4 layers62 × 107 mm
4 layers80.4 × 79.8 mm
CDFR2027-PAMIs ELEC control
robotronik/CDFR2027-PAMIs-ELEC1PCBs for Eurobot's 2027 SIMAs
- Size
- 80.4 × 79.8 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 91
- Nets
- 72
- Pads
- 330
- Tracks, vias
- 488, 304
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 30 Sep 2026
- Updated
- 31 Oct 2026
Overview
CDFR2027-PAMIs ELEC control is an open-source printed circuit board by robotronik, from the robotronik/CDFR2027-PAMIs-ELEC repository on GitHub. It is a 4-layer board of 80.4 × 79.8 mm with 91 parts on 72 nets, routed with 488 tracks and 304 vias.
It is built around the ESP32-S3-WROOM-1-N8, DRV8871DDA and AP63300WU, with the USBLC6-2P6 and AP2112K-3.3 among its other parts. Its parts include 25 resistors, 23 capacitors, 2 diodes, 1 IC and 1 transistor. It belongs with 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
DRV8871DDA
SO-8-EP-40℃~+125℃ 1 10uA 3.6A 565mΩ PWM Yes SO-8-EP Brushed DC Motor Drivers ROHSTexas InstrumentsStepper Motor Driver
AP63300WU
TSOT-23-6-40℃~+125℃ 1 22uA 3.8V~32V 3A 500kHz 800mV~31V Adjustable Buck Buck Built-in Yes TSOT-23-6 DC-DC Converters ROHSDiodes IncorporatedDC-DC Converters
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)
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
README
ControlBoard/README.mdControlBoard
The ControlBoard is the low-level power and motion board of the robot. It is responsible for drivetrain control, actuator command management, IO handling, and the electrical interfaces required to move and operate the robot reliably.
This board is the execution layer of the robot architecture: it receives commands from the BrainBoard and converts them into motion, switching, and actuator behavior.
Role in the robot
The ControlBoard focuses on the physical actuation layer:
- Motor drive and motion control
- Actuator control and PWM management
- Power distribution and regulation
- Digital/analog I/O interfaces
- Safety and command routing from the brain layer
Key areas covered
The KiCad project is structured around several functional blocks:
power.kicad_sch— power input, regulation, and distributionmotors.kicad_sch— drivetrain motor interfaces and driver electronicsactuators.kicad_sch— actuator control and related outputsio.kicad_sch— general-purpose I/O and interfacingCDFR2027-PAMIs-ELEC-control.kicad_sch— main schematic integration
Typical responsibilities
- Driving the robot's wheels and movement systems
- Controlling servos, actuators, and mechanism outputs
- Managing switching and I/O states
- Distributing power to the vehicle subsystems
- Translating commands from the higher-level strategy layer into real hardware actions
Board purpose
This board handles the operational part of the robot, while the BrainBoard handles higher-level strategy and coordination.
Related project
../BrainBoard/— central strategic logic and robot intelligence../README.md— repository overview
Status
In development.
Parts
91| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 10K | Resistor_SMD:R_0805_2012Metric | R9, R10, R12, R13, R15, R16 |
| 4 | 100nF | Capacitor_SMD:C_0805_2012Metric | C7, C13, C15, C17 |
| 4 | 1uF | Capacitor_SMD:C_0603_1608Metric | C4, C10, C11, C18 |
| 4 | 22uF | Capacitor_SMD:C_0805_2012Metric | C20, C21, C22, C23 |
| 4 | Conn_01x03_Pin | Connector_JST:JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | SERVO_1, SERVO_2, SERVO_3, SERVO_4 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 4 | TestPoint | TestPoint:TestPoint_Pad_1.0x1.0mm | TP1, TP2, TP3, TP4 |
| 3 | 24K | Resistor_SMD:R_0805_2012Metric | R11, R14, R17 |
| 3 | 47uF | PCM_SparkFun-Capacitor:Panasonic_F | C12, C14, C16 |
| 3 | Conn_01x02_Pin | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | DC_OUT_1, DC_OUT_2, DC_OUT_3 |
| 3 | DRV8871DDA | Package_SO:Texas_HTSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.95x4.9mm_Mask2.4x3.1mm_ThermalVias | DC_DRIVER1, DC_DRIVER2, DC_DRIVER3 |
| 3 | RED | LED_SMD:LED_0603_1608Metric | LED_3.3V1, LED_5V1, LED_BATT1 |
| 2 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C1, C3 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric | R2, R5 |
| 2 | 22µF | Capacitor_SMD:C_0805_2012Metric | C8, C9 |
| 2 | 470 | Resistor_SMD:R_0603_1608Metric | R6, R23 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R21, R22 |
| 2 | Conn_01x02_Pin | Connector_AMASS:AMASS_XT30U-M_1x02_P5.0mm_Vertical | BAU1, C_BATT1 |
| 2 | D_Schottky | Diode_SMD:D_0603_1608Metric | D1, D2 |
| 2 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1, JP2 |
| 1 | 100uF | Capacitor_SMD:CP_Elec_10x14.3 | C5 |
| 1 | 10K | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R25 |
| 1 | 10k | PCM_SparkFun-Resistor:R_0603_1608Metric | R24 |
| 1 | 10µF | Capacitor_SMD:C_0805_2012Metric | C6 |
| 1 | 150k | Resistor_SMD:R_0805_2012Metric | R18 |
| 1 | 1K | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | 1K | PCM_SparkFun-Resistor:R_0603_1608Metric | R20 |
| 1 | 1k | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 2.2K | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 22uF | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | 30.1k | Resistor_SMD:R_0805_2012Metric | R19 |
| 1 | 30K | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 47pF | Capacitor_SMD:C_0805_2012Metric | C19 |
| 1 | 6.8µH | Inductor_SMD_Wurth:L_Wurth_WE-LQSH-4020 | L1 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | LDO1 |
| 1 | AP63300 | Package_TO_SOT_SMD:TSOT-23-6 | BUCK1 |
| 1 | Conn_01x04_Pin | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | I2C1 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | UART1 |
| 1 | Conn_01x07_Pin | Connector_JST:JST_XH_B7B-XH-A_1x07_P2.50mm_Vertical | SPI1 |
| 1 | ESP32-S3-WROOM-1 | RF_Module:ESP32-S3-WROOM-1 | ESP32-S3-WROOM1 |
| 1 | Fuse | Fuse:Fuse_0603_1608Metric | F1 |
| 1 | GREEN | Diode_SMD:D_0603_1608Metric | USB1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | S_ESP1 |
| 1 | PMOS | Package_TO_SOT_SMD:SOT-223 | Q1 |
| 1 | Push_BOOT | Button_Switch_THT:SW_PUSH_6mm | SW_BOOT1 |
| 1 | Push_ENABLE | Button_Switch_THT:SW_PUSH_6mm | SW_ENABLE1 |
| 1 | USBLC6-2P6 | Package_TO_SOT_SMD:SOT-666 | U1 |
| 1 | USB_C_Receptacle_USB2.0_14P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | USB_C1 |
The 90 most common of 91 parts.
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Questions
How big is the CDFR2027-PAMIs ELEC control PCB?
It measures 80.4 × 79.8 mm and has 4 copper layers, 1.6 mm thick.
What parts does the CDFR2027-PAMIs ELEC control use?
91 parts, built around the ESP32-S3-WROOM-1-N8, DRV8871DDA, AP63300WU and USBLC6-2P6. 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 CDFR2027-PAMIs ELEC control KiCad files?
From the robotronik/CDFR2027-PAMIs-ELEC repository on GitHub, at the commit this page was made from: the board is ControlBoard/CDFR2027-PAMIs-ELEC-control.kicad_pcb and its schematic ControlBoard/CDFR2027-PAMIs-ELEC-control.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the CDFR2027-PAMIs ELEC control design in my own project?
Its repository states no licence, so its author keeps all rights: ask robotronik before reusing the design.