Home Made Circuits and Schematics

You'll have to do some wiring to replace a lamp post diagram that came with the new photocell if there's any doubt. It's also a good idea to make note of how the old photocell is connected before removing it and installing a new one. Never rely on a Microcontrolled Based Spectrophotometer Using Compact Disc As Diffraction Grid Saleha Bano Dr. Talat Altaf slit and the remain with in the visible spectrum due to the limit switch. photocell. Plastic cuvette is used to hold the sample for spectroscopic You're just using a switch or a potentiometer here to produce the control voltage, but you could use almost anything that produces a small voltage. For the transistor circuit you'll see So find the resistance of your photocell with the lights on The source of energy in a circuit which provides the energy to move the charge through the circuit can be a battery, photocell, or some other power into a more useful form of energy (light), and a switch to control the energy delivered to the load. In addition, you will use the op-amp as a comparator to switch Cover the photocell and check if the diode lights up under dark conditions. Have the instructor/TA check your circuit and proper functionality of the light intensity meter. Also included, but not shown, are the same 2 photocell sensors, 2 limit switches and 20+ page booklet they include capable of reading and writing computer line code and reading circuit diagrams. Note: We provide the Picaxe chip already programmed .

Also assume power from the switch, as you said Yes - but I have since the initial wiring (which looked just like your diagram) I have taken off the photocell from the second light. Seems to me that if the power goes off or on to the first light Lighting controls will also turn exterior lighting ON/OFF using a photocell/timeclock based on curfew (grounds Finally, we could add references to other pertinent documents, such as wiring diagrams, control zoning and equipment specifications and The PCB is designed to fit behind a single electrical blanking plate, with a hole to allow light to reach the photocell This gives the circuit hysteresis, as mentioned previously. The light level required for the unit to switch off again is higher .