Continuity Tester (Using Android Phone)

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Introduction: Continuity Tester (Using Android Phone)

Continuity tester using android phone

Requirements:

1.Android Phone

2. 3.5mm jack or old headphone with mic

3. wire (multimeter probes is better)

4.Application

https://play.google.com/store/apps/details?id=com....

Step 1: Cut the Headphone

Step 2: Find the MIC and GND Wires

Step 3: Connect 3K Resistor Parallel to the MIC and GND

Connect 3K resistor parallel to the MIC and GND and connect the probes wire and solder it.

Step 4: Finally Insulate the Wires

Step 5: Install Application to the Phone

click to install app

https://play.google.com/store/apps/details?id=com.topstarcreations.continuitytester

Step 6: Testing.

click here to see the video

https://www.youtube.com/watch?v=djYh4hbMTLo

Step 7: Don't Check Charged Components

4 People Made This Project!

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18 Comments

0
stateit
stateit

6 years ago

What fusing on the leads should I use to protect the phone against inadvertently placing across mains voltage?

0
tsaltzman
tsaltzman

Reply 5 years ago

if you don't know for 100% whether or not what you're working on is hot or not, than you shouldn't be working on it bro.

0
topstarcreations
topstarcreations

Reply 5 years ago

Don't check the charged components. no fusing.

0
TFOzkorucuklu
TFOzkorucuklu

5 years ago

Cool project. I really want to do but I can't do it now, because my phone had died. :/

0
V4NZ777
V4NZ777

Reply 5 years ago

you probably tested a condutor with voltage

0
BuhlMan
BuhlMan

5 years ago

Not a bad idea but as a technician in my past trade and current hobby, I will always relay on my trusted Fluke meters. Perhaps Fluke will come out with one (unless they one already)

0
eagas
eagas

Reply 5 years ago

They do, although it is a Bluetooth interface for the 287/289 series multimeter. The actual measurement is done by the multimeter and it is sent to the phone via the accessory. Just for the sake of it, I own a 289 and I just love it, after a 179 and 115 series. If not the best portable meters surely in the top three.

0
Mjtrinihobby
Mjtrinihobby

6 years ago

I love this instructable. I can't wait for full multimeter modules to be available for smartphones.

0
ironsmiter
ironsmiter

Reply 5 years ago

something like this ?

I have multimeters in just about every tool box, and car (at least 6 or 7, spread about), but my smartphone is almost always on my hip. Between datalogging, and reduction in size, I am right there with you, in the "can't wait" group.

0
Mjtrinihobby
Mjtrinihobby

Reply 5 years ago

hooray!

0
DIY Hacks and How Tos

Great idea! Having a continuity tester in your phone is much better than having to carrying around a multimeter all the time.

0
topstarcreations
topstarcreations

Reply 5 years ago

thank you sir.

0
ccray1954
ccray1954

5 years ago

what watt or volts are the 3k ohm resistor?

0
topstarcreations
topstarcreations

Reply 5 years ago

across the resistance below 0.5V

0
ccray1954
ccray1954

5 years ago

i like this and need one for my ground to antenna checking continuity...excellent might try to make myself...

0
Antzy Carmasaic
Antzy Carmasaic

6 years ago

Love the idea. Simple and easy to use. Do add a warning to remove any power from the circuit you are testing and make sure all capacitors are discharged, as your costly phone is at stake.

0
topstarcreations
topstarcreations

Reply 5 years ago

Thanks.. yes you are right.

I will surely add a warning.