COLD WATERBATH BERBASIS MIKROKONTROLLER ATMEGA8

Cold WaterBath is a laboratoryinstrument that serves to maintain a stable temperatureinaccordancewiththedesiredsamplethroughthemediumofwater.Toobtainthe desiredtemperaturestability.Factorsthataffecttheserumincubation processisakindof temperatureandtimeofincubation.Togetgoodresultsincubation,thetemperaturemustbe keptconstantthroughoutthesampleinatesttube.In thisthesistheauthormakesthetool"ColdWaterbathatmega8microcontroller based"with2-B°Ctemperaturesettingand24hours.Inmakingthistooltheauthorsdesigned usingmicrocontrollerICAtmega-8asthemaincontroller,whichiscontrolledbyatimerand temperatureLCD display.Fromtheanalysisresultsobtainederrorvalueobtainedfrom themeasurementtimeis 0.99%for24hoursandtheerrorvaluederivedfromtemperaturemeasurementswas0.06%for2-B°C. Keywords:time,temperature