This is a simple datalogger developed mainly to collect thermal data in laboratory use, interfacing with LM35 sensors; normal voltage acquisition up to 20V is possible.Input selection between 20V, 2V, 0.2V can be done via jumper setting. A 7segment display let you control temperature in progress, while saving on internal eeprom let you have a log of the test. Eeprom content can be downloaded via a serial connection, the channel is a 5V-level RS232 to be connected to a usb to serial converter based on FT232 chip. Internal eeprom is used, but it's possible to add a 24c256eeprom ( yet not software supported ) Power supply can be from USB or external 5V.
Some pushbutton permit simple selectng of input and mode explained briefly in .c file.
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