A simple and moderately accurate exposure meter for cyanotype and gum dichromate printing with intensity, effective energy and an alarm for completed exposures.
- UV intensity (mW/cm2)
- Effective energy or integrated intensity (mJ/cm2)
- Progress bar
- Easy to set and forget total exposure
- Black calibration
- Alarm for milestones and complete exposure
- Uses portable, easy to source, and inexpensive parts
- ML8511 UV Sensor
- Arduino UNO
- HP-AMO-LCDSH Hyperion LCD
- Piezo buzzer
- USB battery bank or similar power supply
- Four wire cable, small case and magnet for sensor
- avdweb_VirtualDelay.h https://github.com/avandalen/VirtualDelay
- EEPROM.h https://www.arduino.cc/en/Reference/EEPROM
- Portions of MT8511 Sensor Read Example by Nathan Seidle https://learn.sparkfun.com/tutorials/ml8511-uv-sensor-hookup-guide/all
- Portions of Arduino 5 Button LCD Display Menu by Joe (https://notabug.org/grugly/Arduino_5_Button_16x2_LCD_Menu)