4 layers53.2 × 53.2 mm
Smart lcc
variegated-coffee/open-lcc-board
Schematics and PCB files for the Open LCC hardware
117 parts30CERN-OHL-P-2.0
2 layers54 × 34 mm
Testing2
GKevinLi/babys-first-pcbAn ESP32 devboard designed to be a drone flight controller. Includes a gyro, accelerometer, and a buck converter to step down drone battery voltage (14.8v) to 5v. Includes all the other basic devboard stuff, like an esp32, usb-c port, and io pins.
- Size
- 54 × 34 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 39
- Nets
- 70
- Pads
- 260
- Tracks, vias
- 399, 69
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 6 Jun 2025
- Updated
- 1 Jul 2025
Overview
Testing2 is an open-source printed circuit board by GKevinLi, from the GKevinLi/babys-first-pcb repository on GitHub. It is a 2-layer board of 54 × 34 mm with 39 parts on 70 nets, routed with 399 tracks and 69 vias.
It is built around the ESP32-S3-WROOM-1-N8, TPS82130SIL and MPU-6050, with the TLV76133DCY and USBLC6-2P6 among its other parts. Its parts include 12 capacitors, 10 resistors, 5 ICs, 3 diodes and 3 connectors. It belongs with the robots and motor control and microcontroller boards boards and the ESP32 boards of this library.
Main components
5
ESP32-S3-WROOM-1-N8
SMD,25.5x18mm-40℃~+85℃ -98.2dBm 2.4GHz 20.5dBm 355mA 3V~3.6V 95mA Bluetooth5.0 ESP32-S3 Chip On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
TPS82130SIL
3V to 17V Input 3A Step-Down Converter MicroSiP™ Module with Integrated InductorTexas InstrumentsUncategorised
MPU-6050
QFN-24-EP(4x4)-40℃~+85℃ 16bit 1KB 2.375V~3.46V 5uA Accelerometer Gyroscope I2C X,Y,Z X,Y,Z ±16g ±2000dps QFN-24-EP(4x4) Accelerometers ROHSTDK InvenSenseAccelerometers
TLV76133DCY
SOT-223-40℃~+125℃ 1 1.6V@(1A) 16V 1A 3.3V 60dB@(1kHz) 60uA 60uVrms Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown、Input under-voltage protection、Built-in soft-start Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
USBLC6-2P6
SOT-666-6-40℃~+125℃ 150nA 17V 2 3.5pF 5.25V 5A@8/20us 6V ESD IEC 61000-4-2 Unidirectional SOT-666-6 ESD and Surge Protection (TVS/ESD) ROHSSTMicroelectronicsESD And Surge Protection (TVS/ESD)
README
README.mdCustom ESP32 Devboard
It's a custom ESP32 devboard. It was designed to be a drone flight controller, but it's suitable for other projects as well. I wanted to make this because I thought it was a good idea to try to design a drone with custom electronics. Turns out, electronics are hard, so I just made this. It'll go on the drone when all the other parts are done. This project is being made for and funded by Hack Club's Highway program.
This is my first circuit board by the way, hopefully I did a good job. I'm planning on designing my own brushless motor speed controller next, but I may just move on to the drone if that's too hard.
Features
- Integrated gyro and accelerometer (MPU-6050)
- Integrated magnetometer
- Voltage Regulator that drops drone battery voltage (14.8v) to 5v
- ESP32 Chip for processing, wifi, and bluetooth connectivity
- USB-C 2.0 port for programming and power supply
- Boot and Reset buttons
- A whole lotta GPIO pins
BOM
| Item | Usage | Source | Price | Quantity |
|---|---|---|---|---|
| PCB | This is the project lol | JLCPCB | $77 | 5 (2 assembled) |
Parts
39| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 0u1f | Capacitor_SMD:C_0201_0603Metric | C2, C3, C5, C10 |
| 4 | 10uf | Capacitor_SMD:C_0603_1608Metric | C1, C4, C6, C8 |
| 4 | MountingHole | MountingHole:MountingHole_2.2mm_M2 | H1, H2, H3, H4 |
| 2 | 100k | Resistor_SMD:R_0201_0603Metric | R6, R9 |
| 2 | 10k | Resistor_SMD:R_0201_0603Metric | R4, R5 |
| 2 | 4.7k | Resistor_SMD:R_0201_0603Metric | R7, R8 |
| 2 | 5k1 | Resistor_SMD:R_0201_0603Metric | R1, R2 |
| 2 | Conn_01x16 | Connector_PinHeader_2.54mm:PinHeader_1x16_P2.54mm_Vertical | J2, J3 |
| 2 | D_Schottky | Diode_SMD:D_0603_1608Metric | D2, D3 |
| 2 | SW_Push | Button_Switch_SMD:SW_Push_1P1T_NO_CK_KMR2 | SW1, SW3 |
| 1 | 10nf | Capacitor_SMD:C_0201_0603Metric | C11 |
| 1 | 1uf | Capacitor_SMD:C_0201_0603Metric | C7 |
| 1 | 22uf | Capacitor_SMD:C_0603_1608Metric | C12 |
| 1 | 3.3nf | Capacitor_SMD:C_0201_0603Metric | C9 |
| 1 | 5.1k | Resistor_SMD:R_0201_0603Metric | R3 |
| 1 | 523k | Resistor_SMD:R_0402_1005Metric | R10 |
| 1 | ESP32-S3-WROOM-1 | RF_Module:ESP32-S3-WROOM-1 | U1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | MPU-6050 | Sensor_Motion:InvenSense_QFN-24_4x4mm_P0.5mm | U4 |
| 1 | TLV76133DCY | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U5 |
| 1 | TPS82130 | Package_LGA:Texas_SIL0008D_MicroSiP-8-1EP_2.8x3mm_P0.65mm_EP1.1x1.9mm_ThermalVias | U2 |
| 1 | USBLC6-2P6 | Package_TO_SOT_SMD:SOT-666 | U3 |
| 1 | USB_C_Receptacle_USB2.0_14P | Connector_USB:USB_C_Receptacle_HCTL_HC-TYPE-C-16P-01A | J1 |
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Questions
How big is the Testing2 PCB?
It measures 54 × 34 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Testing2 use?
39 parts, built around the ESP32-S3-WROOM-1-N8, TPS82130SIL, MPU-6050 and TLV76133DCY. 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 Testing2 KiCad files?
From the GKevinLi/babys-first-pcb repository on GitHub, at the commit this page was made from: the board is testing2.kicad_pcb and its schematic testing2.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Testing2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask GKevinLi before reusing the design.