EsPiFF
About the EsPiFF PCB
EsPiFF is an open source ESP32 PCB design by MDCservice, published on GitHub under the GPL-3.0 license. It is a 6-layer board measuring 83.5 × 56 mm, with 168 components from 75 distinct parts.
Its main chip is the ESP32-WROVER-E, from the ESP32 family. Other key parts include the PCF8563T, APX823, 741G3157, IP101GR and PCA9557PW. By type, the board carries 56 capacitors, 53 resistors, 17 ICs, 13 diodes, 10 connectors and 4 transistors.
It belongs with the displays & leds designs in this gallery.
From the project
An ESP32 in the Raspberry Pi form factor
This is the final schematic and layout for the Crowd Supply campaign. The LAN8720 Ethernet PHY got replaced by the IP101, after the LAN8720 in combination with the ESP32-WROVER was not working stable. Additionally, we added an TFT-Display connector for serial displays/HMIs.
Main components on the EsPiFF
EsPiFF bill of materials (BOM)
168 components, 75 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | PCF8563T | SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | APX823 | SOT-23-5 | U2 |
| 2 | 741G3157 | SOT-363_SC-70-6 | U3, U6 |
| 1 | IP101GR | QFN-32-1EP_4x4mm_P0.4mm_EP2.65x2.65mm | U4 |
| 1 | ESP32-WROVER-E | ESP32-WROVER-E | U5 |
| 1 | PCA9557PW | TSSOP-16_4.4x5mm_P0.65mm | U7 |
| 1 | FM25CL64B | SOIC8_W+N_combi | U8 |
| 1 | 74xx2G32 | VSSOP-8_2.3x2mm_P0.5mm | U9 |
| 1 | CH340T | SSOP-20_5.3x7.2mm_P0.65mm | U11 |
| 2 | MT9700 | SOT-23-5 | U12, U16 |
| 1 | RP2040_alternateFuncs | QFN56_ThermalVias_0.3 | U13 |
| 1 | W25Q128 | SOIC8_5.23x5.23mm_P1.27mm_mdc | U14 |
| 1 | RT7272 | SOIC8-1EP_3.9x4.9mm_P1.27_ThermalVias | U15 |
| 1 | TS3A5018 | UQFN-16_1.8x2.6_P0.4mm | U17 |
| 1 | ME6211 | SOT-23-5 | U18 |
| 2 | BC817 | SOT-23 | Q3, Q4 |
| 2 | 2N7002 | SOT-23 | Q5, Q6 |
| 1 | 32kHz | Crystal_SMD_2012-2Pin_2.0x1.2mm | Y1 |
| 2 | 12MHz | Crystal_SMD_2520-4Pin_2.5x2.0mm | Y2, Y3 |
| 1 | 25MHz | Crystal_SMD_3225-4Pin_3.2x2.5mm | Y4 |
Show 55 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | HY931147C_PoE | HY931147C | J1 |
| 1 | ConPoE_2x2 | PinHeader_2x02_P2.54mm_Vertical | J2 |
| 1 | SDcard_molex | MOLEX_503398-1892 | J3 |
| 2 | ConDF11_2x4 | DF11-8DP-2DS(52) | J4, J5 |
| 1 | Con_24Vin | JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | J6 |
| 1 | USB_C_Receptacle_USB2.0 | USB_C_XKB_U262-16XN-4BVC11 | J7 |
| 1 | HMI_ESP32c3_hostSide | JST_SUR_SM06B-SURS-TF_1x06-1MP_P0.80mm_Horizontal | J8 |
| 1 | USB_A | USB_A_C26235 | J9 |
| 1 | Raspberry_Pi_2_3 | PinHeader_2x20_P2.54mm_Vertical | J10 |
| 1 | JP_HF_USB_MOSI | PinHeader_1x03_P2.00mm_Vertical | JP1 |
| 1 | JP_WTI | SolderJumper-2_P1.3mm_Open_Pad1.0x1.5mm | JP2 |
| 1 | JP_ResetSel | SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm | JP3 |
| 1 | JP_HF_USB_MISO | PinHeader_1x03_P2.00mm_Vertical | JP4 |
| 1 | 10k | R_Array_Convex_4x0603 | RA1 |
| 1 | Reset | Btn_KEY-SMD_JCLPCB_C698192 | RST1 |
| 1 | USB_BOOT | Btn_TC-1109DE-C-F | SW2 |
| 3 | 1N5819WS | D_SOD-323 | D1, D3, D4 |
| 2 | BAT54C | SOT-23 | D2, D5 |
| 1 | LEDblue | LED_0603_1608Metric | D6 |
| 1 | 1N5819 | D_SOD-323 | D7 |
| 1 | SMAJ6.0 | D_SMA | D8 |
| 2 | LEDyellow | LED_0603_1608Metric | D9, D13 |
| 1 | LEDgreen | LED_0603_1608Metric | D10 |
| 1 | SK4001 | D_SOD-123 | D11 |
| 1 | LEDemerald | LED_0603_1608Metric | D12 |
| 2 | FB0805 | R_0805_2012Metric | FB1, FB3 |
| 1 | FB_800mA | R_0805_2012Metric | FB2 |
| 1 | 6uH8 | L_Bourns-SRN4018 | L1 |
| 1 | 220mF/4V | supercap_DMS3R3224R | C1 |
| 1 | 1n/2kV | C_1206_3216Metric | C2 |
| 1 | 22p | C_0603_1608Metric | C3 |
| 5 | 1u | C_0603_1608Metric | C4, C9, C33, C38, C48 |
| 27 | 100n | C_0603_1608Metric | C5, C6, C7, C8, C12, C13, C16, C17 +19 |
| 4 | 22u/6.3V | C_0805_2012Metric | C10, C24, C52, C57 |
| 4 | 47u/6.3V | C_0805_2012Metric | C11, C46, C47, C49 |
| 2 | 20p | C_0603_1608Metric | C14, C15 |
| 4 | 27p | C_0603_1608Metric | C21, C22, C25, C26 |
| 2 | 10u/50V | C_0805_2012Metric | C40, C41 |
| 1 | 2n7 | C_0603_1608Metric | C42 |
| 2 | 22u/10V | C_0603_1608Metric | C44, C45 |
| 2 | 10u/10V | C_0603_1608Metric | C53, C54 |
| 17 | 10k | R_0603_1608Metric | R1, R17, R18, R19, R22, R25, R28, R29 +9 |
| 7 | 1k | R_0603_1608Metric | R2, R8, R23, R24, R32, R33, R53 |
| 2 | 2.2k | R_0603_1608Metric | R3, R4 |
| 9 | 5k1 | R_0603_1608Metric | R5, R7, R10, R12, R14, R15, R16, R20 +1 |
| 4 | 27R | R_0603_1608Metric | R6, R9, R30, R31 |
| 1 | 0R | R_0603_1608Metric | R11 |
| 1 | 6k19 | R_0603_1608Metric | R13 |
| 1 | 220R | R_0603_1608Metric | R26 |
| 6 | 3k3 | R_0603_1608Metric | R27, R40, R42, R43, R44, R46 |
| 1 | 120k | R_0603_1608Metric | R36 |
| 1 | 24k | R_0603_1608Metric | R37 |
| 1 | 62k | R_0603_1608Metric | R38 |
| 1 | 12k | R_0603_1608Metric | R39 |
| 1 | 4k7 | R_0603_1608Metric | R45 |
EsPiFF design files
The KiCad project lives in the MDCservice/EsPiFF repository on GitHub; these links point at the commit this page was built from.
- Layouthardware/espiff_v3_1.kicad_pcb
- Schematichardware/espiff_v3_1.kicad_sch
EsPiFF: common questions
What microcontroller does the EsPiFF use?
The EsPiFF is built around the ESP32-WROVER-E, from the ESP32 family.
How big is the EsPiFF PCB?
The EsPiFF measures 83.5 × 56 mm, has 6 copper layers and is 2.655 mm thick.
How many components are on the EsPiFF?
168 components, from 75 distinct parts. The full bill of materials is listed on this page.
Where can I download the EsPiFF design files?
From the MDCservice/EsPiFF repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the EsPiFF design in my own project?
Yes, under the terms of its GPL-3.0 license, which MDCservice chose for the repository.
Can I test firmware for the EsPiFF 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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