How to Build a Low-Cost DIY Electronic Spoon for Eating Soup


Eating soup can be a tricky affair - too much vigorous stirring can result in splashing, while not stirring enough results in uneven distribution of ingredients. An electronic spoon takes the effort out of getting every mouthful just right. In this guide, I'll walk you through a simple, low-cost way to build your own electronic spoon that automatically stirs your soup as you eat it.

Overview of Electronic Spoons

Electronic spoons use small motors to provide automatic stirring action. Sensors detect when the spoon is dipped into the soup, triggering the motor to turn on and slowly spin the head of the spoon around. This ensures your soup is perfectly mixed with each bite.

Benefits of electronic spoons:

Electronic spoons are sold commercially, but can be expensive. With a few inexpensive parts, we can build our own basic version.

Parts and Tools Needed

Building a DIY electronic spoon is simple with common components. Here's what you'll need:



Constructing the Electronic Spoon

With the parts gathered, we can start building. Follow these steps:

Step 1: Prepare the Spoon

Use a drill to make two small holes in the bowl of the spoon - one near the top, one near the bottom. Take care not to crack the bowl. These holes will allow us to mount the motor.

Step 2: Mount the Motor

Place a small dab of hot glue in the bowl. Press the motor in place aligned with the holes. The wires should face into the bowl. Add more glue around the base to hold it firmly.

Step 3: Solder the Switch

Solder about 3 inches of wire to each leg of the push button switch. This will extend the leads so we can mount the switch on the handle.

Step 4: Mount the Switch

Pick a spot on the handle to mount the switch. Drill a hole just large enough for the switch body to fit through. Pass the switch through and hot glue it in place.

Step 5: Connect Wires

Cut two 3" lengths of wire. Solder one end of each wire to the motor terminals. Solder the other ends to the switch terminals.

Step 6: Install Battery Holder

Hot glue the 3V coin cell battery holder to the back of the spoon handle. Solder its wires to the switch wires.

Step 7: Test

Insert battery into holder. Press the button switch. The motor should spin! Carefully add hot glue over the wire solder points to insulate them.

We now have a functioning electronic spoon!

Using Your Electronic Spoon

Operating your new gadget is easy:

Be sure to only press the button while the spoon is submerged, to avoid flinging soup. Avoid extremely hot soups as the components are not waterproof. Wash the bowl carefully by hand.

And that's it! Your electronic spoon provides automated stirring to simplify eating soup. This basic version with an on/off switch lets you control the mixing action. More advanced versions could use automatic sensors.

Building your own gadgets is a fun way to explore electronics and add unique personalized touches to your home. This electronic spoon is a creative, low-cost project anyone can tackle with common components and basic soldering skills. Adjust the design to match your needs and enjoy hands-free soup eating!