2 layers191 × 151 mm
Follow The Line
billtsol/Follow-The-Line
This project is an example of how to use an Arduino board, QTR reflectance sensor, and a motor driver shield to create a simple follow-the-line robot.
23 parts1
2 layers127 × 82.6 mm
PacBot 2019-2020
HarvardURC/Pacbot20Repository for the Harvard Undergraduate Robotics Club's Pacbot team
- Size
- 127 × 82.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 77
- Pads
- 168
- Tracks, vias
- 268, 26
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 6 Oct 2016
- Updated
- 5 Feb 2026
Overview
PacBot 2019-2020 is an open-source printed circuit board by HarvardURC, from the HarvardURC/Pacbot repository on GitHub. It is a 2-layer board of 127 × 82.6 mm with 20 parts on 77 nets, routed with 268 tracks and 26 vias.
It is built around the DRV8835DSS and L7805. Its parts include 8 capacitors, 7 ICs and 5 connectors. It belongs with the NXP (LPC, Kinetis, i.MX RT) boards of this library.
Main components
2
DRV8835DSS
WSON-12-EP(2x3)-40℃~+150℃ 1.5A 2 2V~7V 305mΩ 95nA Yes WSON-12-EP(2x3) Brushed DC Motor Drivers ROHSTexas InstrumentsStepper Motor Driver
L7805
TO-220ST0℃~+125℃@(Tj) 1 1.2A 20V 2V@(1A) 42uV 500uA 5V 73dB@(120Hz) Fixed Positive Short Circuit Protection TO-220ST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSOSENVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdPacBot
Repository for the Harvard Undergraduate Robotics Club's PacBot team
NOTE: Because this repository includes submodules, it should be cloned using
git clone --recursive.
The rules for PacBot and helpful images can be found at our website: https://harvardrobotics.com/pacbots
Codebase for 2021-2022 can be found in the master branch. Codebases for past years can be found in their respective branches.
The current Pacman game code can be found in 'src/gameEngine'. The README there describes how to run the game.
The code for the Harvard robotics team's bot can be found in the 'src/botCode' folder (if you're looking for inspiration).
Documentation for participating teams regarding the game board/arena, bot designs from past years, and how to communicate with the game can be found in the 'docs' directory. Baseline code is provided here that teams can use to code their bots.
Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 1uF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4, C5, C6, C7, C8 |
| 4 | VL6180X | pacbot:conn_ir | U3, U5, U6, U7 |
| 1 | Conn_Batt | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J5 |
| 1 | DRV8835 | pacbot:drv8835 | U4 |
| 1 | L7805 | Connector_Stocko:Stocko_MKS_1653-6-0-303_1x3_P2.50mm_Vertical | U1 |
| 1 | RPi_GPIO | ADA3708:ADA3708_RPI-ZERO | J4 |
| 1 | Teensy-LC | teensy:Teensy30_31_32_LC | U2 |
| 1 | conn_imu | pacbot:conn_imu | J1 |
| 1 | conn_motor-encoder_L | Connector_JST:JST_PH_B6B-PH-K_1x06_P2.00mm_Vertical | J2 |
| 1 | conn_motor-encoder_R | Connector_JST:JST_PH_B6B-PH-K_1x06_P2.00mm_Vertical | J3 |
Questions
How big is the PacBot 2019-2020 PCB?
It measures 127 × 82.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the PacBot 2019-2020 use?
20 parts, built around the DRV8835DSS and L7805. 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 PacBot 2019-2020 KiCad files?
From the HarvardURC/Pacbot repository on GitHub, at the commit this page was made from: the board is docs/Public Designs/2020-21 Bot/PCB/PacBot_2019-2020.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the PacBot 2019-2020 design in my own project?
Its repository states no licence, so its author keeps all rights: ask HarvardURC before reusing the design.
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