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<\/a><\/a> Nuestros queridos LEGO NXT<\/a> han cumplido m\u00e1s que suficiente con su misi\u00f3n, as\u00ed que este a\u00f1o nos hemos pasado a la nueva versi\u00f3n del robot, la EV3<\/a>.<\/p>\n Eso significa que ya no podemos programar los robots en NXC<\/a> usando BricxCC<\/a>, que en mi opini\u00f3n formaban una combinaci\u00f3n estupenda: software libre y programaci\u00f3n en C, muy adecuada para alumnos de grados de Ingenier\u00eda Inform\u00e1tica. Tras evaluar diferentes posibilidades, hemos decidido usar Simulink<\/a> para programarlos. Y, por ahora, echo en falta dos cosas importantes, que me hacen pensar que la vida con el NXT era mejor (enorme suspiro):<\/p>\n Los dongles wifi que he probado son el Netgear 300<\/a> (el \u00fanico que Lego recomienda es el Netgear 150<\/a>, pero ya no se encuentra f\u00e1cilmente), el Edimax N150<\/a> (que en muchas webs aparece como compatible con el anterior), y un TPLink<\/a> que he encontrado en el laboratorio y del que desconozco el modelo. El EV3 necesita conectarse a un router<\/a>. Con los tres dongles he podido conectarme al router de casa, pero s\u00f3lo con el Netgear 300 y el Edimax los ordenadores que he empleado han sido capaces de detectar el robot (basta con hacer un ping desde el ordenador a la IP del EV3), as\u00ed que todo lo que sigue se refiere a los dos primeros.<\/p>\n Algunas de las pruebas han requerido cambiar el firmware del EV3. Los diferentes firmware que he utilizado son las siguientes: 1.03 (descargable desde aqu\u00ed<\/a>), 1.03 adaptada para el dongle Edimax (descargada de aqu\u00ed<\/a> , aparece como 1.04 cuando se descarga en el robot), y 1.08 (descargada de aqu\u00ed<\/a>).<\/p>\n La tabla recoge todas las configuraciones de software que he probado junto con el resultado obtenido. Las figuras se incluyen al final de la entrada.<\/p>\n <\/a> Our beloved LEGO NXT<\/a> have heroically fulfilled their mission, so this year we have moved on to the new version of the robot, the EV3<\/a> robot.<\/p>\n This means that we no longer can program the robots\u00a0 in\u00a0NXC<\/a>\u00a0using BricxCC<\/a>, which in my opinion made a perfect match: open source software and C based programming, very suitable for students of Computer Science bachelors. After evaluating different options, we have chosen Simulink<\/a> for programming the robots. And, for now, I miss two main things which make me think that life was better with the NXT (massive sigh):<\/p>\n The WiFi dongles I have tried are the Netgear 300<\/a> (the only that Lego supports is the Netgear 150<\/a>, but it cannot be easily found nowadays),\u00a0 the\u00a0Edimax N150<\/a> (many webpages report that it is compatible with Netgear 150), and a TPLink<\/a>\u00a0 that I found in the lab (I unfortunately do not know the model). EV3 has to connect to a router<\/a>. The three dongles connected the robot to my home router, but only Netgear 300 and Edimax 150 assured that my laptops could detect the robot (with a ping from the laptop to the EV3’s IP), so all that is explained in the following only refers to the first two dongles.<\/p>\n Some of the test required changing the firmware of the EV3. These are the firmwares I have used: 1.03 (available here<\/a>), 1.03 adapted for the Edimax dongle (available here<\/a> , it is numbered as 1.04 when downloaded into the robot), and 1.08 (available here<\/a>).<\/p>\n The table shows all the software configurations I have tried along with the obtained result. Figures are included at the end of the post.<\/p>\n <\/p>\n Fig 1.- WiFi error with Matlab R2015a<\/p>\n Fig 2.- WiFi error with Matlab R2016b<\/p>\n
\n[In English]<\/a><\/p>\n\n
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\n[En espa\u00f1ol]<\/a><\/p>\n\n
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<\/a><\/p>\n![\"\"](\"http:\/\/jafma.net\/ana\/theweekendarchaeologist\/wp-content\/uploads\/errorWifiR2015a-300x169.png\")
<\/a><\/p>\n![\"\"](\"http:\/\/jafma.net\/ana\/theweekendarchaeologist\/wp-content\/uploads\/pantallazowifiR2016-300x169.png\")
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