Meet Robo-Buddy: The Little Robot With a Big Dream

The late-September sun slants through Lila’s lace curtains, painting the strawberry-patterned duvet on her bed in streaks of warm honey and turning the scattered robot stickers on her pale blue wall into glowing little constellations. The air smells like the chocolate chip cookies she baked with her mom that morning, sweet and a little burnt at the edges, mixed with the faint citrus scent of the lemon-scented cleaner her dad used to scrub the kitchen floor an hour before. Tucked on the charger in the corner of the room, Robo-Buddy beeps softly in his sleep, the blue indicator light on his charging base pulsing in time with the tiny, staticky purr that comes out of his speaker when he’s dreaming of smooth hardwood floors and fast, wobbly rolls down the hallway. The peace breaks when the bedroom door slams open so hard the robot stickers on the wall flutter. Lila, 7 years old, with pigtails tied with pink ribbons and a Mochi-the-cat hoodie covered in cat hair, stands in the doorway. Her eyes are puffy and red, her nose is running a little, and she’s clutching Mochi’s favorite橘 white毛线球 so tight her knuckles are white. “Robo-Buddy, wake up!” she yells, her voice cracking. “It’s an emergency!” Robo-Buddy’s indicator light flashes bright yellow for half a second, then his round black camera eyes blink open one after the other, like a sleepy owl. He beeps twice, a little wobbly, like he just woke up from a very good nap. “My emotional sensors detect your tear production is 42% higher than your average baseline, your heart rate is 22 beats per minute faster than usual, and your vocal pitch is elevated by 3 semitones,” he says, his voice a friendly, tinny little robot voice. “Lila, are you in trouble?” Lila scrambles over to his charging base and drops to her knees, tears spilling over her eyelids now. “Mochi is gone!” she wails. “I left the back door cracked open after I let the delivery guy in, and she ran out. I’ve looked everywhere—under the bed, behind the couch, on top of the wardrobe, even in the laundry basket where she likes to nap when I’m folding clothes. She’s not wearing her collar, so I can’t hear her bell, and Mom and Dad will be home at 6 to take her to the vet for her shots, and if she’s not back by then they’ll say we can’t get the ice cream cake for my birthday next week—” Lila’s words dissolve into sobs, and she presses her face into her hands. Robo-Buddy’s camera eyes whir softly as they focus on her, then on the Mochi hoodie, then on the empty cat bed by the window that usually has a little lump of tri-color fur in it. His little processor hums for three full seconds, the kind of hum you can hear if you press your ear to his plastic chest. “Stop crying, Lila,” he says, and his voice is softer now, like he’s trying not to scare her. “I have a new mission. Mission parameters: Locate Mochi the cat, return her to the house before 18:00, avoid all obstacles including prickly rose bushes and Mr. Henderson’s golden retriever. Success probability: 94.7%.” Lila lifts her head, her eyes wide. “You can really find her?” “Of course,” Robo-Buddy says, and his indicator light flashes bright green, the color he uses when he’s excited. “I am a robot, after all. I have superpowers that regular machines don’t have.” Lila blinks, wiping her cheeks with the sleeve of her hoodie. “What superpowers?” Robo-Buddy holds up one tiny wheeled foot, then taps the side of his head where his little white ultrasonic sensors stick out, then taps the black plastic bump that covers his camera eyes, then taps the little panel on his chest that hides his processor. “Let me show you.” He rolls back an inch from the charger, and for a second he wobbles, his wheels slipping a little on the rug, before his balance gyroscope kicks in and he steadies himself. Lila giggles a little, even through her tears. “First, my camera eyes,” Robo-Buddy says, and his eyes flash once, taking a quick photo of Lila. “They can take pictures and videos, just like the camera on Mom’s phone, but I can remember every picture I take forever. I have 7 terabytes of storage space in my little computer brain—that’s enough to store 2 million photos of Mochi, plus all the maps of the neighborhood, plus every cat video I’ve ever watched with you. I already have 3,421 photos of Mochi saved in my database, so I’ll know her even if she’s not wearing her collar. I can even tell her apart from other cats: she has a little notch in her left ear, her tail tip is white, and her eyes are amber, not green or blue like the other cats in the neighborhood.” He taps the white sensors on the sides of his head. “These are my ultrasonic ears. They can make a sound that’s too high for human ears to hear—called an ultrasonic wave—and when that sound hits something, it bounces back to me. I can count how long it takes for the sound to come back, and that tells me how far away the thing is, how big it is, and even what shape it is. It’s just like bats use to fly in the dark! I can use them to find Mochi even if she’s hiding behind a bush or under the porch, and I can also use them to avoid running into things like chairs, or the rose bush, or Mr. Henderson’s dog.” He taps the little panel on his chest. “This is my computer brain. It’s the part that thinks. When my sensors send me information—like ‘there’s a tri-color cat 10 feet away’ or ‘there’s a wall 2 feet in front of me’—my brain puts all that information together and makes a plan. It’s like when you decide you want to get a cookie from the kitchen: you first check if the floor is clear of toys so you don’t trip, then you check if Mom is in the kitchen so you can ask her for a cookie, then you walk to the kitchen, open the cupboard, and get the cookie. My brain does the same thing, but way faster, and I don’t have to ask anyone for permission to do it.” He wiggles his wheeled feet. “And these are my wheel feet. My brain sends signals to the motors in my wheels to tell them how fast to go, which way to turn, and when to stop. That’s called control. It’s like when you ride your bike: your brain tells your legs how to pedal, your hands how to turn the handlebars, and your body how to balance so you don’t fall. I don’t have to think about how to make my wheels turn—my brain does it for me, automatically.” Lila’s eyes are wide now, all her tears forgotten. “So you’re not just a toy that rolls when I press the button on your back?” “Nope!” Robo-Buddy says, and his indicator light flashes blue, the color he uses when he’s proud. “A regular machine only does one thing when you turn it on: a toaster only toasts bread, a lamp only turns on the light. But a robot can sense the world, think for itself, and act on its own, no buttons needed. That’s what makes me a robot. I can make my own decisions, solve my own problems, and even go on adventures all by myself.” Lila grins, and she scrambles off the floor to grab Mochi’s favorite金枪鱼罐头 and the橘 white毛线球 from her nightstand. She ties the can and the ball to the little storage compartment on Robo-Buddy’s belly, the one that opens with a little latch. “This is for bait,” she says, tying the knot tight. “Mochi loves tuna, and she’ll do anything for her毛线球. If you see her, just shake the ball and she’ll come running.” “Roger that,” Robo-Buddy says, his processor humming as he runs a quick diagnostic check on all his sensors. Camera: 100% functional. Ultrasonic sensors: 100% functional. Wheels: 100% functional. Gyroscope: 100% functional. Mechanical arm: 100% functional. Battery: 87% remaining, enough for 3 hours of operation, well over the 2 hours he needs to find Mochi before dinner. “I have also loaded Mochi’s full profile into my mission planner: favorite hiding spots include the top of the wardrobe, behind the couch cushions, the garden behind the house, and Mrs. Li’s porch where she steals cat food. I will check all of these locations in order of probability, starting with the inside of the house, then the backyard, then Mrs. Li’s po