Search found 1777 matches

by chipfryer27
Thu Apr 09, 2026 1:47 am
Forum: General
Topic: MQTT strange problem
Replies: 5
Views: 1327

Re: MQTT strange problem

Hi Bob

If you are using MQTT 3.1 you might be running into problems if you exceed maximum allowable lengths. Client ID for example used to be restricted to 23 characters.

Just a guess.

Regards
by chipfryer27
Tue Apr 07, 2026 7:17 am
Forum: General
Topic: ESP32 WROOM serial port woes
Replies: 9
Views: 1508

Re: ESP32 WROOM serial port woes

Hi Bob I feel your frustration both with devices and toolchain. I do have a few varieties kicking around and did for them manage to find pinouts that worked. Although not trustworthy by any means. On one board I could find no mention of any restrictions on a certain pin usage, but of course discover...
by chipfryer27
Mon Apr 06, 2026 12:55 am
Forum: General
Topic: Fiber comms
Replies: 3
Views: 1317

Re: Fiber comms

Hi Probably not difficult at all to interface to. It uses plastic fibre which will have a loss of around a db/m, yep, per metre. Connector loss will be around 5db assuming you make a good connection and have a sharp Stanley :) Most likely application would be in a noisy environment or when electrica...
by chipfryer27
Sun Apr 05, 2026 3:48 pm
Forum: General
Topic: AI
Replies: 2
Views: 1076

Re: AI

Perhaps AI created your post as I believe a human would use the term "voila" instead of the Hindi suffix... 😀
by chipfryer27
Tue Mar 17, 2026 12:11 pm
Forum: Tips & Tricks
Topic: I2C Sniffer
Replies: 4
Views: 7029

Re: I2C Sniffer

Hi Bob

Only in my phone just now, but if you go to the I2c wiki page for the i2c component you will find about half way down a link for the "sniffer" although no longer called that now. Its something like address scanner

Regards
by chipfryer27
Fri Mar 13, 2026 1:09 am
Forum: Projects - Embedded
Topic: AJ-SR04M Returning 9999 while using the AJ-SR04M Component
Replies: 17
Views: 7736

Re: AJ-SR04M Returning 9999 while using the AJ-SR04M Component

Hi One way might be to use the Mapping Function component. Briefly you enter expected input Min / Max values (e.g. 0-9999) and then the respective output Min / Max values that you want (e.g. 0 - 100). I have probably overcomplicated by trying to explain, but it is a very handy component and very eas...
by chipfryer27
Thu Mar 12, 2026 3:33 am
Forum: General
Topic: HexToDecimal
Replies: 4
Views: 1847

Re: HexToDecimal

Hi

Not sure I know what you want to do as you don't say what a usable form actually is.

You want to take a hex number arriving over your UART, then do what with it?

Regards
by chipfryer27
Sat Mar 07, 2026 8:36 pm
Forum: Projects - Embedded
Topic: AJ-SR04M Returning 9999 while using the AJ-SR04M Component
Replies: 17
Views: 7736

Re: AJ-SR04M Returning 9999 while using the AJ-SR04M Component

Hi

I believe medelec35 did some posts on the HC-SR04 regarding timing, so it may be worth doing a quick search for them.

Regards
by chipfryer27
Sat Mar 07, 2026 8:21 am
Forum: Projects - Embedded
Topic: AJ-SR04M Returning 9999 while using the AJ-SR04M Component
Replies: 17
Views: 7736

Re: AJ-SR04M Returning 9999 while using the AJ-SR04M Component

Hi

That board appears to be able to communicate using different protocols, however without your chart we have no idea how you have setup. If you post your chart it would help, and also detail connections.

Regards
by chipfryer27
Sun Mar 01, 2026 12:10 pm
Forum: Bug Reports
Topic: TM1637
Replies: 20
Views: 7330

Re: TM1637

Hi

As mentioned, other than an "outline" shape I can't see your component at all using your chart. However I can add the component with no issue so I'm guessing there is some corruption somewhere.

Good that it is working in hardware though.

Regards