2 layers80 × 76.2 mm
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alegoldstein/Webcam
Custom webcam built around an Atmel MCU for image collection and processing and an ESP32 to host a web server
11 parts
2 layers50 × 50 mm
EE326 Webcam
alegoldstein/WebcamCustom webcam built around an Atmel MCU for image collection and processing and an ESP32 to host a web server
- Size
- 50 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 43
- Nets
- 92
- Pads
- 231
- Tracks, vias
- 604, 144
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 10 Sep 2026
- Updated
- 14 Sep 2026
Overview
EE326 Webcam is an open-source printed circuit board by alegoldstein, from the alegoldstein/Webcam repository on GitHub. It is a 2-layer board of 50 × 50 mm with 43 parts on 92 nets, routed with 604 tracks and 144 vias.
It is built around the ATSAM4S8BA-AU, ESP32-WROOM-32E-N4 and LDL1117S30R, with the ABM7-12.000MHZ-D2Y-T among its other parts. Its parts include 16 capacitors, 10 resistors, 3 ICs, 3 connectors and 1 inductor. It belongs with the ESP32 and SAM D and SAM boards of this library.
Main components
4
ATSAM4S8BA-AU
LQFP-64(10x10)-40℃~+85℃ 1.62V~3.6V 120MHz 128KB 12bit 12bit 32 Bit 47 512KB ARM Cortex-M4 Built-in FLASH LQFP-64(10x10) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
ESP32-WROOM-32E-N4
SMD,25.5x18mm-40℃~+85℃ -98dBm 112mA 2.4GHz 20dBm 239mA 3V~3.6V Bluetooth4.2 ESP32-D0WD-V3、ESP32-D0WDR2-V3 On-board PCB Antenna UART、SDIO、SPI、I2C、GPIO SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
LDL1117S30R
SOT-223-4-40℃~+125℃@(Ta) 1 1.2A 18V 3V 500uA 600mV@(1.2A) 60uVrms 87dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown、Input under-voltage protection Positive SOT-223-4 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSSTMicroelectronicsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
ABM7-12.000MHZ-D2Y-T
SMD6035-2P-40℃~+85℃ 12MHz 18pF 60Ω Crystal Oscillator ±20ppm ±30ppm SMD6035-2P Crystals ROHSAbraconCrystals
README
README.mdWebcam
Objective: Create a webcam from scratch, including PCB, firmware, and enclosure
Steps Taken:
- Used KiCAD to design a compact 50 mm × 50 mm custom PCB integrating a microcontroller, ESP32 module, camera interface, input buttons, status LEDs, power regulation circuitry, and passive components.
- Developed embedded firmware in Microchip Studio to enable controlled image capture and system-level communication.
- Implemented multiple communication protocols, including UART and SPI for MCU–ESP32 data exchange and debugging, and I²C for camera initialization.
- Designed a 3D printed enclosure providing access to buttons and power, visibility for indicator LEDs, and support for wall mounting.
Outcome: A functional webcam that streams images to the web when there is a connected client.
PCB Schematic
Routing of PCB
 Assembled PCB (hand soldered) |
 PCB inside of 3D printed box |
 Final product |
Live streaming of webcam to website
Parts
43| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C2, C9, C10, C11, C12, C13, C14, C15, C16, C17 |
| 4 | 330R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R5 |
| 4 | LED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | AP, D4, WEB, WLAN |
| 4 | SW_Push | EE326:pushbutton | IO0, MCU_RST, WIFI_PROV, WIFI_RST |
| 3 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8, R9, R10 |
| 3 | 1uF | Capacitor_SMD:C_0805_2012Metric | C5, C6, C7 |
| 2 | 18pF | Capacitor_SMD:C_0805_2012Metric | C3, C4 |
| 2 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6, R7 |
| 2 | Conn_02x03_Counter_Clockwise | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J3, J4 |
| 1 | 10uH | Inductor_SMD:L_0805_2012Metric | L1 |
| 1 | 1R0 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 2-1734592-4 | Ilya_cam:CAM_CONN | J2 |
| 1 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | ABM7-12.000MHZ-D2Y-T | EE326:crystal clock | Y1 |
| 1 | ATSAM4S8BA-AU | EE326:atsam4s8b | U1 |
| 1 | ESP32-WROOM-32E-N4 | EE326:ESP32WROOM32E_EXP | U2 |
| 1 | LDL1117S30R | EE326:voltage regulator | U3 |
| 1 | ~ | Ilya_cam:DCJACK_2MM_SMT | barreljack1 |
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Questions
How big is the EE326 Webcam PCB?
It measures 50 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the EE326 Webcam use?
43 parts, built around the ATSAM4S8BA-AU, ESP32-WROOM-32E-N4, LDL1117S30R and ABM7-12.000MHZ-D2Y-T. 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 EE326 Webcam KiCad files?
From the alegoldstein/Webcam repository on GitHub, at the commit this page was made from: the board is PCB/EE326 Webcam.kicad_pcb and its schematic PCB/EE326 Webcam.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the EE326 Webcam design in my own project?
Its repository states no licence, so its author keeps all rights: ask alegoldstein before reusing the design.