Portal
About the Portal PCB
Portal is an open source ESP32 PCB design by mythigen, published on GitHub. It is a 2-layer board measuring 84.2 × 59.2 mm, with 72 components from 31 distinct parts.
Its main chip is the ESP32-S3-WROOM-1, from the ESP32 family. Other key parts include the AMS1117-3.3, L7805 and CH340C. By type, the board carries 21 resistors, 15 diodes, 14 capacitors, 6 transistors, 5 switches and 4 ICs.
Main components on the Portal
Portal bill of materials (BOM)
72 components, 31 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U2 |
| 1 | L7805 | TO-252-2 | U3 |
| 1 | CH340C | SOIC-16_3.9x9.9mm_P1.27mm | U4 |
| 1 | ESP32-S3-WROOM-1 | ESP32-S3-WROOM-1 | U5 |
| 5 | BC817 | SOT-23 | Q1, Q2, Q4, Q5, Q6 |
| 1 | IRLU3114Z | TO-252-2 | Q3 |
| 1 | USB_B_Micro | USB_Micro-B_Molex-105017-0001 | J1 |
| 1 | Barrel_Jack_Switch | BarrelJack_Horizontal | J2 |
| 1 | PINHD_1X2_MALE PINHD_1x2_Male | PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | SCREW_TERMINAL_01X02 Screw_Terminal_01x02 | TerminalBlock_bornier-2_P5.08mm | J4 |
| 1 | Fuse | CAPC4520X203N | F1 |
| 1 | TLP350 | DIP-8_W7.62mm | OC1 |
| 1 | RDM6300 | RDM6300 | RDM1 |
| 5 | SW_Push | SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW1, SW2, SW3, SW5, SW6 |
| 2 | LED | LED_0805_2012Metric | D1, D7 |
| 1 | RCLAMP0524PATCT Semtech Corporation | UFDFN-10_2.5x1mm | D2 |
| 3 | 1N4007 | D_DO-214AC_SMA | D3, D4, D5 |
| 1 | D_Schottky_Generic | D_DO-214AC_SMA | D6 |
| 3 | SMAJ5CA | D_DO-214AC_SMA | D8, D9, D11 |
| 1 | SMAJ15CA | D_DO-214AC_SMA | D10 |
Show 11 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 1N4148W | D_DO-15_P3.81mm_Vertical_AnodeUp | D12 |
| 2 | LED_Small | LED_0805_2012Metric | D14, D15 |
| 1 | LED_RGB | LED_RGB_5050-6 | D16 |
| 8 | 0.1UF 0.1uf | C_0805_2012Metric | C1, C3, C7, C10, C11, C12, C14, C15 |
| 3 | C | C_0805_2012Metric | C4, C5, C6 |
| 1 | 4.7 uf | C_Elec_4x5.4 | C13 |
| 2 | 100NF 100nf | C_0805_2012Metric | C16, C17 |
| 13 | R | R_0805_2012Metric | R3, R4, R5, R6, R7, R8, R9, R10 +5 |
| 1 | 10 | R_0805_2012Metric | R12 |
| 1 | 100K 100k | R_0805_2012Metric | R13 |
| 6 | 10K 10k | R_0805_2012Metric | R18, R19, R20, R21, R22, R23 |
Portal design files
The KiCad project lives in the mythigen/portal repository on GitHub; these links point at the commit this page was built from.
Portal: common questions
What microcontroller does the Portal use?
The Portal is built around the ESP32-S3-WROOM-1, from the ESP32 family.
How big is the Portal PCB?
The Portal measures 84.2 × 59.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Portal?
72 components, from 31 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 Portal design files?
From the mythigen/portal 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 Portal design in my own project?
The repository has no license, so all rights stay with mythigen. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Portal 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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