DigiCar
About the DigiCar PCB
DigiCar is an open source ESP32 PCB design by kjsugi77, published on GitHub under the BSD-3-Clause license. It is a 2-layer board measuring 157 × 42 mm, with 38 components from 20 distinct parts.
Its main chip is the ESP-WROOM-32, from the ESP32 family. Other key parts include the FT231XS. By type, the board carries 12 connectors, 8 capacitors, 8 resistors, 2 transistors, 2 switches and 2 diodes.
From the project
ミニ四駆サイズの学習用自動運転ミニカー「DigiCar(デジカー)」の開発プロジェクトです。 ESP32 を中心とした電装を採用した RumiCar リスペクト作品で、 現在は ToF センサ搭載による自動運転機能を教育・研究向けに開発中です。
このフォルダには、DigiCar の基板設計に使用している KiCad プロジェクトの主要ファイルが含まれています。 回路図（schematic）と PCB レイアウト（pcb）を編集する際に使用します。
- DigiCar.kicadpro** KiCad プロジェクトファイルです。 このファイルを開くことで、回路図エディタと PCB エディタを利用できます。
- DigiCar.kicadsch** DigiCar の回路図データです。 電気的な接続、部品構成、信号ラインなどを編集できます。
- DigiCar.kicadpcb** DigiCar の基板レイアウトデータです。 部品配置、配線、基板形状などを編集できます。
1. KiCad を起動し、DigiCar.kicadpro** を開きます。 2. 回路図（Schematic Editor）または基板レイアウト（PCB Editor）を編集できます。
Main components on the DigiCar
DigiCar bill of materials (BOM)
38 components, 20 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | FT231XS | SSOP20 | U4 |
| 2 | 2SC2712 | SC59 | Q1, Q2 |
| 3 | EH-2 | EH-2 | CN1, CN2, CN3 |
| 1 | PINHD-1X3 | CON_RC_SERVO | CN4 |
| 6 | PINHD-1X6 | 1X06 | CN5, CN6, CN7, CN8, CN9, CN10 |
| 1 | ZX62-B-5PA(11) | CONN_ZX62-B-5PA(11)_HIR | CN11 |
| 1 | Conn_02x07_Odd_Even | PinSocket_2x07_P2.54mm_Vertical | CN12 |
| 1 | ESP-WROOM-32 | ESP-WROOM-32 | ESP-WROOM-32 |
| 1 | SS-12SDP2 | SLIDE-SW | SW1 |
| 1 | SKRPACE010 | SKRPACE010 | SW2 |
| 1 | TB6612FNG | SSOP-24_5.3x8.2mm_P0.65mm | TB6612FNG |
| 1 | TC1262-3.3VDB | SOT223 | TC1262-3.3VDB |
| 2 | SS2040FL | SOD123 | D1, D2 |
| 1 | 10uF | CP3216 | C1 |
| 6 | 0.1uF | CP1608 | C2, C4, C5, C6, C7, C8 |
| 1 | 100uF | CP3216 | C3 |
| 1 | 20k | CP1608 | R1 |
| 4 | 10k | CP1608 | R2, R3, R5, R6 |
| 1 | 100 | CP1608 | R4 |
| 2 | 1k | CP1608 | R7, R8 |
DigiCar design files
The KiCad project lives in the kjsugi77/DigiCar repository on GitHub; these links point at the commit this page was built from.
DigiCar: common questions
What microcontroller does the DigiCar use?
The DigiCar is built around the ESP-WROOM-32, from the ESP32 family.
How big is the DigiCar PCB?
The DigiCar measures 157 × 42 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the DigiCar?
38 components, from 20 distinct parts. The full bill of materials is listed on this page.
Where can I download the DigiCar design files?
From the kjsugi77/DigiCar repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the DigiCar design in my own project?
Yes, under the terms of its BSD-3-Clause license, which kjsugi77 chose for the repository.
Can I test firmware for the DigiCar 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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