The Arduino Pro Mini is a microcontroller board based on the ATmega328P.
It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, an on-board resonator, a reset button, and holes for mounting pin headers. A six pin header can be connected to an FTDI cable or SparkFun breakout board to provide USB power and communication to the board.
The Arduino Pro Mini is intended for semi-permanent installation in objects or exhibitions. The board comes without pre-mounted headers, allowing the use of various types of connectors or direct soldering of wires. The pin layout is compatible with the Arduino Mini.
The Arduino Pro Mini was designed and is manufactured by SparkFun Electronics.
Specifications
Microcontroller
ATmega328P
Board Power Supply
5-12 V
Circuit Operating Voltage
5 V
Digital I/O Pins
14
PWM Pins
6
UART
1
SPI
1
I²C
1
Analog Input Pins
6
External Interrupts
2
DC Current per I/O Pin
40 mA
Flash Memory
32 KB of which 2 KB used by bootloader
SRAM
2 KB
EEPROM
1 KB
Clock Speed
16 MHz
Dimensions
18 x 33.3 mm (0.7 x 1.3")
Downloads
Eagle files
Schematics
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
This USB Stick contains more than 300 Arduino-related articles published in Elektor Magazine. The content includes both background articles and projects on the following topics:
Software & hardware development: Tutorials on Arduino software development using Arduino IDE, Atmel Studio, Shields, and essential programming concepts.
Learning: The Microcontroller Bootcamp offers a structured approach to programming embedded systems.
Data acquisition & measurement: Projects such as a 16-bit data logger, lathe tachometer, and an AC grid analyzer for capturing and analyzing real-time signals.
Wireless communication: Learn how to implement wireless networks, create an Android interface, and communicate effectively with microcontrollers.
Robotics and automation: This covers the Arduino Nano Robot Controller, supporting boards for automation, and explores various Arduino shields to enhance functionality.
Self-build projects: Unique projects such as laser projection, Numitron clock and thermometer, ELF receiver, Theremino, and touch LED interfaces highlight creative applications.
Whether you're a beginner or an experienced maker, this collection is a valuable resource for learning, experimenting, and pushing the boundaries of Arduino technology.
Functionality, structure and handling of a power module
For readers with first steps in power management the “Abc of Power Modules” contains the basic principles necessary for the selection and use of a power module. The book describes the technical relationships and parameters related to power modules and the basis for calculation and measurement techniques.
Contents
Basics
This chapter describes the need of a DC/DC voltage converter and its basic functionality. Furthermore, various possibilities for realizing a voltage regulator are presented and the essential advantages of a power module are mentioned.
Circuit topologies
Circuit concepts, buck and boost topologies very frequently used with power modules are explained in detail and further circuit topologies are introduced.
Technology, construction and regulation technology
The mechanical construction of a power module is presented, which has a significant influence on EMC and thermal performance. Furthermore, control methods are explained and circuit design tips are provided in this chapter.
Measuring methods
Meaningful measurement results are absolutely necessary to assess a power module. The relevant measurement points and measurement methods are described in this chapter.
Handling
The aspects of storage and handling of power modules are explained, as well as their manufacturing and soldering processes.
Selection of a power modules
Important parameters and criteria for the optimal selection of a power module are presented in this section.
The Smart USB Soldering Iron Kit is a compact, cordless solution designed for precision and portability. Featuring intelligent three-speed temperature control (300-450°C) with an easy-to-read LED display, it heats up in just 10 seconds and melts solder in as little as 6 seconds.
The 1000 mAh rechargeable battery delivers up to 30 minutes of continuous use, making it ideal for quick repairs, electronics projects, and DIY tasks. With a plug-and-play, replaceable tip and a high-temperature-resistant insulated shell, it’s safe, user-friendly, and perfect for both beginners and professionals on the go.
Features
Three-Speed Intelligent Temperature Adjustment: Features an LED display screen with adjustable temperatures between 300-450°C (572-842°F). Easily switch between Celsius and Fahrenheit.
Integrated Plug-In Soldering Iron Tip: Plug-and-play design. The tip can be replaced by simply unscrewing it, ensuring quick and convenient operation.
Safe and Durable Design: High-temperature-resistant, insulated shell for enhanced safety during use.
Battery Capacity: Equipped with a rechargeable 1000 mAh battery that supports up to 30 minutes of continuous operation on a full charge – ideal for everyday tasks.
Efficient Performance: 8 W power with an integrated heating core for rapid heat-up. Melts tin in just 6 seconds, providing excellent thermal conductivity.
Easy to Use: After powering on via USB, set your desired temperature. The soldering iron heats up in 10 seconds. Once finished, place the tip on the stand—it cools down within 1 minute. Perfect for beginners, hobbyists, basic home repairs, and training engineers.
Cordless Innovation: This cordless soldering kit includes a built-in rechargeable lithium-ion battery, eliminating the need for cables. Versatile use for circuit board soldering, electrical repairs, jewelry making, metal crafts, computer maintenance, and DIY projects.
Specifications
Adjustable Temperature: 300-450°C (572-842°F)
Tin Melting Time: <15 seconds
Working Voltage: 5 V
Power Output: 8 W
Battery Capacity: 1000 mAh
Auto Sleep Function: Activates after 10 minutes of inactivity
Charging Time: Approx. 90 minutes
Battery Life: Up to 30 minutes continuous use
Charging Interface: USB-C
Main Material: Aluminum alloy
Dimensions: 190 x 16 mm (7.4 x 0.6")
Included
1x USB Soldering Iron
1x Soldering Tip
1x Soldering Rosin
1x Soldering Iron Holder (with Sponge)
1x USB-C Charging Cable
1x Solder Wire
1x Storage Box
This USB stick holds a selection of more than 350 articles on RF, Radio and Communication published in Elektor Magazine. The content consists of both background articles and projects with the following topics:
Basic radio-related circuits as well as more complex circuits like filters, oscillators, and amplifiers.
Design, construction, and theory of antennas for transmitting and receiving radio signals efficiently.
Design and analysis of RF circuits including filters, mixers, PLLs, and frequency synthesizers. Tools and techniques for predicting radio wave propagation paths and measuring RF signal strength.
Techniques for processing digital signals in RF systems, including modulation and demodulation methods.
Projects on radio receivers, AM, FM, SSB, CW, DRM, DAB, DAB+, Software Defined Radio, and more.
Projects on Wi-Fi, Bluetooth, LoRaWAN, and more.
You can use the article search function to locate specific content in the full text. The results are always shown as preformatted PDF documents. You can use Adobe Reader to browse articles, and you can use Adobe Reader’s integrated search functions to find instances of individual words and expressions.
Jan Didden created Linear Audio in 2010 and published 14 Volumes between 2010 and 2017. Each 200-page Volume contains on average 10 articles by expert authors in the field of audio, acoustics, and instrumentation. Whether you are interested in tube amplifiers, solid-state equipment, loudspeaker design, capacitor and resistor distortion or distortion measurement, you are certain to find helpful advice and interesting discussions. From beginner to advanced level, for the audio professional or the serious hobbyist, this ExpertCollection will advance your understanding and offer new perspectives on common issues.
Bonus material included with this collection is a 5-part YouTube series on negative feedback as applied to audio by renowned author Jan Didden, and nine additional landmark audio articles and presentations.
If you are seriously interested in audio, acoustics, and instrumentation, you can’t afford to miss this! The published material is indexed and fully searchable and will provide an almost limitless resource for many years to come.
You can read about Linear Audio’s authors, and the Table of Contents of each Volume, at linearaudio.net.
The FNIRSI FNB58 USB tester (with Bluetooth) is a comprehensive and very accurate USB voltage and current meter. It features a 2.0-inch full-color HD TFT display, built-in USB-A, micro USB and USB-C interface. With this device you can measure the power supply or power consumption of products or the charging power of cell phones and power supplies. You can also determine the fast charging protocol of chargers.
Features
USB-A and USB-C interface
2.0" HD display
Data at a glance
Wide compatibility
Ultra-precise data detection
Play with fast charging technology
Automatic protocol detection (PD2.0, 3.0, 3.1, PPS, QC2.0, 3.0, FCP, SCP, AFC, PE, DASH VOOC, SuperVOOC and more)
Simple user interface, easy to operate
4 function curve displays (real-time voltage and current curve, offline curve recording, D+/D- voltage curve, high-speed power supply ripple measurement)
Cable detection
10 groups of energy recording battery capacity calculation
PC connectivity for data logging and firmware updates
Bluetooth app for Android devices
Specifications
Voltage range
4-28 V
Current range
0-7 A
Power range
0-120 W
Load equivalent internal resistance
0-9999.9 Ω
D+/D- voltage
0-3.3 V
Capacity
0-9999.99 Ah
Power consumption
0-9999.99 Wh
Cable resistance
0-9999.9 Ω
Interfaces
micro USB, USB-A, USB-C
Dimensions
42 x 13 x 82 mm
Downloads
Manual
Firmware V0.68
More than 275 Power Supply Designs for Home Construction
This USB Stick contains over 275 different power supply circuits from the volumes 2001-2025 of Elektor. The article search feature allows you to search full-text content. The results are always displayed as pre-formatted PDF documents.
Highlights
Cuk Converter
Automatic Battery Switchover
Battery Voltage LED
Digital Benchtop Power Supply
Lithium-Ion Charger
Solar Cell Charger
Electronic Fuse
High Voltage Regulator
Power Supply for USB Devices
Step-up Converter for LEDs
Battery Management
and much more...
On the Stick you will also find a folder with additional material such as PCB layouts, Gerber files and software.
Specifications
Storage
16 GB
Interfaces
1x USB-A1x USB-C
System requirements
PC with Adobe Reader 7.0 or higher
Web browser
Now you can connect your Arduino boards with the official Arduino USB cable. Through a USB-C to USB-C with a USB-A adapter connection, this data USB cable can easily connect your Arduino boards with your chosen programming device. The Arduino USB cable has a nylon braided jacket in the typical Arduino colors white and teal. The connectors have an aluminum shell that protects your cable from harm at the same time as looking cool. Length: 100 cm Aluminium shell with logo Nylon braided jacket white and teal
With this 65 W USB-C PD power supply (with GaN technology) you can start using the FNIRSI HS-01 soldering iron straight away. Of course, you can also use this charger to fast charge your tablets and smartphones via USB-C and USB-A.
Included
65 W USB-C PD GaN Power Supply (EU)
,
by Jean-François Simon
Fnirsi FNB58 USB Tester (Review)
The Fnirsi FNB58 is a versatile USB tester capable of performing a wide array of voltage, current, and energy measurements, as well as supporting numerous...