Welcome to my home made security devises.

1). I set this page up to help people build some very simple electronic security devises for there home, work, or charity organization, Most of the designs can be built at low cost.

All the links below have there own pages and how to set every thing up from start to finish also all the projects have been uploaded to You Tube so you can see them working.

Please note if you have any problems building any thing that I have designed just drop me an e-mail and I will do what I can to help you.

 

 

 This is for people that suffer from epilepsy and more and have a service dog that may need to activate a cell phone if the person had a seizure away from home or if no one was around to help.

 Build your own DTMF devise with built in Transponder ready programmed into the Microcontroler.

Welcome to this very basic design here we are showing how you can tell if your power supply has a positive Tip + or Negative tip - with out using a meter.

Build your own DTMF devise with built in Transponder ready programmed into the Microcontroler.

Welcome to this very basic design here we are showing how you can tell if your power supply has a positive Tip + or Negative tip - with out using a meter.

Welcome to this simple modification to allow a buzzer to be used with your DTMF global remote control devise when it decodes the DTMF Tones the Buzzer is isolated from the main 8870 Chip.

Welcome to this page on adding a 5 volt regulator to your DTMF devise this can be useful for powering digital circuits.

Welcome to this very simple Humane mouse trap GSM transmitter that will call you by cell phone when you have a mouse in your trap.

Welcome to this very simple page on how to see if your DTMF decoder is Receiving the DTMF tones by flashing a LED this will work with any DTMF decoder that use the 8870 Chip.

Welcome to this page on how to build a simple Cell phone to Cell phone remote Control from 1 to 8 Relay Channels.

Welcome to this page on how to build your own 8 channel Global Remote Control DTMF devise that will work from your PC or Cell phone and more.

How to build your own simple Reverse polarity protection devise with a Voltage regulator for 5 Volts output. 

Welcome to this simple page on how to design a very simple 20 meter range or more UHF Radio link that is working on the Frequency of 433.92MHZ.

How to power a 12 volt relay from 1.4 volt or LED Signal that can switch on a 12 Volt relay and lamp.

Welcome to this page on how to activate a silent panic alarm using a remote control for 20 or 30 meters range fixed to a cell phone with global range to summon help.

Welcome to this simple page on adding a Dual 3.5mm Jack Adaptor to the DTMF unit and two cell phones on different networks in case one network is down use the back up network to turn your devises on or off.

Welcome to this simple mains powered portable panic alarm system with hand held transmitter for 20 or 30 meters range that can be turned on or off.

Polarity Reverse Protection Switch that will find many uses in the field of electronics from the dangers of reverse polarity.

Now on Line Operate up to 8 electrical devises around your home, office or where ever with a cell phone to cell phone DTMF Remote control. from any where in the world.

Operate up to 8 electrical devises around your home, office or where ever you have a PSTN line from your cell phone or land line.

Fixed voltage regulators and why you need them in electronics.

Welcome To This Simple Touch Switch GSM System.

Welcome to this very simple page on how to build a GSM trip wire security system for your back garden or any where for that matter

Welcome to this updated version of my popular GSM monitored alarm add on here we will add a radio link from the alarm control panel to the receiver.

 

Welcome to this updated version of my popular GSM monitored alarm add on here we will play a security message as well no Land line needed.

 

Activate two phones at same time good for every thing on my page. like alarm or smoke alarm two people can now be contacted.

 

Listen to the sound in the back ground using a simple remote control and getting the unit to call you back with the help of the GSM network short range devise.

 

PSTN Phone line cut Alarm that sends a cell phone signal when some one cuts your phone line

 

How to build a simple Alarm add on that will turn your Alarm system in to a monitored one by sending you a signal with an old Cell phone when activated no monitoring fees.

 

Welcome to this page on how to build your own simple Voltage regulator for 5 Volts or 12 volts.

 

How to build a monitored smoke alarm that will call you on your mobile Phone or land line.