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Shane Kennedy (@TheCaptain)

Electronics test and design engineer. General engineer, boat owner, innovator and hobbyist

Re: Reference Designs for Solar Inverters?

Reply posted 2 years ago (04/23/2022)
Have a look on Arduino pages

Re: How to get a signal from 74595

Reply posted 4 years ago (01/11/2020)
If you don't have a scope, the first thing I would do is reduce your clock rate and put an LED on the S/R output.  If you do, then test the o/p for a data stream...
Re: H-bridge drivers, there are some MosFET drivers which which will do that, including a dead-time in between switching.  If I remember correctly, they have an...
I have done just that with an Arduino, though for a slightly different purpose.  2 independent  (3) interleaved PWM outputs (total 6 o/ps), with frequency and...

Re: Choice of microcontroller for a project

Reply posted 5 years ago (05/11/2019)
For learning, and a one-off, I strongly suggest an Arduino, particularly one with a 32U4 for speed and versatility.  There are joystick and stepper-motor "shields"...

Re: How does an embedded system OS work? LPC3250 ARM9

Reply posted 5 years ago (05/09/2019)
You may be able to find some extra libraries to support your functions for an OS-less device.  If you are using a licensed compiler, you could ask them.  There...

Re: How does an embedded system OS work? LPC3250 ARM9

Reply posted 5 years ago (05/09/2019)
some years ago, I asked a friend how he woud define an embedded system.  The answer was "any system where the user doesn't have access to a reset button or power...

Re: Fundamental frequency of a Guitar string

Reply posted 6 years ago (06/29/2018)
Have a look at Arduino.  I am sure that someone else has already done this.

Re: Fundamental frequency of a Guitar string

Reply posted 6 years ago (06/29/2018)
If your project is about synthesising sound rather than the measurement of the sound, you could use a tuner or spectrum analyser app on a smartphone.

Re: Digital Output does not have continuity to ground?

Reply posted 8 years ago (08/15/2016)
Another, rather enigmatic one.  A factory producing AC/DC magnetic relays.  Testing them involved connecting a small AC across them.  One customer used them...

Re: Digital Output does not have continuity to ground?

Reply posted 8 years ago (08/15/2016)
Reminds me of a story about a new technician who was given an old-style buzzer which worked at 300mA, and a box of 1/8th amp fuses to test.

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