MICROCONTROLLER BASED TEMPERATURE DATA LOGGER WITH SD CARD STORAGE

Temperature is basically the measurement of how hot §or cold something is, and it is one of the §fundamental entities in any kind of process control. §Temperature is also a measure of the average kinetic §energy of particles in a system. Adding heat to a §system increases the kinetic energy of its particles §and hence an increase in the temperature of the §system. Temperature is easily measured using a §thermometer. Nowadays, thermometers come in all §shapes and sizes. In computer based automated §process control applications where it may be §required to control the temperature of a plant, it §is necessary to interface the thermometer to the §computer. This is usually done either by using §analog temperature sensor devices such as §thermistors, thermocouples, RTD devices etc. and §then converting the outputs into digital format §using A/D converters, or digital sensors, such as §semiconductor sensor chips are used with direct §interface to the computer. This book is about the §design of a microcontroller based multichannel §temperature logging device with SD card storage.