coffee-meter

/* Coffee darkness meter - by V.Chan - Toronto, Canada, Oct 2021

• for testing the darkness of whole bean and ground coffee
• 1. uses an Adafruit TSL2561 breakout board (others can be
• substituded
• 2. an SSD1306 OLED for a display
• 3. arduino nano
• Note: I only use the IR sensor, the LUX sensor had a narrow range
• although I left the code commented out
• To enter calibration mode: press button while powering up.
• you need a cinnamon roast (beginning of first crack) this
• taken as eegtron = 70, and an Italian roast (just end of
• 2nd crack) eegtron = 30.
• To make measurements, just press button to start 4 avg readings
• Eggtron measurements are based off calibration above

*/

Files to install in your Arduino library:

For the TSL2561 sensor Adafruit_Sensor.h Adafruit_TSL2561_U.h

For the OLED display SSD1306Ascii.h SSD1306AsciiWire.h