Arduino Exposure Meter Mk. 2

Here's my latest project, an updated Arduino-powered exposure meter, this time using a TSL2591 lux sensor, which has a MUCH higher dynamic range (0.01-120,000lx).

 

It's about a third of the price of the equivalent Sekonic L308s, and has five (5!!!) additional stops of low light range (goes down to -5EV, haven't had sunny enough weather to test the higher range).

 

Brainpower: Adafruit Pro Trinket 3V

Display: Adafruit 128x32 I2C OLED

Light sensor: TSL2591

Battery: 1s1p 500mAh lithium polymer

 

Light measurement range: 0.01 - 135000 lux (EV -5.0 - EV18)

Sv Range: 6 - 51200, in full stops

Tv Range: 1/8000s - 999 minutes, in full stops

Av Range: f/1.0 - f/90 in third stops

 

Battery charging, programming done through Micro USB

 

Done