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To program a BallyBot, install the ESP32 board package in Arduino IDE, select AI Thinker ESP32-CAM, connect the robot through an FTDI Type-C programmer and data-capable USB cable, then upload while the robot is in upload mode. Start by testing GPIO 4 with a blink sketch before changing motor-control code.
What you need before programming
- An installed Arduino IDE. BallyBots’ tutorial specifies version 1.8.x or later.
- The ESP32 board package from Espressif.
- An FTDI Type-C USB programmer and a USB-C cable that supports data, not just charging.
- The BallyBot example sketches, available from the Esp32Robots repository.
- A computer account with permission to access the programmer’s serial port.
The BallyBot is based on the ESP32-CAM. The official programming tutorial, published June 16, 2025, is the reference for its setup and upload sequence: Programming your BallyBot.
Install ESP32 support and select the board
- Open Arduino IDE and go to File > Preferences.
- In Additional Boards Manager URLs, add
https://dl.espressif.com/dl/package_esp32_index.json. If the field already contains another URL, preserve it and separate entries as the IDE specifies. - Open Tools > Board > Boards Manager, search for ESP32, and install ESP32 by Espressif Systems.
- Go to Tools > Board and select AI Thinker ESP32-CAM.
Download the BallyBot examples from the Esp32Robots repository, unzip them into your Arduino sketches directory, and open the relevant .ino sketch.
Connect and upload a sketch
- Connect the BallyBot to the computer using the FTDI Type-C programmer and a USB-C data cable. Confirm the programmer is connected in the correct orientation and position for the BallyBot.
- Put the robot into upload mode using its upload switch.
- With upload mode enabled, turn the robot off and then back on. This power cycle places the ESP32-CAM in programming mode.
- In Arduino IDE, open Tools > Port and choose the port assigned to the programmer. The BallyBots tutorial uses
COM3as an example; select the actual port on your computer, which may have a different name. - Click Upload and wait for the IDE to finish transferring the sketch.
- After a successful upload, turn upload mode off and power-cycle the BallyBot again so it runs the newly uploaded program.
The official tutorial says the wheels should turn backward for about one second after a successful upload. Treat that as the tutorial’s expected behavior, not as a universal test for every hardware revision or sketch.
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#1 Best Overall
ELEGOO UNO R3 Smart Robot Car Kit V4 with Camera, Compatible with Arduino
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Verify the board with a GPIO 4 blink test
A simple output test helps separate an upload problem from a motor-control or pin-mapping problem. In a blank sketch, upload:
void setup() {
pinMode(4, OUTPUT);
}
void loop() {
digitalWrite(4, HIGH);
delay(1000);
digitalWrite(4, LOW);
delay(1000);
}The sketch sets GPIO 4 high for one second and low for one second repeatedly. The BallyBot tutorial uses this as a basic first verification; the expected indication is the board’s LED responding to the output. If it does not, recheck the board, port, cable, upload-mode switch, and power-cycle sequence before moving on to motors.
Rank #2
Makeblock mBot STEM Coding Toys Robotics for Kids Ages 8-12
- Entry-level Coding Robot Toy: mBot robot kit is an excellent educational robot toys, designed for learning electronics, robotics and computer programming in a simple and fun way. From Scratch to Arduino, this STEM projects for kids ages 8-12 helps kids to learn programming step by step via interactive software and learning resources
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How BallyBot motor control works
The motor-control lesson describes movement as combinations of digital HIGH and LOW signals on motor-control GPIO pins. Forward, backward, and stop behavior depends on the relevant pin combinations. The lesson specifically warns that setting both direction signals HIGH cancels the signal and is not a recommended stopping method.
Do not copy pin numbers from an unverified BallyBot revision or guess at wiring. The motor lesson notes that assignments can vary by hardware revision, so confirm the pin mapping for your specific board before changing code or wiring. The lesson is BallyBot Motor Control, published March 31, 2025. Because the pin mapping is revision-dependent, this tutorial does not assume one universal motor-pin table.
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Rank #3
Sillbird STEM Robot Building Kit with Remote Control Gifts for Boys 8-13
- 🎁Ideal Gift for Kids & Teens: Celebrate child’s growing skills and important milestones with this 5-in-1 Programmable robot set. Whether for birthdays, holidays, or achievements, it’s the perfect gift that encourages learning and hands-on fun—a gift that grows with them
- ✨STEM Educational Toys: The robot set for kids ages 8+ combines the fun of STEM learning. It encourages hands-on learning and early programming as they build, which can spark creativity and imagination and provide hours of screen-free play
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Fix common upload failures
- The computer does not show a serial port: Verify that the USB-C cable supports data, then check the FTDI Type-C programmer’s connection and reconnect it. A charge-only cable will not provide the serial connection needed for uploading.
- The IDE cannot connect or upload: Confirm AI Thinker ESP32-CAM is selected, choose the programmer’s actual serial port under Tools > Port, and ensure upload mode is enabled before turning the robot off and on.
- Upload completes but the sketch does not run: Turn upload mode off and power-cycle the robot again. The post-upload boot sequence differs from the sequence used to enter upload mode.
- The wheels behave unexpectedly: Stop testing motor code and confirm the GPIO assignments against the BallyBot hardware revision. Do not use both direction signals
HIGHas a stop command.
What to try after the first upload
Once basic uploads work, the ESP32’s Wi-Fi capabilities make browser-based driving a natural next project. BallyBot’s web-control lesson configures the ESP32 as a Wi-Fi access point and uses Arduino WebServer routes for /forward, /left, /right, and /backward. The official learning page also lists camera and video lessons for projects that build on the ESP32-CAM.
Quick Recap
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Makeblock mBot2 Coding Robot for Kids, Code Learning Support Scratch & Python Programming, Robotics Kit for Kids Ages 8-14 and up, Building STEM Robot Toys Gifts for Boys Girls
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- Build Your Own Programmable Robotic Arm. This advanced robot kit includes a 5DOF programmable robotic arm, powered by an ESP32 controller. Kids and teens can build their own robot, learning how to grab, lift, and place objects. With 16 guided tutorials and HD assembly videos, this robotics kit offers hands-on experience in coding robot control, real-world robotics, and problem-solving—ideal for STEM kits for kids age 12–14 and engineering kits for kids age 14–16.
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- Build Your Own Robot with Hands-On STEM Fun. Equipped with an ESP32 controller and compatible with Arduino & Scratch, this robotics kit includes 16 story-based tutorials that guide beginners step by step through assembly and coding. Perfect for science fair projects, classroom use, or fun family STEM nights, helping kids or teens master electronics, mechanics, and programming. Tutorial & code download path: ACEBOTT Official Website → Resources → WIKI and Assembly Video.
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