4 layers90 × 66 mm
Iron node
enkhbold470/iron-node
ESP32-S3 industrial gateway: W5500 Ethernet, isolated RS-485 (ADM2587E), CAN, 9-36 V input. 4-layer KiCad 10 board.
83 partsCERN-OHL-S-2.0
2 layers100 × 41 mm
Chessbot
vuktacic/chessler- Size
- 100 × 41 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 51
- Nets
- 81
- Pads
- 216
- Tracks, vias
- 288, 114
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 14 Jun 2026
- Updated
- 8 Sep 2026
Overview
Chessbot is an open-source printed circuit board by vuktacic, from the vuktacic/chessler repository on GitHub, published under the MIT licence. It is a 2-layer board of 100 × 41 mm with 51 parts on 81 nets, routed with 288 tracks and 114 vias.
It is built around the TMC2209SILENTSTEPSTICK, CH340C and ESP32-WROOM-32D-N4, with the MP2393GTL-Z, GT-USB-7047B and CC0603KRX7R9BB104 among its other parts. Its parts include 15 capacitors, 15 resistors, 6 ICs, 3 diodes and 3 transistors. It belongs with the ESP32 boards of this library.
Main components
12TMC2209SILENTSTEPSTICK
-Power Management - Modules ROHSTRINAMIC Motion Control GmbHModules
CH340C
SOP-16-20℃~+70℃ 2Mbps 3.3V、5V 50uA 7mA Transceiver USB 2.0 SOP-16 USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB Converters
ESP32-WROOM-32D-N4
SMD,25.5x18mm-40℃~+85℃ -98dBm 2.4GHz 2.7V~3.6V 20.5dBm Bluetooth4.2 ESP32-DOWD On-board PCB Antenna UART、SPI、I2C、GPIO SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
MP2393GTL-Z
SOT-583-40℃~+125℃@(TJ) 1 200uA 3A 4.2V~24V 650kHz 800mV~13V Adjustable Buck Buck Built-in Yes SOT-583 DC-DC Converters ROHSMonolithic Power SystemsDC-DC Converters
GT-USB-7047B
SMD-40℃~+85℃ 1 1.58mm 10,000 Cycles 16P 24V 5A 7.35mm Black Female Surface Mount, Right Angle Type-C USB 2.0 SMD USB Connectors ROHSG-SwitchUSB Connectors
CC0603KRX7R9BB104
0603100nF 50V X7R ±10% 0603 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSYAGEOMultilayer Ceramic Capacitors MLCC - SMD/SMT
CL21A226MAQNNNE
080522uF 25V X5R ±20% 0805 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSSamsung Electro-MechanicsMultilayer Ceramic Capacitors MLCC - SMD/SMT
RVT1V471M1010
SMD,D10xL10.2mm-55℃~+105℃ 10.2mm 10mm 2000hrs@105℃ 35V 470uF ±20% SMD,D10xL10.2mm Aluminum Electrolytic Capacitors - SMD ROHSHONORAluminum Electrolytic Capacitors - SMD
CMI201209U2R2KT
08052.2uH 35@10MHz 50MHz 50mA 600mΩ ±10% 0805 Inductors (SMD) ROHSGuangdong Fenghua Advanced Tech (FH)Inductors (SMD)0603B682K500NT
060350V 6.8nF X7R ±10% 0603 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSGuangdong Fenghua Advanced Tech (FH)Multilayer Ceramic Capacitors MLCC - SMD/SMT
BL-HJC36G-AV-TRB
0603-40℃~+85℃ 100mcd 120° 20mA 2V 50mW 605nm 610nm Amber Discrete Diode Water Clear 0603 LED Indication - Discrete ROHSBrtLedLED Indication - Discrete
AO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.45V 1.4W 30V 48mΩ@2.5V 5.7A 50pF 630pF 75pF 7nC@10V N-Channel SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
README
README.mdchessler/chessbot
A robot that plays chess. It uses a camera to detect Aruco tags on the board corners and the pieces, and an electromagnet on a gantry under the board to move the pieces. Designed for Hack Club's Outpost program. I wanted to do something involving Aruco tags outside of FRC, and this seemed like a good project to make.
Structure
- ./assets: Repo images
- ./cad: 3d models
- ./core: esp32 firmware
- ./pcb: Kicad design files.
- ./vision: Computer side vision code
- ./bom.csv: Bill of materials
- ./po.csv: Purchase order
- ./JOURNAL.md: Project journal
View the PCB on KiCanvas:
CAD
Schematic
PCB
Parts
51| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 0.1uF | easyeda2kicad:C0603 | C1, C3, C4, C5, C9, C14 |
| 5 | 10kΩ | easyeda2kicad:R0805 | R1, R2, R4, R5, R6 |
| 3 | 22uF | easyeda2kicad:C0805 | C8, C10, C16 |
| 2 | 1kΩ | easyeda2kicad:R0603 | R12, R15 |
| 2 | 470uF | easyeda2kicad:CAP-SMD_BD10.0-L10.3-W10.3-FD | C6, C7 |
| 2 | 5.1kΩ | easyeda2kicad:R0603 | R13, R14 |
| 2 | Conn_01x03 | Connector_JST:JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | J2, J3 |
| 2 | Q_NPN | easyeda2kicad:SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR | Q1, Q2 |
| 2 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1, SW2 |
| 2 | Stepper_Motor_bipolar | Connector_JST:JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | M1, M2 |
| 2 | TMC2209_SILENTSTEPSTICK | TMC2209_SILENTSTEPSTICK:MODULE_TMC2209_SILENTSTEPSTICK_INTERNAL SILKSCREEN | U1, U2 |
| 1 | 100Ω | easyeda2kicad:R0603 | R3 |
| 1 | 10pF | easyeda2kicad:C0603 | C13 |
| 1 | 10uF | easyeda2kicad:C0603 | C2 |
| 1 | 13kΩ | easyeda2kicad:R0603 | R8 |
| 1 | 1uF | easyeda2kicad:C0603 | C12 |
| 1 | 2.2uH | easyeda2kicad:L0805 | L2 |
| 1 | 20Ω | easyeda2kicad:R0603 | R11 |
| 1 | 22kΩ | easyeda2kicad:R0603 | R10 |
| 1 | 40.2kΩ | easyeda2kicad:R0603 | R7 |
| 1 | 560kΩ | easyeda2kicad:R0603 | R9 |
| 1 | 6.8nF | easyeda2kicad:C0603 | C11 |
| 1 | CH340C_C7464026 | easyeda2kicad:SOP-16_L10.0-W3.9-P1.27-LS6.0-BL | U5 |
| 1 | ESP32-WROOM-32D | easyeda2kicad:WIFIM-SMD_39P-L25.5-W18.0-P1.27-BL | U3 |
| 1 | ElectromagneticActor | Connector_JST:JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | L1 |
| 1 | GT-USB-7047B | easyeda2kicad:MICRO-USB-SMD_GT-USB-7047B | U6 |
| 1 | LED | easyeda2kicad:LED0603-R-RD_AMBER | D3 |
| 1 | MP2393GTL-Z | easyeda2kicad:SOT-583-8_L2.1-W1.2-P0.50-LS1.6-BL | U4 |
| 1 | NMOS | easyeda2kicad:SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR | Q3 |
| 1 | SMBJ15A_C83846 | easyeda2kicad:SMB_L4.6-W3.6-LS5.3-RD | D2 |
| 1 | SS14 | easyeda2kicad:SMA_L4.2-W2.6-LS5.0-RD_1 | D4 |
| 1 | USB_C_ONLY_POWER | easyeda2kicad:USB_C_PD_BOARD | J1 |
Questions
How big is the Chessbot PCB?
It measures 100 × 41 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Chessbot use?
51 parts, built around the TMC2209SILENTSTEPSTICK, CH340C, ESP32-WROOM-32D-N4 and MP2393GTL-Z. 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 Chessbot KiCad files?
From the vuktacic/chessler repository on GitHub, at the commit this page was made from: the board is pcb/chessbot.kicad_pcb and its schematic pcb/chessbot.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Chessbot design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
Similar boards
- 4 layers100 × 75 mm
Freedo radio
CappyT/freedo
Local coordinator for tado V3+ heating devices, with a Home Assistant integration and add-on
135 parts33Apache-2.0 - 2 layers99 × 90 mm
- 2 layers43.6 × 43.6 mm
Esp32 dron
Sagaz0501/esp32-drone
PCB ESP32 quadcopter: KiCad hardware + Madgwick IMU firmware + WiFi web UI
75 parts1MIT - 4 layers66.4 × 66.4 mm
Rera
fdiwth/tvc-drone
This repository contains the documentation, hardware designs, and source code for a Thrust Vector Control (TVC) drone.
140 parts34GPL-3.0 - 2 layers72 × 67 mm
EV Design Challenge
land-barrett/EV_Design_Challenge
KiCAD files of 2026 TAMU SAE Formula EV electrical design challenge
78 parts - 4 layers109.5 × 61.1 mm
Daanmem esp32 board FO2DABBFD842
manhoosbilli1/ESP32-controlled-peltier-controller-CE-pre-certified-untested
Contains files for esp32 peltier controller with fans, thermistors, and various other outputs. this is the version 2 focusing on emc and CE certification. yet to be tested in a lab
191 parts - 4 layers100 × 100 mm
