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Automatic temp controller
- 5. POWER SUPPLY 7805 REGULATOR DS1621 TEMPRATURE SENSOR MCU AT89C51 LCD DISPLAY (16*1)
- 9. Instruction Description Protocol Read Temperature Read last converted temperature value from temperature register. Aah Read counter Reads value of count remaining from counter A8h Read Slope Read value of the slope accumulator A9h Start Convert T Initiates temperature conversion EEh Stop Convert T Halts temperature conversion 22h Access TH Read or write high temperature limit value into TH register. A1h Access TL Read or write low temperature limit value into TL register A2h Access Configuration Reads or write configuration data to configuration register Ach
- 11. Features • Output Current up to 1A • Output Voltages of 5, 6, 8, 9, 10, 12, 15, 18, 24V • Thermal Overload Protection • Short Circuit Protection • Output Transistor Safe Operating Area Protection
- 14. Start Initialize Lcd & show welcome Msg Th __ Tl___ Enter for Cont. Is Enter Pressed? Is Clr Pressed? Th __ Is Th < 125d Tl __ Is Tl < Th Show error & again get Th value Show error & again get Tl value Go to #2 #2 Set Ds1621 with Th , Tl & other settings Temperature ____ No Yes No Yes Yes No No Yes