Ghost detector
2018-Oct-15, Monday 08:45 pm![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
chebeUnexplained cold spots? Feeling of being watched? Could you have misbehaving tech, or ghosts? Let's build a cute little ghost detector you can leave all around you for ambient observance.
First you'll need a simple near-field tester for electromagnetic compatibility. I cut the battery holders off the back and started prodding around the circuit with a multimeter and crocodile clips.
Once I had figured out how to power the circuit, I attached a super adorable Tekiniko Ghost LED to the terminals of one of the LEDs. Basically just augmenting the circuit.
I wanted the unit to be as small and neat as possible so I tried to squeeze everything in behind the LED board.
Besides the LED board and the phone flasher, I mean EM detector, I have a LiPo battery and a retired LilyPad Simple Power component.
The detector is soldered onto the back of the LED board (so it doesn't show on the front) with regular white wire. This is stiff enough to pose the detector as a stand for the unit.
The Simple Power board has its jumper soldered closed, and is soldered onto the detector with silicon wire. This is my first time using this stuff, and it's so flexible that I can see it being great in wearable pieces.
That's it. Now all you need to do is leave it where it will encounter electromagnetic disturbance.
First you'll need a simple near-field tester for electromagnetic compatibility. I cut the battery holders off the back and started prodding around the circuit with a multimeter and crocodile clips.
Probe the phone flasher to find the right points
Photo by chebe
Once I had figured out how to power the circuit, I attached a super adorable Tekiniko Ghost LED to the terminals of one of the LEDs. Basically just augmenting the circuit.
Prototype up the circuit
Photo by chebe
I wanted the unit to be as small and neat as possible so I tried to squeeze everything in behind the LED board.
Wire up circuit into a neat package
Photo by chebe
Besides the LED board and the phone flasher, I mean EM detector, I have a LiPo battery and a retired LilyPad Simple Power component.
View from top; all packed in
Photo by chebe
The detector is soldered onto the back of the LED board (so it doesn't show on the front) with regular white wire. This is stiff enough to pose the detector as a stand for the unit.
View from back; all packed in
Photo by chebe
The Simple Power board has its jumper soldered closed, and is soldered onto the detector with silicon wire. This is my first time using this stuff, and it's so flexible that I can see it being great in wearable pieces.
View from back; battery removed
Photo by chebe
That's it. Now all you need to do is leave it where it will encounter electromagnetic disturbance.
