Видео 58
Просмотров 409 395

System Integration Testing for Paddington Underground Station

1:01

Digital Microscope Review (Joyalens JL249MS)

31:53

How a 555 Works as a Timer.

30:13

Magtame Magnetic USB Cable Range

13:53

Gochifix LG303 3-in-1 Oscilloscope, Multi Meter and Signal Generator

1:11:49

Switch De-Bounce Using Schmitt

12:41

The 555 Verdict

A quick follow up to my 555 Video published a few weeks ago (link below) in which I stated the 555 is NOT a timer. A rather controversial statement which of course received many mixed opinions so I thought I would put it to a Polling Vote to determine the general consensus. Thank to all those who commented and everyone who took part in the poll (regardless of which side of the fence you stood).
Link to the original 555 Video here:-
ruclips.net/video/3lEN6hEGUmE/видео.htmlsi=7Dt99auDHU5UtJKQ

Видео

System Integration Testing for Paddington Underground Station

1:01

System Integration Testing for Paddington Underground Station

Просмотров 42328 дней назад

A short Video clip illustrating the system integration testing environment setup at our Technical Centre in Stevenage. The equipment you see has been temporarily arranged and commissioned to allow offsite assurance testing of the new station management and sub-systems destined for Paddington Underground Station. This was conducted in May 2024 and revealed several configuration alignment discrep...

Digital Microscope Review (Joyalens JL249MS)

31:53

Digital Microscope Review (Joyalens JL249MS)

Просмотров 706Месяц назад

A review of the Joyalens JL249MS Digital Microscope. A 10inch Ultra HD Digital Microscope with 2040 x optical Zoom and 3 x Digital Zoom with the added benefit of HDMI Out meaning you can connect to an external monitor or TV. I take you through a thorough test drive of the functions, features and how to navigate the extensive menu options. Testing each lens, the HDMI output, digital zoom, PC con...

30:13

How a 555 Works as a Timer.

Просмотров 159 тыс.Месяц назад

In this video I explain the building blocks of a 555 chip and how it interacts with the components you connect around it to become a “Timer”! I talk through each stage of the 555 including - Voltage Divider (comprising of three 5K resistors) - Two Comparators - The Flip-Flop - NPN and PNP Transistors utilised for Discharge and Reset We explore the Charge and Discharge times as the capacitor osc...

13:53

Magtame Magnetic USB Cable Range

Просмотров 1,3 тыс.4 месяца назад

A review of this innovative range of “Magnetic” USB cables which help keep your tech organised and tidy. We will take a look at how these flexible braided magnetic leads from Magtame that can improve your working and storage space. I also do some basic electrical performance checks to compare the DC resistance and find out just how many of the USB-C pins are actual connected through end to end....

Gochifix LG303 3-in-1 Oscilloscope, Multi Meter and Signal Generator

1:11:49

Gochifix LG303 3-in-1 Oscilloscope, Multi Meter and Signal Generator

Просмотров 8244 месяца назад

A complete test drive of the Gochifix LG303 3-in-1 Oscilloscope, Multi Meter and Signal Generator. In this video I talk you through every mode and function of this feature rich meter. I also explain and demonstrate some of the terminology such as meter count, coupling and bandwidth. At the time of recording this video, the meter was not available in the UK but that may change. If you are locate...

12:41

Switch De-Bounce Using Schmitt

Просмотров 1,8 тыс.5 месяцев назад

Using a Schmitt trigger to eliminate switch bounce. In this video I use a combination of a capacitor, resistor and a Hex Schmitt trigger IC to provide an almost perfect square output from a mechanical switch or push button. The IC I use is a Toshiba TC4584 which incorporates six Schmitt triggers, but there are many many alternatives out there including the Texas Instruments SN7414N. If your int...

9:41

PKAE Timer

Просмотров 5635 месяцев назад

The most simple, but most used Arduino Library for controlling multiple timers. This simple library makes you Arduino code more intuitive, simpler, tidier and more enjoyable to write. You can download the library and a copy of the example code used from the link below:- 1drv.ms/f/s!At-1QJjNI_MQcrRYoKmHpDpn2Sw?e=adpRHe If you have any questions, then please leave a comment and I will try to answ...

18:31

Ideas for Using Jumpers

Просмотров 2,6 тыс.5 месяцев назад

Using header pins and low-cost jumpers can sometimes be a better solution than switches. In this video I share a few different ways of arranging header pins/jumpers in your electronics project to achieve various effects. The Jumpers used in this video which feature a convenient tag (or “handle”) can be purchased from Amazon at the link below:- amzn.to/48W1zpm For more information on Voltage Div...

10:34

Arduino Power Latch (Single Button)

Просмотров 1,6 тыс.6 месяцев назад

Using a single push button to control the power On/Off AND be used for a normal Input switch in your Arduino code. Using a P-Channel MOSFET, NPN BJT, a few resistors, diodes and a switch, this handy circuit provides a lot of functionality. There is no current draw in the OFF state. This video is thanks to a comment/question from one of my viewers in response to a previous power latching circuit...

1:52

Soldering Tips

Просмотров 5836 месяцев назад

A bit of fun, soldering tips and other recommended stuff… Assembling one of my Remote PAVA Triggering PCBs and sharing some tips for soldering better. 1. Use Isopropyl Alcohol & lint free cloth to clean the surface first. 2. Start with the shallow components first (like resistors) and work upward to deeper components like the ESP32 board. That way the component presses against the board whilst ...

9:06

Measuring Output Impedance

Просмотров 1,8 тыс.6 месяцев назад

In this video I follow up on a viewer’s comment that was posted on my “Impedance Matching” video (link below). ruclips.net/video/5p0v7ZU0WcA/видео.html The comment asked to demonstrate how you would go about measuring the Output Impedance of a laptop’s headphone jack. Using a standard Multimeter, a resistor and a bit of ohms law, I demonstrate how this is achievable. If you are uncertain about ...

5:56

Impedance Matching

Просмотров 2,7 тыс.7 месяцев назад

In this video I explain why “impedance matching” is an important factor in maximising the transfer of power from a supply source to the load, or output. If you are not confident about what “impedance” is, or how that relates to resistance, then please watch my last video “Impedance Explained” which can be found here:- ruclips.net/video/3QtpaICzSNc/видео.html Following a viewer's comment I have ...

22:35

Impedance Explained.

Просмотров 193 тыс.7 месяцев назад

In this video I compare similarities from the physical world that you can see and touch, to help share how I think about Impedance. You will learn about “Opposing” forces called “Reactance” and how these, together with “Resistance” combine to form what we call “Impedance”. Whilst I do go through some formulas, these are not the key intended purpose of the video. For many people, the formulas ar...

5:02

RGB Control for my Lego Jeep

Просмотров 2137 месяцев назад

Re-purposing electronic gadgets to make life easier. In this video I show how I re-purposed a cheap I/R controlled RGB light to control the LEDs I had already fitted to my Technical Lego Jeep that sits in my office. Re-purposing stuff is good fun, cheap, saves waste and helps you learn….. I just found these very similar looking RGBs on amazon and they are dirt cheap, £15.99 for a pack of 6! amz...