ESPHome-Indoor-Multi-Sensor
About the ESPHome-Indoor-Multi-Sensor PCB
ESPHome-Indoor-Multi-Sensor is an open source ESP32 PCB design by mikelawrence, published on GitHub under the CERN-OHL-P-2.0 license. It is a 4-layer board measuring 52.5 × 59.7 mm, with 97 components from 45 distinct parts.
Its main chip is the ESP32-S3-WROOM-2-N32R16V, from the ESP32 family. Other key parts include the SN74LV1T34DBV, TLV62568DRL, MAX98357AETE, TLV75533PDRV and INA228AIDGSR. By type, the board carries 41 capacitors, 21 resistors, 19 ICs, 6 connectors, 4 diodes and 2 switches.
It belongs with the sensors, iot & wireless and audio designs in this gallery.
From the project
ESPHome Indoor Multi-Sensor hardware. This design supports Radar/PIR Presence, Temperature, Humidity, Pressure, Light, CO2, CO, VOC, NOX and PM sensors. Add a speaker and microphone and you have the kitchen sink too! Click the link below to configure a new device.
The PCB is designed in KiCad. Fabrication and is tuned toward JCLPCB. I chose not to use JLCPCB for assembly because they had a hard time with some the parts I included in this design. When I had the boards fabricated I also had them panelize two PCBs and produce a stencil for both for the panelized boards.
Main components on the ESPHome-Indoor-Multi-Sensor
ESPHome-Indoor-Multi-Sensor bill of materials (BOM)
97 components, 45 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SN74LV1T34DBV Texas Instruments | SOT-23-5 | U1 |
| 2 | TLV62568DRL Texas Instruments | SOT50P160X60-6N | U2, U5 |
| 1 | MAX98357AETE MAX98357A Maxim | TQFN-16-1EP_3x3mm_P0.5mm_EP1.23x1.23mm | U3 |
| 1 | TLV75533PDRV Texas Instruments | VREG_TLV75533PDRVR | U4 |
| 1 | ESP32-S3-WROOM-2-N32R16V Espressif | ESP32-S3-WROOM-2 | U6 |
| 1 | INA228AIDGSR INA228 Texas Instruments | VSSOP-10_3x3mm_P0.5mm | U7 |
| 1 | TSL2591 AMS | AMS_TSL25911FN | U8 |
| 1 | SGP41-D-R4 SGP41 Sensirion | XCDR_SGP40-D-R4 | U9 |
| 1 | SCD41-D-R2 SCD41 Sensirion | Sensirion_SCD4x-1EP_10.1x10.1mm_P1.25mm_EP4.8x4.8mm | U10 |
| 1 | BMP581 Bosch Sensortec | BMP581 | U11 |
| 1 | MCP6042T-I/MS MCP6042 Microchip | MSOP-8_3x3mm_P0.65mm | U12 |
| 1 | ADS1115IDGS ADS1115 Texas Instruments | TSSOP-10_3x3mm_P0.5mm | U13 |
| 1 | SHT45-AD1B-R2 SHT45 Sensirion | Sensirion_DFN-4_1.5x1.5mm_P0.8mm_SHT4x_NoCentralPad | U14 |
| 1 | EKMC1603111 Panasonic | EKMC163111 | U15 |
| 1 | TGS5141-P00 TGS5141 Figaro | TGS-5141 | U16 |
| 1 | DS18S20+ DS18S20 Maxim | TO-92_Inline | U17 |
| 2 | INA238AIDGSR INA238 Texas Instruments | VSSOP-10_3x3mm_P0.5mm | U18, U19 |
| 1 | MMBFJ201 Onsemi | SOT-23 | Q1 |
| 1 | BM06B-GHS-TBT SEN66 JST | JST_GH_BM06B-GHS-TBT_1x06-1MP_P1.25mm_Vertical | J1 |
| 1 | 1332645 USB-C Phoenix Contact | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J2 |
Show 25 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | CES-105-01-T-S SEN0609 Samtec | PinHeader_1x05_P2.54mm_Vertical | J3 |
| 1 | RSM-105-02-S-S LD2410 Samtec | PinSocket_1x05_P1.27mm_Vertical_SMD_Pin1Right | J4 |
| 1 | CMS-251437-24SP-X8 SPKR Same Sky | PinHeader_1x02_P2.00mm_Vertical | J5 |
| 1 | 79109-1003 LD2450 Molex | PinSocket_2x04_P2.00mm_Vertical_SMD | J6 |
| 1 | ICS-43434 TDK InvenSense | InvenSense_ICS-43434-6_3.5x2.65mm | MK1 |
| 1 | B3U-1000P BOOT Omron | SW_SPST_B3U-1000P-B | SW1 |
| 1 | B3U-1000P RESET Omron | SW_SPST_B3U-1000P-B | SW2 |
| 3 | ESDA8P80-1U1M STMicroelectronics | TVS_ESDA25P35-1U1M | D1, D2, D3 |
| 1 | 1938 NeoPixel_THT Adafruit | LED_D5.0mm-4_RGB | D4 |
| 2 | DFE252012F-1R0M=P2 1uH Murata | L_1008_2520Metric | L1, L2 |
| 11 | CL05A105KA5NQNC 1uF Samsung | C_0402_1005Metric | C1, C4, C5, C22, C25, C26, C27, C31 +3 |
| 12 | GRM188R60J226MEA0D 22uF Murata | C_0603_1608Metric | C2, C3, C8, C9, C11, C12, C13, C15 +4 |
| 18 | CL05B104KB54PNC 100nF Samsung | C_0402_1005Metric | C6, C7, C10, C14, C17, C20, C21, C23 +10 |
| 1 | CRCW0402499KFKED 499KΩ Vishay / Dale | R_0402_1005Metric | R1 |
| 4 | CRCW0402100KFKED 100KΩ Vishay / Dale | R_0402_1005Metric | R2, R5, R11, R16 |
| 1 | CRCW0402634KFKED 634KΩ Vishay / Dale | R_0402_1005Metric | R3 |
| 1 | CRCW0402453KFKED 453KΩ Vishay / Dale | R_0402_1005Metric | R4 |
| 6 | CRCW04025K10FKED 5.1KΩ Vishay / Dale | R_0402_1005Metric | R6, R7, R17, R18, R19, R20 |
| 1 | WSLP0603R0680FEA 68mΩ Vishay | R_0603_1608Metric | R8 |
| 1 | WSL0805R1500FEA18 150mΩ Vishay | R_0805_2012Metric | R9 |
| 1 | WSLP0603R0800FEB 80mΩ Vishay | R_0603_1608Metric | R10 |
| 2 | CRCW040210K0FKED 10KΩ Vishay / Dale | R_0402_1005Metric | R12, R13 |
| 1 | CRCW04024R70FKED 4.7Ω Vishay / Dale | R_0402_1005Metric | R14 |
| 1 | CRCW040264K9FKED 64.9KΩ Vishay / Dale | R_0402_1005Metric | R15 |
| 1 | CRCW0402133KFKED 133KΩ Vishay / Dale | R_0402_1005Metric | R21 |
ESPHome-Indoor-Multi-Sensor design files
The KiCad project lives in the mikelawrence/esphome-indoor-multi-sensor-hardware repository on GitHub; these links point at the commit this page was built from.
ESPHome-Indoor-Multi-Sensor: common questions
What microcontroller does the ESPHome-Indoor-Multi-Sensor use?
The ESPHome-Indoor-Multi-Sensor is built around the ESP32-S3-WROOM-2-N32R16V, from the ESP32 family.
How big is the ESPHome-Indoor-Multi-Sensor PCB?
The ESPHome-Indoor-Multi-Sensor measures 52.5 × 59.7 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the ESPHome-Indoor-Multi-Sensor?
97 components, from 45 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 ESPHome-Indoor-Multi-Sensor design files?
From the mikelawrence/esphome-indoor-multi-sensor-hardware 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 ESPHome-Indoor-Multi-Sensor design in my own project?
Yes, under the terms of its CERN-OHL-P-2.0 license, which mikelawrence chose for the repository.
Can I test firmware for the ESPHome-Indoor-Multi-Sensor 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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