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Raspberry Pi

• Ensuring systems are remotely accessible with watchdog timers and bootloaders
• Maximum safe temperature for LCD electronics?
• Interesting Digi-Key article about messy desks in electronics design engineering
• Verilog sequential logic timing explained
• Review of open-source programmable FPGAs
• Pinebook Pro, a good Open Hardware laptop that actually made it to market
• Simulate your digital logic designs before building
• Motorola MC68000 CPU as part of an FPGA design
• RTC chip showdown
• Pull-up resistor values in AVR microcontrollers
• Electric Paint is sold at Digi-Key too, and other related products
• Acid in wood, acid-free paper purchase, busting versus edge crush test
• N64 Gameshark Linux tools, Everdrive Nintendo cartridge SD card adapters, and more
• Mystery parallel port interface pins solved
• Open Hardware keyboards, USB on AVR, old dual USB PS/2 keyboard controller IC, group buys
• Poor man's SCSI via parallel port revisited
• Getting FreeCAD running on Raspberry Pi 4
• Corrections on Raspberry Pi boot-time GPIO behavior
• `box86`, a faster way to emulate x86 on Raspberry Pi
• Parallel port termination explained
• How to configure Raspberry Pi HAT EEPROM to automatically load DT overlay
• Raspberry Pi 4 Compute Model, looking for info on PiZero 3.3 V short circuit
• Warnings on reflow soldering crystal oscillators
• Review on early generation DRAM usage
• Old laptop LCD deep-dive
• Commercial 3D printing nickel-plated
• Conductive ink revisited, again
• OSP PCB finish, classic Macintosh SCSIProbe
• Eagle CAD library for vintage parts
• Supercapacitor UPS for Raspberry Pi
• Wow, Amiga community argument resulted in unauthorized board clone
• Embedding fuse bits in compiled AVR output, high-voltage serial programming
• Virtual Game Cube DVD loader
• Determine capacitor values to use with crystal oscillator
• Jared Mauch's story of becoming his own ISP
• A more elegant way to get Raspberry Pi GPIO interrupts in user-space
• Using a crystal connection to drive a dedicated AVR timer
• Can you read the contents of mask ROM with a microscope photograph? Yes.
• The PIC microcontroller understood in context
• Jumping into AVR development, what you need to know
• North American NEMA power plugs, and interesting new safety regulations
• More information on box certificate size limit, DIM weight, info on pallets
• Kai Robinson on Twitter, Macintosh SE Reloaded on GitHub, identifying counterfeit ICs
• Inside your cheap broken headphone wiring
• Lead-free soldering iron temperature, bismuth solder, solder! More info about keeping soldering iron tips clean.
• How to setup a flux pen first time after buying
• Interesting Digi-Key articles, Peltier module cooling, one-pair industrial Ethernet, rotary encoders, port expanders
• Methods to generate output files from KiCad sources
• Raspberry Pi 4 booting, Pi4 PXE boot, and Raspberry Pi HAT ID EEPROMs
• Good info on reflow soldering adhesive mounting tape and defects
• Great technique on hand-soldering fine pitch integrated circuits
• BJT transistor emitter-collector understood
• Reverse engineering the Macintosh SE main logic board project, how to digitize a multilayer PCB
• Recycling solder waste revisited
• GHS hazard pictograms
• More information on solder flux
• More info on cleaning soldering iron tips, best practices
• Potential competitors to `pi-parport`?
• "Totem-pole" means buffered
• A shift register built out of 7400 logic on perfboard
• Arduino parallel port interface for CNC machines
• SeeMore old Raspberry Pi supercomputer
• Another Open Hardware CPU and modern computing project
• UTsource, another electronics components distributor
• Pick-and-place files in KiCad, notes on through-hole automated assembly
• SCSI over parallel port, revisited again
• Summary of turnkey PCB manufacturers
• Interesting DSP speaker Instructable
• Does solder flux ever expire? Not really. And, another turnkey PCB assembler. And, how to tell leaded solder boards apart from lead-free solder boards.
• Arduino board source code, more details on DIY chemical PCB etching
• RaSCSI, the solution to using your Raspberry Pi as a SCSI device
• KiCad rounded traces, interactive graphical HTML BOM
• Import STEP files directly into Blender? Go through FreeCAD.
• PotatoFi's blog, and NanoPi
• KiCad rectangular drill holes, and CrtYd layer
• Watchdog timer on Raspberry Pi? Yes.
• Ideas on better boot-time watchdog timer behavior
• Raspberry Pi 3A+ is a thing, clock stretching on I2C, and ViewTouch
• Creating panelized PCB designs in KiCad
• Digi-Key article about safety circuits, and Texas Instruments article a bout power supply ideal diodes
• Other folks on Twitter discussing automatic GPU compilation
• Summary of DIY printed circuit board manufacturing, and tips on solder fume protection
• Exporting 3D board models in old versions of KiCad
• Lithium-ion battery safety on ships at sea
• Extending CPU framebuffer graphics rendering subroutines into GPU parallel subroutines
• Finally, ribbon cables to connect LCDs understood
• Raspberry Pi OpenGL driver development
• RPi OpenCL Compute Shaders, CLBlast
• The back-end of electronics rare earth metal refining
• Vulkan on Raspberry Pi 4 is coming
• OpenCL on Raspberry Pi is hard
• Interesting updates on Raspberry Pi and Raspberry Pi 4
• Learning about the watchdog timer on my TPE-R1100 wireless access points
• Good tricks for dealing with stubborn through-hole desoldering
• Rochester Electronics, specialist in recreating obsolete integerated circuits
• The original Apple II did **not** have a vertical blanking interrupt
• The disparate effect of joblessness due to COVID-19, new TSMC fabrication facility in Arizona
• Repair an LCD screen with dead segments/pixels on hand-held electronics, and notes on multiplexing schemes for displays
• Drag soldering, a technique for those fine-pitch surface-mount chips
• Good list of electronics tools
• Wow! Digi-Key PCB ordering services
• Lessons learned from more soldering, do-it-yourself air filters
• Finally, the solution for the cross product in n dimensions
• Insightful Digi-Key blog article about improvements in robotoic arms for small manufacturers
• Export a 3D model of a board with components on it in KiCAD
• Interesting Digi-Key blog article about RFID advancement
• Revisiting building a cheap oscilloscope using PC microphone input
• More Digi-Key blog articles on switched-mode power supplies
• Digi-Key blog article on long-term IoT sensors, and ithium thionyl chloride batteries revisited
• Great Digi-Key blog article on making programmable logic design easier
• Can you mix leaded and lead-free solder on the same board? No.
• Reflow soldering nylon connectors, and using solder paste with through-hole components
• Simple serial communications, and methods to progressively reduce the pin count requirements
• Beware of diode package sizes
• Hot-swapping connector designs, I2C connector design, my own SPI connector design, and "Stop 'N' Swop"
• Lessons learned on designing physical electronics projects, 3D scanner, page counting device, software dependencies, and bill of materials
• Lessons learned on switched-mode power supplies and battery power for the Raspberry Pi
• Picking a MOSFET with proper support for gate voltage
• Good Wikipedia info on switched-mode power supplies
• Some more good Digi-Key articles
• The trick to directly connecting a magnetic buzzer without flyback diodes
• Field programmable analog arrays and arrays of analog switches
• Can you use a soldering iron to reflow solder paste? Yes.
• Understanding inductance calculation based off of geometry, and enlightenment on the readymade inductor market
• Beware of ground loops when using Schottky diodes to polarity protect multiple power supplies
• Decisions on choosing a supercapacitor
• Explaining n-channel and p-channel MOSFETs
• Raspberry Pi maximum voltage and TVS diode voltage regulator
• Some interesting Digi-Key blog articles
• Raspberry Pi maximum SPI clock speed, parallel ports, LPC bus delays
• Inductors explained
• Capacitors explained
• Digi-Key blog articles: isolation circuits, Raspberry Pi solar cells, and respect for power engineering
• The chemicals of light-emitting diodes
• Capacitor temperature range codes
• KiCad circuit simulation, unfortunately analog-only
• Debounce a button using a capacitor, and RC filters explained
• Lessons learned with BJT transistor selection and placement
• What happened to the KiCad autorouter in version 5?
• Do not route traces under resistors in PCB designs
• Information on KiCad sponsorship, and another robotic pick-and-place PCB assembler
• Raspberry Pi screw and standoff dimensions
• Temperature resistant insulation materials in pin headers, wave versus reflow soldering, and DNP
• How to create the Raspberry Pi breadboard-style schematics
• Digi-Key KiCad library, and generate a Digi-Key Bill of Materials in KiCad
• Note on resistive voltage dividers, simple way to send a signal down a power connection
• More discussion on motor control ICs, decoupling capacitors, MOSFETs, MOSFET protection circuits
• Lots of lessons learned on switched-mode power supplies, and effective series resistance of capacitors
• Understanding capacitor voltage limits
• Great discussion on proper decoupling capacitors with L293D, and note on cheap ADC with Raspberry Pi
• Hook-up wire jacket insulation materials
• More info on AWG wire ratings, USB, telephone, and Ethernet cables
• Snap-in pin headers? Yes, that's really a thing.
• Still trouble with libre software development FPGAs
• Use SPI to drive plain old shift registers and HX711 ADC, and easy SPI to asynchronous serial communications conversion circuits
• Generate high speed waveforms with Raspberry Pi, ChibiOS/RT, Raspberry Pi power-on RESET signal, and Raspberry Pi watchdog
• Faster SPI graphics displays on Raspberry Pi
• Lowdown on glue logic with Raspberry Pi
• Program an Arduino using SPI on Raspberry Pi, and configuring the stock ATmega 328 chip to run at 3.3 V
• More info on selecting decoupling capacitors
• Path of action for repairing a CRT with jittery vertical deflection
• Great Digi-Key article on FPGAs, and reflection on PLD design
• Finally found the tricks of the trade behind crimping Molex PicoBlade
• Noisy fan inside computer electronics? Try cleaning it.
• Year 1920 problem on classic Macintoshes, multisync monitor signals, paint removal, soldering
• Lessons learned on repairing my digital wristwatch
• More info on crimping Molex connectors
• Lessons learned on cleaning corroded battery contacts
• LCD screens, the touch of death and the healing touch of life
• Using an APC UPS with GNU/Linux
• Fixing broken apt dependencies in Raspbian
• Low-power wireless temperature and humidity monitoring using ESP8266
• Haiku OS **does** work on ARM!
• Raspberry Pi 4 video tearing explained
• More discussion on Raspberry Pi power button, suspend to disk, suspend to RAM
• How to setup proper DPMS on Raspberry Pi
• Virtualization on Raspberry Pi
• My setup and first test run using Raspberry Pi 4 as a desktop PC
• How to measure inductance
• Weight sensors revisited
• Active low and active high
• Hobby project time spend and investment measures
• Programmable Logic Array versus FPGA
• Responsibly made in China?
• An overdesigned Raspberry Pi Zero system
• SPI is faster than I2C
• TI 84 Plus Calculator I/O port
• Different ways to start a program on Unix and Raspberry Pi bootup
• Article diagrams, software versus hardware
• Lots of interesting info from 68kMLA
• Lessons learned with cable design
• Reiterate transmission line bus construction, RS-485 line drivers, comparison with LocalTalk, and power over RS-422/485
• Finally an update on EOMA 68
• More information on capacitive force sensors
• Some good cheap segmented LCD displays, and info on driving an LCD display
• Make your own cheap capacitive pressure sensor, and list of simple sensor technologies
• Fun ways to build improvements to a toybox
• Interesting video about putting together 12-key MIDI controller
• How to build a keyboard controller in pure hardware circuits
• More info on 7-segment LCD display control, flat zebra cables, and beware of PWM LED brightness control
• Silent step stepper motor controllers, make a 3D printer run silent
• Information on DC barrel connectors and and tricks on how to measure DC barrel connectors
• Interesting FPGA Raspberry Pi Zero HAT
• Great reference for PCB board markings
• Polyfuse to use with Raspberry Pi Zero
• Great Digi-Key article on diodes, and searching for DC switching power supplies, and inductors revisited
• You **can** buy a fully automatic SMT assembly prototype online!
• Space or no space between units?
• Interesting Digi-Key blog article and maker.io
• How to implement a Raspberry Pi power button, and using `gpio-keys` for interrupt-driven GPIO key events
• Explaining single-wire earth return, and updates on "magnetic resonance" power distribution
• Mask ROM and PROM
• How to get composite video out of Raspberry Pi audio plug
• Low-speed brushless DC motors
• Raspberry Pi Zero PC USB GPIO expander, old distributors expansion news
• IEEE Spectrum PCB motors and "dead bug" high-speed circuits article
• Smaller DC motors, computing motor power, and brief review of vehicle steering
• Use a hot glue gun for welding plastic and shrinking heat-shrink
• Output impedance explained, and transmission lines
• Summary of computer I/O connector voltages
• Capacitor plague still affecting us to this day? And notes on "Chinese drywall"
• Minimal components to build a cheap sound toy
• Tips on repairing squashed wires
• More information on leak-resistant lithium batteries
• Useful eLinux page on the Raspberry Pi
• Reflection and summary of motor control protective circuits
• Many useful parts for building your own motor control circuit
• SMD to through-hole adapters
• Build your own low voltage motor controller out of MOSFETs
• Ceramic resonators alternative to quartz crystals, and Raspberry Pi crystal oscillator
• Current ratings of AWG wire gauges
• BJT, MOSFET, and thyristors compared, discussion on ADCs
• Build your own Pentax CS-205 cable release button
• Determine resistor resistance and power-rating for LEDs
• No progress on EOMA68, but is Libre RISC-V M-Class moving
• IC "plastic" packaging material and melting
• Attach a serial device as Xorg keyboard
• Polish acrylic plastic to a glass-like shine
• Burning match temperature and hot temperatures used for various purposes
• Computer and television video signal standards
• Vintage Computer Festival Mid-west
• Capacitor repair info on vintage Macintoshes
• Very interesting tiny development board packing a punch!
• Rationale for vintage computing vs. single board computing
• Very interesting modern 8-bit computer design
• Great interview iwth Eben Upton on Raspberry Pi 4
• Clever tricks with electronics and EOMA68
• Are button cell batteries wired directly without voltage regulators? Most likely, yes.
• Polygonal mirrors
• More Raspberry Pi 4 reviews
• Exciting progress on RISC-V and how to donate
• SSDs are poised to render hard drives totally obsolete
• Modern Microsoft Office on Windows 10 ARM? No.
• Raspberry Pi 4 reviews
• Conductive inks revisited
• Raspberry Pi 4 is here!
• Get Raspberry Pi serial number
• Mechanical television revisited
• Raspberry Pi does **not** have 64-bit time
• Updates on MPEG-2 hardware decoding on Raspberry Pi
• Libre RISC-V M-Class -- Competitive Progress
• Remove heatshrink tubing from wiring
• Miscellaneous notes on culture, software abstractions, and EOMA 68
• Flexible glass and ancient inventions
• Red List Building Materials -- great start
• More fire-resistant materials for electronics cases
• What is Guardian tempered safety glass?
• Exciting progress on the custom RISC-V project
• Video capture on Linux mapped out
• Clay electronic cases, the chemistry of rocks and minerals, and sodium silicate glue
• More ways to build your own keyboards and buttons
• Protective equipment for soldering and welding
• How to remove various glues from circuit boards, and about chip-on-board modules
• Updates on EOMA68
• Cheap Raspberry Pi viewfinders inspired by... gun sights?
• Antigens that cause latex allergies, info about Spandex
• Looking for switches and devices resistant to static electricity
• Does sunscreen contain endocrine disruptors, and reflections on chemicals that are good or bad for our planet
• Chemical properties of ABS plastic, synthetic rubber, pencil erasers, and the "Bissell" company name
• Can a Caesium atomic clock be made in an integrated circuit?
• The chemical elements of plastic, paper, cloth, and endocrine disruptors
• Smart thermostat dual MCU and SoC design
• Apple saying you can't sue them for software updates that slow down, Raspberry Pi Compute Module 3+, RPi PoE woes, and multi-terabyte disk drives more reliable
• Static electricity IS causing the hanging on my smart switch
• Updates on board support in LibreCMC
• Paper mache works well for Raspberry Pi cases, and notes on plastic health hazards pertaining to 3D printing
• When your "rubber eraser" is not rubber, plastic is "synthetic rubber"
• Materials with endocrine disruptors and hazardous chemical evaluations
• SSD capacities and longevity for video camera recording
• Tips on home-grown electronic push buttons and wire shaping
• Interesting SparkFun article discussing discontinued chips
• Soldering onto cardboard circuit boards
• Graduated ordering of electronics project tools
• OSH Park, solder mask, and robotic pick and place
• Revisiting the Zero Phone
• Origin of SparkFun name, and interesting multimeter trademark affair
• DirtyPCBs website also sports SLA 3D printing
• Crazy circuits, third party Lego electronics
• Sources of old schoolwork papers
• TechShop goes bankrupt, and reflections on the economics of research projects
• Evaluation of the Gertboard
• Discussion on soldering surface-mount devices
• More improvements and tradeoffs to my GPIO pin layouts
• More methods to setup a 3.3 V motor control circuit
• How to strip wires with only a pair of scissors
• Why PWM motor speed control works
• Lowdown on real-time Linux GPIO hardware control on Raspberry Pi
• Digi-Key explorations, and surface-mount device soldering tips
• Easily turn a plush toy into an electronic marionette
• Building keyboard with shift registers instead of a matrix
• 3D scanner motor vibrations control
• Wave soldering and reflow soldering compared
• Notes on telephone jacks, and what a PBX is
• Time-keeping with Arduino and Raspberry Pi
• Updates on EOMA68 Earth Friendly Computing Device and RISC-V
• GPIO pin distance
• ATmega microcontrollers
• Diode as a cheap temperature sensor
• Background information on humidity
• Looking for an actual 3.3 V motor driver IC for sale
• Measure the air flow through a room continuously? No, it's tough.
• Decisions on Raspberry Pi GPIO connections
• More info on Raspberry Pi battery power monitoring
• More about motor control ICs, looking for 3.3 V IC, and optical gyros
• 3D scanner laser rotation motor gearing
• The question of heat shrink tubing
• Discussion on GPIO and motor connections with Raspberry Pi
• The connector mystery solved, Molex PicoBlade
• How to 3D print a plastic magnifying lens
• Final verdict on Raspberry Pi optical viewfinder
• What is a balun?
• ESP8266 links and notes
• Searching for methods to add a keypad to a Raspberry Pi
• Looking for laser rangefinder modules, getting more specific
• What is a Thyristor?
• The lowdown on JST connectors
• Lots of Raspberry Pi info: optical viewfinder, connector information, displays, eccentric peripherals, 2.8 V power trick
• Small desktop PC alternatives to Raspberry Pi
• Looking for one-dimensional CMOS image sensors
• Practicing soldering and perf-boards
• Raspberry Pi peripheral classifications
• Fastest measurement techniques for indoor surveys
• Getting Docker/Kubernetes setup on a Raspberry Pi
• Success opening old DSL router, now time to figure out JTAG wiring
• Cloud hosting on Raspberry Pi computers
• Raspberry Pi One-Time Programmable (OTP) documentation
• Large Raspberry Pi clusters at Los Alamos National Laboratory
• The screwdriver to open up the old DSL router/modem
• Things I learned about new Trisquel and Raspberry Pi firmware flashing
• Updates on (Windows) PC game controller APIs, their future, and Linux support
• Dedicated Kiwix server on a Raspberry Pi
• Measuring the CPU/GPU temperature on a Raspberry Pi
• Raspberry Pi VidCore API
• Raspbian `debian-installer` command line or network installer
• Testing my new MicroSD card for fakes
• "Donut rings" no longer on modern motherboards, and other interesting hardware notes
• Libre software friendly hardware on 802.11ac?
• Raspberry Pi B+ with SDXC cards?
• Fake Apple power supplies, Raspberry Pi, and Raspberry Pi 3 B+ PoE Ethernet inside
• Darktable camera support for Raspberry Pi?
• RAW photos with Raspberry Pi camera?
• The new Windows, why I hate it, and reflections on single-board computers and home servers
• Raspberry Pi 3 B+ on-board power supply tech in detail
• Ethernet over RS-485?
• Parallel port discussion continued, and some analysis on the history of computer size, capabilities, and market share
• USB to parallel port adapters
• Video input through the MIPI CSI-2 camera connector on Raspberry Pi?
• Single board computer energy consumption
• Fake SD cards from Amazon!
• Still more comparisons on single-board computers
• ODROID-C2 notes
• Comparisons and plans for getting my next-up better single-board computer
• Multiple UARTs on Raspberry Pi?
• Diagnosing Raspberry Pi HDMI signal communication problems
• Internet of Things sensors for Raspberry Pi
• Interesting details about the MIPS architecture
• ARM syscall interface details, more cross compiling, and connect NTP to your Raspberry Pi Zero via USB gadgets mode
• Other hardware with more processor architectures for me to program
• Raspberry Pi Zero with PoE?
• More ARM/MIPS Linux syscall programming notes, and more on cross-compiling
• ARM/MIPS Linux syscall programming notes, and cross-compile information
• Linux system calls, sbrk()
• Interesting HTTP status codes, gag orders, appropriate technology
• Still trying to figure out screw type on old DSL router
• Learning low-level hardware using an old ADSL modem-router
• Banana Pi evaluation continued
• Single-board computer comparison in 2018
• Does Raspberry Pi Zero support SDXC?
• Cool things you can do with a Raspberry Pi
• Reuse old laptop display for Raspberry Pi
• Info on PC ATX power supplies and "lab bench supply" conversion
• Can you power multiple 12 V devices with a single power supply?
• Wire-OR gate, DTL, RTL, etymology of pull up/down in GPIO
• Raspberry Pi JST connectors option
• Looking for information on price trends of MicroSD cards
• Raspberry Pi file server speeds, power saving, remote push button
• Raspberry Pi USB gadget mode, remember as means to copy
• H.264 successor, Raspberry Pi libre boot and Odroid, space garbage trucks, SLS patent expiration
• Create your own DSLR camera macro light ring
• Powering the Raspberry Pi Zero on 3.3 V
• How to solder small connections
• Clarification on rechargeable battery technology, switched mode power supplies
• 3D scanner Raspberry Pi design, power supply, cost equations, the Zero Phone
• GPU accelerated video decode on Raspberry Pi?
• EOMA68 updates and the Raspberry Pi Zero Phone
• Updates on Spectre and Meltdown, Raspberry Pi not vulnerable, RISC-V, and updates on EOMA 68
• Raspberry Pi 1-bit speaker wiring, CodePlex to be shut down, and the "Medium" website
• Tiny microphone and sound card for Raspberry Pi Zero?
• Bootloaders and Device Tree
• Do-it-yourself battery backup system summary and components
• Raspberry Pi Zero powered from sun, still limited sale per customer
• Raspberry Pi weather balloon in space
• Any news on Raspberry Pi Zero? Nope.
• What is SDXC versus UHS and why high-capacity cards typically aren't used with Raspberry Pi
• Battery backup system alternatives to lithium-ion batteries
• Control a 150-year-old teletype with a Raspberry Pi
• Raspberry Pi libre UV metering system, and another singla board computer
• Info on getting HP ScanJet 5300C working, USB reset code
• Raspberry Pi camera stream processing, HTML 5 webcam, 3D scanning armature, windup springs, motors as generators, power supplies sharing motors and logic
• More on GPIO port expanders, level shifters, AstroPrint, and RACHEL
• Pull-up versus pull-down, voltage level shifters, GPIO port expander, 1-wire
• New Raspberry Pi Zero W with Wi-Fi
• Interesting Raspberry Pi projects
• Raspberry Pi Zero GPIO "snap together," sound output, PWM, realtime, Pine64 computer
• Alternatives to L293D motor controller? Info on CMOS.
• Lots of useful 3D information resources
• Recording video from Raspberry Pi camera
• Criticism of downloading to service a Raspberry Pi
• Raspberry Pi Zero in my hands, getting started
• Raspberry Pi GPIO info, HATs, camera, UART, lithium-ion battery, USB gadgets mode, schematics, anti-static paper
• CNC milling versus 3D printing
• Info on USB, PoweredUSB, and Nokia Pop-Port
• More information on IR and UV pass/cut filters
• On computer user growth, and Raspberry Pi's competitors
• Finally found ideal filter for Raspberry Pi NoIR camera
• Raspberry Pi remote monitoring, Raspberry Pi Zero
• Still looking for Raspberry Pi NoIR camera filter
• Looking for infrared filters for Raspberry Pi
• UV photography, history of DSLR cameras, camcorders, M-DISC
• Raspberry Pi camera lens
• Interesting links on Humble Bundle, Docker, CoreOS, Docker on ARM, Pine64
• 128 GB SD card with Raspberry Pi 3?
• Robots
• FabScan thesis papers revisited, more 3D scanner analysis, MakerScanner
• Why Raspberry Pi Zero uses more than 3V
• Great info on using Raspberry Pi Zero and why there is a shortage of them
• Servo motors, Raspberry Pi oscilloscope, and Raspberry Pi composite video input
• The size of my text notes and speech to text
• Beware of counterfeit mobile gadgets
• Cost evaluations for Raspberry Pi projects
• Why Raspberry Pi production capacity is so low, info on AA battery power and camera
• Great Raspberry Pi camera and great cost
• Great open-source 3D scanners, including advanced Raspberry Pi use, filesystem information and tools
• Is the Raspberry Pi Zero really too expensive? Not necessarily
• Is USB VGA a hoax?
• T-Flash = MicroSD
• Antennas and capacitor discharge pattern
• Raspberry Pi Zero still sold out, powered USB hubs
• Raspberry Pi boot caveats
• More Raspberry Pi power and connector information
• Raspberry Pi power, boot, DMA, USB, Ethernet, phone connectors discussion