BH1749NUC-E2

BH1749NUC-E2 is ROHM’s evaluation kit for the BH1749NUC four‑channel ambient light/color sensor. The BH1749NUC itself is a compact I2C sensor that measures Red, Green, Blue and Clear light with an integrated ADC, and offers programmable integration time and gain for flexible sensing in low power conditions.
Key points:
- Outputs four digital channels (RGB+C) over I2C; suitable for color sensing, ambient light detection, and display/color calibration.
- Evaluation kit typically includes a sensor module on a breakout board, quick‑start guide, cables, and example firmware/libraries to read data and configure the sensor.
Use cases:
- Display calibration, color matching, ambient lighting control, and color-based sensing in consumer devices.
For exact specs, register map, I2C address, and data conversion methods, consult the BH1749NUC datasheet and the kit user guide.

Equivalent products (RGB/color light sensors with I2C):
- TCS34725 (AMS/TAOS): RGB color sensor with clear channel.
- APDS-9960 (Broadcom): RGB color + proximity sensor.
- AS7341/AS7342 (AMS): multi-channel spectral/color sensor.
- ROHM color/light sensor family (e.g., BH1745N/BH1745U) as direct ROHM alternatives.
Note: these offer similar RGB/color sensing with digital outputs; exact channel count and performance vary.

BH1749NUC-E2 features (evaluation kit for BH1749NUC):
- 4-channel RGBC color sensor (Red, Green, Blue, Clear) with IR-cut/filter for accurate color sensing
- I2C digital output (SCL/SDA); supports standard/fast modes
- Programmable integration time and gain for wide dynamic range
- On-chip ADC with high-resolution results per channel; data registers provide RGBC values
- Interrupt/ALERT output for threshold events
- Low-power modes: active, standby, and shutdown
- Wide supply range (typically 2.7–3.6 V) with low current consumption
- Compact, RoHS-compliant package suitable for mobile/compact devices
- Evaluation board includes USB interface, quick-start GUI, sample code, and reference firmware to demonstrate color sensing and calibration
Note: Specifications may vary slightly by revision; refer to the BH1749NUC data sheet and the E2 kit user guide for exact details.

Pin count: 16 pins (BH1749NUC-E2 in a 16-pin package).
Function: I2C-based ambient light/color sensor with four photodiode channels (R, G, B, Clear); reports color/brightness data via I2C and includes typical control pins (VDD, GND, SCL, SDA, address/select, RESET/INT, etc.).

- Manufacturer: ROHM Semiconductor (ROHM Co., Ltd.)
- What kind of company: A Japanese multinational semiconductor company that designs and manufactures integrated circuits, sensors, power devices, LEDs, and other electronic components for automotive, consumer, and industrial markets.

BH1749NUC-E2 is ROHM’s RGB color sensor evaluation board. Common applications include:
- Color detection/recognition in smartphones, cameras, robots
- Display and lighting calibration; automatic white balance
- Ambient light sensing for power management in mobile/wearable devices
- Color matching/calibration in printers, scanners, imaging systems
- Color-based object detection in automation, smart home, and industrial sensing
- Prototyping and development of color-sensing applications

QFN-16 package (3.0 × 3.0 mm, 0.4 mm pitch) for BH1749NUC-E2.