2 layers124 × 40 mm
RedFIS
tothpetiszilard/a3_8p_redFIS
Hacking into Audi A3 8P Driver Information System
77 parts15AGPL-3.0
4 layers150 × 120 mm
A single-circuit board robot
- Size
- 150 × 120 mm
- Copper layers
- 4
- Thickness
- 1.61 mm
- Parts
- 51
- Nets
- 104
- Pads
- 265
- Tracks, vias
- 281, 43
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 20 Aug 2025
- Updated
- 20 Aug 2025
Overview
Robo is an open-source printed circuit board by mikked2101, from the mikked2101/ESP_bot repository on GitHub. It is a 4-layer board of 150 × 120 mm with 51 parts on 104 nets, routed with 281 tracks and 43 vias.
It is built around the ESP32-S3, AP63203WU and BY25Q80ESTIG(T), with the L293DD, USBLC6-2SC6 and CF35242D0RE-NH among its other parts. Its parts include 21 capacitors, 8 resistors, 7 ICs, 3 diodes and 3 inductors. It belongs with the ESP32 boards of this library.
Main components
6
ESP32-S3
QFN-56-EP(7x7)-40℃~+105℃ -98.4dBm 150Mbps 2.412GHz~2.484GHz 2.4GHz 21dBm 340mA 3V~3.6V 88mA SPI、USB、UART、ADC、I2C、I2S、PWM WiFi transceiver QFN-56-EP(7x7) RF Transceiver ICs ROHSEspressif SystemsRF Transceiver ICs
AP63203WU
TSOT-23-6-40℃~+85℃@(TA) 1 1.1MHz 22uA 2A 3.3V 3.8V~32V Buck Built-in Fixed Overcurrent Protection、Light load efficient mode、Cycle-by-cycle current limiting、Hiccup current limiting、EMI optimization (spread spectrum) Step-down type Yes TSOT-23-6 DC-DC Converters ROHSDiodes IncorporatedDC-DC Converters
BY25Q80ESTIG(T)
SOP-8-150mil100,000 cycles 120MHz 150ms 2.7V~3.6V 20 Years 400us 5uA 8Mbit SPI SOP-8-150mil NOR FLASH ROHSBOYAMICRONOR FLASH
L293DD
SOP-200℃~+70℃ 2 2 4.5V~36V 4.5V~7V 600mA Bipolar Driver Yes SOP-20 Stepper Motor Driver ROHSGcoreMotor Driver ICsUSBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)CF35242D0RE-NH
SMD,P=0.5mm,卧贴FFC, FPC (Flat Flexible) Connector AssembliesCvilux
README
README.mdESP_bot
A single-circuit board robot
Parts
51| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C5, C6, C7, C8, C9, C13, C14, C16, C17, C18 |
| 6 | 10u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C10, C15, C19, C20, C21 |
| 5 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4, R5, R6, R7, R8 |
| 2 | 10p | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2 |
| 2 | 22u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C11, C12 |
| 2 | 2n2 | Inductor_SMD:L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L1, L3 |
| 2 | 5K11 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2 |
| 2 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1, D2 |
| 2 | Motor_DC | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | M1, M2 |
| 2 | SW_Push | Button_Switch_SMD:SW_Push_1P1T_NO_E-Switch_TL3301NxxxxxG | SW1, SW2 |
| 1 | 22R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 1 | 3u9 | Inductor_SMD:L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L2 |
| 1 | 40MHz | Library:XTAL_ECS-400-10-37B2-CKM-TR | Y1 |
| 1 | AP63203WU | Package_TO_SOT_SMD:TSOT-23-6 | U1 |
| 1 | BY25Q80ESTIG(T) | Package_SO:JEITA_SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | CF35242D0RE-NH | CF35:CONN24X1_CF35242D0RE-NH_CVI | J2 |
| 1 | D_TVS | Diode_SMD:D_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D3 |
| 1 | ESP32-S3 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP4x4mm_ThermalVias | U2 |
| 1 | L293DD | L293DD:SOIC127P1032X265-20N | U6 |
| 1 | Motor_Servo | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | M3 |
| 1 | TPS77012PDBV | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U4 |
| 1 | TPS77028PDBV | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U7 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6_Handsoldering | U5 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J1 |
| 1 | ~ | Library:PCB_Wifi_Antenna | A1 |
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Questions
How big is the Robo PCB?
It measures 150 × 120 mm and has 4 copper layers, 1.61 mm thick.
What parts does the Robo use?
51 parts, built around the ESP32-S3, AP63203WU, BY25Q80ESTIG(T) and L293DD. 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 Robo KiCad files?
From the mikked2101/ESP_bot repository on GitHub, at the commit this page was made from: the board is esp_bot_pcbs/Robo.kicad_pcb and its schematic esp_bot_pcbs/Robo.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Robo design in my own project?
Its repository states no licence, so its author keeps all rights: ask mikked2101 before reusing the design.