10 Arduino robot projects for beginners, from easiest to hardest

Ten Arduino robot projects in the order a beginner should try them, from a waving servo to a walking robot. Each one lists the parts it adds, a rough cost from US shop prices checked in October 2026, and a rough time to finish.

Researched by Riley Hart · updated Oct 18, 2026 · How we research

Short answer

Start with an Arduino Uno ($27.60 at the Arduino US store), a breadboard and one servo, and make it wave. Then build a two wheel car, teach it to avoid walls, then to follow a line. Each step adds one or two cheap parts. Would you rather buy everything at once? The SparkFun Inventor's Kit ($99.95, ages 10+) or the ELEGOO Smart Robot Car V4.0 ($75.99, ages 12+) covers most early projects.

#	Project	New skill	Parts it adds	Rough time
1	Waving robot hand	Uploading code, servo angles	1 micro servo ($5.95)	1 hour
2	Robot that senses you	Reading a sensor	Ultrasonic sensor ($3.95)	1 hour
3	Two wheel drive base	Motors and a motor driver	Chassis ($24.95), TB6612 driver ($6.95), AA pack ($2.95)	2 to 3 hours
4	Obstacle avoiding robot	Decisions with if and else	Nothing new	1 to 2 hours
5	Line following robot	Reading two sensors at once	2 line sensors ($4.08 each)	2 to 3 hours
6	Light seeking robot	Comparing two values	2 light sensors (photocells)	1 to 2 hours
7	Phone controlled car	Bluetooth	Uno R4 WiFi board ($29.95)	2 to 4 hours
8	Pick and place arm	Moving several servos in order	4 servos, 16 channel driver ($14.95)	1 weekend
9	Self balancing robot	Feedback control (PID)	Kit, such as Adeept ($79.99)	1 weekend
10	Walking robot	Timing many servos	Otto DIY or a hexapod kit ($89.99 Adeept)	1 to 2 weekends

Part prices from Arduino, Adafruit, SparkFun and Adeept stores, checked October 18, 2026. Times are our rough planning estimates for a first timer, not maker figures.

What you need for every project

Every project below uses the same base kit. Buy it once and reuse it.

Arduino Uno Rev3: $27.60 at the Arduino US store.
Half size breadboard with 78 jumper wires: $9.95 at Adafruit.
A USB cable and a computer. Arduino's Cloud Editor runs free in a browser, and the Arduino IDE 2 is open source.
A small screwdriver and some double sided tape.

1. Waving robot hand

Plug a micro servo into the Arduino and make it sweep back and forth. Tape a paper hand to it. This teaches the two parts of every Arduino program: setup() runs once at the start, and loop() repeats forever.

Parts: one TowerPro SG92R micro servo, $5.95 at Adafruit.

2. A robot that senses you

Add an ultrasonic distance sensor and print the distance on your computer screen. Then make the servo wave only when your hand is close.

Parts: an HC-SR04 compatible ultrasonic sensor, $3.95 at Adafruit. Adafruit says this version runs on 3V to 5.5V.

3. Two wheel drive base

Now the robot moves. Mount two motors on a chassis and control them through a motor driver. The Arduino cannot power motors directly, so the driver takes the battery power and switches it.

Parts: Adafruit's Mini Robot Rover Chassis Kit with two DC motors ($24.95, out of stock when we checked). Add a TB6612 motor driver ($6.95) and a 4 x AA battery holder ($2.95).

Assemble the chassis and attach the motors and wheels.
Place the motor driver on the breadboard and wire both motors to it.
Connect the battery pack to the driver's motor power and share a ground wire with the Arduino.
Write code for forward, backward, left and right, and test each one with the wheels in the air.
Put it on the floor and drive a square.

4. Obstacle avoiding robot

Move the distance sensor from project 2 to the front of the car. If something is closer than about 20 cm, the robot backs up and turns. This is the first robot that makes its own choices.

5. Line following robot

Put black electrical tape on a light floor in a loop. Two reflectance sensors under the front of the car see the tape. If the left sensor sees black, steer left; if the right one does, steer right.

Parts: two SparkFun QRE1113 analog line sensors, $4.08 each at SparkFun, plus a roll of black tape.

6. Light seeking robot

Mount two light sensors (photocells) on the front corners. The robot turns toward whichever side is brighter, so it follows a flashlight. The SparkFun Inventor's Kit includes a photocell, per SparkFun.

7. Phone controlled car

Swap the Uno for an Arduino UNO R4 WiFi, $29.95 at SparkFun. SparkFun says it has WiFi and Bluetooth Low Energy and a 12 x 8 LED matrix you can use as robot eyes. Then drive the car from a phone app.

Most beginner car kits, such as the ELEGOO Smart Robot Car V4.0, already include phone app control, per ELEGOO.

8. Pick and place robot arm

Build a small four servo arm that picks up a cork and drops it in a cup. A 16 channel servo driver keeps the wiring simple.

Parts: four SG92R micro servos ($5.95 each at Adafruit) and a PCA9685 16 channel servo driver ($14.95 at Adafruit). Add a separate battery for the servos. See our robot arm guide for the full steps.

9. Self balancing robot

A two wheel robot that stands up on its own uses a motion sensor and a control method called PID. It is hard to build from scratch, so most people use a kit. Adeept's Self Balancing Robot Car Kit is $79.99 on Adeept's site.

10. Walking robot

Walking needs many servos moving in careful timing. Otto DIY is a small open source biped you can 3D print. It uses Arduino IDE and plastic servos, and Otto DIY's own site says the build version is not ideal for young kids.

For six legs, Adeept's Ultimate Hexapod Spider Robot Kit is $89.99 and is programmed with Arduino, per Adeept.

Should you buy an Arduino robot kit instead?

A kit costs about the same as the parts and saves hours of shopping. The SparkFun Inventor's Kit v4.1.2 ($99.95) is for ages 10 and up and needs no soldering. It ends with a robot that avoids obstacles, per SparkFun.

The ELEGOO Smart Robot Car Kit V4.0 ($75.99, ages 12+) covers projects 3 to 5 and 7 in one box. ELEGOO lists line tracking, obstacle avoidance and app control. ELEGOO notes it needs basic electronic knowledge.

Questions people ask

What is a good first Arduino robot project?

A servo that waves, then a two wheel car that avoids obstacles. Both use cheap parts and teach the basics of setup() and loop().

What is the best Arduino robot kit for beginners?

For learning electronics with no soldering, the SparkFun Inventor's Kit v4.1.2 ($99.95, ages 10+). For a full robot car with an app, the ELEGOO Smart Robot Car V4.0 ($75.99, ages 12+).

How much does an Arduino robot cost?

A basic two wheel obstacle avoiding robot costs about $76 in parts at October 2026 Adafruit and Arduino store prices, plus AA batteries.

Is Arduino good for kids?

Yes, from about age 10 with help. SparkFun's Inventor's Kit is labeled for beginners ages 10 and up.

Do Arduino robot projects need soldering?

Most beginner projects use a breadboard and jumper wires, so no. Some motors ship without wires attached, which does need soldering.

Kits that fit this guide

10+SparkFun Inventor's Kit v4.116 projects on a breadboard, no soldering, ending in a small robot.about $100Check price

12+ELEGOO Smart Robot Car Kit V4.0Follows lines, avoids walls and drives from an app.$66 to $80Check price

Keyestudio 4WD Mecanum Robot CarMecanum wheels let it slide in any direction.about $52Check price

13+ELEGOO Conqueror Robot TankTracked tank you drive from your phone.about $100Check price

Learn as you build · Builder Club

Your kid learns how robots really work

Builder Club turns a kit into real learning: one step at a time, with progress you both can see.

Step by step build screens with a check after every step
Photo help the moment you get stuck
Progress, levels and badges for each kid
A new project every month for the same kit
Works for parents who have never built anything