OV3660 camera module brings genuine 3-megapixel clarity to your ESP32 vision projects without forcing you to rewrite your code. It plugs into the same 24-pin camera connector used by OV2640 boards, and the official ESP32 camera driver detects it automatically, so your existing sketches keep running while your images get sharper and more detailed. It is the easiest image upgrade for makers across India.
Technical Specifications
Every value for this OV3660 camera module has been checked against the official OmniVision sensor datasheet.
| Parameter | Value |
|---|---|
| Image Sensor | OmniVision OV3660 colour CMOS with OmniBSI backside illumination |
| Resolution | 3 MP (2048 × 1536) |
| Optical Format | 1/5 inch |
| Pixel Size | 1.4 µm × 1.4 µm |
| Max Frame Rate | 15 fps @ 2048×1536, 20 fps @ 1080p, 45 fps @ 720p, 60 fps @ VGA |
| Output Formats | JPEG (compressed), 8/10-bit RAW RGB, RGB565/555/444, YCbCr422, CCIR656 |
| Interface | Parallel DVP data bus + SCCB (I2C-style) control |
| Connector | 24-pin FPC, same footprint as OV2640 modules |
| Shutter Type | Rolling shutter |
| Sensitivity | 670 mV/lux-sec |
| S/N Ratio / Dynamic Range | 34 dB / 70 dB |
| Sensor Supply | 2.8 V analog, 1.8 V or 2.8 V I/O, 1.5 V core (internal regulator) |
| Active Current | 98 mA typical (sensor) |
| Focal Length | 3.37 mm |
| Operating Temperature | −20 °C to 70 °C (junction); stable image 0 °C to 50 °C |
| Size / Weight | 20 × 12 mm / approx. 2 g |
What Makes It Stand Out
The OV3660 camera module uses OmniBSI backside-illuminated pixels that catch more light, giving cleaner images indoors and at dusk. An on-chip processor handles auto exposure, white balance, flicker detection and noise reduction, all documented in the official OV3660 datasheet.
Compatibility is the real win. Espressif’s esp32-camera driver on GitHub supports the OV2640 and OV3660 side by side and loads the right settings automatically. The CameraWebServer example runs as-is, just with higher frame sizes.
Hardware JPEG compression on the OV3660 camera module keeps frames small, so Wi-Fi streaming stays smooth.
Why Makers Choose This
At 2048 × 1536, the OV3660 camera module captures over 60% more pixels than a 2 MP OV2640. That extra detail matters for QR code reading, face recognition and cloud AI image analysis.
It is also beginner-friendly. Follow this ESP32-CAM video streaming tutorial, swap in the new sensor and you are live in minutes. Grab it at the best price in India, only at techiesms.
Important Links
🔗 OV3660 Datasheet (PDF) — full sensor specs and reference schematic
🔗 OmniVision OV3660 Official Page — manufacturer product announcement
🔗 Techiesms YouTube: AI Vision Project using ESP32-CAM — build an AI camera step by step
🔗 esp32-camera Driver (GitHub) — official Espressif camera library
🔗 ESP32-CAM Streaming Tutorial — beginner Arduino IDE guide
Best Used For
Use the OV3660 camera module to build a Wi-Fi CCTV camera that streams to Home Assistant, or a smart doorbell that sends a visitor’s photo to Telegram. Pair it with a cloud AI model for a vision camera that describes what it sees. The extra resolution also suits face-recognition attendance systems and time-lapse plant growth loggers.
Frequently Asked Questions
Q: Will my OV2640 code work with this sensor?
Yes. The OV3660 camera module works with sketches built on the esp32-camera driver, which auto-detects the sensor. Code that writes raw OV2640 registers directly will need changes.
Q: Which boards can I use it with?
Any ESP32, ESP32-S2 or ESP32-S3 board with a 24-pin DVP camera connector, such as the ESP32-CAM. Boards like the Arduino Uno lack a camera interface and memory.
Q: Do I need PSRAM?
Yes, for anything above CIF resolution. Full 3 MP capture on the OV3660 camera module needs a board with PSRAM.
Q: Can it record video?
It streams MJPEG video up to 720p HD. Real frame rate depends on your Wi-Fi and resolution.
Q: How does it perform in low light?
The OV3660 camera module beats older 2 MP sensors in dim light thanks to backside-illuminated pixels. Add an LED flash for very dark scenes.
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