Showing posts with label switch. Show all posts
Showing posts with label switch. Show all posts
Tuesday, 4 June 2013
Installing Light Switch
Wiring Diagram 3 If However You Want To Locate The.
Two Way Light Switch Wiring.
Light Switch Wiring Diagram.
Power At Light 4 Way Switch Wiring Diagram.
Neuronetworks Two Way Switch.
Light Fixtures How Three Way Switches Work Garbage Disposal Wiring.
Two Way Light Switch Wiring.
Power Light Switch Switch.
Installing A New Light And Switch.
Light And Outlet 2 Way Switch Wiring Diagram.
Tuesday, 9 April 2013
Remote controlled switch circuit
Here is a versatile remote controlled switch that can ON or OFF any appliance connected to it using a TV remote.
IR
remote sensor IC TSOP 1738 is used for receiving the signal. Normally
when no signal is falling on IC3 the output of it will be high. This
makes Q1 OFF.When a signal of 38 KHz from the TV remote falls on the
IC3 its output goes low.This makes Q1 conduct and a negative pulse is
obtained at pin 2 of IC 1 NE 555. Due to this IC1 wired as a monostable
multivibrator produces a 4 Sec long high signal at its out put.This
high out put is the clock for IC 2 which is wired as a Flipflop and of ,
its two outputs pin 3
goes low and pin 2 goes high. The high output
at pin 2 is amplified to drive the relay. For the next signal the
outputs of IC2 toggles state. Result, we get a relay toggling on each
press on the remote. Any appliance connected to this circuit can be
switched ON or OFF.
remote sensor IC TSOP 1738 is used for receiving the signal. Normally
when no signal is falling on IC3 the output of it will be high. This
makes Q1 OFF.When a signal of 38 KHz from the TV remote falls on the
IC3 its output goes low.This makes Q1 conduct and a negative pulse is
obtained at pin 2 of IC 1 NE 555. Due to this IC1 wired as a monostable
multivibrator produces a 4 Sec long high signal at its out put.This
high out put is the clock for IC 2 which is wired as a Flipflop and of ,
its two outputs pin 3
goes low and pin 2 goes high. The high output
at pin 2 is amplified to drive the relay. For the next signal the
outputs of IC2 toggles state. Result, we get a relay toggling on each
press on the remote. Any appliance connected to this circuit can be
switched ON or OFF.
Remote Controlled Switch Circuit Diagram with Parts List .
Remote Controlled Switch Circuit Diagram
Notes:
*
Before wiring the circuit make sure that the carrier frequency of the
TV remote you have is 38 kHz.For that wire the sensor part only ,point
your remote to the TSOP1738 and press any switch.If out put of TSOP1738
goes low then OK, your remote is of 38Khz type.Nothing to worry almost
all TV remote are of this type.
Before wiring the circuit make sure that the carrier frequency of the
TV remote you have is 38 kHz.For that wire the sensor part only ,point
your remote to the TSOP1738 and press any switch.If out put of TSOP1738
goes low then OK, your remote is of 38Khz type.Nothing to worry almost
all TV remote are of this type.
*
You can use any switch of the remote because for any switch the code
only changes, the carrier frequency remains same.We need this carrier
frequency only.
You can use any switch of the remote because for any switch the code
only changes, the carrier frequency remains same.We need this carrier
frequency only.
* Assemble the circuit on a good quality PCB or common board.
* The appliance can be connected through NO or NC and C contacts of the relay .
* Use a regulated 6V power supply for the circuit.
* Use a regulated 6V power supply for the circuit.
Tuesday, 26 March 2013
Mini RS232 Data Switch
Only simple materials and a little bit of skill are needed to build an RS232 switch. All that you need are two 9-way sub-D plugs with solder pins, a small piece of sheet aluminium, two sets of screw retainer posts, a 4-pole double-throw switch, a strain relief sleeve and a suitable plastic connector shell for a 25-way sub-D connector, with both in-line and right-angle cable entries (such as Conrad Electronics #711322). What is important is that the side cable entry together with its associated strain relief leaves enough room for the switch. If necessary, you may have to cut away a few square millimetres of the sidewall or a few ribs of the plastic shell.
Project image :
Mini RS232 Data Switch Image
The switch is operated via the in-line cable opening, as can be seen from the photo. A suitable switch with an overall length of 29 mm can be found in the Conrad catalogue under order number 708232. The only modification that must be made to the connector shell is to drill two holes for the retaining screws for the switch (M2.6 screws) at a spacing of 24 mm.
Circuit diagram :
Mini RS232 Data Switch Circuit Diagram
Connect the two sub-D connectors together using the piece of aluminium and the screw retainer posts. Then solder the cable to the connectors and the switch as indicated. The two connectors are wired somewhat differently. While the upper sub-D plug is connected 1:1 with the input cable (with the switch in the appropriate position), the DCD, DTR, DSR and RI pins of the lower connector are left open. This is because RTS and CTS are fully sufficient for handshaking, as long as DTR and DSR are connected to each other. The only leads that are switched are RXD, RTS, TSD and CTS. The ground potential is fed from the cable to both connectors. After everything has been properly soldered together, you can fit everything into the cable shell as shown.
http://streampowers.blogspot.com/2012/06/mini-rs232-data-switch.html
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