PortableBinReader

from Notes.ino

• Arduino 168/328 based DS18B20 portable reader for use with LCD Keypad shield
• created 2017 04 04
• by Matt Elias
• modified 2017 04 12
• Reads all detected DS18B20 or DS28EA00 OneWire sensors at boot up
• Stores the list of sensor data in an array
• data byte 0 - least significant temperature byte
• data byte 1 - most significant temperature byte
• data byte 2 - BIN ID number
• data byte 3 - SENSOR ID number
• Sorts the array of sensors by bin/sensor ID numbers
• Allows user to scroll through list via LCD Keypad shield's UP/DOWN buttons
• Changes displayed units with RIGHT button
• Buttons:
• UP: scrolls up in the list of sensors
• DOWN: scrolls down in the list of sensors
• RIGHT: toggles temperature units between C and F
• LEFT: does nothing
• SELECT: does nothing
• To-do:
• use left button to change displayed bin number (sideways scolling through bins)?
• add ability to reprogram sensors' bin ID?
• v03
• added code to detect Arduino's Vcc and scale Keypad shield analog button detected accordingly
• The Keypad shield operates at 5V
• SELECT button does not work on 3.3V systems
• as it cannot pull down enough on the analog input to register a change
• changed temp units display toggle to RIGHT button
• v02
• added code to change displayed temperature units with the Select button
• v01
• selectable precision in program
• reads sensors once at boot up
• uses up/down buttons to scroll through list of sensors