The tripod adapter is custom machined from a solid block of aluminum, and provides two standard tripod mounting points with 3/8-16 and light-duty 1/4-20 thread respectively. This allows you to mount the AxiDraw to a tripod, should you have reason to do so.
We would highly recommend using a sturdy tripod with a 3/8-16 connection point and appropriate counterweight (sand bag, lifting weights, etc) to balance the weight of the AxiDraw while in use.
Installation is straightforward, and does not require any tools other than those included with AxiDraw: Remove the existing foot pads from the AxiDraw (either standard or outrigger feet, depending on model) and attach this plate to the captured nuts in the bottom surface of the AxiDraw. For AxiDraw SE/A3 (April 2019 and newer), the tripod adapter attaches directly to tapped holes in the base of the machine.
This heavy-duty tripod adapter is compatible with AxiDraw V3, AxiDraw V3/A3 and AxiDraw V3 XLX. It is also compatible with AxiDraw SE/A3 manufactured in April 2019 and newer.
Specifications
Material: Anodized 6061-T6 aluminum
Size: 3.90 x 2.36 x 0.35 inches (99.1 x 60 x 8.3 mm)
Weight: Approximately 144 g
Mounting hardware: included (four M4x10 high-strength steel mounting screws)
This rigid end effector plate is designed to be in place of the standard AxiDraw pen-lift Z stage, and provides an alternative mounting scheme for mounting various things to the end of the AxiDraw's arm, for applications where greater rigidity is important but the lifting ability of the standard Z stage is not required.
The rigid end effector is custom machined from aluminum, and provides six M3 tapped holes and two M4 tapped holes for mounting what ever it is that you would like to mount to the end of the AxiDraw, to use it as a 2D robot arm. The hole pattern is compatible with the AxiDraw pen clip, so you can, if you like, mount the AxiDraw's pen clip to this end effector.
Installation is straightforward, but requires a Pozidrive PZ2 screwdriver, not included*. Remove the AxiDraw's pen clip, and then remove the pen-lift Z stage by removing two screws with the PZ2 screwdriver. Install the rigid end effector plate in its place, using the two included mounting screws and the PZ2 screwdriver. You may wish to also tie back or fully remove the AxiDraw's cable guides, which normally extend to power the pen-lift stage.
Specifications
Material: Anodized 6061-T6 aluminum
Size: 1.97 x 1.38 x 0.19 inches (50 x 35 x 4.8 mm)
Weight: Approximately 11 g
Mounting hardware: included (Two M4x12 pozidrive-head self-tapping screws)
Compatibility
All AxiDraw V3 family pen plotters
AxiDraw V3/A3
AxiDraw SE/A3
AxiDraw MiniKit models
Extra easel boards for AxiDraw V3/A3 can be used as replacements, or for staging additional workpieces for quickly swapping to the next plot. This set consists of one 11.75 x 17 inch (29.85 x 43.18 cm) hardboard platen with rubber feet attached, plus eight micro binder clips.
PiKVM V3 is an open-source Raspberry Pi-based KVM over IP device. It will help you to manage servers or workstations remotely, whatever the state of the operating system or whether one is installed.
PiKVM V3 allows you to turn on/off or restart your computer, configure the UEFI/BIOS, and even reinstall the OS using the virtual CD-ROM or flash drive. You can use your remote keyboard and mouse or PiKVM can simulate a keyboard, mouse, and a monitor, which are then presented in a web browser as if you were working on a remote system directly.
Features
HDMI Full HD capture based on the TC358743 chip (extra low latency ~100 ms and many features like compression control).
OTG Keyboard & mouse; Mass Storage Drive emulation.
Ability to simulate 'removal and insertion' for USB.
Onboard ATX power control
Onboard fan controller
Real-time clock (RTC)
RJ-45 and USB serial console port (to manage PiKVM OS or to connect with the server).
Optional AVR-based HID (for some rare and strange motherboards whose BIOS doesn't understand the OTG emulated keyboard).
Optional OLED screen to display network status or other desired information.
Ready-made board. No need for soldering or breadboarding.
PiKVM OS – the software is fully open.
Included
PiKVM V3 HAT board for Raspberry Pi 4
USB-C bridge board – to connect the HAT with Pi over USB-C
ATX controller adapter board and wiring – to connect the HAT to the motherboard (if you want to manage power supply through hardware).
2 flat CSI cables
Screws and brass standoffs
Required
Raspberry Pi 4
MicroSD card
USB-C to USB-A cable
HDMI cable
Straight Ethernet cable (for the ATX expansion board connection)
Power supply unit (5.1 V/3 A USB-C, officiel RPi power supply is recommended)
Downloads
User Guide
Images
GitHub
Links
The PiKVM Project and Lessons Learned: Q&A with PiKVM creator and developer Maxim Devaev
PiKVM: Raspberry Pi as a KVM Remote Control
Space, the final frontier, will become more and more popular. The space industry is continually growing and new products and services will be required. Innovation is needed for the development of this industry. Today it is no longer possible to follow all the events in field of space. The space market is growing and activities are increasing, especially the market for small-satellites.
This book wants to help close the gap and encourage electronic engineers to enter into the fascinating field of space electronics. One of the main difficulties is finding people with knowledge of space electronics design. Nowadays companies have to invest a lot of time and resources to instruct electronic engineers with no experience of space. Only a brief and basic introduction of this topic is typically achieved at university in space engineering lectures. Professionals with practical experience and the necessary theoretical knowledge are scarce. Companies from the space sector are searching for staff with knowledge of space electronics.
This book will bring space closer aspiring to the space electronic hobbyists.
Practical Introduction to 3D Modeling from Enclosure to Front Panel
Embedding a vintage component, creating a professional looking home for a circuit board, or even designing a complex apparatus complete with a chassis – these and many other challenges turn into a stimulating pleasure with FreeCAD. Once you have internalized the basic processes, there are virtually no limits to your imagination.
Starting to use a new software is never straightforward – especially with a tool as versatile as FreeCAD. Manageable, but at the same time easily usable individual components provide the starting point in this book. Putting these components together later results in assemblies.
In the FreeCAD universe, a workable trajectory is demonstrated. The described procedure is illustrative so the examples are easily applied to custom tasks. The devices were made by the author and illustrated with photos.
Creating a 3D design is requiring some effort but the initial investment pays off soon. Besides the impressive spatial representation of the projects, the extracted drawings yield a solid base for documentation and production. Extended FreeCAD capabilities like the unfolding of sheet metal parts enormously add to efficiency and pushes models forward into practical assembly.
Soon you will definitely not want to do without FreeCAD!
Example projects with Node-RED, MQTT, WinCC SCADA, Blynk, and ThingSpeak
This comprehensive guide unlocks the power of Modbus TCP/IP communication with Arduino. From the basics of the Modbus protocol right up to full implementation in Arduino projects, the book walks you through the complete process with lucid explanations and practical examples.
Learn how to set up Modbus TCP/IP communication with Arduino for seamless data exchange between devices over a network. Explore different Modbus functions and master reading and writing registers to control your devices remotely. Create Modbus client and server applications to integrate into your Arduino projects, boosting their connectivity and automation level.
With detailed code snippets and illustrations, this guide is perfect for beginners and experienced Arduino enthusiasts alike. Whether you‘re a hobbyist looking to expand your skills or a professional seeking to implement Modbus TCP/IP communication in your projects, this book provides all the knowledge you need to harness the full potential of Modbus with Arduino.
Projects covered in the book:
TCP/IP communication between two Arduino Uno boards
Modbus TCP/IP communication within the Node-RED environment
Combining Arduino, Node-RED, and Blynk IoT cloud
Interfacing Modbus TCP/IP with WinCC SCADA to control sensors
Using MQTT protocol with Ethernet/ESP8266
Connecting to ThingSpeak IoT cloud using Ethernet/ESP8266
Analogue Electronics and Microcontrollers Projects
Hobbyist electronics can be a fun way to learn new skills that can be helpful to your career. Those who understand the basics of electronics can design their own circuits and projects. However, before you run, you need to learn to walk.
It all starts with analogue electronics. You should be familiar with the simple components and circuits and understand their basic behaviors and the issues you may encounter. The best way to do this is through real experiments. Theory alone is not enough. This book offers a large number of practical entry-level circuits, with which everyone can gain the basic experience.
Through the widespread introduction of microcontrollers, a new chapter in electronics has begun. Microcontrollers are now performing more and more tasks that were originally solved using discrete components and conventional ICs. Starting out has become easier and easier thanks to platforms including Bascom, Arduino, micro:bit. The book introduces numerous manageable microcontroller applications. It’s now a case of less soldering and more programming.
Program and build Arduino-based ham station utilities, tools, and instruments
In addition to a detailed introduction to the exciting world of the Arduino microcontroller and its many variants, this book introduces you to the shields, modules, and components you can connect to the Arduino. Many of these components are discussed in detail and used in the projects included in this book to help you understand how these components can be incorporated into your own Arduino projects. Emphasis has been placed on designing and creating a wide range of amateur radio-related projects that can easily be built in just a few days.
This book is written for ham radio operators and Arduino enthusiasts of all skill levels, and includes discussions about the tools, construction methods, and troubleshooting techniques used in creating amateur radio-related Arduino projects. The book teaches you how to create feature-rich Arduino-based projects, with the goal of helping you to advance beyond this book, and design and build your own ham radio Arduino projects.
In addition, this book describes in detail the design, construction, programming, and operation of the following projects:
CW Beacon and Foxhunt Keyer
Mini Weather Station
RF Probe with LED Bar Graph
DTMF Tone Encoder
DTMF Tone Decoder
Waveform Generator
Auto Power On/Off
Bluetooth CW Keyer
Station Power Monitor
AC Current Monitor
This book assumes a basic knowledge of electronics and circuit construction. Basic knowledge of how to program the Arduino using its IDE will also be beneficial.
The Raspberry Pi is a $35 credit-card sized computer with many applications, such as in desktop computing, audio and video playback, and as a controller in many industrial, commercial and domestic applications.
This book is about the Raspberry Pi computer and its use in control applications. The book explains in simple terms, with examples, how to configure the RPi, how to install and use the Linux operating system, how to write programs using the Python programming language and how to develop hardware based projects.
The book starts with an introduction to the Raspberry Pi computer and covers the topics of purchasing all the necessary equipment and installing/using the Linux operating system in command mode. Use of the user-friendly graphical desktop operating environment is explained using example applications. The RPi network interface is explained in simple steps and demonstrates how the computer can be accessed remotely from a desktop or a laptop computer.
The remaining parts of the book cover the Python programming language, hardware development tools, hardware interface details, and RPi based hardware projects. All the 23 projects given in the book have been tested and are working.
The following headings are given for each project:
Project title
Project description
Project block diagram
Project circuit diagram
Project program description using the Program Description Language (PDL)
Complete program listing
Description of the program
The book is ideal for self-study, and is intended for electronic/electrical engineering students, practising engineers, research students, and hobbyists.
Program and build RPi Pico-based ham station utilities, tools, and instruments
Although much classical HF and mobile equipment is still in use by large numbers of amateurs, the use of computers and digital techniques has now become very popular among amateur radio operators. Nowadays, anyone can purchase a €5 Raspberry Pi Pico microcontroller board and develop many amateur radio projects using the “Pico” and some external components. This book is aimed at amateur radio enthusiasts, Electronic Engineering students, and anyone interested in learning to use the Raspberry Pi Pico to shape their electronic projects. The book is suitable for beginners in electronics as well as for those with wide experience.
Step-by-step installation of the MicroPython programming environment is described. Some knowledge of the Python programming language is helpful to be able to comprehend and modify the projects given in the book. The book introduces the Raspberry Pi Pico and gives examples of many general-purpose, software-only projects that familiarize the reader with the Python programming language. In addition to the software-only projects tailored to the amateur radio operator, Chapter 6 in particular presents over 36 hardware-based projects for “hams”, including:
Station mains power on/off control
Radio station clock
GPS based station geographical coordinates
Radio station temperature and humidity
Various waveform generation methods using software and hardware (DDS)
Frequency counter
Voltmeter / ammeter / ohmmeter / capacitance meter
RF meter and RF attenuators
Morse code exercisers
RadioStation Click board
Raspberry Pi Pico based FM radio
Using Bluetooth and Wi-Fi with Raspberry Pi Pico
Radio station security with RFID
Audio amplifier module with rotary encoder volume control
Morse decoder
Using the FS1000A TX-RX modules to communicate with Arduino
