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Waveshare TSL25911 Light Sensor
1.790 Ft
Taxes included.
Pickup currently not available
High-dynamic-range digital lux sensor (TSL2591; sometimes listed as “TSL25911”). Dual channels (full-spectrum + IR) for accurate ambient light from deep shadow to daylight. I²C, tiny, low-power—ideal for weather stations, displays, and auto-brightness.
Highlights
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Huge dynamic range (~600M:1), ~0.00018–88k lux usable span
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Dual channels: Full-spectrum (CH0) + IR (CH1) → visible via subtraction
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Configurable gain & integration time for low-light or sunlight
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I²C @ 0x29, INT threshold interrupt pin
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Waveshare breakout: 3.3–5 V supply friendly (onboard reg/level shifting)
Specs
| Property | Value |
|---|---|
| Sensor | TSL2591 (ALS) |
| Interface | I²C (addr 0x29, fixed) |
| Supply (board) | 3.3–5.0 V |
| Logic level | 3.3 V (5 V tolerant on board) |
| Channels | CH0 = Full spectrum, CH1 = IR |
| ADC / Readout | 16-bit per channel |
| Gain options | 1× / 25× / 428× (typ.) |
| Integration times | 100–600 ms (selectable steps) |
| Features | INT pin for upper/lower lux thresholds |
| Use cases | Weather nodes, room lighting, display dimming, plant lighting |
Pinout
| Pin | Function |
|---|---|
| VCC | 3.3–5 V in |
| GND | Ground |
| SDA | I²C data |
| SCL | I²C clock |
| INT | Interrupt output (active on threshold) |
What’s in the Pack
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1× Waveshare TSL2591 Light Sensor breakout
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1× 1×5 pin header