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Small rectangular green circuit board with a silver sensor chip and gold pin headers

LORDWORLD

LORDWORLD TSL25911 Development Board 188uLux 600M:1 I2C

SKU CH-2HP0-M4BHB

Measures infrared and visible light with 188uLux sensitivity and 600M:1 dynamic range, includes I2C output and 3.3V/5V logic compatibility

  • Measures infrared plus visible light with wider range than TSL2561
  • High sensitivity down to 188 uLux captures very low light
  • Wide dynamic range of 600M:1 handles bright conditions
  • Interrupt output with programmable thresholds enables event-driven use
  • Onboard voltage translator supports 3.3V and 5V systems

Development Board with TSL25911FN Sensor

This LORDWORLD development board integrates the TSL25911FN sensor to measure both infrared and visible light. It targets makers and engineers building IoT edge devices that require accurate ambient-light data. The board communicates over I2C and includes an onboard voltage translator for 3.3V and 5V logic compatibility. Its high sensitivity reaches 188uLux for low-light detection.

Upgrade from TSL2561-Based Modules

The TSL25911FN provides a wider spectral range than the TSL2561, capturing infrared plus visible light for more complete measurements. An embedded ADC outputs light intensity directly to the I2C interface, reducing noise jamming. The dynamic range extends to 600M:1, and maximum measurable intensity reaches 88000Lux. This jump is worthwhile when projects need higher sensitivity and better infrared rejection than older modules deliver.

Practical Limits of I2C Ambient Sensing

I2C bus length and pull-up resistance constrain reliable communication distance in noisy environments. The interrupt output with programmable thresholds helps reduce polling overhead but cannot eliminate bus latency. The onboard translator handles 3.3V and 5V logic, yet the sensor’s absolute maximum ratings still bound the usable voltage range. Strong infrared noise is suppressed by the embedded photodiode design, though extreme optical overload may saturate the ADC.

Points forts

  • Measures infrared plus visible light with wider range than TSL2561
  • High sensitivity down to 188 uLux captures very low light
  • Wide dynamic range of 600M:1 handles bright conditions
  • Interrupt output with programmable thresholds enables event-driven use
  • Onboard voltage translator supports 3.3V and 5V systems

Caractéristiques

BrandLORDWORLD

Questions sur cet article

What voltage levels does the board's I2C interface accept?

The onboard voltage translator makes the I2C interface compatible with both 3.3V and 5V logic levels, so it can connect directly to either supply without external level shifting.

Which pins must be soldered to use the interrupt feature?

The interrupt output is brought out to a header pin labelled INT; solder a wire or header to that pin and configure the upper and lower thresholds in the TSL25911FN registers to enable the interrupt.

How often should the sensor's optical window be cleaned?

Clean the optical window whenever dust or fingerprints are visible, using a soft lint-free cloth and isopropyl alcohol, because contamination reduces the 188uLux sensitivity and 600M:1 dynamic range.

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