2 layers94 × 79 mm
2 layers70 × 58 mm
6 - Lizard RC
TRD-B/Lizard1293D printed RC race car with custom electronics
- Size
- 70 × 58 mm
- Copper layers
- 2
- Thickness
- 1.67 mm
- Parts
- 32
- Nets
- 50
- Pads
- 130
- Tracks, vias
- 129, 42
- Pours
- 89
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 22 Dec 2024
- Updated
- 14 Aug 2025
Overview
6 - Lizard RC is an open-source printed circuit board by TRD-B, from the TRD-B/Lizard repository on GitHub, published under the CC-BY-4.0 licence. It is a 2-layer board of 70 × 58 mm with 32 parts on 50 nets, routed with 129 tracks and 42 vias.
It is built around the ESP32-WROOM-32U, ADS1115 and IRLML0030. Its parts include 11 connectors, 8 resistors, 4 capacitors, 4 transistors and 2 ICs. It belongs with the ESP32 boards of this library.
Main components
3
ESP32-WROOM-32U
SMD,19.2x18mm-40℃~+85℃ -97dBm 2.4GHz 20.5dBm 3V~3.6V Bluetooth4.2 ESP32-DOWD UART、SDIO、SPI、I2C、GPIO、PWM、ADC、DAC、CAN SMD,19.2x18mm WiFi Modules ROHSEspressif SystemsWiFi ModulesADS1115
UncategorisedTexas Instruments
IRLML0030
SOT-23-55℃~+150℃ 1 N-channel 2.3V 2.6nC 27mΩ@10V 30V 382pF 39pF 5.3A SOT-23 MOSFETs ROHSGuangdong HottechMOSFETs
README
README.mdLizard is a 3D printed RC race car for onroad usage. The full description of this project is available on Instructables: https://www.instructables.com/Lizard-3D-Printed-RC-Race-Car/
Here, you can find the Gerber files for the PCBs and the sketches required for the ESP32 microcontroller in the remote control and in the car. Also, you can find the codes required to operate a separate data logger alongside the car, including MATLAB functions to evaluate the recorded data graphically. Further, all files for printing are provided as .stl and .stp files.
Also, I added the BOM as an Excel file, and you can find .stp files of the different part groups as well as of the full car assembly, as an aid in assembling the car.
Parts
32| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 1k | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R3, R4, R5, R9 |
| 4 | IRLML0030 | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q1, Q2, Q3, Q4 |
| 2 | 22µF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C5 |
| 2 | MountingHole_Pad | MountingHole:MountingHole_3.5mm_Pad_TopBottom | H1, H2 |
| 2 | ~ | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R7, R8 |
| 1 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C6 |
| 1 | 10µF | Capacitor_SMD:C_2220_5750Metric_Pad1.97x5.40mm_HandSolder | C3 |
| 1 | 22k | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R2 |
| 1 | 47k | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R1 |
| 1 | ADS1115 | customfootprints:ADS1115 | IC1 |
| 1 | BATT_Conn | Connector_Molex:Molex_SL_171971-0002_1x02_P2.54mm_Vertical | J1 |
| 1 | BT_LL | Connector_Molex:Molex_SL_171971-0004_1x04_P2.54mm_Vertical | J10 |
| 1 | BT_LR | Connector_Molex:Molex_SL_171971-0004_1x04_P2.54mm_Vertical | J11 |
| 1 | BT_UL | Connector_Molex:Molex_SL_171971-0004_1x04_P2.54mm_Vertical | J9 |
| 1 | BT_UR | Connector_Molex:Molex_SL_171971-0004_1x04_P2.54mm_Vertical | J12 |
| 1 | ESP32-WROOM-32U | customfootprints:NodeMCU-ESP32 | U1 |
| 1 | Gaptec LME78_03-1.0 | customfootprints:LME78_03-1.0 | DC/DC1 |
| 1 | JoyL | Connector_Molex:Molex_SL_171971-0003_1x03_P2.54mm_Vertical | J4 |
| 1 | JoyR | Connector_Molex:Molex_SL_171971-0003_1x03_P2.54mm_Vertical | J3 |
| 1 | OLED1 | Connector_Molex:Molex_SL_171971-0004_1x04_P2.54mm_Vertical | J8 |
| 1 | OLED2 | Connector_Molex:Molex_SL_171971-0004_1x04_P2.54mm_Vertical | J13 |
| 1 | PWR_SW | Connector_Molex:Molex_SL_171971-0002_1x02_P2.54mm_Vertical | J2 |
| 1 | Poti | Connector_Molex:Molex_SL_171971-0003_1x03_P2.54mm_Vertical | J5 |
Questions
How big is the 6 - Lizard RC PCB?
It measures 70 × 58 mm and has 2 copper layers, 1.67 mm thick.
What parts does the 6 - Lizard RC use?
32 parts, built around the ESP32-WROOM-32U, ADS1115 and IRLML0030. 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.
Where can I download the 6 - Lizard RC KiCad files?
From the TRD-B/Lizard repository on GitHub, at the commit this page was made from: the board is RC PCB/6 - Lizard_RC.kicad_pcb and its schematic Car PCB/5 - Lizard_Car.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the 6 - Lizard RC design in my own project?
Its repository publishes it under the CC-BY-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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