330 Results for "Q%20%EC%95%88%EC%82%B0%EB%B8%94%EB%9E%99%EC%9E%AD%20CDDC7_C%D0%9EM%20%E2%97%86%EB%B3%B4%EB%84%88%EC%8A%A4%EB%B2%88%ED%98%B8%20B77%E2%97%86%EC%88%98%EC%9B%90%EC%9E%A5%EC%95%88%20%ED%94%84%EB%A1%9C%ED%86%A0%20%EA%B5%AC%EB%A7%A4%E0%B9%8F%ED%86%A0%ED%86%A0%ED%95%AB%ED%94%BD%E2%8F%AC%EC%98%A8%EB%9D%BC%EC%9D%B8%ED%99%A9%EA%B8%88%EC%84%B1%E0%BC%88FX%EB%A7%A4%EB%A7%A4%E2%8B%8D%EC%95%88%EC%82%B0%EB%B8%94%EB%9E%99%EC%9E%AD%EC%95%A0%EC%9A%A9%20thorough/"

After the PCB gets submitted, all is fine, I can rest for a bit, right?
Log from LayerOne 2017
THE DAY AFTER......As we walk casually to the workshop, and discuss the various quad copter projects, and my old Traxxas RC truck which I have up the bench to repair it's glow engine and trying to find other radioactive sources to test geiger counters...

Fusion 3: the better algorithm
Log from PEAC Pisano with End-Around Carry algorithm
After playing by hand with real data in the log 103. Fusion 2: the manual tinkering, I have a better grasp of what I'm dealing with, and how. The odd/even idea is interesting but in the end, the algorithm boils down to: "Is a semi-arc already output...

ESP32 Mockup Completed
Log from Terminal-BASIC programmable calculator
Finally got the working mockup running. Currently the hardware includes: ESP32 dev moduleArduino Micro ProSD card readerBW LCD with a software LED controlHardware keyboard (a working mockup so far; the Chinese PCB manufacturer entered wrong delivery...

Basic Oneway Code Complete
Log from An Old Fashion Acoustic Modem for the iPhone
An Integer Version of the DemodulatorAs the code will be ported to a lowly Arduino using C code, I first looked at if I could use 16 bit signed integers. The answer is strictly yes. Strictly in that the 32 bit result of a 16 bit multiplication is not...

Review, teardown, and testing of LRS-150-24 Mean Well power supply
Hacker page by teardownit
The LRS-150-24 power supply can operate from a 100–120 volt or 200–240 volt AC network. The manufacturer states it provides an output current of up to 6.5 amperes at 24 volts. The supply measures 5¾ × 3¾ × 1¼ inches (145 ×...

To pull or not to pull - that is the question
Log from IuT voltmeter for a breadboard
... which turned to have the following short answer - to pull down with a 680 kOhm resistor. For a detailed answer---------- more ----------we need to acknowledge that a floating input of the ADS1x15 results in a rather high voltage reading. Therefore...

The Debugging Adventures Continue
Log from Garden Shed CNC
It turns out that leaving debugging code in your project can sometimes be a really great thing. I was going to video the axis mechanism and see if I could spot anything odd happening that might explain the drift, when suddenly during moving it into position...

Hack Chat Transcript, Part 1
Log from Software Defined Instrumentation Hack Chat
Dan Maloney11:58 AMHi Ben, welcome aboard. And good early morning to you as well ;-) Dan Maloney11:58 AMWe'll get started in just a minute Ben Nizette11:59 AMThanks Dan! No worries, it's still dark out but my coffee's darker. We're good here! Dan Maloney12:00...

IoT Heart Rate (BPM) Monitor and Tracker
Details from IoT Heart Rate (BPM) Monitor and Tracker
Although there are abundant methods and systems to monitor and track the heart rate (BPM), in this project, I focused on developing a new device with an easy-to-understand mobile application interface compatible with Android and iOs for observing the...

A robot for automating 3D printers
Details from A robot for automating 3D printers
Demo Video **NOTE: If you are hoping to get a quick overview of this project, please watch this brief two minute video.** [Figure 1: Robot Demo Video] Background The Problem with Traditional Manufacturing Traditional manufacturing involves developing...

Hack Chat Transcript, Part 2
Log from Open-Source Medical Devices Hack Chat
@riley.august sorry, (enter to send was selected) anyways there are bluetooth stethoscopes, but as stated they are expensive, of course there must be a way to make them more accessible Tarek Loubani12:16 PMIf you scroll up, I answered a similar question...

Homemade Successive Approximation Register ADC
Details from Homemade Successive Approximation Register ADC
1. Circuit of the SAR ADC Figure 1 shows the SAR ADC board and Fig. 2 is the schematic. ...

Hack Chat Log transcript, Part 1
Log from X-Rays and High Voltage Hack Chat
Fran PiernasFeb-20 11:50 AM@Jan ohhh right, yes, I have some x-rayed stuff anfractuosityFeb-20 11:51 AMout of interest, do you use lead shielding? JanFeb-20 11:52 AMyeah, that's what I'd like to know as well. and a dosimeter? anfractuosityFeb-20 11:52...

Transcript 4
Log from Getting Started in Ham Hack Chat
Mark J HughesJun-7 12:57 PMAre you in SoCal? hamsterdaveJun-7 12:57 PMBack in my day, we had to know CW at FIFTEEN words a minute to even look at a radio! fidJun-7 12:57 PM@Mark J Hughes You also don't need a calculator during the test session. K6FID...

Embedded Sensor Fusion: Part 2 the algorithm
Log from SunLeaf
Introduction In the last post we saw there were two types of models for the system: NCP and NCV. The light measurements were modeled as an NCV type system while the temperature and humidity measurements were modeled as an NCP type system. We have some...

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