Quantity   Component name
1 × ESP32 Microcontroller: The ESP32 is the core controller of Juno, handling all processing and communication. It integrates Wi-Fi and Bluetooth, enabling connectivity with networks and other devices. Its dual-core processor ensures efficient multitasking. It also supports low-power operations, essential for mobile applications.
4 × Servo Motors MG90s: Servo motors control the movement of Juno, allowing precise and responsive actions. They provide rotational motion, ideal for animating limbs or head movements. Servos are controlled by PWM (Pulse Width Modulation) signals sent from the ESP32. Their accuracy makes them perfect for interactive robotics.
1 × OLED Screen: The OLED screen serves as the visual interface for Juno, displaying messages, status updates, and emotions. It enhances interaction by providing real-time feedback to the user. Its high contrast and low power consumption make it suitable for compact, mobile robots like Juno. It’s easily controlled via I2C or SPI.
1 × Touch Sensors: Touch sensors enable Juno to react to user interactions. They detect physical contact, triggering responses like movement or display changes. These sensors make Juno interactive and capable of simple gesture-based communication. They add a layer of responsiveness, making the bot more engaging and lifelike.
1 × 5V Buck Converter: A 5V buck converter efficiently steps down a higher input voltage (e.g., 12V or 24V) to a stable 5V output. It’s ideal for powering components like the ESP32, sensors, and servos in robotics projects. The converter uses switching technology, which minimizes power loss and heat generation. It’s compact and ensures consistent voltage supply, making it crucial for mobile and battery-operated systems.
1 × 7.4V LiPo 600mAh Battery: The 7.4V LiPo (Lithium Polymer) battery provides portable power for Juno, offering a compact and lightweight energy source. With a capacity of 600mAh, it supplies a moderate amount of current for small robotics projects like Juno, ensuring decent runtime. LiPo batteries are known for their high energy density, making them ideal for powering devices that require lightweight and rechargeable power sources. This battery type also features a high discharge rate, ensuring reliable performance of components like servos and sensors while minimizing weight in mobile projects.