
PDA
jacobjuneau6/PDA
A simple ESP32-S3 based phone companion and pocket computer. This open-source hardware project includes a custom PCB, 3D-printable case, and Arduino firmware — everything you need to build a portable device with a color…

A compact ESP32-S3 development board designed for rapid prototyping and embedded projects.
Devkit2 is an open-source printed circuit board by jacobjuneau6, from the jacobjuneau6/devkit2 repository on GitHub, published under the MIT licence. It is a 2-layer board of 40.8 × 80 mm with 13 parts on 61 nets, routed with 348 tracks and 36 vias.
It is built around the ESP32-S3-WROOM-1-N8R8, TPS74533PCQWDRVRQ1 and KMR221NGLFS, with the RP0603BRE0710KL, RT0603BRE075K1L and WS2812B-B/T among its other parts. Its parts include 4 resistors, 2 ICs, 2 connectors, 2 switches and 1 diode. It belongs with the ESP32 boards of this library.
A compact ESP32-S3 development board designed for rapid prototyping and embedded projects.

┌──────────────────┐
3.3V —│ J1 │— GND
EN —│ │— VIN (5 V)
IO4 —│ │— IO5
IO6 —│ │— IO7
IO15 —│ │— IO8
IO16 —│ │— IO9
IO17 —│ │— IO10
IO18 —│ │— IO11
IO19 —│ │— IO12
IO20 —│ │— IO13
IO21 —│ ESP32-S3 │— IO14
IO26 —│ devkit2 │— IO38
IO35 —│ │— IO39
IO36 —│ │— IO40
IO37 —│ │— IO41
IO42 —│ │— IO45
IO43 —│ │— IO46
IO44 —│ │— IO47
GND —│ │— IO2 (onboard LED)
5 V —│ │— IO0 (Boot button)
└──────────────────┘| Peripheral | GPIO | Notes |
|---|---|---|
| WS2812B LED | 2 | DIN, use NeoPixel lib |
| Boot button | 0 | Pull LOW to enter download mode |
| Reset button | EN | Pulls EN pin LOW |
| microSD CS | 5 | SPI chip select |
| microSD MOSI | 11 | SPI data |
| microSD MISO | 13 | SPI data |
| microSD SCK | 12 | SPI clock |
Install the esp32 board package by Espressif in the Arduino IDE:
https://espressif.github.io/arduino-esp32/package_esp32_index.jsonesp32, and install esp32 by Espressif Systems| Setting | Value |
|---|---|
| Board | ESP32S3 Dev Module |
| USB CDC On Boot | Enabled |
| Flash Size | 16 MB (128 Mb) |
| PSRAM | OPI PSRAM |
| Upload Mode | UART / Hardware CDC |
Install these libraries via Tools → Manage Libraries:
Hold Boot (SW1), press and release Reset (SW2), then release Boot to enter download mode. Open CODE/demo/demo.ino in the Arduino IDE, select the correct port, and hit Upload.
| Designator | Qty | Value | Footprint | LCSC # |
|---|---|---|---|---|
| U1 | 1 | ESP32-S3-WROOM-1 | WIRELM-SMD ESP32-S3-WROOM-1 | C2913201 |
| U2 | 1 | TPS74533PCQWDRVRQ1 | WSON-6 2.0×2.0 mm | C2860924 |
| USB1 | 1 | TYPE-C 16PIN 2MD | USB-C SMD 16-pin | C2765186 |
| LED1 | 1 | WS2812B-B/W | LED-SMD 5.0×5.0 mm | C2761795 |
| CARD1 | 1 | TF PUSH | TF-SMD push-push | C393941 |
| J1, J2 | 2 | PINHD 1×20 Male | PinHeader 1×20 2.54 mm | — |
| SW1, SW2 | 2 | KMR221NGLFS | KEY-SMD 4.2×2.8 mm | C269272 |
| R1, R2 | 2 | RT0603BRE075K1L | 0603 (1608 Metric) | C728607 |
| R3, R4 | 2 | RT0603BRE0710KL | 0603 (1608 Metric) | C6277183 |
Board files live in BOARD/. The project was designed in KiCad 8.
🔗 View schematic & PCB interactively on KiCanvas


| Directory | Contents |
|---|---|
BOARD/Board/ | Schematic, PCB, project files |
BOARD/Board/gbrs/ | Gerber files (JLCPCB ready) |
BOARD/Board/production/ | BOM, CPL, netlist |
BOARD/CAD/ | 3D STEP model |
Hardware and software are released under the MIT License.
Built by jacobjuneau6
| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | KMR221NGLFS | easyeda2kicad:KEY-SMD_4P-L4.2-W2.8-P1.60-LS4.6 | SW1, SW2 |
| 2 | PINHD_1x20_Male | Connector_PinHeader_2.54mm:PinHeader_1x20_P2.54mm_Vertical | J1, J2 |
| 2 | RP0603BRE0710KL | footprints:RESC1608X55N | R3, R4 |
| 2 | RT0603BRE075K1L | footprints:RESC1608X55N | R1, R2 |
| 1 | ESP32-S3-WROOM-1 | easyeda2kicad:WIRELM-SMD_ESP32-S3-WROOM-1 | U1 |
| 1 | TF PUSH | easyeda2kicad:TF-SMD_TF-PUSH | Card1 |
| 1 | TPS74533PCQWDRVRQ1 | easyeda2kicad:WSON-6_L2.0-W2.0-P0.65-TL-EP | U2 |
| 1 | TYPE-C 16PIN 2MD | easyeda2kicad:USB-C-SMD_TYPE-C-16PIN-2MD-073 | USB1 |
| 1 | WS2812B-B/W | easyeda2kicad:LED-SMD_4P-L5.0-W5.0-TL_WS2812B-B | LED1 |
It measures 40.8 × 80 mm and has 2 copper layers, 1.6 mm thick.
13 parts, built around the ESP32-S3-WROOM-1-N8R8, TPS74533PCQWDRVRQ1, KMR221NGLFS and RP0603BRE0710KL. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the jacobjuneau6/devkit2 repository on GitHub, at the commit this page was made from: the board is BOARD/Board/Board.kicad_pcb and its schematic BOARD/Board/Board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

jacobjuneau6/PDA
A simple ESP32-S3 based phone companion and pocket computer. This open-source hardware project includes a custom PCB, 3D-printable case, and Arduino firmware — everything you need to build a portable device with a color…


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