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ezequiel : electronics   33

How to Connect a Transistor as a Switch in a Circuit
In this article, we go over how to connect a transistor so that it will function as a switch in a circuit.
A transistor is a component that can play 2 vital roles. It can function as a switch and an amplifier. Many times, it functions as both in a circuit.
Specifically, in this article, we will show how transistors can be used as switches.
electronics  info  resources  tutorial  howto  guide  hardware 
8 days ago by ezequiel
Serious HDMI Problems. What's that smell? Burning Raspberry! - Raspberry Pi Forums
Q: [...] I have just received my Neewer Black HDMI Input To VGA Adapter Converter For PC Laptop.

There was a post here: [...]

That reported it working and I have no reason to doubt that. However when I plugged mine in to my raspberry pi and VGA monitor the screen was black but lit i.e. the screen recognised a connection was present but wasn't receiving any data. A thin wisp of grey smoke appeared from the HDMI and the component labelled "D1" is looking like it has burn out. Suffice to say I very quickly removed it and all power! [...]
2012  forumthread  raspberrypi  hardware  hardwaresupport  electronics  issue  workaround  tips 
29 days ago by ezequiel
The GPIO utility | Wiring Pi
WiringPi comes with a separate program to help manage the on-board GPIO interface as well as additional modules such as the PiFace and other devices like the Gertboard as well as generic GPIO expander type devices.
raspberrypi  development  electronics  hardwaresupport  manpage  documentation  raspbian  linux  example  cli  tool  sysadmin 
5 weeks ago by ezequiel
Preparing Raspberry PI for JTAG Debugging – Sysprogs Tutorials
This tutorial shows how to prepare your Raspberry PI board for debugging with JTAG (we have tested this with Raspberry Pi 1, 2 and 3). Using JTAG will allow debugging the Linux kernel using hardware like Segger J-Link. As Raspberry PI board does not have a connector with a normal JTAG layout, preparing the board for JTAG debugging involves finding the correct pins and wiring them in the correct order. Follow the steps below for a complete walkthrough:
2018  blogpost  raspberrypi  jtag  debug  howto  guide  electronics  screenshots  software  windows  links  hardwaresupport 
5 weeks ago by ezequiel
I've Bricked My Netgear DG834G v3 - Please Help - OpenWrt Forum Archive
Q: I am hoping someone here more wise then me can help me unbrick my Netgear DG834G v3 Router.

Here are some details I have pulled from the router before I bricked it. [...]
forumthread  2009  router  hacking  firmware  links  issue  workaround  jtag  cli  example  linux  hardware  electronics 
6 weeks ago by ezequiel
OpenWrt Project: Serial Console
Most people get along without a serial console for their device because they're able to flash a working firmware the first time - or are able to apply various recovery methods - and do all their communicating with the device over a network. However, some bootloaders don't have a “really failsafe” network re-flash feature, making a serial console one of the few ways to recover from a “bad flash” or an error in a user's own configuration.
openwrt  serialport  router  tips  info  resources  howto  guide  links  electronics  example  cli  linux  hardwaresupport 
6 weeks ago by ezequiel
How to Install CH340 Drivers - learn.sparkfun.com
In this tutorial, we'll show you how to install CH340 drivers on multiple operating systems if you need. The driver should automatically install on most operating systems. However, there is a wide range of operating systems out there. You may need to install drivers the first time you connect the chip to your computer's USB port or when there are operating system updates.
hardwaresupport  driver  drivers  howto  guide  electronics  linux  windows  macosx  links  software  serialport  usb  kernelmodule  screenshots  images 
6 weeks ago by ezequiel
UrJTAG - Universal JTAG library, server and tools
UrJTAG aims to create an enhanced, modern tool for communicating over JTAG with flash chips, CPUs, and many more. It takes on the well proven openwince jtag tools code. Future plans include conversion of the code base into a library that can be used with other applications. A flexible remote communication protocol that can be used over almost any type of serial link (including TCP/IP) is in the works.
2019  jtag  electronics  software  opensource  linux  raspbian  debug  debugger  documentation  hardwaresupport  raspberrypi 
6 weeks ago by ezequiel
Automatically Control Your Raspberry Pi Fan and Temperature - howchoo
Since the Raspberry Pi 4 was released, many have noticed that it can get pretty hot, especially when the CPU is under heavy load.
raspberrypi  electronics  howto  guide  python  gpio  images  blogpost  2020  links  hardwaresupport 
6 weeks ago by ezequiel
OpenWrt Project: Netgear DG834G v3
The Netgear DG834G v3 is an AR7-based ADSL router with 802.11g wireless and ADSL2+ support. It has a 4-port switch, and the wireless antenna is connected to an RP-SMA connector at the rear.
router  spec  hardware  hardwaresupport  links  openwrt  networking  wifi  wikientry  howto  guide  images  firmware  hacking  archived.version  electronics 
7 weeks ago by ezequiel
OpenWrt Project: JTAG
JTAG stands for Joint Test Action Group, which is an IEEE work group defining an electrical interface for integrated circuit testing and programming.
jtag  article  wikientry  links  howto  guide  images  electronics  debug  hardware  hardwaresupport  sysadmin  programming  test  spec  tips  openwrt  router  raspberrypi 
8 weeks ago by ezequiel
Recommendations for Component Cable and quality converter/adapter to hdmi : ps2
I primarily use ebay, but willing purchase through amazon. I know the cable is cheap, and the adapter has a huge range in price. Thoughts, opinions, and suggestions are appreciated. I wasted so much time trying to get composite with an upscaler to work.
vg.plat.ps2  electronics  compatibility  tv  converter  comparison  links  2019  forumthread  reddit 
july 2019 by ezequiel
Arduino - Home
Arduino is an open-source electronics platform based on easy-to-use hardware and software. It's intended for anyone making interactive projects.
electronics  embedded  arduino  opensource  hardware  community  links 
september 2016 by ezequiel
Watts - volts - amps - ohms conversion calculator
Watts (W) - volts (V) - amps (A) - ohms (Ω) calculator.
Calculates power / voltage / current / resistance.
electronics  home.appliance  tool  online  webapp 
january 2015 by ezequiel
ManualsLib - Makes it easy to find manuals online!
Looking for a manual online? ManualsLib is here to help you save time spent on searching.

Our database consists of more than 1174871 pdf files and becomes bigger every day! Just enter the keywords in the search field and find what you are looking for! Search results include manual name, description, size and number of pages. You can either read manual online or download it to your computer. Moreover, documents can be shared on social networks. Welcome!
electronics  hardwaresupport  online  pdf  manual  download 
june 2013 by ezequiel
Circuit_macros Version 6.31: Drawing electric circuits and other line diagrams.
This is a set of macros for drawing high-quality line diagrams to include in TeX, LaTeX, or similar documents. Fundamental electric circuit elements and basic logic gates are included with several tools and examples of other types of diagrams.
tex  macro  engineering  typesetting  software  graphics  electronics  drawing  diagrams 
july 2008 by ezequiel

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