V1.8 (PCB V4.0 - V7.0) 1. P - Fixed bug with Light Timeout - "Can not set the value to 0" - Light on all times. 2. P - Fixed bug with Door Timeout - "Can not set the value to 0" - Disable "Door Open" warning beeps. V1.7 1. P - Added. when DoorTimeout = 0 then disable beep. 2. P - Added. checks for illegal timeout values for DoorTimeout (Min=0 Max= 99) LightTimeout (Min=0 Max= 10) V1.6 1. S - Added C4 and C5 decoupling to stabilise temperature input. 2. S - Added D7 and changed the supply for LCD backlit from +5V to +12V. This minimises the current drown through Voltage Regulator VR1 and stabilises the +5V supply. 3. P - Added DEMO functionality. V1.5 1. P - Altered formula to calculate temperature. 2. P - Added "Light Timeout" menu. (delay after Door closed) 3. P - Moved string messages in EEPROM to start after byte 8. 4. P - Added EEPROM variable for LightTimeout in byte 5. 5. P - Added Spinner to indicate Compressor is ON. 6. P - Fixed bug when temperature was below 0. V1.4 1. S - Altered LCD Backlit circuitry. 2. S - Altered Temperature sensor circuitry. V1.3 1. S - Fixed ICSP and removed programming (AUX) jumper 2. S - Moved LCD Data lines. V1.2 1. S - Added ISCP and programming jumper V1.1 1. S - Moved SW1-3, "Door" and "Compressor" to free up pins on MCU 2. S - Added Piezo speaker and AUX connector. V1.0 - Original Release Legend: S = Schematic C = Circuit (PCB) P = Programming