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Full Discussion: Arduino Robot Tank Project
Special Forums Hardware Arduino Robot Tank Project Post 303044514 by Neo on Monday 24th of February 2020 11:28:16 PM
Old 02-25-2020

This mini robot tank is fully assembled. Keyestudio sent me the sample code for an earlier version (version 1), not the current version (version 2), which I have attached here (the code is open and free to use from Keyestudio for similar projectsm, but I recommend the Mini Robot Tank V2 project kit).

At the moment, I'm busy on other projects, still hoping to get the V2 code, and need to buy the batteries; but hope to this this up and running in the not-to-distant future and sending data via MQTT and Node-RED, as "just another node on the network".

Arduino Robot Tank Project-img_9185jpg

Arduino Robot Tank Project-img_9184jpg

Arduino Robot Tank Project-img_9183jpg

Mini Robot Tank V1 Code (Photos are of V2, not V1 robot):

Arduino Robot Tank Project-screen-shot-2020-02-25-110444-amjpg
Test Your Knowledge in Computers #106
Difficulty: Easy
A kernel is at the heart of the Linux OS; and this kernel acts as an interface between the user and underlying hardware.
True or False?

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LWP::RobotUA(3) 					User Contributed Perl Documentation					   LWP::RobotUA(3)

LWP::RobotUA - A class for Web Robots SYNOPSIS
require LWP::RobotUA; $ua = new LWP::RobotUA 'my-robot/0.1', ''; $ua->delay(10); # be very nice, go slowly ... # just use it just like a normal LWP::UserAgent $res = $ua->request($req); DESCRIPTION
This class implements a user agent that is suitable for robot applications. Robots should be nice to the servers they visit. They should consult the /robots.txt file to ensure that they are welcomed and they should not make requests too frequently. But, before you consider writing a robot take a look at <URL:>. When you use a LWP::RobotUA as your user agent, then you do not really have to think about these things yourself. Just send requests as you do when you are using a normal LWP::UserAgent and this special agent will make sure you are nice. METHODS
The LWP::RobotUA is a sub-class of LWP::UserAgent and implements the same methods. In addition the following methods are provided: $ua = LWP::RobotUA->new($agent_name, $from, [$rules]) Your robot's name and the mail address of the human responsible for the robot (i.e. you) are required by the constructor. Optionally it allows you to specify the WWW::RobotRules object to use. $ua->delay([$minutes]) Set the minimum delay between requests to the same server. The default is 1 minute. $ua->use_sleep([$boolean]) Get/set a value indicating whether the UA should sleep() if requests arrive too fast (before $ua->delay minutes has passed). The default is TRUE. If this value is FALSE then an internal SERVICE_UNAVAILABLE response will be generated. It will have an Retry-After header that indicates when it is OK to send another request to this server. $ua->rules([$rules]) Set/get which WWW::RobotRules object to use. $ua->no_visits($netloc) Returns the number of documents fetched from this server host. Yes I know, this method should probably have been named num_visits() or something like that. :-( $ua->host_wait($netloc) Returns the number of seconds (from now) you must wait before you can make a new request to this host. $ua->as_string Returns a string that describes the state of the UA. Mainly useful for debugging. SEE ALSO
LWP::UserAgent, WWW::RobotRules COPYRIGHT
Copyright 1996-2000 Gisle Aas. This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself. libwww-perl-5.65 2001-04-27 LWP::RobotUA(3)

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