Linking Multiple Sensors
I need to link 9 actual sensors to one board, on top of that I also need to figure a why to average those readings to a Luminosity reading. Example. Sensor 1 10lumens Sensor 2 10lumens Sensor 3 10lumens Sensor 4 10lumens Sensor 5 13lumens Sensor 6 19lumens Sensor 7 18lumens Sensor 8 15lumens Sensor 9 11lumens Average of 12.88 I'd also like to be able to us specific sensors say sensor 5 for just a center measurement. Would it be possible to get a parts list if all of this is remotely possible. Thank you.
Can you String these?
Can you use multiple sensors on the same Pi like you can with temperature sensors?, to take readings from different spots for example.
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The TSL2561 luminosity sensor is an advanced digital light sensor, ideal for use in a wide range of light situations. The TSL2561 sensor allows for exact lux calculations and can be configured for different gain/timing ranges to detect light ranges from up to 0.1 - 40,000+ Lux on the fly. The sensor contains both infrared and full spectrum diodes meaning that you can separately measure infrared, full-spectrum or human-visible light. Most sensors can only detect one or the other, which does not accurately represent what human eyes see (since we cannot perceive the IR light that is detected by most photo diodes)
The sensor has a digital (i2c) interface. You can select one of three addresses so you can have up to three sensors on one board - each with a different i2c address. The built in ADC means you can use this with any microcontroller, even if it doesn't have analog inputs. The current draw is extremely low, so its great for low power data-logging systems. about 0.5mA when actively sensing, and less than 15 uA when in powerdown mode.
The TSL2561 Luminosity Sensor Features:
Approximates Human eye Response
Interface: I2C - Compatible with both the Raspberry Pi and Arduino
Separately Measure Infrared, Full-Spectrum or Human-Visible Light.
Precisely Measures Illuminance in Diverse Lighting Conditions
Extremely Low current draw (0.5mA when active, 15uA when idle)
Three select adresses - have up to three sensors on one board with a different i2c address.
Temperature range: -30 to 80 *C
Dynamic range (Lux): 0.1 to 40,000 Lux
Voltage range: 2.7-3.6V
- Microcontroller compatible with built in ADC (even without analog inputs)
Assembly Guide and Tutorial