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Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Members

rjenkinsgb

Most Helpful Member

Well-Known Member From Sheffield, England

Joined: Apr 29, 2018

Last seen: Today at 12:29 AM

Latest activity Postings Media Albums About

- rjenkinsgb reacted to ZipZapOuch's post in the thread Does US electric code allow branching ? with Like.
  
  No. You need a single mains switch to throw to cut all power. There is no way to add your panel without asking the power company to...
  
  Yesterday at 9:58 PM
- rjenkinsgb replied to the thread Faulty heat air gun (dc motor) - problem to locate fault due to Intermittent fault.
  
  If it's two power levels, it likely has two electrically parallel elements, one in series with the motor and with the second switched in...
  
  Yesterday at 10:52 AM
- rjenkinsgb reacted to Nigel Goodwin's post in the thread Sump pit water alarm - Kicad 9 with Like.
  
  Unfortunately the people using the equipment are generally pretty well non-technical, and are doing a fairly hard and miserable job...
  
  Yesterday at 10:46 AM
- rjenkinsgb replied to the thread Does US electric code allow branching ?.
  
  I'm not in the USA, but I very much doubt that is permissible. The safe way to do it is add a 30A circuit from the existing...
  
  Yesterday at 10:45 AM
- rjenkinsgb reacted to ahsrabrifat's post in the thread Wierd makita battery with Like.
  
  Some very cheap clone battery packs are designed to look compatible to chargers or tools, but do not support advanced charging or...
  
  Tuesday at 10:46 PM
- rjenkinsgb replied to the thread More fun with ws2812 this time XC8 and CLC.
  
  Sounds like it does not comprehend the difference between SPI clock and data..
  
  Monday at 10:27 PM
- rjenkinsgb replied to the thread The Analog Gods Hate Me.
  
  The input amps have a gain of 2, rather than being unity gain. They also need bias resistors (10K or 100K) from the + inputs to ground...
  
  Monday at 10:22 PM
- rjenkinsgb replied to the thread I Wanna build a robot.
  
  Excellent idea, Jon! Many Roomba models have a 5V level serial port built in, so can directly communicate with a typical...
  
  Monday at 6:37 AM
- rjenkinsgb reacted to For The Popcorn's post in the thread I Wanna build a robot with Like.
  
  Like this? Maybe look at some of the cheap robot kits, both for ideas and to get your foot in the door. It's not likely you'll find...
  
  Monday at 6:28 AM
- rjenkinsgb replied to the thread I Wanna build a robot.
  
  Radio control type servos are very easy to control with any microcontroller, they just need a regular pulse with a set duration, with...
  
  Monday at 2:44 AM
- rjenkinsgb replied to the thread Impact of Tariffs on PCB Fab.
  
  For info, those are non-printing movements speeds, not speed while extruding. That's limited to the heating capacity of the hot end with...
  
  Monday at 2:15 AM
- rjenkinsgb replied to the thread Wierd makita battery.
  
  A single tap on the battery is definitely a bad design, as there is nothing to keep the cells in balance. It will degrade and fail...
  
  Jul 13, 2025
- rjenkinsgb reacted to AnalogKid's post in the thread ac current limiting with Like.
  
  No, you don't. Charging lithium batteries is more complex, and *much* more dangerous, than charging other battery chemistries. Also...
  
  Jul 13, 2025
- rjenkinsgb replied to the thread More fun with ws2812 this time XC8 and CLC.
  
  The method I came up with was a function to (You just updated the thread). Similar to your new post, but no bulk bitshifting. For each...
  
  Jul 12, 2025
- rjenkinsgb replied to the thread UART Basic Before Writing Code.
  
  The first character in UART stands for Universal - there is no "UART protocol". You can configure the device to support different...
  
  Jul 12, 2025
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Latest threads

Faulty heat air gun (dc motor) - problem to locate fault due to Intermittent fault
- Started by Grossel
- Yesterday at 10:06 AM
- Replies: 3
Repairing Electronics
Does US electric code allow branching ?
- Started by Externet
- Yesterday at 7:21 AM
- Replies: 4
General Electronics Chat
F
SiC FET disadvantages
- Started by Flyback
- Friday at 3:32 PM
- Replies: 0
Electronic Projects Design/Ideas/Reviews
A
Need Help with TDA7294 Stereo Amplifier
- Started by ahsrabrifat
- Friday at 9:38 AM
- Replies: 6
General Electronics Chat
@
Data is not transferring to Data register of SPI in MG32F157VCT6
- Started by @ADEngineer
- Friday at 5:43 AM
- Replies: 0
ARM

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