Auto
About the Auto PCB
Auto is an open source ESP32 PCB design by BraulioRom20, published on GitHub. It is a 2-layer board measuring 120.3 × 82.8 mm, with 26 components from 20 distinct parts.
Its main chip is the esp32, from the ESP32 family. Other key parts include the module_mpu6050 and L7805. By type, the board carries 6 ICs, 5 capacitors, 4 connectors, 4 switches, 4 resistors and 2 transistors.
It belongs with the rf & radio designs in this gallery.
From the project
Código de la Computadora del Auto 78 del Desafío ECO YPF 2025
Esquemas y PCB de KICAD para la computadora del auto del "Desafío ECO YPF" y sus submódulos.
Computadora basada en un ESP32, una pantalla led ILI9844 montada en el volante(SPI), un acelerometro(MPU6050), modulo GPS(NEO6M) y un modulo LORA(XL1278).
Adaptación del módulo SMT1278 LoRa a un conector de 5 pines (header de 2.54 mm).
Aquí es donde los terminales de las baterías se conectan al sensor de corriente ACS712 (30A) y al divisor de voltaje.
Main components on the Auto
Auto bill of materials (BOM)
26 components, 20 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ~ | GY-NEO6MV2 | U1 |
| 1 | module_mpu6050 | module_MPU6050 | U2 |
| 1 | ~ | tft_3.5_display | U3 |
| 1 | ~ | esp32 | U4 |
| 1 | L7805 | TO-220-3_Vertical | U6 |
| 1 | ~ | SHIELD XL1278 | U8 |
| 2 | 2N3904 | TO-92_Inline | Q1, Q2 |
| 1 | BATERIAS_PC | Molex_KK-396_5273-02A_1x02_P3.96mm_Vertical | J1 |
| 1 | Screw_Terminal_01x04 | Molex_KK-396_5273-04A_1x04_P3.96mm_Vertical | J3 |
| 1 | BOCINA | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | J4 |
| 1 | Screw_Terminal_01x04 | PinSocket_1x04_P2.54mm_Vertical | J5 |
| 1 | Fuse | Fuseholder_Clip-5x20mm_Littelfuse_445-030_Inline_P20.50x5.20mm_D1.30mm_Horizontal | F1 |
| 1 | SW_DPST_x2 | SW_DIP_SPSTx01_Slide_9.78x4.72mm_W7.62mm_P2.54mm | SW1 |
| 1 | SW1 | SW_PUSH-12mm_Wuerth-430476085716 | SW2 |
| 2 | SW_DPST_x2 | SW_PUSH-12mm_Wuerth-430476085716 | SW3, SW4 |
| 3 | 1uF | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | C1, C4, C5 |
| 1 | 0.33uF | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | C2 |
| 1 | 1uF | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | C3 |
| 3 | 10k | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R3, R5, R6 |
| 1 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4 |
Auto design files
The KiCad project lives in the BraulioRom20/AutoYPF78 repository on GitHub; these links point at the commit this page was built from.
- Layouthardware/auto/auto.kicad_pcb
- Schematichardware/auto/auto.kicad_sch
Auto: common questions
What microcontroller does the Auto use?
The Auto is built around the esp32, from the ESP32 family.
How big is the Auto PCB?
The Auto measures 120.3 × 82.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Auto?
26 components, from 20 distinct parts. The full bill of materials is listed on this page.
Where can I download the Auto design files?
From the BraulioRom20/AutoYPF78 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Auto design in my own project?
The repository has no license, so all rights stay with BraulioRom20. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Auto 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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