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Published 20 hours ago • verified publisher icon bromagosa

Distance sensor not working online

Open draboso opened this issue 4 years ago • 3 comments

Hi, I'm working on a Chromebook which doesn't work properly on the last app (being unable to disable web security)

so I try it online, using sa5Firmata to work with the hc-sr04, and I get "Inside: Error. This block needs a device running SA5Firmata_tone or SA5Firmata_ir firmware."

Is there anything I could do to avoid the problem?

Thanks a lot, P.D: I'd swear last year we (some students) could use it on the app

draboso avatar Feb 24 '21 19:02 draboso

Hi @draboso,

Two issues here:

  • About firmware Standard firmata is not a solution for the ultrasonic sensor features. You need an advanced firmata. There are different solutions (look at our web). And yes, SA5Firmata is a fine solution here. If you don't need IR features, the best solution is SA5Firmata_tone. More info here I guess you know their blocks are into the SA5Firmata library (just preloaded in any current Snap4Arduino version).

  • About chromebooks The best option to run Snap4Arduino in Chromebooks i to run it online at http://snap4arduino.rocks/run/# using the Snap4Arduino connector. But, be careful! Maybe you are using the old "Snap4Arduino app". It is not updated and, its biggest problem, is that it can not run JS code and so, more libraries are KO. Be sure you use the "Snap4Arduino connector". You can find it on the ChromeWebStore https://chrome.google.com/webstore/detail/snap4arduino-connector/fhmkennllhhclkcjcdaegceilcefedle or you can install it from our web.

That's all,

Joan

jguille2 avatar Feb 24 '21 22:02 jguille2

Hi, thanks for the answer, but maybe I did not explain myself properly, or I am not understanding something.

I used Snap4Arduino online and the SA5Firmata, but I got this message: "Inside: Error. This block needs a device running SA5Firmata_tone or SA5Firmata_ir firmware."

thanks

draboso avatar Feb 25 '21 09:02 draboso

Hi @draboso,

Maybe my answer was not very clear... but it's pretty trying to answer your really concrete question.

  • Your error is clear. Is about firmware. And my first part of the answer is the key. Install SA5Firmata_tone if you want to use their blocks!
  • My second part is about your comments related to the "last app" (on the last app (being unable to disable web security)). Your issue is about firmware, not about the "last app" but it is interesting to understand the situation: "old app" (Snap4Arduino extension) is not updated and needs to disable web security for some libraries) but current app (Snap4Arduino connector) has not these problems. Joan

jguille2 avatar Feb 27 '21 13:02 jguille2