501384 GA1A12S202 Log-scale Analog Light Sensor

GA1A12S202 Log-scale Analog Light Sensor

Sensore di luce basato sul sensore analogico GA1A12S202, molto simile ad una fotocellula ma piu' evoluto.
Categorie
  • 10 pcs € 3,66
  • 50 pcs € 3,36
Prezzi IVA inclusa
€ 5,01 Prezzo
€ 4,11 + VAT

Qty
 

Dettagli

Upgrade a project that uses a photocell with the GA1A12S202 analog light sensor. Like a CdS photo-cell, the sensor does not require a microcontroller, the analog voltage output increases with the amount of light shining on the sensor face. This sensor has a lot of improvements that make it better for nearly any project. 

The biggest improvement over plain photocells is a true log-lin relationship with light levels. Most light sensors have a linear relationship with light levels, which means that they're not very sensitive to changes in darkened areas and 'max' out very easily when there's a lot of light. Sometimes you can tweak a resistor to make them better in dark or bright light but its hard to get good performance at both ends. This sensor is logarithmic over a large dynamic range of 3 to 55,000 Lux, so it has a lot of sensitivity at low light levels but is also nearly impossible to "max out" so you can use it indoors or outdoors without changing code or calibration. Since the sensor is fabricated on a chip, there are also fewer manufacturing variations, so you won't have to calibrate the sensor from one board to another. 

Using the sensor is easy as pie: connect the Vin to 2.3-6VDC, Gnd to ground and measure the analog output on OUT. It will range up to 3V (at extremely bright outdoor sunlight). On an Arduino, just use analogRead() with the OUT pin connected to an analog pin. For more information including graphs, power consumption, etc check out the datasheet in the Tech Details tab. On this breakout we placed a 68KΩ resistor from OUT to ground to turn the current into a voltage.

GA1A1S202WP Datasheet

  • Power with 2.3-6V
  • Onboard 68K load resistor for max 3V analog output
  • 0.2 grams
  • 0.4" x 0.5" x 0.06" (10mm x 13mm x 1.5mm)
  • 0.1" (2.5mm) mounting hole

Tutorial: Adafruit GA1A12S202 Log-scale Analog Light Sensor
True Logarithmic Response from 3 to 55,000 Lux!

Specifiche

Part. No. : 1384

Tags prodotto

Usa gli spazi per tag separati. Usa virgolette singole (') per frasi.

Questions on GA1A12S202 Log-scale Analog Light Sensor

No questions asked yet

Fai una domanda (Registrati oppure Esegui il Login ).
Fai una domanda (Registrati oppure Esegui il Login ).
  1. VCNL4000 Infrared Emitter Breakout

    710901 VCNL4000 Infrared Emitter Breakout

    Il VCNL4000 ha al suo interno un diodo IR ed un ricevitore e comunica attraverso un'interfaccia I2C. Viene utilizzato come sefalse
    Tasse escluse:
    € 7,70
    IVA inclusa:
    € 9,39
      Confronta
  2. TSL2561 digital luminosity / lux / light sensor

    500439 TSL2561 digital luminosity / lux / light sensor

    Sensore di luce basato sul sensore analogico TSL2561, molto simile ad una fotocellula ma piu' evoluto.
    Tasse escluse:
    € 5,55
    IVA inclusa:
    € 6,77
      Confronta
  3. 1143 - Light Sensor 70,000 lux

    191143 1143 - Light Sensor 70,000 lux

    The 1143 Light sensor can measure ambient light up to 70 kilolux (roughly equivalent to the brightness of direct sunlight).
    Tasse escluse:
    € 7,66
    IVA inclusa:
    € 9,35
      Confronta
  4. Adafruit ALS-PT19 Analog Light Sensor Breakout

    808531 Adafruit ALS-PT19 Analog Light Sensor Breakout

    The ALS PT19 analog light sensor is a great way to upgrade a project that uses a photocell and needs RoHS compliance.
    Tasse escluse:
    € 2,57
    IVA inclusa:
    € 3,14
      Confronta

Se hai trovato questo prodotto ad un prezzo migliore, inviaci una segnalazione, faremo tutto il possibile per accontentarti.

Price Match



* Campi richiesti

Il nostro Reparto Vendite rispondera' entro 24 ore via e-mail.

Grazie per la tua fiducia in Robot Italy!