TurtleBot 4 is the next-generation of the world’s most popular open source robotics platform for education and research, offering better computing power, better sensors and a world class user experience at an affordable price point.TurtleBot 4 Lite is equipped with an iRobot Create 3 mobile base, a powerful Raspberry Pi 4 running ROS 2, OAK-D spatial AI stereo camera, 2D LiDAR and more. All components have been seamlessly integrated to deliver an out-of-the-box development and learning platform.Specifications
Base platform
iRobot Create 3
Wheels (Diameter)
72 mm
Ground Clearance
4.5 mm
On-board Computer
Raspberry Pi 4 (4 GB)
Maximum linear velocity
0.31 m/s in safe mode0.46 m/s without safe mode
Maximum angular velocity
1.90 rad/s
Maximum payload
9 kg
Operation time
2h 30m – 4h depending on load
Charging time
2h 30m
Lidar
RPLIDAR A1M8
Camera
OAK-D-Lite
User Power
VBAT @1.9 A5 V @ Low current3.3 V @ Low current
USB Expansion
2x USB 2.0 (Type A)2x USB 3.0 (Type A)
Programmable LEDs
Create 3 Lightring
Buttons and Switches
2x Create 3 User buttons1x Create 3 Power Button
Battery
26 Wh Lithium Ion (14.4 V nominal)
Charging Dock
Included
Size (L x W x H)
342 x 339 x 192 mm
Weight
3.3 kg
DownloadsUser Manual
An Ultra-Rapid Programming Course
This book serves as the very first step to for novices to learn Python programming. The book is divided into ten chapters. In the first chapter, readers are introduced to the basics of Python. It has the detailed instructions for installation on various platforms such as macOS, Windows, FreeBSD, and Linux. It also covers the other aspects of Python programming such as IDEs and Package Manager. The second chapter is where the readers get an opportunity to have a detailed hands-on with Python programming. It covers a group of built-in data structures popularly known as Python Collections. The third chapter covers the important concepts of strings, functions, and recursion.
The fourth chapter focuses on the Object-Oriented Programming with Python. The fifth chapter discusses most commonly used custom data structures such as stack and queue. The sixth chapter spurs the creativity of the readers with Python’s Turtle graphics library. The seventh chapter explores animations and game development using the Pygame library. The eighth chapter covers handling data stored in a variety of file formats. The ninth chapter covers the area of Image processing with Wand library in Python. The tenth and the final chapter presents an array of assorted handy topics in Python.
The entire book follows a step-by-step approach. The explanation of the topic is always followed by a detailed code example. The code examples are also explained in suitable detail and they are followed by the output in the form of text or screenshot wherever possible. Readers will become comfortable with Python programming language by closely following the concepts and the code examples in this book. The book also has references to external resources for readers to explore further.
A download of the software code, and links to tutorial videos can be found on the Elektor website.
This is the second edition of a book aimed at engineers, scientists, and hobbyists who want to interface PCs with hardware projects using graphical user interfaces. Desktop and web-based applications are covered.
The programming language used is Python 3, which is one of the most popular languages around: speed of programming being a key feature. The book has been revised and updated with an emphasis on getting the user to produce practical designs with ease – a text editor is all that is required to produce Python programs.
Hardware interfacing is achieved using an Arduino Uno as a remote slave. A full description and source code of the communication interface is given in the book. The slave provides digital and analog input and outputs. Multiple Unos can be included in one project with all control code written in Python and running on a PC One project involves a PIC microcontroller with the code provided that can be loaded into the PIC using the Uno.
The web applications and server are all implemented in Python, allowing you to access your electronic hardware over the Internet. The Raspberry Pi computer can be used as your web server. An introductory chapter is provided to get you started with using Linux.
The book is written for use with Debian or variations including Mint or Ubuntu. All of the programs in the book are freely available, ready to use and experiment with by way of a download from Elektor.
Specifications
Channels: 3
Total Power: 195 Watts
Max. Voltage: 30 Volts
Max. Current: 3 Amps
Low ripple and noise: <350 μVrms/2 mVpp
Excellent linear regulation rate and load regulation rate
Fast transient response time: <50 μs
Some channels are isolated
Standard OVP/OCP/OTP protection functions
Standard timing output
Built-in V,A,W measurements and waveform display
Independent control for each channel
3.5 inch TFT display
Included
1x Rigol DP832 DC Power Supply
1x Power cord
1x USB cable
The OWON ADS900A series is a compact 12-bit digital oscilloscope offering up to 2 GSa/s, 100 Mpts memory, and 125/250 MHz bandwidth. With its 7" multi-touch display, FFT, protocol decoding, and integrated logic analyzer, it delivers precise signal analysis for lab, workshop, and field applications.
Specifications
ADS914A
ADS924A
Bandwidth (-3 dB)
125 MHz
250 MHz
Channels
4
Max. sample rate
2 GSa/s (single-channel) 1 GSa/s (dual-channel) 500 MSa/s (full-channel)
DC Gain Accuracy
3% (≤1 mV)
2% (≥2 mV)
Max memory depth
100M
Vertical resolution
12 bits
Relay time accuracy
±25 ppm (typical)
Input Impedance
1 MΩ±2%, parallel with20 pF±5 pF
Probe Attenuation Coefficient
1.00μX-1M.00X,step by 1-2-5, support custom
Trigger type
Edge, Video, Pulse, Slope, Runt, Windows, Timeout, Nth, Logic, RS232/UART, I²C, SPI CAN, LIN
Bus decoding
RS232/UART, I²C, SPI, CAN, LIN
Auto measurement
Period, Frequency, +Width, -Width, Rise Time, Fall Time, Scr Duty, +Duty,-Duty, Vavg, Vpp, VRMS, Overshoot, Vmax, Vmin, Vtop, CycRms, Vbase, Vamp, Preshoot, Std Dev, +Pulse Cnt, -Pulse Cnt, Rise Cnt, Fall Cnt, Area, Cyc Area, Delay(A↑-B↑), Delay(A↑-B↓), Delay(A↓-B↑), Delay(A↓-B↓), Phase(A↑-B↑)
Phase(A↑-B↓), Phase(A↓-B↑), Phase(A↓-B↓), FRR(A↑-B↑), FRF(A↑-B↓)
FFR(A↓-B↑), FFF(A↓-B↓), LRR(A↑-B↑), LRF(A↑-B↓), LFR(A↓-B↑), LFF(A↓-B↓)
Waveform Math
+, -, *, /, &&, ||, ^, !, Intg, Diff, Sqrt, Function operation (Lg / Ln / Exp / Abs / Sine / Cosine / Tan), FFT, FFT rms, User Defined, digital filter (low pass, high pass, band pass, band reject)
Frequency counter
6-digit frequency counter
Maximum frequency: maximum analog bandwidth of oscilloscope
Voltmeter
Support DC, AC+DCrms, ACrms, Resolution: 4 digits (ACV/DCV)
Logical Analyzer Specifications
Number of channels
16 input channels (D0-D15) (D0 to D7, D8 to D15)
Max. input voltage
±40V peak CAT I, transient overvoltage 800Vpk
Input Impedance
100kΩ, 8 pF
Vertical resolution
1 bit
Other
Communication Interface
HDMI, USB device, USB Host, Trig Out (P/F), LAN
Display
7 inch (1024x600), capacitive multi-touch screen
Power supply interface
USB-C
Dimensions
260 x 160 x 78 mm
Weight
1.5 kg
Included
1x OWON ADS924A Oscilloscope
1x Power Adapter
1x Power Cord
1x USB Cable
1x Probe
1x Quick Guide
Downloads
Manual
Quick Guide
PC Software
The OWON ADS900A series is a compact 12-bit digital oscilloscope offering up to 2 GSa/s, 100 Mpts memory, and 125/250 MHz bandwidth. With its 7" multi-touch display, FFT, protocol decoding, and integrated logic analyzer, it delivers precise signal analysis for lab, workshop, and field applications.
Specifications
ADS914A
ADS924A
Bandwidth (-3 dB)
125 MHz
250 MHz
Channels
4
Max. sample rate
2 GSa/s (single-channel) 1 GSa/s (dual-channel) 500 MSa/s (full-channel)
DC Gain Accuracy
3% (≤1 mV)
2% (≥2 mV)
Max memory depth
100M
Vertical resolution
12 bits
Relay time accuracy
±25 ppm (typical)
Input Impedance
1 MΩ±2%, parallel with20 pF±5 pF
Probe Attenuation Coefficient
1.00μX-1M.00X,step by 1-2-5, support custom
Trigger type
Edge, Video, Pulse, Slope, Runt, Windows, Timeout, Nth, Logic, RS232/UART, I²C, SPI CAN, LIN
Bus decoding
RS232/UART, I²C, SPI, CAN, LIN
Auto measurement
Period, Frequency, +Width, -Width, Rise Time, Fall Time, Scr Duty, +Duty,-Duty, Vavg, Vpp, VRMS, Overshoot, Vmax, Vmin, Vtop, CycRms, Vbase, Vamp, Preshoot, Std Dev, +Pulse Cnt, -Pulse Cnt, Rise Cnt, Fall Cnt, Area, Cyc Area, Delay(A↑-B↑), Delay(A↑-B↓), Delay(A↓-B↑), Delay(A↓-B↓), Phase(A↑-B↑)
Phase(A↑-B↓), Phase(A↓-B↑), Phase(A↓-B↓), FRR(A↑-B↑), FRF(A↑-B↓)
FFR(A↓-B↑), FFF(A↓-B↓), LRR(A↑-B↑), LRF(A↑-B↓), LFR(A↓-B↑), LFF(A↓-B↓)
Waveform Math
+, -, *, /, &&, ||, ^, !, Intg, Diff, Sqrt, Function operation (Lg / Ln / Exp / Abs / Sine / Cosine / Tan), FFT, FFT rms, User Defined, digital filter (low pass, high pass, band pass, band reject)
Frequency counter
6-digit frequency counter
Maximum frequency: maximum analog bandwidth of oscilloscope
Voltmeter
Support DC, AC+DCrms, ACrms, Resolution: 4 digits (ACV/DCV)
Logical Analyzer Specifications
Number of channels
16 input channels (D0-D15) (D0 to D7, D8 to D15)
Max. input voltage
±40V peak CAT I, transient overvoltage 800Vpk
Input Impedance
100kΩ, 8 pF
Vertical resolution
1 bit
Other
Communication Interface
HDMI, USB device, USB Host, Trig Out (P/F), LAN
Display
7 inch (1024x600), capacitive multi-touch screen
Power supply interface
USB-C
Dimensions
260 x 160 x 78 mm
Weight
1.5 kg
Included
1x OWON ADS914A Oscilloscope
1x Power Adapter
1x Power Cord
1x USB Cable
1x Probe
1x Quick Guide
Downloads
Manual
Quick Guide
PC Software
Specifications
Bandwidth: 50 MHz
Analog Channels: 4
Real-time sample rate up to 1 GS/s
Memory depth up to 24 Mpts
Up to 30,000 wfms/s waveform capture rate
Up to 60,000 frames hardware real-time waveform recording and playback functions
Innovative 'UltraVision' technology
Various trigger and bus decoding functions
Low noise floor, vertical scale range: 1 mV/div to 10 V/div
Various interfaces: USB Host&Device, LAN (LXI), AUX
Compact size, light weight, easy to use
7 inch WVGA (800x480) TFT LCD, intensity graded color display
Included
1x Rigol DS1054Z Oscilloscope
1x Power cord
1x USB cable
4x PVP2150 Passive oscilloscope probe (150 MHz)
Designed for overclockers and other power users, this fan keeps your Raspberry Pi 4 at a comfortable operating temperature even under heavy load. The temperature-controlled fan delivers up to 1.4 CFM of airflow over the processor, memory, and power management IC. The bundled heatsink (18 x 8 x 10 mm) with self-adhesive pad improves heat transfer from the processor. The Raspberry Pi 4 Case Fan works with Raspberry Pi 4 and the official Raspberry Pi 4 case.
Specifications
Bandwidth
100 MHz
Sample Rate
100 MS/s
Horizontal Scale (s/div)
5ns/div - 1000s/div, step by 1 - 2 - 5
Channel
4
Display
7" color LCD, 800 x 480 pixels
Input Coupling
DC, AC and GND
Vertical Resolution (A/D)
Vertical Resolution (A/D)
Vertical Sensitivity
5mV/div - 5V/div (at input)
Trigger Type
Edge, Video
Trigger Mode
Auto, Normal and Single
Waveform Math
+, -, x, ÷, invert, FFT
Fuse
2A, T class, 250 V
Dimension (W x H x D)
301 x 152 x 70 mm
Weight
1.1 kg
Included
1 x SDS1104
1 x Mains power cord
1 x CD Rom
1 x Quickstart Guide
1 x USB Cable
4 x Oscilloscope probe
1 x Probe Adjust
For more information, check out the user manual here.
This 'All in One' Raspberry Pi 4 Desktop Starterkit contains all official parts and allows an easy and quick start!
Raspberry Pi 4 Desktop Kit contains:
Raspberry Pi US Keyboard & Mouse
2x micro HDMI to Standard HDMI cable (A/M) 1 m
Raspberry Pi 15.3 W USB-C Power Supply (EU version)
Raspberry Pi 4 Case
Official Raspberry Pi Beginner's Guide (English language)
16 GB NOOBS with Raspbian microSD card
Raspberry Pi 4 B is NOT included.
Learn to use Python productively in real-life scenarios at work and in everyday life
If you have mastered the basics of Python and are wanting to explore the language in more depth, this book is for you. By means of concrete examples used in different applications, the book illustrates many aspects of programming (e.g. algorithms, recursion, data structures) and helps problem-solving strategies. Including general ideas and solutions, the specifics of Python and how these can be practically applied are discussed.
Python 3 for Science and Engineering Applications includes:
practical and goal-oriented learning
basic Python techniques
modern Python 3.6+ including comprehensions, decorators and generators
complete code available online
more than 40 exercises, solutions documented online
no additional packages or installation required, 100% pure
Python Topics cover:
identifying large prime numbers and computing Pi
writing and understanding recursive functions with memorisation
computing in parallel and utilising all system cores
processing text data and encrypting messages
comprehending backtracking and solving Sudokus
analysing and simulating games of chance to develop optimal winning strategies
handling genetic code and generating extremely long palindromes
Downloads
Software
,
by Udo Bormann
Top 4 Elektor Electronics Project Kits for Learning and Skill Development
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