1005Metric | C19 |
| 1 | 1uF | C_0402_1005Metric | C20 |
| 1 | 2.2uF | C_0402_1005Metric | C21 |
| 1 | 100nF | C_0402_1005Metric | C22 |
| 1 | 4700nF | C_0402_1005Metric | C23 |
| 1 | 100 | R_0402_1005Metric | R1 |
| 1 | 10K 100 | R_0402_1005Metric | R2 |
| 1 | 10K 0.5 | R_0402_1005Metric | R3 |
| 1 | 9880 27 | R_0402_1005Metric | R4 |
| 1 | 16466.666 0.5 | R_0402_1005Metric | R5 |
| 1 | 49400 27 | R_0402_1005Metric | R6 |
| 1 | 10K 49400 | R_0402_1005Metric | R7 |
| 1 | 16466.666 | R_0402_1005Metric | R8 |
| 1 | 9880 | R_0402_1005Metric | R9 |
| 1 | 100K 1M | R_0402_1005Metric | R10 |
| 1 | 6.66K 10M | R_0402_1005Metric | R11 |
| 1 | 6.66K | R_0402_1005Metric | R12 |
| 1 | 7K | R_0402_1005Metric | R13 |
| 1 | 1M | R_0402_1005Metric | R14 |
| 2 | 20K 0.5 | R_0402_1005Metric | R15, R18 |
| 1 | 220K 27 | R_0402_1005Metric | R16 |
| 1 | 27 | R_0402_1005Metric | R17 |
| 1 | 10K 1M | R_0402_1005Metric | R19 |
| 1 | 10K 1k | R_0402_1005Metric | R20 |
| 3 | 10k | R_0402_1005Metric | R21, R22, R25 |
| 1 | 20k | R_0402_1005Metric | R23 |
| 1 | 220k | R_0402_1005Metric | R24 |
| 2 | 1k | R_0402_1005Metric | R26, R27 |
ESP32Sensor design files
The KiCad project lives in the LESA-RPI/hfs.main repository on GitHub; these links point at the commit this page was built from.
ESP32Sensor: common questions
What microcontroller does the ESP32Sensor use?
The ESP32Sensor is built around the ESP32-C3-WROOM-02-N4, from the ESP32 family.
How big is the ESP32Sensor PCB?
The ESP32Sensor measures 154.1 × 74 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the ESP32Sensor?
94 components, from 72 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 ESP32Sensor design files?
From the LESA-RPI/hfs.main 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 ESP32Sensor design in my own project?
The repository has no license, so all rights stay with LESA-RPI. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the ESP32Sensor 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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