Lights for models

[goo67]

0
I have a circuit of LEDs - say L1-L10. My requirements:

1. No visible switch
2. Illuminate the LEDs successively (only ever one at a time) every time the user passes a magnetic "wand" over the switch. (Mode 1-10)
3. Using the same "wand" permit the user to set the circuit to an automatic mode whereby an LED lights for a few seconds then the next, etc. Again only one LED at a time. (Mode 11)
4. Permit the user to turn on all LEDs simultaneously. (Mode 12)
5. The circuit should remember which Mode was last enabled when reactivated.
6. Battery operated 9V.

I've seen kits advertised with this type of feature using a reed switch. Thus far I've been unable to locate any information on how such a switch is used to change modes. Can anyone help me find out how this is done? Ic ?

 

[rjenkinsgb]

That would be operated by a microcontroller (PIC, Arduino etc.) with a program to give the effects.

The reed switch is electrically just a switch, same as a pushbutton switch, connected to an input with a pull-up or pull-down resistor. The program monitors the switch input and changed mode or sequence when that is operated.

 

[goo67]

I just purchased one and dont understand. There is no micro controller (arduino) just a ic chip that i cant identify, no markings at all. I will upload pics or vid soon so it clarifys what im trying to do. Thanks for the quick response.

 

[Nigel Goodwin]

I just purchased one and dont understand. There is no micro controller (arduino) just a ic chip that i cant identify, no markings at all. I will upload pics or vid soon so it clarifys what im trying to do. Thanks for the quick response.

How do you know it's not a micro-controller if you can't identify it?, and an Arduino isn't a micro-controller anyway, it's a development system that INCLUDES a micro-controller (of various types, but originally AVR).

The obvious way to do it would be a micro-controller, as with most things - as you've seen kits, post a link to one.

 

[ZipZapOuch]

A CD4017 should do 10 different modes. There another 16 channel chip that could also do it without a microcontroller. At least, that's how we'd do these kind of projects back in the good old days. The reed switch just toggles the CD4017 to the next channel.

 

[goo67]

All set thanks guys

 

[ZipZapOuch]

All set thanks guys

How did you elect to solve it?

 

[goo67]

I just used a reedswitch and attiny85. Thanks for the help