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Controlling BK Precision 1697 Power Supply automation
Features Modern GUI: A clean and intuitive user interface built using the customtkinter library, providing a cross-platform experience. Serial Communication: Manages connections to the power supply, automatically detecting available serial ports using the pyserial library. Manual Control: Allows users to set the output voltage and current with a few clicks. Automated Cycling: Executes timed on/off…
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Controlling Phidget 0/0/4 Relay with Python
I have develop a Python GUI application for controlling the PhidgetInterfaceKit 0/0/4 relay board.This tool provides both manual relay toggling and automated on/off timing control with counters and time tracking. You can find my code here: GitHub Features Control up to 4 relays from a single window. Manual toggle: switch any relay ON/OFF with a…
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Zebra Label Printer with Python
This project presents a robust and user-friendly Zebra Label Printer application, developed using Python and the Tkinter GUI library. Designed for efficiency in manufacturing and logistics environments, this tool streamlines the process of generating and printing ZPL (Zebra Programming Language) labels containing critical product information, including serial numbers and QR codes. You can find my…
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uEye XS Vision Tester
A Python-based inspection tool for IDS uEye XS cameras, designed for production-line visual testing of devices such as 7-segment LCDs or mechanical indicators.It allows the operator to define a Region of Interest (ROI), capture a reference set of images, and automatically detect differences in live video to give a PASS/FAIL result. You can find my…
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Controlling Picoscope 2204A with python
Controlling Picoscope 2204A with python This is a modern, cross-platform desktop application that simulates a multi-channel oscilloscope. Built with customtkinter for a dark, professional user interface and matplotlib for real-time waveform visualization, this tool serves as an excellent educational and simulation platform for electronics and signal processing. It is designed to be highly responsive, allowing…
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3 Channel Simulated Oscilloscope Python
A modern, multi-channel simulated oscilloscope application built with Python. This project provides a graphical user interface (GUI) for generating and visualizing various waveforms while displaying real-time signal measurements. It’s a perfect tool for students, hobbyists, or anyone needing a simple yet powerful way to explore signal theory without physical hardware. The application leverages the customtkinter…
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Dry Transducer Tester Development
Development of a New Dry Transducer Tester I developed a tester that verifies the functionality of transducers designed to operate with water between them, but does so in a completely dry environment. Until now, these transducers (typically supplied by manufacturers like Audiowell or CTS) arrived pre-tested, but as part of our incoming inspection process, we…
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DFM in Electronics
Design for Manufacturability (DFM) in Electronics Introduction Design for Manufacturability (DFM) is a crucial aspect of electronic product design that ensures a circuit board or electronic system is optimized for efficient, cost-effective, and high-quality manufacturing. By considering manufacturability early in the design phase, engineers can minimize production defects, reduce costs, and improve overall product reliability.…
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PCBA Debugging Techniques
Debugging is a critical part of electronics engineering that ensures a circuit works as expected, efficiently, and reliably. Without proper debugging, designs can fail, leading to wasted time, money, and even safety hazards. 1. Visual Inspection Check for obvious issues before testing with tools. Look for damaged components (burn marks, bulging capacitors, broken traces). Check…
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N6705C DC Power Analyzer
A DC Power Analyzer is a powerful instrument used for measuring, analyzing, and characterizing DC power in electronic circuits and systems. It is commonly used in power electronics, battery testing, power supply design, and energy efficiency analysis. I am using the Keysight N6705C DC Power Analyzer in my job for precise power measurement, analysis, and…
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Solved: RF Probe touching TP problem
One of the challenges in testing with probes is accuracy. The level of accuracy during testing significantly impacts the final test results and plays a crucial role in determining the quality of the product produced. I was tasked with resolving an ongoing issue with a test device, where many PCBAs consistently failed transmission testing, but…
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Failure Investigation – Antenna Soldering Problem
In this post, I will share my findings from a successful failure investigation of meter designed to transmit information. I was tasked with investigating the source of the fault and identifying the root cause in order to characterize the type of failure – whether in the PCBA circuit, at the component level, in the antenna,…
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Improving Tester & Testing Process
I was tasked with enhancing the testing process for both mechanical components and PCBA units. Previously, the testing procedure lacked consistency and clarity, leading to suboptimal quality assessments. The process was time-consuming and not operator friendly, and there was uncertainty regarding the criteria for defining a unit as either PASS or FAIL. My objective was…
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NPI: DFT
NPI DFT stands for New Product Introduction Design for Testability. This concept focuses on integrating testability into the product design process during the New Product Introduction (NPI) phase. Here’s a breakdown: NPI (New Product Introduction): This is the process of bringing a new product from concept to market, involving stages like design, development, prototyping, and…
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NPI: DFX
NPI DFX typically refers to NPI Design for Excellence (DFX) in the context of product development and manufacturing. Here’s a breakdown of what this means: NPI (New Product Introduction): This is the process of bringing a new product to market, starting from the concept phase, through design and prototyping, to production. It involves coordinating various…
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First Pass Yield (FPY)
First Pass Yield (FPY) is a key manufacturing metric that measures the efficiency and quality of a production process. It represents the percentage of products that pass through a process step without requiring rework or repairs. A high FPY indicates an efficient and high-quality process, while a low FPY suggests issues with defects or inefficiencies…
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A3 problem solving
A3 Problem-Solving A3 Problem-Solving is a structured, Lean-based approach to identifying, analyzing, and resolving issues efficiently. It uses a one-page A3 report to define the problem, analyze root causes, develop solutions, and track implementation. This method promotes clear communication, teamwork, and continuous improvement in problem resolution. The A3 Problem-Solving method follows a structured approach based…
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Process Capability Index (Cp/Cpk)
Cp (Process Capability) is a measure of how well a process can produce output within given specification limits, assuming it is perfectly centered. It compares the spread of the process variation (6σ) to the allowable tolerance range (USL – LSL). Cp (Process Capability): Measures the potential capability of a process assuming it is centered within…
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Building an RF Chamber for Experiments and Testing
As part of my job, I designed and built an RF chamber to conduct independent experiments and testing, focusing on determining transmission (Tx) and reception (Rx) power. The chamber provides a controlled environment, minimizing external interference and ensuring accurate measurements. This setup allows for precise performance evaluation of RF components, optimizing system efficiency and reliability.…
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My Test jig for PCBA development
I was tasked with developing a comprehensive testing solution for printed circuit board assemblies (PCBA) that are returned from the field for reuse. The objective was to create a robust and efficient tester capable of thoroughly assessing the functionality and integrity of these cards before they are put back into service. The tester definition and…
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RF Anechoic Chamber
An RF Anechoic Chamber is used to test and measure radio frequency (RF) performance of devices in a controlled environment. The chamber is lined with RF-absorbing materials to eliminate reflections and external interference, creating a free-space condition for accurate measurements. Common Tests in an RF Anechoic Chamber: Antenna Testing Radiation pattern (directionality) Gain and efficiency…
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Failure Mode and Effects Analysis (FMEA)
I rely on Process Failure Modes and Effects Analysis (PFMEA) to stay ahead of potential risks in manufacturing and design. This method allows me to break down processes, identify where things could go wrong, and take action before issues arise. By systematically analyzing failure modes, their causes, and their impact, I ensure that processes are…
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Battery Impedance Meter
Recently, I had the opportunity to work with a battery impedance meter (KIKUSUI BIM1030), a vital tool in my failure investigations at work. Its primary use is to check the health of special capacitors (HLC) and batteries in our company’s devices. The tool’s ability to measure internal resistance and assess performance makes it indispensable for…
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Traffic Light Controlled with Arduino Nano
In this project, I created a simple traffic light system using an Arduino Nano and three LEDs (red, yellow, and green) controlled by a button. The system simulates a basic traffic light sequence, with the green light as the default. When the button is pressed, the green light flashes three times before transitioning to yellow…
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Controlling an 8-Channel Relay with Arduino Nano
In this guide, I’ll walk you through controlling an 8-channel relay using an Arduino Nano. This setup is great for automating multiple devices or systems, such as home automation, robotics, or industrial applications where switching multiple components is essential. What You’ll Need: Arduino Nano 8-channel relay module Jumper wires Power supply for the relay module…
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PCBA Electronic Tester Analysis
In the world of electronics testing, accuracy and reliability are crucial. I recently encountered an issue with our testing setup where an Ingun probe did not make proper contact with a via on the printed circuit board assembly (PCBA). This resulted in inconsistent test results and wasted time. In this post, I’ll share how we…
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Low-Dropout Voltage Regulator
A Low-Dropout Regulator (LDO) is a type of voltage regulator that provides a stable output voltage even when the input voltage is only slightly higher than the desired output voltage. The term “low-dropout” refers to the minimal difference, or “dropout voltage,” between the input and output voltages required for the regulator to function properly. Key…
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IDC 30-Pin Connector Breakout Board
IDC stands for Insulation-Displacement Connector. An IDC Connector Breakout Board is a small circuit board that allows easy access to the individual pins of an IDC (Insulation-Displacement Connector). The IDC connector on the board is typically attached to a ribbon cable, and the breakout board “breaks out” each wire from the ribbon cable to separate,…
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New-Tech Exhibition 2024
What is New-Tech exhibition? New-Tech Events (part of New-Tech Magazines Group) is Israel’s foremost organizer of hi-tech trade events, fairs, conventions and exhibitions. Our high-profile, accurately targeted events attract large professional crowds and provide a convenient, friendly business environment where many new transactions are generated. Our well-attended events are designed to serve the interests of…
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How to Send ZPL Commands to a Zebra GK420t Printer
In this tutorial, I will explain how to send ZPL commands to a Zebra GK420t printer to make it standalone, walk through the process of creating labels step by step. What needed: Zebra printer, in this case its the Zebra GK420t with COM port. Zebra barcode scanner, Im using the Zebra DS46 series. Part 1) …
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WatchGaurd – FPGA Controlled Robot with IoT Connectivity
The project I built is a remotely controlled security robot equipped with the ability to transmit images, serving as an efficient and innovative tool for security systems. The ability to control the robot remotely allows for quick and efficient action, with security personnel able to establish an immediate response to events in real-time. The robot…
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How to calculate wire gauge (AWG) needed
To calculate the American Wire Gauge (AWG) size you need for a specific application, you’ll typically consider the maximum current the wire will carry and the maximum acceptable voltage drop. Determine the maximum current: This is the maximum continuous current the wire will need to carry. You can find this information in the equipment specifications…
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DC-DC Boost Converter
A DC-DC boost converter is a type of power converter that steps up (boosts) a DC voltage to a higher level. It is useful in applications where a higher voltage level is required than what is available from the input source. The boost converter typically consists of an inductor, a switch (usually a transistor), a…
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DC-DC Buck Converter
A DC-DC buck regulator is a type of voltage regulator that steps down a higher voltage to a lower voltage. The buck regulator operates by controlling the duty cycle of a switching transistor to regulate the output voltage. It is called a “buck” regulator because the output voltage is lower than the input voltage, and…
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Voltage Regulator LM7805
The LM7805 is a popular voltage regulator integrated circuit that provides a stable 5 volts output voltage from an input voltage source that can be higher than 5 volts. It is part of the 78xx series of voltage regulators produced by various manufacturers. Schematic The manufacturer advises incorporating capacitors both on the input and output…
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ATtiny85 Digispark USB
The ATtiny85 Digispark USB is a small, programmable microcontroller board based on the ATtiny85 chip. It’s notable for its compact size and USB connectivity, making it suitable for various embedded projects where space and simplicity are key. Schematic PCB Layout 3D Model What are the special considerations in planning a ATtiny85 Digispark USB circuit? Power…