Circuit Analysis Lab (ENGR 262L)
Lab #6: Circuit Design Challenge
Preparation: Review what you learned in Circuits Lab so far.
Lab Partners: You may work together with a partner at one lab station.
Equipment & Components:
Meterman (LM 631) Light Meter or Extech 430 Digital Thermometer
Other equipment and components, as needed.
Procedure: To be determined by you.
Lab Reports: One report per group due by the end of the lab period. Include all parts of
your report as indicated below, in Lab Report Format.
Lab Report Format (for Lab #6):
2 pts Heading: Lab #, Title, Date
Author’s Full Name (printed), roles
Partner’s Full Name (printed), roles
2 pts Objectives: Design an automatic LED night-light (or temperature
indicator) that senses and turns on when dark (or cold), and
turns off when light (or warm) in the room (or cup of H2O).
1 pt Diagrams: document your design with a circuit schematic, clear and
well-labelled.
1 pt Equipment: specify any equipment and components; indicate model #
and unit # used
10 pts Results: record your observations, any calculations and test
measurements, such as the light intensity at which your
“night-light” turns ON/OFF. Answer these questions:
1) What steps did you go through to arrive at a solution?
2) What did you do in your circuit to set the intensity (or
temperature) at which the night-light (or temperature
indicator) turns ON/OFF, and how did you choose this
value?
4 pts Summary & Conclusions:
Summarize what you learned in one paragraph,
highlighting anything especially new to you and any
specific conclusions you arrived at as a result of this work.
Include any ideas for creative extensions you may have.
Put Signatures of Author & Partner at end of report