4 layers62 × 60.8 mm
Pcbcax
7bwiiza/Robot-creation
Uni project of a 3D model of a 5dof robot using Solidedge and motor control using KiCAD and MATLAB
58 parts
2 layers75 × 72.6 mm
Robot Snake
willqyu/Robot-SnakeCustom PCBs designed for each module, comm over I2C, Pi Pico as slave.
- Size
- 75 × 72.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 34
- Nets
- 46
- Pads
- 148
- Tracks, vias
- 232, 17
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 9 May 2024
- Updated
- 26 Aug 2024
Overview
Robot Snake is an open-source printed circuit board by willqyu, from the willqyu/Robot-Snake repository on GitHub. It is a 2-layer board of 75 × 72.6 mm with 34 parts on 46 nets, routed with 232 tracks and 17 vias.
It is built around the L293D and AMS1117-5.0. Its parts include 4 capacitors, 4 resistors, 4 diodes, 3 ICs and 2 connectors. It belongs with the robots and motor control boards and the RP2040 boards of this library.
Main components
2
L293D
DIP-16-40℃~+150℃ 1.2A 2 4.5V~36V 4mA 600mA DIP-16 Brushed DC Motor Drivers ROHSSTMicroelectronicsStepper Motor Driver
AMS1117-5.0
SOT-223-40℃~+125℃ 1 1.3V 15V 1A 5V 60dB Fixed Positive Short Circuit Protection、Thermal shutdown SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdRobot Snake
Firmware for modular robotic snake, as designed and built for the MET IIA Major Project 2024. Team: William Y, Piers B, Catherine L, Nick N
Module Design
Servo-actuated cables for 2DoF per module.
Custom PCBs designed for each module, comm over I2C, Pi Pico as slave.
Head uses Pi Zero with PiCam v2 and Neopixel Ring
Gallery
Schematics
Parts
34| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 15 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R4 |
| 4 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1, D2, D3, D4 |
| 3 | MountingHole | MountingHole:MountingHole_2.5mm_Pad_TopBottom | H1, H2, H3 |
| 2 | 0.1nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C4 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2 |
| 2 | Motor_DC | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | M1, M2 |
| 1 | 3v3 | TestPoint:TestPoint_Pad_D2.5mm | 3v3 |
| 1 | AMS1117-5.0 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U3 |
| 1 | Bat | TestPoint:TestPoint_Pad_D2.5mm | 5v |
| 1 | Conn_02x06_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Vertical | J6 |
| 1 | GND | TestPoint:TestPoint_Pad_D2.5mm | GND |
| 1 | Global Bus IN | Connector_JST:JST_VH_B4P-VH_1x04_P3.96mm_Vertical | Global Bus IN |
| 1 | Global Bus OUT | Connector_JST:JST_VH_B4P-VH_1x04_P3.96mm_Vertical | Global Bus OUT |
| 1 | L293D | Package_DIP:DIP-16_W7.62mm | U1 |
| 1 | LOGO | LOGO | G*** |
| 1 | Pico | MCU_RaspberryPi_and_Boards:RPi_Pico_SMD no debug | U2 |
| 1 | SCL | TestPoint:TestPoint_Pad_D2.5mm | SCL |
| 1 | SDA | TestPoint:TestPoint_Pad_D2.5mm | SDA |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1 |
| 1 | SW_SPDT | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | SW2 |
| 1 | Servo 1 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | Servo 1 |
| 1 | Servo 2 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | Servo 2 |
| 1 | USB_B_Micro | Library:MicroUSB | J5 |
Questions
How big is the Robot Snake PCB?
It measures 75 × 72.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Robot Snake use?
34 parts, built around the L293D and AMS1117-5.0. 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 Robot Snake KiCad files?
From the willqyu/Robot-Snake repository on GitHub, at the commit this page was made from: the board is electronics/Robot Snake/Robot Snake.kicad_pcb and its schematic electronics/Robot Snake/Robot Snake.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Robot Snake design in my own project?
Its repository states no licence, so its author keeps all rights: ask willqyu before reusing the design.
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