Search found 1079 matches

by chipfryer27
Sun May 19, 2024 3:26 pm
Forum: General
Topic: DSP made easy
Replies: 2
Views: 2636

Re: DSP made easy

Hi So hot up in the Ivory Tower that I ddn't need an iron to melt the solder.... Put together that little noise generator and have to say the quality of the kit is very good. Once complete I connected to a scope. 100_0240.JPG Bear in mind I only paid a few pounds.... Next will be to create some filt...
by chipfryer27
Sat May 18, 2024 12:25 pm
Forum: Bug Reports
Topic: arduino INTERRUPTS - IOC PORTD... do not select..
Replies: 4
Views: 881

Re: arduino INTERRUPTS - IOC PORTD... do not select..

Hi

My view is it is Interrupt on Change, any change, therefore it is up to you how you handle the response.

Does the datasheet specifically state that you can mask IOC to suit your specific needs? I'm not an expert on that chip but I do remember Int0/1 can be masked.

Hope this helps.

Regards
by chipfryer27
Sat May 18, 2024 7:44 am
Forum: Bug Reports
Topic: arduino INTERRUPTS - IOC PORTD... do not select..
Replies: 4
Views: 881

Re: arduino INTERRUPTS - IOC PORTD... do not select..

Hi I'm not an expert on UNO. Int0 and Int1 can be selected to trigger on various "edges" as documented in the interrupt properties. IOC on the remaining ports do set a flag (green) which indicates a trigger on both edges (Interrupt On Change). If you set pins, close and reopen the window you will se...
by chipfryer27
Fri May 17, 2024 3:07 pm
Forum: General
Topic: Matrix Keypad Issues Disturbance
Replies: 4
Views: 814

Re: Matrix Keypad Issues Disturbance

Hi
when I put my hand near my Arduino it starts reading random inputs
That sounds like the inputs are floating (unconnected, no weak pull-up / down) and when your hand goes near, the capacitive effect is causing the inputs to change.

I'd confirm your connections to start with.

Regards
by chipfryer27
Fri May 17, 2024 1:22 pm
Forum: Bug Reports
Topic: SR04 Ultrasonic Sensor
Replies: 10
Views: 770

Re: SR04 Ultrasonic Sensor

Hi Following on from the above. This time I used the same setup as documented in the above posts but using software mode with the following results Measured (cm) / Displayed (cm) / Pulse Width (mS) 109 / 78 / 6.27462 120 / 86 / 6.9197 140 / 100 / 8.0691 144 / 103 / 8.32248 162 / 116 / 9.3676 I have ...
by chipfryer27
Wed May 15, 2024 10:12 pm
Forum: Projects - Embedded
Topic: Esolangs - Brainf**k. Mandelbrot set as you've never seen before..
Replies: 4
Views: 389

Re: Esolangs - Brainf**k. Mandelbrot set as you've never seen before..

Hi

Impressive stuff indeed.

I hope that's a screenshot from your Sinclair :)

Regards
by chipfryer27
Tue May 14, 2024 8:17 am
Forum: App Developer
Topic: Worked examples HTTP via serial port
Replies: 9
Views: 1026

Re: Worked examples HTTP via serial port

Hi

Have you looked at the WiKi example?

Regards
by chipfryer27
Mon May 13, 2024 1:47 pm
Forum: App Developer
Topic: Worked examples HTTP via serial port
Replies: 9
Views: 1026

Re: Worked examples HTTP via serial port

Hi

You need to be a bit more specific in your requirement.

Android, Linux and Windows already have serial programs that can do such.

What is it you actually want it to do?

Regards
by chipfryer27
Sun May 12, 2024 4:46 pm
Forum: Bug Reports
Topic: SR04 Ultrasonic Sensor
Replies: 10
Views: 770

Re: SR04 Ultrasonic Sensor

Hi Lab is in a bit of a state just now, in the process of a good clean out, getting rid of the "might come in handy" pile amongst a LOT of acquired useless junk. That's my "Ivory Tower" up in the clouds, i.e. the mezzanine floor I built to elevate my status :) Scopes / analysers / soldering / test e...
by chipfryer27
Sun May 12, 2024 2:47 pm
Forum: General
Topic: DSP made easy
Replies: 2
Views: 2636

Re: DSP made easy

Hi Whenever I could squeeze in the time I've been working my way through the tutorials and decided I needed a "white noise" generator so that I can experiment with filters a bit better. Six weeks later I'm in possession of a Chinese generator. Now I knew it was a kit but must admit to being surprise...