Circuit Cellar - Inspiring the Evolution of Embedded Design

Custom Power Converters for an Electric Vehicle Cornell EV Team Design Most modern electronics use power converters to operate properly. Learn how this Cornell Electric Vehicles (EV) project team member designed several highly efficient converters to power the team’s competition EV. The design blends efficiency with environmental friendliness. Topics Discussed What does a power converter do?How ...CLICK TO READ MORE https://lnkd.in/ekcyagSp #Custompower #ElectricVehicle #LithiumionpolymerLiPo #Powerconverter

Impedance Matching Fundamentals Robert had to troubleshoot an impedance matching issue for a customer. That experience was the impetus for him to dig deeper into the subject and to write this primer on impedance matching fundamentals. Welcome back to the Darker Side. Albert Einstein claimed: “Most of the fundamental ideas of science are essentially simple, and may, as a rule, be expressed in a language comprehensible to everyone.” I’m ...CLICK TO READ MORE https://lnkd.in/g_fHeGRn #AC #impedancematching

A DIY PCR Cycling Unit? PCR testing became a household word during the Covid-19 epidemic but Brian built an instrument 30 years ago for a university Chemistry department on a budget. He updates the design here with an ESP32, H-Bridge motor controller, and an LCD panel Tech Used ESP32 H-Bridge motor controller module LCD Arduino IDE Companies Mentioned Cytron

A Guide to Using #Transistors As a Switch and More There’s a lot you can do with electronics these days without any EE-level of knowledge. But certain concepts can be tricky—like selecting a transistor for a high-current or high-voltage design. In this article, Jeff steps through the history of the transistor as a device. He then guides you on how to select and use a transistor as a switch or for other functions. Topics ...CLICK TO READ MORE https://lnkd.in/gFht7Z8f #LEDs #semiconductors #transistorswitch

Build IoT Secure Apps with AWS Services AWS IoT EduKit Overview AWS IoT EduKit helps students and experienced professionals to build IoT applications by simplifying hardware selection and supporting a wide range of software frameworks. Topics Discussed What is the AWS IoT EduKit learning program?How does the cloud connect to Blinky?How does the AWS IoT Core ...CLICK TO READ MORE https://lnkd.in/g6kn5PWt #AWSIoT #AWSIoTCore #Blinky #Core2ESP32 #IoTDevelopmentKit #IoTEduKit #MicrochipATECC608B #SmartThermostat

#Debugging #Embedded Real-Time Systems (Part 2) Bugs of Time This month, Bob continues this series by identifying specific types of errors in our code which he calls "bugs of time." Part of identifying these #bugs is knowing what to look for. Identifying these bugs is the first step in ridding our systems of ...CLICK TO READ MORE https://lnkd.in/eWbdk7UV #Deadlock #FragmentedDynamicMemory #GNUCLibrary #GNUtool #Memoryleak #Nonresidentfunction #Nonthreadsafefunction #Priorityinversion #Racecondition #RealTimeSystems

Rebuild Ni-Cd Battery Packs for Power Tools When the Battery No Longer Holds a Charge, Just Replace the Cells There are myriad Ni-Cd battery-powered tools and devices, but their batteries don’t last forever, and new batteries often cost more than the tools. But don’t pitch that tool! Many battery packs can be ...CLICK TO READ MORE https://lnkd.in/eTDxCTvE #BatteryCellReplacement #BatteryRebuild #BatteryRepair #NiCd #NiCdBatteryPack #NiCdRebuild #PowerToolBatteries #PowerTools #SaveOnBatteries #SubCNiCdCells

Technologies for Digital #Signage Realistic Representation with Digital Signage Digital signage technologies are providing a social view of digitalization. Embedded hardware and software make it easy to develop better digital signage solutions that can deliver a more effective and ...CLICK TO READ MORE https://lnkd.in/eZBbaTuk #Contentmanagementsystem #Digitalboard #Digitalcalendar #Digitalframe #Digitalmenu #Digitalposter #digitalsignage #Embeddedsignagesystems #Signagesystems #Smartrearview #Variablemessagesign

Breaking the Loop with Fault Injection A Simple Experiment on an Embedded System's Code A simple demo of fault injection attacks often seems “too good to be true.” In this article, Colin has demonstrated why simple fault injection attacks that break out of infinite loops are still a threat for bootloaders, and how you can experiment with this on your own code. Topics Discussed How does fault ...CLICK TO READ MORE https://lnkd.in/euy7ntSd #ARMGCC #Compilerexplorer #EMFIfaults #FaultInjection #Flipflops

Revisiting Code Readout Protection Claims Take a look at a specific device that relied on an older #STM32F1 device to store sensitive security keys. We recreate existing work showing the vulnerability and then look at how we could make the system more secure. Topics Discussed How much should trust a generic microcontroller?How could make the system more secure?How does code ...CLICK TO READ MORE https://lnkd.in/df-fE6-P #ChipWhisperer #ChipWhispererHusky #Codereadprotection #RaspberryPiPico #SAMAV3 #UARTcommands