Esp32 sensor board
About the Esp32 sensor board
Esp32 sensor board is an open source ESP32 PCB design by benvonhandorf, published on GitHub under the MIT license. It is a 4-layer board measuring 76 × 62 mm, with 86 components from 48 distinct parts.
Its main chip is the ESP32-C3, from the ESP32 family. Other key parts include the LMR36006, INA237 and SHT4x. By type, the board carries 32 capacitors, 21 resistors, 15 connectors, 8 ICs, 3 inductors and 2 crystals.
It belongs with the sensors designs in this gallery.
Main components on the Esp32 sensor board
Esp32 sensor board bill of materials (BOM)
86 components, 48 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LMR36006 | LMR36006-VQFN-HR | U201 |
| 1 | ~ | SOT-23-6 | U301 |
| 1 | ESP32-C3 | QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mm | U302 |
| 1 | ~ | Diode_10Pin_DFN2510A-10_10-XFDFN_SOT1176-1 | U303 |
| 2 | INA237 | VSSOP-10_3x3mm_P0.5mm | U401, U402 |
| 1 | ~ | SOIC-16_3.9x9.9mm_P1.27mm | U501 |
| 1 | SHT4x | Sensirion_DFN-4_1.5x1.5mm_P0.8mm_SHT4x_NoCentralPad | U601 |
| 1 | 32kHz RTC Crystal | Crystal_SMD_3215-2Pin_3.2x1.5mm | Y301 |
| 1 | 40 MHz | Crystal_SMD_2016-4Pin_2.0x1.6mm | Y302 |
| 4 | Conn_01x02 | PhoenixContact_MSTBA_2,5_2-G-5,08_1x02_P5.08mm_Horizontal | J101, J102, J103, J104 |
| 1 | 3.3V | PinHeader_1x03_P2.54mm_Vertical | J201 |
| 1 | Micro_SD_Card_Det | MicroSD_Socket_Unbranded | J302 |
| 1 | Conn_Coaxial | U.FL_Molex_MCRF_73412-0110_Vertical | J303 |
| 1 | UART | PinHeader_1x03_P2.54mm_Vertical | J304 |
| 1 | EXT1 | PinHeader_1x03_P2.54mm_Vertical | J305 |
| 1 | EXT2 | PinHeader_1x03_P2.54mm_Vertical | J306 |
| 1 | I2C | PinHeader_1x04_P2.54mm_Vertical | J307 |
| 1 | SPI | PinHeader_1x06_P2.54mm_Vertical | J308 |
| 1 | USB_C_Receptacle_USB2.0_16P | USB_C_Receptacle_GCT_USB4085 | J309 |
| 2 | Conn_01x05 | PinHeader_1x05_P2.54mm_Horizontal | J501, J502 |
Show 28 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | USB Power Jumper | SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP201 |
| 1 | BOOT | TacButton_SMD_5mm_5mm | SW301 |
| 1 | RST | Tac_SMD_6.4mm_Side_SPST_NO | SW302 |
| 1 | D_Small | D_SOD-123 | D1 |
| 1 | STATUS_LED | LED_0805_2012Metric | D301 |
| 1 | 10uH | L_Taiyo-Yuden_MD-4040 | L201 |
| 1 | 2.0nH | L_0402_1005Metric | L301 |
| 1 | 5.6nH | L_0603_1608Metric | L302 |
| 9 | 0.1uF | C_0603_1608Metric | C201, C302, C303, C304, C306, C307, C315, C401 +1 |
| 1 | 4.7uF | C_1206_3216Metric | C202 |
| 2 | 220nF | C_1206_3216Metric | C203, C204 |
| 2 | 15uF | C_1206_3216Metric | C205, C206 |
| 1 | 20pF | C_0805_2012Metric | C207 |
| 7 | 1uF | C_0805_2012Metric | C208, C308, C501, C502, C503, C504, C601 |
| 2 | 10uF | C_0805_2012Metric | C301, C305 |
| 2 | 12.5pF | C_0603_1608Metric | C309, C310 |
| 2 | 10pF | C_0603_1608Metric | C311, C312 |
| 2 | 2.1pF | C_0603_1608Metric | C313, C314 |
| 2 | DNP | C_0805_2012Metric | C505, C506 |
| 2 | 2k2 | R_0603_1608Metric | R101, R102 |
| 4 | 100k | R_0603_1608Metric | R201, R203, R301, R302 |
| 1 | 43.2k | R_0603_1608Metric | R202 |
| 2 | R_Small | R_0603_1608Metric | R303, R306 |
| 2 | 0 | R_0603_1608Metric | R304, R305 |
| 5 | 50k | R_0603_1608Metric | R307, R308, R309, R310, R314 |
| 2 | 5.1k | R_0603_1608Metric | R311, R312 |
| 1 | 33R | R_0603_1608Metric | R313 |
| 2 | 4mR | R_2512_6332Metric | R401, R402 |
Esp32 sensor board design files
The KiCad project lives in the benvonhandorf/esp32_sensor_board 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, from the ESP32 family.
How big is the Esp32 sensor board?
The Esp32 sensor board measures 76 × 62 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Esp32 sensor board?
86 components, from 48 distinct parts. The full bill of materials is listed on this page.
Where can I download the Esp32 sensor board design files?
From the benvonhandorf/esp32_sensor_board repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Esp32 sensor board design in my own project?
Yes, under the terms of its MIT license, which benvonhandorf chose for the repository.
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.
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