# ESP32 Sensor Camera System ## Description ESP32-based sensor camera system with HC-SR04, NEO-6M GPS, ESP32-CAM, optional FT232RL programming interface, 5V input, and regulated 3.3V logic rail. ## Project Details - **Owner:** ajinkyasingh - **Created:** 4/21/2026 - **Last Updated:** 4/21/2026 - **Visibility:** Public - **Power Requirements:** 5V USB-C input with 3.3V regulated logic rail; HC-SR04 and ESP32-CAM use 5V, ESP32 and GPS use 3.3V; ultrasonic echo is level-shifted with 1k/2k divider. - **Implementation Details:** Main ESP32 uses GPIO14 for HC-SR04 trigger, GPIO13 for divided echo, GPIO16/17 for GPS UART, GPIO4 to trigger ESP32-CAM, and UART0 shared with optional FT232RL and ESP32-CAM serial link. ## Key Components ### D1 — [SMBJ5.0A](https://www.flux.ai/adrian95/smbj5p0a~lvt.md) - License: https://creativecommons.org/licenses/by/4.0/ - Package: SMB - Manufacturer Part Number: SMBJ5.0A - Role Details: Clamp transient surges on 5V USB-C VBUS input - Datasheet URL: https://www.littelfuse.com/~/media/electronics/datasheets/tvs_diodes/littelfuse_tvs_diode_smbj_datasheet.pdf.pdf - Part Type: Diode - Role: TVS Protection - Manufacturer Name: Littelfuse Inc. **Pins:** - A [pin 2] - K [pin 1] ### J1 — [Type-C-2.0-6Pin](https://www.flux.ai/jharwinbarrozo/type-c-20-6pin~wh.md) - Manufacturer Part Number: Type-C-2.0-6Pin - Role: Power Input Connector - Datasheet URL: https://datasheet.lcsc.com/lcsc/2204071830_CIKI-Type-C-2-0-6Pin_C2987385.pdf - Part Type: Connector - Package: USB-C Power Receptacle - Role Details: USB-C sink-only power input providing 5V VBUS and CC pins - Manufacturer Name: CIKI **Pins:** - CC1 - CC2 - GND - GND__1 - SHIELD - SHIELD__1 - SHIELD__2 - SHIELD__3 - V-BUS - V-BUS__1 ### SW1 — [TS-1088-AR02016](https://www.flux.ai/lcsc/ts-1088-ar02016~e3n1.md) - Manufacturer Part Number: TS-1088-AR02016 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302330_XUNPU-TS-1088-AR02016_C720477.pdf - Role Details: Momentary pushbutton for ESP32 boot or reset control - Manufacturer Name: XUNPU(讯普) - LCSC Part Number: C720477 - Package: SMD Tactile Switch - Package or Case Code: SW-SMD_L3.9-W3.0-P4.45 - Role: Pushbutton - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/Tactile-Switches_XUNPU-TS-1088-AR02016_C720477.html - Part Type: Tactile Switches **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW2 — [TS-1088-AR02016](https://www.flux.ai/lcsc/ts-1088-ar02016~e3n1.md) - Manufacturer Part Number: TS-1088-AR02016 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2409302330_XUNPU-TS-1088-AR02016_C720477.pdf - Manufacturer Name: XUNPU(讯普) - LCSC Part Number: C720477 - Role Details: Momentary pushbutton for ESP32 boot or reset control - Role: Pushbutton - Package: SMD Tactile Switch - Package or Case Code: SW-SMD_L3.9-W3.0-P4.45 - JLCPCB Part Class: Extended Part - Product Info Url: https://lcsc.com/product-detail/Tactile-Switches_XUNPU-TS-1088-AR02016_C720477.html - Part Type: Tactile Switches **Pins:** - 1 [pin 1] - 2 [pin 2] ### U1 — [ESP32-WROOM-32](https://www.flux.ai/vasy_skral/esp32-wroom-32~mxw.md) - Role Details: ESP32 main controller handling HC-SR04, GPS UART, and ESP32-CAM trigger/UART link - Part Type: Integrated Circuit - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32_datasheet_en.pdf - Manufacturer Name: Espressif Systems - Role: Main Controller - Manufacturer Part Number: ESP32-WROOM-32 - Package: Module **Pins:** - EN [pin 3] - GND [pin 38] - GND [pin 39] - GND [pin 15] - GND [pin 1] - IO0 [pin 25] - IO12 [pin 14] - IO13 [pin 16] - IO14 [pin 13] - IO15 [pin 23] - IO16 [pin 27] - IO17 [pin 28] - IO18 [pin 30] - IO19 [pin 31] - IO2 [pin 24] - IO21 [pin 33] - IO22 [pin 36] - IO23 [pin 37] - IO25 [pin 10] - IO26 [pin 11] - IO27 [pin 12] - IO32 [pin 8] - IO33 [pin 9] - IO34 [pin 6] - IO35 [pin 7] - IO4 [pin 26] - IO5 [pin 29] - NC [pin 32] - RXD0/IO3 [pin 34] - SCK/CLK [pin 20] - SCS/CMD [pin 19] - SDI/SD1 [pin 22] - SDO/SD0 [pin 21] - SENSOR_VN [pin 5] - SENSOR_VP [pin 4] - SHD/SD2 [pin 17] - SWP/SD3 [pin 18] - TXD0/IO1 [pin 35] - VDD [pin 2] ### U2 — [GY-neo6mv2_mod](https://www.flux.ai/shaw/gy-neo6mv2mod~23.md) - Role: GPS Module - Role Details: NEO-6M GPS UART module providing position data to the main ESP32 - Package: Module **Pins:** - GND [pin 4] - RX [pin 2] - TX [pin 3] - VCC [pin 1] ### U3 — [ESP32-CAM](https://www.flux.ai/lcsc/esp32-cam~krvb.md) - LCSC Part Number: C277946 - Role Details: ESP32-CAM module powered from 5V with UART link and trigger input from the main ESP32 - Package or Case Code: COMM-TH_16P-L40.0-W27.0-P2.54_ESP32-CAM - Package: Module - JLCPCB Part Class: Extended Part - Role: Camera Module - Manufacturer Name: Ai-Thinker(安信可) - Manufacturer Part Number: ESP32-CAM - Part Type: WiFi Modules **Pins:** - 3V3 [pin 9] - 5V [pin 8] - GND [pin 16] - GND [pin 7] - GND [pin 12] - IO0 [pin 11] - IO12 [pin 6] - IO13 [pin 5] - IO14 [pin 3] - IO15 [pin 4] - IO16 [pin 10] - IO2 [pin 2] - IO4 [pin 1] - U0R [pin 14] - U0T [pin 15] - VCC [pin 13] ### U4 — [FT232RL](https://www.flux.ai/kicad-part-library/ft232rl~g3.md) - Datasheet URL: https://www.ftdichip.com/Support/Documents/DataSheets/ICs/DS_FT232R.pdf - Manufacturer Part Number: FT232RL - Package or Case Code: SSOP-28_5.3x10.2mm_P0.65mm - Package: SSOP-28 - Role Details: Optional FT232RL interface for programming or console access to the main ESP32 UART0 - Role: USB-UART Bridge **Pins:** - ~{RESET} [pin 19] - 3V3OUT [pin 17] - AGND [pin 25] - CBUS0 [pin 23] - CBUS1 [pin 22] - CBUS2 [pin 13] - CBUS3 [pin 14] - CBUS4 [pin 12] - CTS [pin 11] - DCD [pin 10] - DCR [pin 9] - DTR [pin 2] - GND [pin 7] - GND [pin 18] - GND [pin 21] - OSCI [pin 27] - OSCO [pin 28] - RI [pin 6] - RTS [pin 3] - RXD [pin 5] - TEST [pin 26] - TXD [pin 1] - USBD- [pin 16] - USBD+ [pin 15] - VCC [pin 20] - VCCIO [pin 4] ### U5 — [RT9013-33GB](https://www.flux.ai/jecstronic/rt9013-33gb~xl8.md) - Part Type: Integrated Circuit - Role: 3.3V Regulator - Datasheet URL: https://datasheet.lcsc.com/lcsc/1809081207_Richtek-Tech-RT9013-33GB_C47773.pdf - Package: SOT-23-5 - Manufacturer Name: Richtek Tech - Manufacturer Part Number: RT9013-33GB - Role Details: Converts 5V input rail to regulated 3.3V logic rail for ESP32 and GPS **Pins:** - EN - GND - IN - NC - OUT ### US1 — [HC-SR04](https://www.flux.ai/vasy_skral/hc-sr04~afv.md) - Manufacturer Part Number: HC-SR04 - License: https://creativecommons.org/licenses/by/4.0/ - Role: Ultrasonic Sensor - Role Details: HC-SR04 distance sensor powered from 5V, trigger from ESP32, echo divided to 3.3V-safe input - Symbol Style: parametric-v1 - Part Type: Sensor - Datasheet URL: https://cdn.sparkfun.com/datasheets/Sensors/Proximity/HCSR04.pdf - Package: Module **Pins:** - ECHO [pin 3] - GND [pin 4] - TRIG [pin 2] - VCC [pin 1] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/ajinkyasingh/esp32-sensor-camera-system~5s](https://www.flux.ai/ajinkyasingh/esp32-sensor-camera-system~5s).* --- *Generated from [https://www.flux.ai/ajinkyasingh/esp32-sensor-camera-system~5s](https://www.flux.ai/ajinkyasingh/esp32-sensor-camera-system~5s)*