@ContextualElec profile picture
Contextual Electr. @ContextualElec

Learn how to design, build and test real electronics from scratch.

Joined July 2013
  • Tweets 11,208
  • Following 67
  • Followers 4,947
226 Photos and videos
Self-detect Pinout Connection ift.tt/SfOMTLH [@ContextualElec forum]

Self-detect Pinout Connection

Hi! I am working in a project where there is a device and some sort of a “dock station” where the unit rest and charges, it can be placed in any direction, however, the “engaging” positions are...

forum.contextualelectronics.com
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AS7261 XYZ colour sensor ift.tt/0j3sHfD [@ContextualElec forum]
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Argyris Build Log ift.tt/GaEpFLj [@ContextualElec forum]

Argyris Build Log

Just happy to be learning, making and living.

forum.contextualelectronics.com
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Can M16878/4 / M22759/11 wire be burried underground? ift.tt/4Jro97b [@ContextualElec forum]

Can M16878/4 / M22759/11 wire be burried underground?

Hello, I’ve tried searching online without success. The wire in question is PTFE insulation. My question is really simple, can wire rated as M16878/4 / M22759/11 be buried underground? Thanks!

forum.contextualelectronics.com
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Problems registering for a course? ift.tt/bFmug3E [@ContextualElec forum]

Problems registering for a course?

Hi all, I have been aware of Contextual Electronics for quite sometime now, thanks to all the Youtube videos and podcasts Chris has been churning out. While I finally decided to take a leap and...

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How to automatic switch over voltage sources for RTC ift.tt/UrR9yci [@ContextualElec forum]

How to automatic switch over voltage sources for RTC

Hi all, I am trying to make a RTC backup voltage switcher (since my RTC ic does not have a separate pin for this). Under normal conditions, the RTC is powered by 3.3V coming from an LDO (powered from...

forum.contextualelectronics.com
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Learn how semiconductors work with SiliWiz ift.tt/pTGyxhl [@ContextualElec forum]

Learn how semiconductors work with SiliWiz

Hi everyone, I’ve recently put together a tool that makes it easy to interactively explore how semiconductors work, in your browser. We have a guide that takes you through the basics and ends with...

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L matching network for ceramic antenna ift.tt/vsGb5uV [@ContextualElec forum]

L matching network for ceramic antenna

I am designing a board with the IN100 NanoBeacon. My knowledge of RF is limited to making use of reference designs and I am trying to figure out a design recommendation. According to the datasheet,...

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277
Clarifying the mental model of an inductor ift.tt/jymKhqE [@ContextualElec forum]

Clarifying the mental model of an inductor

My hobby these days seems to be revisiting concepts and topics I was once comfortable with and re-investigating them…! Today’s topic is the humble inductor; There seems to be a lot of sources around...

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New email server ift.tt/tUbwo7Q [@ContextualElec forum]

New email server

Hi everyone, I’m testing out a new transactional mail server for this Discourse based forum. You will see emails being delivered from “noreply@mail.forum.contextualelectronics.com” from now on (or as...

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Board Layout Question (Robert Ferenec ESP32) ift.tt/lf853Vt [@ContextualElec forum]

Board Layout Question (Robert Ferenec ESP32)

Hi! was watching Robert Ferenec’s “How to Make Custom ESP32 Board in 3 Hours | Full Tutorial” and had some questions, I would love other’s opinion on at 1:24.02 (https://youtu.be/S_p0YV-JlfU?t=5042)...

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Simple Board Layout - (feather to 3x DS18B20) : multi layer or not? ift.tt/IgR3OQX [@ContextualElec forum]

Simple Board Layout - (feather to 3x DS18B20) : multi layer or not?

hi! I am playing around with EasyEDA, and I have a simple project to test it out with - an adapter board that takes a Feather board and attaches 3x DS18B20 sensors. So, super, simple! Even though the...

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PC Motherboard layout course ift.tt/Vu5SPLE [@ContextualElec forum]

PC Motherboard layout course

Hey I was trying to find an episode or link of someone that was interviewed on the podcast. There was an episode where the interviewee taught a class on motherboard layout. Does anyone know which...

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Industry meets Makers 2023 Starting ift.tt/PEkw8V1 [@ContextualElec forum]

Industry meets Makers 2023 Starting

Industry meets Makers is a program done for the 8th time in 2023 that connects individuals with Companies to take on projects or find creative solutions to problems. I have personally been active in...

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Recommendations for PCB assembly in USA? ift.tt/CwIA7y3 [@ContextualElec forum]

Recommendations for PCB assembly in USA?

I regularly use Chinese PCB & assembly companies (JLC, PCBWay, AllPCB) and been very happy with them, but I’ve got a customer who requires everything manufactured inside the USA. Please can I have...

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Small Business IT Consulting Firm USA ift.tt/pCP1YFf [@ContextualElec forum]
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Elektor RPi ATX Interface ift.tt/Eo5vc4Z [@ContextualElec forum]
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BJT (NPN) Pull-Down ift.tt/Bk7JMa8 [@ContextualElec forum]

BJT (NPN) Pull-Down

@quozl / @ToyBuilder I’m at it again 😃 This is a follow on from my last post MOSFET Pull-Down but this time on BJTs (NPN) I was looking at the schematic for the IoT 6 Click from Mikroe (https://do...

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The Open Toolchain Foundation wants to know about your toolchain ift.tt/RJ91A3Q [@ContextualElec forum]

The Open Toolchain Foundation wants to know about your toolchain

Hey, I’m helping out a little bit with a new foundation to foster and promote open toolchains in the hardware space. Would be great if some of you could list, praise and complain about your toolcha...

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MOSFET Pull-Down ift.tt/eaAEsPo [@ContextualElec forum]
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