PeeCee TED

PeeCee TED, The packed powerful microcomputer that brings your robotic visions to life with precision and versatility.

Welcome to the ever-growing ecosystem of Yudu Robotics, where innovation meets creativity, and the future of robotics continues to evolve. At the heart of it all is PeeCee, a Red Dot Award-winning computational kit designed to power the entire Yudu Robotics ecosystem. PeeCee is not just another gadget; it's the brain behind every Yudu creation, from Roboki and Klaw-b to Crawlee and Zing. Every robot, sensor, and attachment in our expanding lineup either relies on PeeCee or is built around it, making it the core of everything Yudu Robotics offers.

PeeCee comes equipped with a rich array of internal sensors that makes it versatile and powerful. With a microphone, temperature sensor, accelerometer, gyroscope, color sensor, light sensor, distance sensor, gesture sensor, and touchpad buttons, PeeCee is designed to sense and respond to its environment in real time. Its expressive LED eyes and smile, paired with its buzzer, allow it to interact with users..

But that’s just the beginning! Whether you’re a beginner coding with hex blocks or an advanced coder diving into Python or C, PeeCee’s flexible programming environment opens the door to limitless possibilities. From smart robotics projects to fun experiments, PeeCee empowers users to bring their creative visions to life.

Getting started

In this guide, you will learn everything you need to start exploring PeeCee and its vast capabilities. It will cover PeeCee’s features, including its built-in sensors and internal components that make it a powerful tool for robotics and coding projects. You will also find detailed information about PeeCee’s anatomy, helping you understand each part and its functionality. Additionally, it will delve into external components and modules that can be connected to PeeCee to enhance its versatility. By familiarizing yourself with these elements, you will be well-equipped to begin your journey into robotics and innovation with PeeCee.

PeeCee Anatomy

From charging and input ports to interactive elements like touchpads and LEDs, knowing the anatomy of PeeCee will help you make the most out of its capabilities. Let’s dive into the details of PeeCee’s structure and how each part plays a role in your creative projects.

Part	Functionality
Type C Port	Used to Charge PeeCee and Program it
Port A	GPIO port  ( used to connect external sensor or device )
Port B	GPIO port  ( used to connect external sensor or device )
Port C	GPIO port  ( used to connect external sensor or device )
Port D	GPIO port  ( used to connect external sensor or device )
Touchpad Buttons	Facilitates Touch Input
Power Button	Switches On PeeCee
Reset Button	Erases Program when Double tapped
RGB LEDs (Eyes)(Smile)	LED Output
Temperature sensor	Measures temperature
Distance Sensor	Measures distance
Gesture Sensor	Detects gestures
Colour Sensor	Detects Colour Intensity

Key Features:

• Compact and lightweight design for portability.
• Repeated Reusability and Measurement.
• Compatible with a wide range of sensors and motors.
• Programmable with PLODE for easy coding.
• Built-in sensors for advanced interaction capabilities.
• Ideal for STEM education and personal projects.

Hardware

PeeCee comes equipped with a variety of in-built sensors, allowing users to create more complex and dynamic projects. These sensors can be easily programmed using the PLODE app and enable advanced interaction with the environment. Whether it’s building a light based light shows, or a proximity-based security system, the flexibility of the PeeCee's in-built sensors opens endless possibilities for hands-on exploration and learning.

Mechanical Specifications

• Material:

• Dimensions:

• Weight:

Electronics Specifications

PeeCee offers a wide range of built-in components designed for interactive learning and experimentation. Powered by the ESP32 microcontroller, it enables seamless integration of various sensors, actuators, and communication protocols, making it highly adaptable for educational projects.

Core Features of ESP32:

• Dual-core processor: Handles multiple tasks simultaneously.
• Wi-Fi and Bluetooth: Supports wireless communication and internet connectivity.
• Low power consumption: Optimized for portable, battery-powered applications.

Specification	Details
Board Name	PeeCee
Processor	240 MHz Dual core risc-v Processor
Memory	320 KB RAM, 4 MB Flash
Battery	Internal battery, 3.7 V Li-Po 1200 mAh Battery
Connectivity	Bluetooth (via PLODE app)

Built-in Sensors and Specifications :

PeeCee TED comes equipped with advanced sensors for enhanced interaction and functionality. By incorporating multiple sensors into a single project, users can experiment with multi-sensory input, making PeeCee an adaptable platform for more sophisticated robotics and automation projects. These can be incorporated to build smarter projects that understand the surroundings as well as the user. Let your imagination have a run. Let's Take a Brief Look onto these in-built sensors of PeeCee :

Component	Input/Output	Function	Specification / Range
Microphone	Input	Captures sound	Analog/Digital
Temperature Sensor	Input	Measures ambient temperature	-40°C to +85°C
Accelerometer	Input	Measures acceleration (x, y, z)	3-axis
Gyroscope	Input	Measures angular velocity (x, y, z)	3-axis
Color Sensor	Input	Detects RGB color intensity	0-255 per color channel
Light Sensor	Input	Measures light intensity	Photoresistor/Photodiode
Distance Sensor	Input	Measures relative distance	Ultrasonic
Gesture Sensor	Input	Detects hand movements/gestures	Infrared/Capacitive
Touchpad Buttons (4x)	Input	Provides touch detection areas	Capacitive
LED (Eyes) 12x	Output	Visual feedback for expressions	RGB
LED (Smile)	Output	Single-color visual output (white)	Single Color
Buzzer	Output	Produces audio output

Gesture Detection, Proximity Detection, Colour Detection and Ambient Light Detection

The PeeCee packs a powerhouse IC that combines Gesture Detection, Proximity Detection, Colour Detection, and Ambient Light Detection into one sleek package. This smart module doesn’t just gather data; it operates with precision and flair, bringing efficiency and intelligence to your PeeCee. It handles everything from detecting your swipes to figuring out the RGB values of your environment all while sipping less power.

What makes it tick? It is powered by a state machine, which orchestrates all the operations seamlessly. This enables smooth gesture recognition, precise proximity detection, and accurate color and ambient light measurements. Integrated directly into the PeeCee, the IC leverages its I2C digital output and highly integrated advanced design to deliver top-notch performance ensuring seamless functionality and versatility.

IC Specifications

Specification	Details
Supply Voltage	2.4 V to 3.6 V
Operating Voltage	3.3 V
Max Detection Distance	0 mm to 100 mm
Communication Protocol	Digital I2C
Integrated Features	Gesture, Proximity, Color, Ambient Light
Ambient Light Rejection	Built-in
Temperature Range	-40°C to 85°C
Package Type	Compact Optical Module

Gesture Detection

This feature in PeeCee acts as your personal motion tracker, expertly detecting the motion of your hands. Using four directional photodiodes, it senses reflected IR energy to identify gestures like up, down, left, and right with precision. Beyond basic gestures, it can even interpret complex patterns, such as circular motions.

The Key features include:

• Ambient light subtraction for enhanced accuracy.
• Crosstalk cancellation to ignore unwanted reflections.
• Power-saving inter-conversion delay, so it does not consume power while idle.
• 32-dataset FIFO storage for seamless data handling.

With pre-programmed IR LED timing, it adapts to various environmental conditions, ensuring smooth motion detection whether in a brightly lit room or a shadowy corner.

Proximity Detection

The proximity detection sensor in PeeCee knows exactly when you’re near it. It measures distance by analyzing the intensity of reflected IR light emitted by its integrated LED, enabling precise recognition of how close you are to the device.

The Key features include:

• Offset compensation registers to reduce inaccuracies caused by system IR reflections.
• Interrupt-driven events for instant response to proximity changes.
• Trimmed IR LED intensity, so calibration is not needed.

Whether it is measuring the distance to your hand or triggering automated actions, this sensor always gives precise, reliable measurements.

Colour (RGBC) and Ambient Light Detection

This sensor does not just see light, it understands it. With the ability to detect and differentiate colours like red, green, blue, and even clear light, this sensor brings vibrant precision to PeeCee. Equipped with UV and IR blocking filters, it ensures accurate colour sensing for any project.

Light Sensor

The light detection sensor in PeeCee is all about smart illumination detection. It not only detects ambient light levels but also works hand-in-hand with the color sensor, analyzing ambient brightness to help optimize power consumption.

The Key Features include:

• High sensitivity for even low-light scenarios.
• IR and UV blocking filters to improve accuracy.

Temperature Sensor

The PeeCee’s temperature sensor is powered by a thermistor. It is highly sensitive and capable of accurately detecting and responding to ambient temperature changes. Compactly embedded on the PeeCee board, this sensor ensures real-time temperature monitoring with impressive precision, it’s perfect for any project needing environmental monitoring and temperature data. By sensing temperature through resistance changes, it ensures stability and fast response times. With a wide detection range and dependable performance, this sensor keeps your PeeCee ready for any temperature-sensitive task.

Temperature Sensor Specifications

Specification	Details
Sensor Type	Thermistor
Measurement Range	-40°C to +125°C
Response Time	≤ 10 seconds
Accuracy	± 0.5°C
Operating Voltage	3.3 V
Operating Current	≤ 1 mA
Resistance at 25°C	10 kΩ
Interface	Analog
Temperature Coefficient	Negative

Accelerometer and Gyroscope

The PeeCee incorporates a high-performance accelerometer and gyroscope sensor module to monitor motion and orientation precisely. These sensors work together to measure linear acceleration and angular velocity, enabling applications such as motion tracking and stabilization. With advanced signal processing, this module delivers low noise and high sensitivity. Hence whether you're measuring velocity or creating a self-balancing bot, this sensor provides the necessary accuracy and precision.

Accelerometer Specifications

Specification	Details
Type	3-axis Accelerometer
Measurement Range	±2g, ±4g, ±8g, ± 6g
Axes	3-axis
Sensitivity	Programmable
Noise Density	200 µg/√Hz
Sampling Rate	Digitally programmable
Operating Voltage	3.3 V
Output Data Rate	1 Hz to 800 Hz
Full-Scale Resolution	16 bits
Communication Protocol	I³C, I²C, SPI

Gyroscope Specifications

Specification	Details
Type	3-axis Gyroscope
Measurement Range	± 16°/s to ± 2048°/s
Axes	3-axis
Noise Density	15 mdps/√Hz
Sampling Rate	Digitally programmable
Sensitivity	± 3%
Operating Voltage	3.3 V
Output Data Rate	1 Hz to 800 Hz
Drift Compensation	Embedded in-run calibration
Communication Protocol	I³C, I²C, SPI

Microphone

PeeCee’s microphone sensor is a compact yet powerful sound detection module that captures ambient audio with remarkable clarity. Designed for applications like voice recognition, sound-based commands, and audio monitoring, it seamlessly integrates into the board for efficient and reliable performance. With low power consumption and precise sound sensitivity, this sensor ensures that PeeCee can hear and react to its surroundings effectively for sound-interactive projects.

Microphone Sensor Specifications

Parameter	Specifications
Microphone Type	Digital MEMS Microphone
Operating Voltage	3.3 V
Current Consumption	120 µA
Sensitivity	-42 dB FS ± 3 dB
Signal-to-Noise Ratio	63 dB
Frequency Response	100 Hz to 10 kHz
Output Format	Pulse Density Modulation (PDM)
Directional Pattern	Omnidirectional
Acoustic Overload Point	120 dB

Buzzer

The buzzer used in PeeCee is an active type, typically referred to as an active buzzer because it only requires a DC voltage to produce sound without needing an external oscillator using a built-in oscillator.This makes it highly efficient and easy to integrate into various projects where alert signals or feedback sounds are needed.

Specification	Details
Type	Active Buzzer
Rated Voltage	3 V
Operating Voltage	2 - 5 V
Rated Current	30 mA
Sound Output	80 dB
Resonant Frequency	2300 ± 300 Hz
Operating Temperature	-20 ~ +70 ℃

Touchpads

The touch sensor integrated into PeeCee is a capacitive sensor that allows the device to detect touch inputs based on changes in capacitance when a finger or conductive object comes in contact with the surface. This touch sensor is highly efficient, easy to use, and supports programming, including touch-sensitive and touch-based input projects. It works by measuring the capacitance between electrodes and uses these measurements to determine whether the touch was valid. The sensor can be configured to detect touch through different setups, including a matrix or slider configuration, allowing flexibility in its application.

Software

PeeCee can be coded and controlled using many methods. All these methods are using the PLODE app.

What is the PLODE app?

Plode app and website transform coding and robotics into an exciting and accessible adventure for everyone, whether you’re a curious beginner or a tech enthusiast. With PLODE, you can effortlessly control and program an array of fantastic robots and kits like PeeCee, Roboki, PeeCee v0.1, Zing, Crawl-e, and Klaw.

Methods

Hexa Block Programming: A unique and intuitive block-based coding system tailored for beginners.

Block Programming: Standard block-based coding similar to Scratch, ideal for younger users and beginners.

Flowchart Programming: A visual programming method that uses flowcharts to design logic.

Python Programming: For more advanced users, Python allows for detailed and sophisticated programming.

C Programming: Provides low-level control for advanced users familiar with C language. Note: for detailed explanation on how to use the above methods , visit Plode

Note: for detailed explanation on how to use the above methods , visit Plode

Add- ON's

Enhance PeeCee TED's capabilities with these add-ons:

1. AI-cam

The integration of AI Cam with PeeCee enhances its capabilities by adding advanced visual processing, voice recognition, and environmental awareness. By linking the AI Cam via the auxiliary connector and managing it through the PLODE app, users can turn PeeCee into an interactive, smart assistant. The AI Cam empowers PeeCee to recognize faces, respond to voice commands and detect motion. This transformation elevates PeeCee from a basic computing unit to an intelligent companion capable of dynamic interactions, making it more responsive and engaging.

Visit AI Cam ^[1]

2. Building blocks

One of the standout features of the PeeCee is its compatibility with building blocks, allowing users to combine programming and electronics with physical construction. This makes PeeCee an excellent tool for hands-on projects, where users can create complex systems and structures, enhancing both their creativity and technical skills.By seamlessly combining physical construction with programmable electronics, PeeCee encourages problem-solving and innovation in both beginners and advanced users alike.

FAQs

(FAQs)