Elenco Snap Circuits SnapMicro ® I Standard - Manual (Page 65)

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Project 18, Introduction to Data Loggers.
Technically speaking, a data logger is any device that can be used to store data. This includes many
data acquisition devices such as plug-in boards or serial communication systems, which use a computer
as a real time data recording system. However, most instrument manufacturers consider a data logger a
stand alone device that can read various types of electrical signals and store the data in internal memory
for later download to a computer.
The advantage of data loggers is that they can operate independently of a computer, unlike many other
types of data acquisition devices. Data loggers are available in various shapes and sizes. The range
includes simple economical single channel fixed function loggers to more powerful programmable
devices capable of handling hundreds of inputs. The Snap Circuit below is a single channel fixed light
intensity logger. Build this circuit.
B
C
D
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2 3 4 5 6
A
G
1 7 8 9 10
To Computer
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1
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1
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1
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1
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