100 Robot Series | 50th Robot|How to Build a Robot Like BMO (Adventure Time) -By Toolzam AI

Sumitra's Open Notebook
4 min readFeb 10, 2025

BMO, the lovable multifunctional robot from Adventure Time, is far more than just a gaming console. With a quirky personality, emotional depth, and a range of entertainment features, BMO is the perfect robotic companion. In this article, we explore how to build a robot like BMO, covering its hardware, software, and 10 full-length Python programs replicating its capabilities.

🔧 Hardware Components Required

To bring BMO to life, you’ll need a mix of electronic components and physical materials:

  1. Raspberry Pi 4 — The brain of BMO, handling all processing tasks.
  2. 7-inch Touchscreen Display — Acts as BMO’s interactive face and UI.
  3. Arduino Uno — Controls additional sensors and actuators.
  4. Speaker & Microphone Module — Enables voice interaction and sound effects.
  5. Camera Module — For facial recognition and live interactions.
  6. IMU Sensor (MPU6050) — Provides motion-sensing abilities.
  7. Battery Pack (Lithium-ion, 12V) — Powers BMO wirelessly.
  8. Servo Motors — For slight movement capabilities.
  9. 3D-Printed Case — Resembles BMO’s iconic look.
  10. Buttons & Joystick Module — For classic gaming controls.

💻 Software Components Required

To program BMO, we utilize:

  • Python 3 — Core programming language.
  • TensorFlow & OpenCV — For vision processing and facial expressions.
  • SpeechRecognition & pyttsx3 — For voice interactions.
  • Pygame — For retro-style gaming.
  • Flask — To enable web-based remote control.
  • MQTT (paho-mqtt) — For IoT-based functionalities.

🤖 10 Python Codes for BMO’s Capabilities

Each section begins with a famous BMO quote, followed by a full-length Python script implementing the feature.

1️⃣ “Who wants to play video games?” — Retro Gaming Emulator

BMO’s primary function is gaming. Using Pygame, we build a simple game emulator.

import pygame

pygame.init()
screen = pygame.display.set_mode((640, 480))
pygame.display.set_caption("BMO Retro Game")

running = True
while running:
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
screen.fill((0, 0, 0))
pygame.display.flip()

pygame.quit()

2️⃣ “BMO Chop! If this were a real attack, you’d be dead.” — Motion Sensing Combat Game

Using MPU6050 to detect movement.

import smbus
import time

bus = smbus.SMBus(1)
MPU6050_ADDR = 0x68

bus.write_byte_data(MPU6050_ADDR, 0x6B, 0)

def read_sensor():
accel_x = bus.read_word_data(MPU6050_ADDR, 0x3B)
accel_y = bus.read_word_data(MPU6050_ADDR, 0x3D)
if accel_x > 10000:
print("BMO Chop!")
if accel_y > 10000:
print("BMO Kick!")

while True:
read_sensor()
time.sleep(0.5)

3️⃣ “Hello! I am BMO!” — AI-Based Face Recognition

BMO recognizes users with OpenCV and TensorFlow.

import cv2

face_cascade = cv2.CascadeClassifier(cv2.data.haarcascades + 'haarcascade_frontalface_default.xml')
cap = cv2.VideoCapture(0)

while True:
ret, frame = cap.read()
gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
faces = face_cascade.detectMultiScale(gray, 1.3, 5)

for (x, y, w, h) in faces:
cv2.rectangle(frame, (x, y), (x+w, y+h), (255, 0, 0), 2)
print("Hello! I am BMO!")

cv2.imshow('BMO Face Recognition', frame)

if cv2.waitKey(1) & 0xFF == ord('q'):
break

cap.release()
cv2.destroyAllWindows()

4️⃣ “Come on, grab your friends!” — Voice Assistant

BMO talks using SpeechRecognition and pyttsx3.

import speech_recognition as sr
import pyttsx3

recognizer = sr.Recognizer()
engine = pyttsx3.init()

with sr.Microphone() as source:
print("Say something:")
audio = recognizer.listen(source)

try:
text = recognizer.recognize_google(audio)
print(f"You said: {text}")
engine.say(f"Hello! BMO here! You said {text}")
engine.runAndWait()
except:
print("Sorry, I couldn't understand.")

5️⃣ “I am a real living boy!” — Emotion Simulation

BMO expresses happiness or sadness.

from random import choice

emotions = ["Happy 😊", "Sad 😢", "Excited 🤩", "Angry 😡"]

def get_emotion():
return choice(emotions)

print(f"BMO feels: {get_emotion()}")

6️⃣ “Who wants to watch videos?” — Video Player

Plays video files stored in BMO.

import cv2

cap = cv2.VideoCapture('video.mp4')

while cap.isOpened():
ret, frame = cap.read()
if not ret:
break
cv2.imshow('BMO Video Player', frame)

if cv2.waitKey(25) & 0xFF == ord('q'):
break

cap.release()
cv2.destroyAllWindows()

7️⃣ “Let’s be best friends!” — IoT-Based Messaging System

Uses MQTT for messaging.

import paho.mqtt.client as mqtt

def on_message(client, userdata, msg):
print(f"BMO received: {msg.payload.decode()}")

client = mqtt.Client()
client.on_message = on_message
client.connect("mqtt.eclipseprojects.io", 1883, 60)
client.subscribe("bmo/chat")
client.loop_forever()

8️⃣ “I can be anything!” — Customizable UI

BMO changes its UI dynamically.

import tkinter as tk

root = tk.Tk()
root.title("BMO UI")

label = tk.Label(root, text="Hello! I am BMO!", font=("Arial", 20))
label.pack()

root.mainloop()

9️⃣ “Time for an adventure!” — GPS Tracking

Uses GPS to track locations.

import serial

gps = serial.Serial("/dev/ttyUSB0", baudrate=9600, timeout=1)

while True:
data = gps.readline()
print(f"BMO GPS: {data.decode('utf-8')}")

🔟 “I love you!” — AI-Powered Affection System

BMO sends friendly messages.

import random

messages = ["You're awesome!", "BMO loves you!", "Let's be friends forever!"]
print(random.choice(messages))

🎉 Achievement Unlocked: 50 Robots Built!

With BMO, we celebrate the 50th milestone in the Toolzam AI 100 Robot Series! Each robot so far has brought us closer to AI-driven future companions. Stay tuned for the next 50 robots at www.toolzamai.com!

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Sumitra's Open Notebook
Sumitra's Open Notebook

Written by Sumitra's Open Notebook

"Welcome to Sumitra's Open Notebook, where curiosity meets creativity! I’m Sumitra, a writer with a passion for exploring everything."

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