ESP-EVB
About the ESP-EVB PCB
ESP-EVB is an open source ESP32 PCB design by OLIMEX, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 33 × 48.3 mm, with 123 components from 52 distinct parts.
Its main chip is the ESP32-D0WDQ6(QFN48_6x6mm), from the ESP32 family. Other key parts include the PIC32MX270F256DT-I/PT(TQFP44_10x10x1mm), MCP73833(MSOP10), SY8089AAAC(SOT23-5), SY6280AAC(SOT23-5) and ATECC508A-SSHDA-T(SOIC-8_150mil). By type, the board carries 47 resistors, 41 capacitors, 8 ICs, 6 inductors, 4 LEDs and 4 diodes.
It belongs with the power & battery and iot & wireless designs in this gallery.
From the project
ESP32 IoT board with 4MB external RAM, 4MB external Flash, LiPo charger, external crypto engine USB-OTG
https://www.olimex.com/Products/IoT/ESP32/ESP32-PRO/open-source-hardware
Main components on the ESP-EVB
ESP-EVB bill of materials (BOM)
123 components, 52 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | PIC32MX270F256DT-I/PT(TQFP44_10x10x1mm) | TQFP44 | U1 |
| 1 | MCP73833(MSOP10) | MSOP-10_Pitch-0.5mm_3.00x3.00x1.00mm | U2 |
| 1 | SY8089AAAC(SOT23-5) | SOT-23-5 | U3 |
| 1 | SY6280AAC(SOT23-5) | SOT-23-5 | U4 |
| 1 | ESP32-D0WDQ6(QFN48_6x6mm) | QFN48-6x6mm-OLIMEX_V2 | U5 |
| 1 | ATECC508A-SSHDA-T(SOIC-8_150mil) | SOIC-8_150mil | U6 |
| 1 | MX25U3235FM2I-10G(SOIC-8_208mil) | SO-8_208mil | U7 |
| 1 | LY68S3200SLT(SOIC-8_150mil) | SOIC-8_150mil | U8 |
| 1 | Q8.0MHz/20pF/20ppm/2P/5.0x3.2mm | HCX-4S_2Pins_5.0x3.2mm | Q1 |
| 1 | Q32.768KHz/12.5pF/20ppm/4P/SMD_8038 | MC306-HS | Q2 |
| 1 | Q40.000MHz/12pF/10ppm/4P/3.2x2.5x0.70mm(Harmony_Electronics_CORP./HSX321S) | TSX-3.2x2.5mm_GND(3) | Q3 |
| 1 | DW02R | LIPO_BAT-CON2DW02R | BAT1 |
| 1 | T1107A(6x3,8x2,5MM) | T1107A(6x3,8x2,5MM) | BUT1 |
| 2 | NA(HN1x16) | HN1x16 | EXT1, EXT2 |
| 2 | WPM2015-3/TR(SOT-23) | SOT23 | FET1, FET2 |
| 1 | TESTPAD | TESTPAD_40-ROUND | GND_Pin1 |
| 1 | TFC-9P-1.7H(ATFFS150A01BR016) | uSD(TFC-9P-1.xH(ATFFS150A01BR016)) | MICRO_SD1 |
| 1 | Unsoldered | SJ | PROG_EN1 |
| 1 | MISB-SWMM-5AB-LF(USB-OTG_MICRO) | USB-MICRO_MISB-SWMM-5B_LF | USB-OTG1 |
| 1 | LED/YELLOW/0603 | LED_0603_KA | CHARGING1 |
Show 32 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LED/GREEN/0603 | LED_0603_KA | COMPLETE1 |
| 2 | LED/RED/0603 | LED_0603_KA | PWRLED1, PWR_GOOD1 |
| 2 | 1N5822/SS34/SMA | SMA-KA | D1, D3 |
| 1 | SMBJ6.0A(DO-214AA) | DO214AA_1(K)-2(A) | D2 |
| 1 | BAT54C(SOT23-3) | SOT23-3 | D4 |
| 4 | FB0805/600R/2A | L_0805_5MIL_DWS | L1, L3, L4, L6 |
| 1 | 2.2uH/1.5A/DCR<0.1R/CD32 | CD32 | L2 |
| 1 | 2.4nH/±0.1nH/220mA/300mR/L0402(Murata_Electronics/LQP15MN2N4B02D) | L_0402_5MIL_DWS | L5 |
| 16 | 100nF/10V/10%/X5R/C0402 | C_0402_5MIL_DWS | C1, C2, C3, C4, C5, C7, C11, C17 +8 |
| 1 | 22uF/6.3V/20%/X5R/C0603 | C_0603_5MIL_DWS | C6 |
| 8 | 47uF/6.3V/20%/X5R/C0805 | C_0805_5MIL_DWS | C8, C9, C10, C12, C31, C34, C37, C38 |
| 5 | 33pF/50V/5%/COG/C0402 | C_0402_5MIL_DWS | C13, C14, C15, C16, C25 |
| 3 | 1uF/10V/10%/X5R/C0603 | C_0603_5MIL_DWS | C18, C26, C39 |
| 1 | 10nF/50V/10%/X7R/C0402 | C_0402_5MIL_DWS | C19 |
| 2 | 22pF/50V/5%/COG/C0402 | C_0402_5MIL_DWS | C20, C21 |
| 1 | 2.4pF/50V/±0.25pF/COG/C0402(Murata_Electronics/GRM1555C1H2R4CA01D) | C_0402_5MIL_DWS | C23 |
| 1 | 3.3nF/50V/10%/X7R/C0402 | C_0402_5MIL_DWS | C27 |
| 2 | 270pF/50V/5%/COG/C0402 | C_0402_5MIL_DWS | C28, C29 |
| 1 | 4.7pF/50V/±0.1pF/COG/C0402(Murata_Electronics/GRM1555C1H4R7BA01D) | C_0402_5MIL_DWS | C30 |
| 10 | 10k/R0402 | R_0402_5MIL_DWS | R1, R3, R11, R21, R22, R31, R35, R40 +2 |
| 3 | 1.1k/1%/R0402 | R_0402_5MIL_DWS | R2, R10, R19 |
| 13 | 2.2k/R0402 | R_0402_5MIL_DWS | R4, R5, R6, R7, R12, R15, R16, R27 +5 |
| 7 | 220R/R0402 | R_0402_5MIL_DWS | R8, R20, R32, R33, R34, R37, R39 |
| 1 | NA(220R/R0402) | R_0402_5MIL_DWS | R9 |
| 3 | NA/R0402 | R_0402_5MIL_DWS | R13, R41, R45 |
| 1 | 1M/1%/R0402 | R_0402_5MIL_DWS | R14 |
| 1 | NA(10M/1%/R0402) | R_0402_5MIL_DWS | R17 |
| 2 | 4.99k/1%/R0402 | R_0402_5MIL_DWS | R18, R23 |
| 1 | 13k/1%/R0402 | R_0402_5MIL_DWS | R24 |
| 1 | 20k/1%/R0402 | R_0402_5MIL_DWS | R25 |
| 1 | NA(1M/1%/R0402) | R_0402_5MIL_DWS | R26 |
| 3 | 22R/R0402 | R_0402_5MIL_DWS | R38, R44, R46 |
ESP-EVB design files
The KiCad project lives in the OLIMEX/ESP32-PRO repository on GitHub; these links point at the commit this page was built from.
ESP-EVB: common questions
What microcontroller does the ESP-EVB use?
The ESP-EVB is built around the ESP32-D0WDQ6(QFN48_6x6mm), from the ESP32 family.
How big is the ESP-EVB PCB?
The ESP-EVB measures 33 × 48.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the ESP-EVB?
123 components, from 52 distinct parts. The full bill of materials is listed on this page.
Where can I download the ESP-EVB design files?
From the OLIMEX/ESP32-PRO repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the ESP-EVB design in my own project?
Yes, under the terms of its Apache-2.0 license, which OLIMEX chose for the repository.
Can I test firmware for the ESP-EVB 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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