uC Board is Buggy on Brown Out
I’m working on a project which involves battery Ni-Mh 4×1.2v, 2100mAh], which power-ups the boards. The current consumption is about 150mA.
Autoranging Digital Multimeter
This is an old article from Practical Electronics 1979. It shows the input circuits and digital ranging controls too. Using 7107 chip for display it is an excellent project to build even today.
Some Cyclic Timer Ideas
A product spec and need from my email archive. This indicates how clarity in customer specs can help him get a working solution with less wastage of time and money.
Build Electronic Circuits Like a Pro
If you want to build electronic circuits, you need to connect the components of your circuit somehow. If you expect to make your circuit work more than just a few times, you need a solid way of connecting them.
CAn Remote Automation-Control
CARACA is a home automation project based on a net of interconnected programmable circuits suited to perform different tasks like switch on/off appliances, decode commands from Ir remote control units, control thermostats, measure temperature and more.
Waterfox Browser
Waterfox is a privacy focused browser built for power users who value customization and control over their online experience.
Home Automation – Edward Cheung
This centralized system can control almost all of the lights in my home, a few appliances, the garden irrigation, some window treatments, the Audio/Video system, the security system, and the HVAC (Heating Ventilation and Air Conditioning).
EdSim51 – 8051 Simulator
A virtual 8051 is interfaced with virtual peripherals such as a keypad, motor, display, UART, etc. The student can write 8051 assembly code, step through the code and observe the effects each line has on the internal memory and the external peripherals.
Date Reminder
Date Reminder reminds you of recurring or nonrecurring events, like birthdays, bills to pay, appointments etc... The program can be run from the Startup folder with an option to show only, if there are any alerts for this day.
Practical Electronics Handbook
Ian Sinclair's Practical Electronics Handbook combines a wealth useful day-to-day electronics information, concise explanations and practical guidance in this essential companion to anyone involved in electronics design and construction.
The MOSFET in Power Electronics
delabs Notes - In a Circuit Module, if all Power and Signal Polarities are reversed. All NPN to PNP, All N-Channel to P-Channel and Vice Versa. All Diodes and Caps too turned around. This Topsy Turvy or Mirror Design ought to work in Theory. It has worked for some circuits in practice too in my experience. ?
Some believe that N-Channel is more Robust than the P Type. In Bipolar Transistor NPN is more trusted for the final output stages. The NPN Transistor and N-Channel turn-on by a Positive control bias. It may be inappropriate to say this mosfet is NPN or PNP.
DiscretesWeller Soldering tools - Cooper Industries
Rework and repair tools, soldering guns and irons and accessories. Desoldering Stations, Hot Air Stations, Portasol Irons/Hot Air Tools (Cordless Butane). They also have Soldering Gun Kits and Cleaning Tools.
ToolsOkular Document Viewer
Okular The Universal Document Viewer - Multi-platform, fast and packed with features, Okular allows you to read PDF documents, comics and EPub books, browse images, visualize Markdown documents.
LM3914 - Dot Bar Display Driver
The LM3914 is a monolithic integrated circuit that senses analog voltage levels and drives 10 LEDs, providing a linear analog display. A single pin changes the display from a moving dot to a bar graph. Current drive to the LEDs is regulated and programmable, eliminating the need for resistors. This feature is one that allows operation of the whole system from less than 3V. LM3914 - Versatile and Easy use Display
Tech-ReferenceK-Meleon Gecko Browser
K-Meleon is a lightweight, customizable, open-source web browser. It's designed for Microsoft Windows (Win32) operating systems. K-Meleon can use the secure Goanna engine based on Mozilla's Gecko layout engine or Gecko itself.
Mojeek alternative search engine
Mojeek - The alternative search engine that puts the people who use it first. Mojeek Focus Dashboard.
Successful PCB Grounding - Mark Fortunato
This tutorial discusses proper printed-circuit board (PCB) grounding for mixed-signal designs. For most applications a simple method without cuts in the ground plane allows for successful PCB layouts with this kind of IC.
PCB-LayoutDonate to delabs
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RS Latch Erroneously setting by Itself
I am having trouble preventing my rs latch from erroneously setting. The circuit is a voltage threshold detection circuit with a nand gate whose output is tied to a SR latch.
An Oscilloscope on your TV
Over the last few days I’ve been playing around with an old small black and white tv….I did the infamous “Oscilloscope on your TV” thing that’s all over youtube and the rest of the web…grew bored with that, so I’ve decided I want to make it into a fully-functional scope that I can use in my lab.