Skip to main content

Get the Reddit app

Scan this QR code to download the app now
Or check it out in the app stores

Diy Electronics

Temporary Aerial Range Extender
r/meshtastic

Welcome to Meshtastic's Official Subreddit! You may also find us on [Discord](https://discord.com/invite/ktMAKGBnBs) and [Discourse](https://meshtastic.discourse.group).


Members Online
Temporary Aerial Range Extender
r/meshtastic - Temporary Aerial Range Extender









Well I guess we knew this was coming...RIP Eagle.
r/PrintedCircuitBoard

**Official Printed Circuit Board (PCB) Subreddit** - schematic capture / PCB layout / PCB assembly / gerber reviews / Altium / DipTrace / KiCad / LibrePCB / OrCAD / LTspice / QSPICE / Arduino / ARM / FPGA. Please read review instructions at https://old.reddit.com/r/PrintedCircuitBoard/wiki/index#wiki_instructions_for_reviews


Members Online
Well I guess we knew this was coming...RIP Eagle.
r/PrintedCircuitBoard - Well I guess we knew this was coming...RIP Eagle.



Teaching a bright 6 yr. old electronics
r/diyelectronics

This subreddit is dedicated to both amateur and professional engineers that want to build cool stuff at home, challenge themselves to learn new technologies, learn from each others' designs, and showcase their side projects.


Members Online
Teaching a bright 6 yr. old electronics

I’ve got a 6 yr. old kid (wrapping up Kindergarten) that is EXTREMELY interested in electronics and building things. He’s constantly asking me how and why parts work, what symbols are used in diagrams (and then drawing out his own electrical diagrams). When I am able to explain capacitors or generators or whatever, he gets it, and retains it and uses it in his “projects” (he pretends to make stuff and explain how it works - and he’s not always wrong).

I took electronics courses in high school and am a software developer, but there are definitely a lot of knowledge gaps 😅.

The question is: how might you organize a set of basic subjects (from which I can develop lessons) to sate such a kid’s appetite? He’s just getting started with math and obviously won’t be working through derivatives next year. I want to help him move beyond snap circuits though (which have been excellent, but are limiting to some degree) to help answer his how and why questions.




Help me understand the strange Ibanez TS10 input buffer
r/diypedals

reddit's community for DIY Pedal Builders!


Members Online
Help me understand the strange Ibanez TS10 input buffer

TLDR: Why would Ibanez spend the money on 3 extra components to perform the same action as previous versions?

Everything I can find regarding the TS10 Tube Screamer indicates that the input buffer runs at a different (unknown) bias voltage than all the other TS pedals which run at 4.5V

So I decided to build a version of that buffer in CAD and run SPICE on it. Sure enough, the bias voltage is 6.34V. Note* I used an opamp to make a basic JFET buffer instead of a transistor.

TS10 Input Buffer*

At normal guitar output voltages, even at outrageously hot levels (2 Volts) there is no difference from a standard 4.5V bias. There is plenty of room and the signal gets through clean.

2V Sine Wave measured at OpAmp output

You have to bump the sine wave up to 3 volts to get it to clip asymmetrically. Ok cool, that's a neat idea, but I can't imagine that's what they're after - to clip the signal asymmetrically  before it even hits the clipping stage? PLUS, that's just not a realistic input voltage - 99.9% of signal is getting through here clean.

3V Sine Wave measured at OpAmp output

Ok so... why? Why would a mega corporation approve the addition of 3 components to do the same action that one can do - not a minor thing when you're building thousands of pedals.

The only other major difference on a TS10 is the addition of the 220Ω resistor in line after this buffer stage. Many players prefer this pedal over TS9 and 808 - is it just that one resistor, or is this strange buffer config contributing?

Thanks for reading!









Bad photo, but half the contact is unwelded and either flux or corrosion present. Would this cause the pack to only charge to 50%?
r/18650masterrace

This subreddit has been taken private from June12 in support of the strike on reddit to protest the upcoming changes to the pricing structure for the reddit API and related rule changes. ------- You probably want all your electronics to run on the 18650 lithium-ion cell. You just don't know it yet.


Members Online
Bad photo, but half the contact is unwelded and either flux or corrosion present. Would this cause the pack to only charge to 50%?
  • r/18650masterrace - Bad photo, but half the contact is unwelded and either flux or corrosion present. Would this cause the pack to only charge to 50%?
  • r/18650masterrace - Bad photo, but half the contact is unwelded and either flux or corrosion present. Would this cause the pack to only charge to 50%?

Is there any way to read the angle from servo motor that controlled by hand?
r/arduino

An unofficial place for all things Arduino! We all learned this stuff from some kind stranger on the internet. Bring us your Arduino questions or help answer something you might know! 😉


Members Online
Is there any way to read the angle from servo motor that controlled by hand?

Hi everyone,

I am doing some project with Arduino and Servo motor (MG90S). I want to use Arduino to read the angle of the servo motor controlled by my hand and send that angle to another servo motor, is that possible or any library or algorithm support it?

Thank you very much


  • members
  • A subreddit for practical questions about component-level electronic circuits: design, repair, component buying, test gear and tools. members
  • /r/RetroArch is a subreddit dedicated to RetroArch and the libretro API framework. Post setup guides, questions and news here! members
  • An unofficial place for all things Arduino! We all learned this stuff from some kind stranger on the internet. Bring us your Arduino questions or help answer something you might know! 😉 members
  • members
  • ESP32 is a series of low cost, low power system on a chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth. The ESP32 series employs either a Tensilica Xtensa LX6, Xtensa LX7 or a RiscV processor, and both dual-core and single-core variations are available. It includes in-built antenna switches, RF balun, power amplifier, low-noise receive amplifier, filters, and power management modules as well. members
  • For questions, news, and discussion about batteries, cells, chargers, charger/inverters, power banks and UPSs. members
  • Instances of crazy fixes that actually ended up working. Or not working, I'm a description, not the cops. members
  • Information sub on all types of generators: home standby, Commercial, portable, RV, marine, etc. Repair tips, ratings and maintenance information available as well as recommendations on how to repair and safely operate a generator in an emergency. members
  • This subreddit is dedicated to both amateur and professional engineers that want to build cool stuff at home, challenge themselves to learn new technologies, learn from each others' designs, and showcase their side projects. members
  • MBL.REPAIR | Mobile Device Repair Whether you are a hobbyist or a tech sitting in the shop. This sub encompasses everything from basic computer, phone & tablet repair, to also those delving into the board level repair and data recovery aspects as well. We also provide basic getting started guides as well as links to vetted parts suppliers in our sidebar. Where we believe that as long as the device turns on, the screen is repairable! Welcome to Mobile Device Repair! members
  • For anything CNC related: CAD, CAM, automation, and more! members
  • Are you building a solar system for your house? Shed? RV? This subreddit is for you! Discuss your projects, show us pictures, ask for help. Anything DIY Solar! members
  • A place for solderers from around the world, to gather, help one another, and hang out. members
  • Discussion and news about component-level electronic circuits. members
  • reddit's community for DIY Pedal Builders! members
  • Have a rotorcraft that has two or more horizontal rotors? Then you're in the right place! Bicopters, Tricopters, Quadcopters, Pentacopters, Hexacopters, Octocopters, indeed any non-fixed-wing aircraft is very welcome here. members
  • Welcome to /WLED! This is a community mainly for WLED users to ask questions, show off their work, or help new users out! members
  • **Official Printed Circuit Board (PCB) Subreddit** - schematic capture / PCB layout / PCB assembly / gerber reviews / Altium / DipTrace / KiCad / LibrePCB / OrCAD / LTspice / QSPICE / Arduino / ARM / FPGA. Please read review instructions at https://old.reddit.com/r/PrintedCircuitBoard/wiki/index#wiki_instructions_for_reviews members
  • Reddit's original DIY Audio subreddit to discuss speaker and amplifier projects of all types, share plans and schematics, and link to interesting projects. members
  • Reddit's home for the FIRST Robotics Competition! members
  • Reddit’s home for all things lighting. Commercial, Industrial, Architectural, or Residential- you name it. Ask questions, recommend products, and post cool lighting! members
  • Welcome to Meshtastic's Official Subreddit! You may also find us on [Discord](https://discord.com/invite/ktMAKGBnBs) and [Discourse](https://meshtastic.discourse.group). members
  • Hi members
  • Repair of Televisions. For non-repair issues please use /r/4kTV members
  • This subreddit has been taken private from June12 in support of the strike on reddit to protest the upcoming changes to the pricing structure for the reddit API and related rule changes. ------- You probably want all your electronics to run on the 18650 lithium-ion cell. You just don't know it yet. members
  • Modding Power Wheels members
  • members
  • If you want to show off your new DIY drone, or if you have questions on how to build one, this reddit is for you! Unmanned Aerial Vehicles (UAV), Unmanned Ground Vehicles (UGV) and just about any other unmanned vehicle you can think of are welcome here. members
  • A subreddit about the OrangePi series of SBC's members