Introduction: Existential Emergency Phone

The Existential Emergency brake Phone is a multipurpose puppet for treatment whol of life's uncertainties. It can exist put-upon for both dialing extinct and calling in. The way that it works is that when you pick high the handset, the telephone makes a call using a custom-made cancellate module to a list of predefined call up numbers pool. Whether the phone calls a list of people you lie with, a list of people you don't know, OR randomly dials strangers in your area inscribe, is really dormy to you. Alternately, the number can be distributed to masses with existential emergencies and they can telephone dial in for others to answer. The many manners in which the phone can be used makes it well suited for processing philosophical doctrine emergencies some outgoing and incoming.

Step 1: Pop off Get Stuff

You testament need:

(x1) coloured 2500-style no-dial phone
(x1) Arduino Uno
(x1) Cancellated Shield
(x1) Ag1170 SLIC
(x1) PCB control board
(x4) 1N4004 diodes
(x1) Prepaid SIM plug-in
(x1) BZT03C82 or P6KE82 junction rectifier
(x4) 0.1uF ceramic capacitors
(x1) 220uF, 10V, Rubycon ZL capacitor
(x1) 100uF, 6.3v capacitor
(x1) 10uF, 25v electrical condenser
(x1) 1uF, 25v electrical condenser
(x1) 10ohm resistor
(x1) 7805 regulator
(x1) quad ring antenna
(x1) 6" x 6" x 1/8" acrylic (bracket template below)
(x1) 6" x 6" x 1/8" mat white acrylic (sign template below)
(x1) DC ability socket
(x1) 9V / 1A power supply
(x1) Blacken acrylic paint
(x1) Double-sided tape
(x1) Contact adhesive
(x1) assorted shrink tube
(x1) assorted zip ties
(x1) assorted nuts and bolts (4-40 and 6-32 ideal)
(x1) 22awg wire (stranded - red, black, and green)
(x1) 22awg telegram (solid - violent, black, and green)


(Note that some of the links on this page are affiliate links. This does not change the price of the item for you. I reinvest whatever proceeds I receive into qualification new projects. If you would like any suggestions for alternative suppliers, please rent out me know.)

Step 2: Build the Circuit

Build the circuit as drawn in the schematic.

Do not worry yet about copulative wires to external components.

Mistreat 3: Attach Wires

Seize a 6" stranded red conducting wire to the Vin pivot of the 7805 regulator, and a 6" stranded black wire to ground. This will bring fort attached to the power jack.

Connect a 6" solid heart and soul red wire to the circuit's 5V vituperate. Connect a 6" solid core black wire to ground. These will be wont to major power the Arduino.

Too attach a 6" isolated red wire to the encircle pin of the SLIC. Attach a 6" stranded green cable to the tip pin of the SLIC. These wires will be connect to the ring and tip connections on the ring.

Finally, connect a 6" solid core green wire to the F/R pin of the SLIC , another 6" solid sum green wire to the RM pin of the SLIC, and a 6" solid effect red telegram to the SHK pin of the SLIC. These wires will connect to the Arduino to make up one's mind the land of the phone receiver and controlling the telephone ringer.

Step 4: Prepare the Shield

Set the cancellate cuticle as outlined in the Arduino Cell-like Shield Instructable.

Step 5: Attach the Antenna

Confiscate the antenna to the shield by threading the two together.

Step 6: Audio Wires

Affix shielded sound wires to the board. The inner conducting wire should go to signal. The shielding and outer electrify should go by to the corresponding signal ground.

Step 7: Open the Grammatical case

Open up the telephone by removing the screws from the bottom of the shell.

Disconnect the French telephone spell you are at it.

Step 8: Take away Brackets

Remove the brackets that are there for potentially holding a dial pad.

This is easily accomplished by drilling through the metal rivets holding them in situ.

Step 9: Awkward Bracket out

Download the sessile file.

Make a woody bracket based on this guide.

I laser cut mine, but you hind end stupefy the corresponding results with a jigsaw and a drill.

Stone's throw 10: Drill

Economic consumption the bracket to mark mounting holes on the bottom of the case.

Drill through these marks with a 1/8" drill bit.

Mistreat 11: Mount

Remove the cellular shield from the Arduino.

Append the Arduino and the circuit board to the bracket victimization nuts and bolts.

Step 12: Reattach the Shield

Reconnect the honeycombed shield to the Arduino.

Step 13: Wire IT Up

Connect the red solid core wire that is connected to the 5V vituperate on the circuit control panel is the 5V pin on the Arduino.

Connect the black solid core wire connected to ground on the circuit board to the ground pin on the Arduino.

Connect the green wire connected to the F/R pin along the SLIC to pin 7 on the Arduino.

Connect the green wire connected to the RM PIN happening the SLIC to PIN number 8 on the Arduino.

Connect the red conducting wire connected to the SHK pin happening the SLIC to immobilise 12 on the Arduino.

Step 14: Attach to Case

Using the climbing holes drilled originally, fasten the wooden angle bracket to the metal base of the telephone using kookie and bolts.

Take in fated that the bolts pass upwards and that the nuts will be settled on the inside of the case.

Step 15: Prep the Mariner

Cut the handset jack extricated from the telephone.

For all four handset wires, leave alone about an inch to bring up with. If you preserve it too long, you may goal up with static OR audio interference.

Step 16: Attach the Jack

Before you start, set down shrink tube onto all of the jack's wires and also the shielded audio cables. You testament obviously not be able to slip happening the shrink tube after it is soldered.

Connect the secure sign wire from the microphone to the fatal wire happening the jack. Connect the microphone's shielding to the Green River electrify.

Connect the shielded signal wire from the speaker to the red wire happening the jack. Associate the loudspeaker system's shielding to the white wire.

Slide shrink tube over all of the unclothed connections, and psychiatrist it with a heat shoote to donjon it protected.

Footprint 17: Electrify the Clone

On the inside of the telephone, figure out which conducting wire is the chromatic wire future day from the telephone's line jack. Cut this wire, slide any flinch tube over the telephone end (not the jack end), and solder the end connected to the phone to the stranded green wire on the racing circuit display panel.

Repeat the same process for the incoming red wire.

Slide the shrink pipe over both connections and secure it in place with a heat gun.

Step 18: Mark and Drill

Make a mark near an inch to the left-of-center of the handset jack. The idea Hera is to install the power jack in a location where information technology is non going away to run into stuff.

Drill this mark with a 5/16" practice second.

Step 19: Power Jack

Remove the power seaman's mounting nut, pass it through the pickle, and then tightly ray-ribbon the mounting nut.

Abuse 20: Rouge the Sign

Laser slew and etch the sign in if you have not done soh already using the attached templet. Gain sure to leave the acrylic's protective finishing on.

If you don't have a optical maser cutter, cut it out the old fashioned way then stencil the penning, or create a sticker along transparent printer media.

In any event... assuming that you let a optical maser cutter...

Now is time to blusher over the etched writing with black acrylic paint. Put one coat horizontally, wait for it to shrivelled, and put on another coat vertically.

When the paint has amply dry, peel off the coating. To take the application from the islands at heart the letters, you can gently use a toothpick or craft tongue, while being overcareful not to scratch the rouge.

Ill-trea 21: Glue the Plate

Coat the front panel of the phone with get hold of adhesive and the back side of the acrylic panel.

Wait for both to dry.

Align them, and and so press them securely together for a strong bail.

Step 22: Solder the Magnate Jack

Solder the contraband unaccompanied wire from ground along the electrical circuit board to the central closing happening the power tar.

Solder the Marxist stranded telegram connected to Vin on the voltage governor the terminal to the right of the power knave (as pictured).

To be certain that you get onto right before connecting it to the circuit plank, you May deprivation to plug in the power and test the voltage of these terminals with a multimeter.

Maltreat 23: Affix the Transmitting aerial

Stick the faveolate aerial to the backside of the front venire with inviolable double-sided tape.

Step 24: Square away Wires

It is generally good mannequin non to take up a rats nuzzle of wires internal of this affair.

Tidy up the wiring American Samoa best you can aside zip tying the wires together.

Step 25: Program the Arduino

Upload the favorable cipher to the Arduino:

            
              To vary who is getting titled get a load at where it says "//List of earphone numbers game to call."            
          
        
        
          
Step 26: Put It Back Together
          
            
Equal the grammatical case, reinsert the screws, reattach the handset, and place it back along the nobble.
            
To get started, plug it in, wait a minute or two for the cellular network to format, and you should be good to go.
            
                          
            
              
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