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69 results tagged electronics  ✕   ✕
Homemade Circuit Projects https://www.homemade-circuits.com/
Mon 18 Apr 2022 06:57:19 PM PDT archive.org

Homemade circuits was started with an aim to share and spread the knowledge of electronic concepts freely among the aspiring engineers and newbies, through the expertise of experienced authors involved with this site.

The online world is flooded with multitude of electronic websites offering free electronic circuits and stuffs.. but unfortunately there's one thing they mostly seem to lack, and that's credibility. An electronic idea is not just about publishing a piece of schematic and forgetting, or posting something too technical without an elaborate and convincing explanation.

Here at homemade circuits, unlike others we make sure that the author who is writing the post has an in-depth knowledge regarding the subject, and actively responds to every comment or query posted by a inquisitive visitor. In this site you will find that no electronic concept is unnecessarily made complex just to make it look more advanced. We always try to produce an easier alternative if feasible, so that even a layman can feel inspired to learn more.

blog electronics circuits educational theory projects
Pinetime https://www.pine64.org/pinetime/
Mon 04 Apr 2022 02:35:28 PM PDT archive.org

The PineTime is a free and open source smartwatch capable of running custom-built open operating systems. Some of the notable features include a heart rate monitor, a week-long battery, and a capacitive touch IPS display that is legible in direct sunlight. It is a fully community driven side-project which anyone can contribute to, allowing you to keep control of your device.

We envision the PineTime as a companion for not only your PinePhone but also for your favorite devices — any phone, tablet, or even PC. In its current state the PineTime ships with a community firmware called Infinitime, which works with Linux computers and phones, Windows machines, and Android devices. IOS support is currently being looked into for Infinitime.

watch opensource electronics sensors bluetooth tracking
blurpy/minipro https://github.com/blurpy/minipro
Sat 12 Mar 2022 02:03:06 PM PST archive.org

Notes on how to use the minipro F/OSS chip programming software. Because the docs are missing important stuff, like how to use it.

Cloned to Windbringer.

howto electronics chips programming documentation notes
Science and Engineering Projects http://avtanski.net/projects/
Wed 23 Feb 2022 04:56:36 PM PST archive.org

PIC microcontrollers, electronics, science projects, software, games, maps, and more.

electronics projects microcontrollers science software
DavidGriffith/minipro/ https://gitlab.com/DavidGriffith/minipro/
Tue 15 Feb 2022 03:40:03 PM PST archive.org

An open source program for controlling the MiniPRO TL866xx series of
chip programmers. This program exists because the manufacturer of the MiniPRO TL866xx series of chip programmers does not provide a program for use on Linux or other flavors of Unix. We who keep this project going prefer a simple, free, and open-source program that presents a command-line interface that allows for a GUI front-end if desired.

Compatible with Minipro TL866CS, TL866A, and TL866II+ from
Autoelectric. Supports more than 13000 target devices (including AVRs, PICs, various BIOSes and EEPROMs).

It's even in the AUR: https://aur.archlinux.org/packages/minipro

electronics programming C crossplatform chips
Fluxengine http://cowlark.com/fluxengine/
Thu 20 Jan 2022 07:02:25 PM PST archive.org

The FluxEngine is a very cheap USB floppy disk interface capable of reading and writing exotic non-PC floppy disk formats. It allows you to use a conventional PC drive to accept Amiga disks, CLV Macintosh disks, bizarre 128-sector CP/M disks, and other weird and bizarre formats. (Although not all of these are supported yet. I could really use samples.)

The hardware consists of a single, commodity part with a floppy drive connector soldered onto it. No ordering custom boards, no fiddly surface mount assembly, and no fuss: nineteen simpler solder joints and you’re done. You can make one for $15 (plus shipping).

Github: https://github.com/davidgiven/fluxengine

I might even have the board it requires in my drawers someplace. It looks suspiciously familiar.

retrocomputing hardware software electronics diskimages archival
pinouts.org https://pinouts.org
Tue 04 Jan 2022 03:42:31 PM PST archive.org

The Pinouts Book is a free digital book created for designers and engineers as a quick reference for remembering the different pinout functions in your electronics projects.

The book covers 130 commonly used components (view list), such as connectors, single board computers, dev boards, memory cards, microcontroller chips, and more.

If you need more technical information, each page has a link at the top (e.g. pinouts.org/XXX), and these redirect to official datasheets / specifications.

We’re going to be updating the book as time goes on, and we hope you find it useful.

pdf free download electronics pinout reference
Charles' Labs http://www.charleslabs.fr/
Fri 31 Dec 2021 06:57:02 PM PST archive.org

Charles Grassin

I am a young systems engineer in Paris, recently graduated in embedded systems. Electronics and code being my passions, I enjoy working on innovative open-source/hardware projects.

Dual language site - english and french.

projects electronics hacker software 3dprinting rf signal-analysis signal-processing rtlsdr
Adafruit: Low-level Magstripe Reading https://learn.adafruit.com/low-level-magstripe-reader?view=all
Tue 09 Nov 2021 02:25:33 PM PST archive.org

In order to get raw parsed data out of a magstripe reader, we first experiemented with a MAGTEK Centurion Keyboard Encoder (PN-21073062). We found that although we could get all 3 tracks of data, it was not possible to have it parsed out. We then purchased a raw magstripe decoder head with track 1 reading, the Omron V3A-6. By writing some parity checking code, we were able to read the raw data off of the magstripe, and parse it into output that would be 'typed out' as an emulated keyboard using a USB-enabled Teensy. An Arduino can also be used, and the data would be output as Serial which may also be useful.

Namechecks Stripesnoop.

howto electronics magstripes reader
Build Your Own LED Circuit Battery Level Indicator https://www.jameco.com/Jameco/workshop/JamecoBuilds/led-circuit-battery-level-indicator.html
Sat 30 Oct 2021 06:34:45 PM PDT archive.org

How to build a simple circuit that measures the amount of power left in a battery and display it in increments with a set of LEDs.

electronics howto battery measurements circuit
Pinuct/Eagle_PCB_USB_connectors https://github.com/Pinuct/Eagle_PCB_USB_connectors
Sat 02 Oct 2021 07:36:07 PM PDT archive.org

Eagle library for USB connectors printed directly on PCB.

cad design electronics usb connector circuits
Elecrow CrowPi2 laptop kit https://www.elecrow.com/crowpi2-raspberry-pi-portable-laptop.html
Tue 21 Sep 2021 12:49:16 PM PDT archive.org

Explicitly compatible with multiple OSes for the RasPi, so funky additional packages may not be needed for driving the rest of the setup.

hacking laptop kit raspi electronics bluetooth
bbenchoff/Raspi-BeBox https://github.com/bbenchoff/Raspi-BeBox
Mon 23 Aug 2021 08:04:32 PM PDT archive.org

Somebody modelled greyprints for a RasPi 4 case that looks like a miniature BeBox. A circuit board for implementing the blinkylights on the front can be purchased from OSHpark.

3dprinting raspi case greyprints electronics
Keebio https://keeb.io/
Sun 20 Jun 2021 10:11:17 PM PDT archive.org

Split mechanical keyboard kits and other oddities.

electronics parts keyboards kits
todbot/circuitpython-tricks https://github.com/todbot/circuitpython-tricks
Tue 08 Jun 2021 04:38:24 PM PDT archive.org

A small list of tips and tricks I find myself needing when working with CircuitPython.

python circuitpython tips tricks hardware electronics
Converting microfarads to nanofarads https://www.unitconverters.net/electrostatic-capacitance/microfarad-to-nanofarad.htm
Mon 19 Apr 2021 07:00:00 PM PDT archive.org

Microfarad [µF] Nanofarad [nF]

  • 0.01 µF 10 nF
  • 0.1 µF 100 nF
  • 1 µF 1000 nF
  • 2 µF 2000 nF
  • 3 µF 3000 nF
  • 5 µF 5000 nF
  • 10 µF 10000 nF
  • 20 µF 20000 nF
  • 50 µF 50000 nF
  • 100 µF 100000 nF
  • 1000 µF 1000000 nF

How to Convert Microfarads to Nanofarads:

  • 1 µF = 1000 nF
  • 1 nF = 0.001 µF
electronics reference capacitors conversion
inventree/InvenTree https://github.com/inventree/InvenTree
Thu 11 Mar 2021 11:08:06 AM PST archive.org

InvenTree is an open-source Inventory Management System which provides powerful low-level stock control and part tracking. The core of the InvenTree system is a Python/Django database backend which provides an admin interface (web-based) and a JSON API for interaction with external interfaces and applications.

InvenTree is designed to be lightweight and easy to use for SME or hobbyist applications, where many existing stock management solutions are bloated and cumbersome to use. Updating stock is a single-action process and does not require a complex system of work orders or stock transactions.

Has a mobile app.

Look in https://github.com/Zeigren/inventree-docker/blob/master/inventree_vhost.conf to see how to proxy it with Nginx.

python webapp exocortex leandra inventory management parts electronics rest api organization
Digikey: Connectors https://www.digikey.com/en/resources/connectors/index
Sun 14 Feb 2021 10:28:26 PM PST archive.org

Digikey's choose-your-own-adventure subsite for identifying connectors.

electronics parts identification catalog
OrbSWARM http://wiki.orbswarm.com/index.php?title=Main_Page
Sun 24 Jan 2021 07:26:04 PM PST archive.org
wiki robotics electronics
GitHub - ardyesp/DLO-138: An open source firmware for DSO-138 O-Scope https://github.com/ardyesp/DLO-138
Sat 09 Jan 2021 06:47:26 PM PST archive.org

An open source firmware for DSO-138 oscilloscope, based on the ARM Cortex M3 STM32F103 processor core. The firmware adds two analog channels, two digital channels (if you patch onto pins PA13 and PA14 on the board), a serial interface (over USB, probably), selectable source triggers, support for a retrofitted rotary encoder, and 2k sample depth. The tradeoff is that 10 µs sampling had to be removed to make room.

To flash the firmware you have to use a TTL-to-USB converter to patch directly onto jumpers J1 and J2 on the mainboard. No USB support, remember?

firmware opensource oscilloscope electronics tools
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