Circuit Break - A MacroFab Podcast

StephenUsing an oscilloscope as a dynamic signal analyzerAnalog scopesParkerGameboy update Code compiles! Quartus II still compiled my Gameboy Project1.25mm? pitch 21 pin. Connectors are hard to find.Custom flexi cable to solve the problem?Should have board laid out next weekArduino ArticleRaspberry pi addon boards are called HATs - Hardware attached on topMissed opportunity for calling them pi plates :(RFOFatberg follow upFirst mentioned on MEP EP#85 Space Engineers VS Caffeinated ChipmunksQHL600/750 Series DC-DC Brick Converters by XP Power600 W or 750 W and are designed for 300 VDC nominal input applications180V to 425V DC input4.60" x 2.40" x 0.50"Ideal for AC input applications with PFC, baseplate cooled ESG solutions and high voltage battery applications such as electric vehiclesFound a 300V capacitor repackaged as 450VHow to test the voltage rating on caps?Have listeners ever purchased counterfeit or fake parts? Let us know!AnnouncementsTwitter Chat Info April 20th Friday at 1PM CSTMeetup Info May 23rd 6PM at MacroFab HQ in HoustonBrandon Satrom from Particle. Going to give a talk about IoT fundamentals.Houston Hardware Happy Hour First Thursday of each monthMay 3rd at SlowpokesBring hacks and hang outTags: Counterfeit Parts, electronics podcast, Fake News Parts, Fatberg, Gameboy VGA Adapter, HAT, MacroFab, macrofab engineering podcast, MEP, Pi Plates, Podcast, QHL600, QHL750

18 Apr 201852min

StephenLM13700Dual Operational Transconductance Amplifiers With Linearizing Diodes and Buffers built by Ti?All passive filterNot just a zero ohm resistor ;)Shift the phaseFixing a Kegerator Kegerator was out of gasR-134AParkerUSB Type C article? Updating old USB 2.0 from MicroUSB to Type C?Going to finish my Gameboy VGA adapter Move to HDMI afterwards?BenHeck Show Giant Game boy runs an early version of the codeRFOAmazon’s in-home delivery service now supports eight smart locks Help avoid porch piratesFTC says “Warranty void if sticker removed” is not validCompanies can't put repair restrictions on their products unless they provide the parts or services for free or receive a waiver from the FTC.regulation for right to repair, is more about the posibility for getting the spareparts, and maybe cutting down on electronics waste.Avoiding side entry to SMT pads?AnnouncementsTwitter Chat Info April 13th Friday at 1PM CSTMeetup Info Parker will discuss Key Parts of an ArduinoTrey German will talk about taking off-shelf enclosures and customizing them. Shout out to @yertnamreg MEP EP#10 and MEP EP#38Houston Hardware Happy Hour First Thursday of each monthMay 3rd at SlowpokesBring hacks and hang outTags: All-Pass Filter, Amazon in home delivery, electronics podcast, FTC, Gameboy VGA Adapter, Knowledge Base, LM13700, MacroFab, macrofab engineering podcast, MEP, Podcast, R-134A, SMT Pads, Thermal twisting, USB Type-C, warranty void stickers

12 Apr 201847min

StephenNasty Analog Oscillations Opamps are drama queens of electronicsSolved the oscillation with a small capacitor in the feedback loop to lower the frequency of the feedbackParkerWaiting on circuit boards to be built for the DAC ArticleReworking the Knowledge Base here at the FAB Suggestions for topics are welcome!RFOVoyager 1 Fires Up Thrusters After 37 YearsTrajectory Correction Maneuver or TCM thrustersTCM's where only used for continuous firing mode and not used to angle the craft which requires controlled burst firingEngineers used decades-old data and examined the software that was coded in an outdated assembler language to figure out how to test the TCMsElectric propulsion coaxial0306 Capacitor Size Odd capacitor sizeSame dimensions as a 0603 but hamburger styleFor reducing the parasitic inductance by shortening the current loops in circuitsAVX product brief on low inductance chip capacitorsA Concise Guide to Ceramic Capacitor TypesCovers the different classes of capacitors“why does Y5V even exist?”Four Levels of project transcendence 5th level is starting a lifetime of projects every month but only abandon them after ordering all the parts and supplies for said projectsAnnouncementsTwitter Chat INFO April 6th Friday at 1PM CSTMeetup Info Parker Key Parts of an ArduinoTrey German will talk about taking off-shelf enclosures and customizing them. Shout out to @yertnamreghttps://twitter.com/yertnamreg?lang=enHouston Hardware Happy Hour First Thursday of each monthMay 3rd at SlowpokesBring hacks and hang out

4 Apr 201845min

StephenAutoDesk Fusion 360Fusion 360 Tutorial by Lars ChristensenParkerGetting the PCM5122 DAC to talk to an ArduinoanalogRead FAST Cuts the number of cycles needed to do an Analog read on the Arduino platformAlbert van Dalen - AVDWEBBeer Brewing Electrical BoxRFOFlat-Earther launches himself into sky in steam-powered rocket"Mad" Mike Hughes350miles an hour~1850 feet upPreviously mentioned on EP #96: I Expect You To be Bored Mr. BondVideo!Ideas for summer projects for studentsTags: Arduino, AutoDesk Fusion 360, AVDWEB, Beer Brewing, electronics podcast, MacroFab, macrofab engineering podcast, Mad Mike Hughes, MEP, PCM5122, Podcast

28 Mars 20181h 1min

Bruce HambyAttorney with the Hamby Law FirmThe Hamby Law Firm focuses on patents, intellectual property, trademarks and business lawHas been an attorney in the Houston region for over 15 yearsOwn your BrandOne of first things to consider when bringing a product to marketWhat is the difference between a trademark and a copyright?Register trademarks in U.S. and InternationallyName is important as tt denotes source and ensures that your name is legitimate and authenticDon’t just protect your brand, protect your ideasUnited States Patent and Trademark Offices (USPTO)International filingsOwn your TechnologyPatentsEstablish ownershipMaking sure it’s a quality patent to give you the most protectionOpen Source? LicensingOwning Your Tech in Other CountriesChina and your intellectual propertyEstablish Freedom to OperateCrucial step that shouldn’t be overlooked - listen to the reasons whyReading/evaluating patentsHow to conduct IP searches and evaluate if you infringe on a patentShould you even look at other patents?Is it illegal to try to patent something that you know is not original?Meet with Bruce Hamby next week at the MacroFab Hardware Meetup!

21 Mars 201857min

Stephen"Slow Start" or soft start circuitsBulk capacitance is killing the power supply for the new synth designCapacitance MultiplierParkerBadge Design for DefCon NFC Belt BuckleLots of LEDs of courseDigital Logic Analyzer?Hacker Utility Belt design for DC27?RFOSaleae Logic Pro improvmentPerformance Boost!Latest Update unlocked all of the USB 3.0 Bandwidth for a 50% gainTented verse non tented vias Pros and Cons?How to Define them?Tags: Badge Design, Brown Note, Capacitance Multiplyer, electronics podcast, MacroFab, macrofab engineering podcast, Mega Zeus, MEP, Podcast, Saleae Logic, Soft Start, Tented Vias

14 Mars 201839min

StephenRibbon Microphone Turn it into a Hackaday.io project?Make a USB microphone from scratch? PCM2912ATalked about this IC on a previous episode of the MEPDatasheetStephen will be in Denver next week Contact InfoParkerTest results of the PCM5122 Audio DACsCovered in a previous episode of the MEPCeramic caps sound better? Sound is subjectivePinHeck REV8 Update PCM5122Running I2C and I2S on the Raspberry Pi Compute Module Have to run them on alternate pinsLooking into the source code for the dtoverlays to figure out how to pass the correct overrides dtoverlay=i2c1-bcm2708,sda1_pin=44,scl1_pin=45,pin_func=6dtoverlay=i2s-gpio28-31REV8 will be used as a test mule for PinoTaurRFOShortage of Passive Parts Hackaday articleMacroFab articleJuicero already found at a Goodwill StoreSelling for $40 verse the original price of $700Why is the boardhouse putting on a UL mark on my PCB? The mark means UL recognized which means that it is a component that can be used as a part of UL listed productTags: electronics podcast, MacroFab, macrofab engineering podcast, MEP, Podcast

7 Mars 201838min

AND!XORCheck out the previous MEP EP#69 Incognito Mode for the last time the AND!XOR group was on the podcastBitstr3mDid the Android mobile application for the DEFCON 25 badgeZappDoes the hardware design.HyR0nEmbedded software, puzzles, ectDEFCON 25 RECAPLast years badge detailsHunter S Thompson as Bender,bender on a benderBotnetChanging voltage regulators mid manufacturing runQFN design on PCBIterative prototypingHotFix to patch BLE exploitHacking IoT VodkaBadge SalesDEFCON 26 new Badge detailsHardware or Software secrets? Double down on botnetLessons learned to apply to the new badge? WS2812Bs do not reflow wellQFN design on PCB is criticalImplement OTA updatesIterative prototypingI2CLooking forward to this year?Not flashing badges three timesGoing to hacker jeopardyWant to see more people hacking badgesTags: electronics podcast, MacroFab, macrofab engineering podcast, MEP, Podcast

1 Mars 201848min