{"id":6014,"date":"2020-11-06T01:46:12","date_gmt":"2020-11-06T01:46:12","guid":{"rendered":"http:\/\/rogerbit.com\/wprb\/?p=6014"},"modified":"2020-11-06T01:46:12","modified_gmt":"2020-11-06T01:46:12","slug":"automatic-hand-alcohol-dispenser-without-arduino-or-microcontrollers","status":"publish","type":"post","link":"https:\/\/rogerbit.com\/wprb\/2020\/11\/automatic-hand-alcohol-dispenser-without-arduino-or-microcontrollers\/","title":{"rendered":"Automatic hand alcohol dispenser without arduino or microcontrollers"},"content":{"rendered":"

<\/iframe><\/p>\n<p>In this tutorial we will see how to create an automatic alcohol dispenser with water, to disinfect hands.\u00a0It is activated by bringing your hand closer to the reflective infrared sensor tcrt5000l, whose signal is amplified by a ua741cp operational amplifier.\u00a0The output of this integrated is connected to the base of the tip42c pnp transistor, which is responsible for controlling a direct current motor.\u00a0The motor, together with other 3d-printed objects, create an electric pump, which is capable of supplying alcohol to our hands with a hose that can be taken from a macro dropper, used in medicine.<\/p>\n<hr \/>\n<p>Maybe you may be interested in projects in arduino, pic, robotics, telecommunications, subscribe at\u00a0\u00a0<a href=\"http:\/\/www.youtube.com\/user\/carlosvolt?sub_confirmation=1\">http:\/\/www.youtube.com\/user\/carlosvolt?sub_confirmation=1 a<\/a>\u00a0\u00a0lot of videos with complete source code and diagrams<\/p>\n<div id=\"ubm-banners-rotation-n1\" data-interval=\"4000\" class=\"ubm_banners_rotation\" style=\"overflow: hidden; width: 200px; height: 150px;\"><div id=\"3_ubm_banner\" class=\"ubm_rotating_banner\"><a href=\"https:\/\/bit.ly\/3aXRDAu\" target=\"_blank\" rel=\"dofollow\"><img src=\"https:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/useful_banner_manager_banners\/3-2-logo youtube.png\" width=\"100%\" height=\"100%\" alt=\"SUSCRIBETE A NUESTRO CANAL DE YOUTUBE, TUTORIALES GRATIS\" \/><\/a><\/div><\/div>\n<hr \/>\n<p>Electronic diagram<\/p>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/circuito.png\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-5597\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/circuito.png\" sizes=\"(max-width: 807px) 100vw, 807px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/circuito.png 807w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/circuito-300x116.png 300w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/circuito-768x297.png 768w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/circuito-600x232.png 600w\" alt=\"\" width=\"807\" height=\"312\" \/><\/a><\/p>\n<p>PCB<\/p>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/pcb.png\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-5598\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/pcb.png\" sizes=\"(max-width: 479px) 100vw, 479px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/pcb.png 479w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/pcb-300x200.png 300w\" alt=\"\" width=\"479\" height=\"320\" \/><\/a><\/p>\n<p>TCRT500L<\/p>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/tcrt5000l.jpg\"><img loading=\"lazy\" class=\"alignnone wp-image-5599\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/tcrt5000l.jpg\" sizes=\"(max-width: 196px) 100vw, 196px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/tcrt5000l.jpg 568w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/tcrt5000l-300x276.jpg 300w\" alt=\"\" width=\"196\" height=\"180\" \/><\/a><\/p>\n<h5>DESCRIPTION<\/h5>\n<p>The TCRT5000 and TCRT5000L are reflective sensors, which include an infrared emitter and a phototransistor in a lead package that blocks visible light.\u00a0Package includes two mounting clips.\u00a0TCRT5000L is the long lead version.<\/p>\n<h5>FEATURES<\/h5>\n<p>\u2022 Package type: leaded<br \/>\n\u2022 Detector type: phototransistor<br \/>\n\u2022 Dimensions (L x W x H in mm): 10.2 x 5.8 x 7<br \/>\n\u2022 Maximum operating distance: 2.5 mm<br \/>\n\u2022 Operating range within> 20% relative collector<br \/>\ncurrent: 0.2mm to 15mm<br \/>\n\u2022 Typical output current under test: IC = 1mA<br \/>\n\u2022 Daylight blocking filter<br \/>\n\u2022 Emitter wavelength: 950nm<br \/>\n\u2022 Lead-free (Pb) released solder<br \/>\n\u2022 RoHS 2002 compliant \/ 95 \/ EC and in<br \/>\naccordance with WEEE 2002\/96 \/ EC<br \/>\nAPPLICATIONS<br \/>\n\u2022 Position sensor for shaft encoder<br \/>\n\u2022 Detection of reflective material such as paper, IBM cards,<br \/>\nmagnetic tapes, etc.<br \/>\n\u2022 Limit switch for mechanical movements in VCR<br \/>\n\u2022 General purpose: where space is limited<\/p>\n<h5>TIP42C<\/h5>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/tip42c.jpg\"><img loading=\"lazy\" class=\"alignnone wp-image-5601\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/tip42c.jpg\" sizes=\"(max-width: 213px) 100vw, 213px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/tip42c.jpg 781w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/tip42c-300x293.jpg 300w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/tip42c-768x751.jpg 768w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/tip42c-600x587.jpg 600w\" alt=\"\" width=\"213\" height=\"208\" \/><\/a><\/p>\n<ul>\n<li>Transistor Polarity: PNP<\/li>\n<\/ul>\n<h5>MAXIMUM SPECIFICATIONS<\/h5>\n<ul>\n<li>Total device dissipation (Pc): 65 W<\/li>\n<li>Collector-base voltage (Vcb): 140 V<\/li>\n<li>Collector-emitter voltage (Vce): 100 V<\/li>\n<li>Emitter-base voltage (Veb): 5 V<\/li>\n<li>Maximum DC collector current (Ic): 6 A<\/li>\n<li>Maximum operating temperature (Tj): 150 \u00b0 C<\/li>\n<\/ul>\n<h5>ELECTRICAL CHARACTERISTICS<\/h5>\n<ul>\n<li>Current – Gain – Bandwidth Product (ft): 3 MHz<\/li>\n<li>Continuous current gain (hfe): 20<\/li>\n<li>Packaging \/ Case: TO220<\/li>\n<\/ul>\n<h5>UA741CP<\/h5>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/ua741.jpg\"><img loading=\"lazy\" class=\"alignnone wp-image-5607\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/ua741.jpg\" sizes=\"(max-width: 242px) 100vw, 242px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/ua741.jpg 889w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/ua741-282x300.jpg 282w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/ua741-768x816.jpg 768w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/ua741-600x638.jpg 600w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/ua741-820x872.jpg 820w\" alt=\"\" width=\"242\" height=\"257\" \/><\/a><\/p>\n<h5>characteristics<\/h5>\n<p>\u2022 Short circuit protection<br \/>\n\u2022 Zero offset voltage capability<br \/>\n\u2022 Large differential and common mode voltage<\/p>\n<h5>Ranges<\/h5>\n<p>\u2022 No frequency compensation required<br \/>\n\u2022 No blocking<\/p>\n<h5>Applications<\/h5>\n<p>\u2022 DVD recorders and players<br \/>\n\u2022 Professional audio mixers<\/p>\n<h5>Description<\/h5>\n<p>The \u00b5A741 device is a general purpose operating device.<br \/>\nvoltage compensated zero capacity amplifier.<br \/>\nThe high common mode input voltage range and the<br \/>\nabsence of blocking make the amplifier ideal for<br \/>\nvoltage follower applications.\u00a0The device is<br \/>\nshort-circuit protected and internal frequency<br \/>\ncompensation ensures stability without external<br \/>\ncomponents.<\/p>\n<h5>DIODE 1N4007<\/h5>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/1n4007.png\"><img loading=\"lazy\" class=\"alignnone wp-image-5602\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/1n4007.png\" sizes=\"(max-width: 222px) 100vw, 222px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/1n4007.png 337w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/1n4007-289x300.png 289w\" alt=\"\" width=\"222\" height=\"230\" \/><\/a><\/p>\n<h5>RESISTOR 10K<\/h5>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/10k.jpg\"><img loading=\"lazy\" class=\"alignnone wp-image-5603\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/10k.jpg\" sizes=\"(max-width: 159px) 100vw, 159px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/10k.jpg 700w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/10k-150x150.jpg 150w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/10k-300x300.jpg 300w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/10k-600x600.jpg 600w\" alt=\"\" width=\"159\" height=\"159\" \/><\/a><\/p>\n<h5>RESISTOR 150 OHM<\/h5>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/150.jpg\"><img loading=\"lazy\" class=\"alignnone wp-image-5604\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/150.jpg\" sizes=\"(max-width: 174px) 100vw, 174px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/150.jpg 400w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/150-150x150.jpg 150w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/150-300x300.jpg 300w\" alt=\"\" width=\"174\" height=\"174\" \/><\/a><\/p>\n<h5>RESISTOR 220 OHM<\/h5>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/220.jpg\"><img loading=\"lazy\" class=\"alignnone wp-image-5605\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/220.jpg\" sizes=\"(max-width: 151px) 100vw, 151px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/220.jpg 342w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/220-150x150.jpg 150w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/220-300x300.jpg 300w\" alt=\"\" width=\"151\" height=\"151\" \/><\/a><\/p>\n<p> <\/p>\n<h5>MOTOR<\/h5>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/motor.jpg\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-5608\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/motor.jpg\" alt=\"\" width=\"257\" height=\"203\" \/><\/a><\/p>\n<h5>WATER PUMP (PREFERRED)<\/h5>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/bomba.jpg\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-5609\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/bomba.jpg\" alt=\"\" width=\"246\" height=\"205\" \/><\/a><\/p>\n<h5>MACRO DRIPPER<\/h5>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/equipo-de-infusion.gif\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-5610\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/equipo-de-infusion.gif\" alt=\"\" width=\"236\" height=\"322\" \/><\/a><\/p>\n<h5>POTENTIOMETER<\/h5>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/potenciometro-de-presicion-10k.jpg\"><img loading=\"lazy\" class=\"alignnone wp-image-5618\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/potenciometro-de-presicion-10k.jpg\" sizes=\"(max-width: 230px) 100vw, 230px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/potenciometro-de-presicion-10k.jpg 300w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/potenciometro-de-presicion-10k-150x150.jpg 150w\" alt=\"\" width=\"230\" height=\"230\" \/><\/a><\/p>\n<h5>EXPERIMENTAL PLATE<\/h5>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/placa5x5.jpg\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-5611\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/placa5x5.jpg\" alt=\"\" width=\"257\" height=\"239\" \/><\/a><\/p>\n<h5>ARMED CIRCUIT ON EXPERIMENTAL BOARD<\/h5>\n<p>To put together this entire project, we can put it together on an experimental board like the one published above, or on a protoboard.<\/p>\n<p>This is good for the experimentation stage, but once we have everything set up and working correctly, we must take the next step.<\/p>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/IMG_20200607_200040876.jpg\"><img loading=\"lazy\" class=\"alignnone size-large wp-image-5613\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/IMG_20200607_200040876-1024x768.jpg\" sizes=\"(max-width: 1024px) 100vw, 1024px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/IMG_20200607_200040876-1024x768.jpg 1024w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/IMG_20200607_200040876-300x225.jpg 300w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/IMG_20200607_200040876-768x576.jpg 768w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/IMG_20200607_200040876-600x450.jpg 600w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/IMG_20200607_200040876-820x615.jpg 820w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/IMG_20200607_200040876-1320x990.jpg 1320w\" alt=\"\" width=\"1024\" height=\"768\" \/><\/a><\/p>\n<p>Subsequently, the final circuit was designed, and the gerber files necessary to order the printed circuit through.<\/p>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/pcb-1-e1591572083143.png\"><img loading=\"lazy\" class=\"alignnone wp-image-5614\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/pcb-1-e1591572083143-1024x675.png\" sizes=\"(max-width: 437px) 100vw, 437px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/pcb-1-e1591572083143-1024x675.png 1024w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/pcb-1-e1591572083143-300x198.png 300w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/pcb-1-e1591572083143-768x507.png 768w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/pcb-1-e1591572083143-600x396.png 600w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/pcb-1-e1591572083143-820x541.png 820w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/pcb-1-e1591572083143-1320x871.png 1320w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/pcb-1-e1591572083143.png 1504w\" alt=\"\" width=\"437\" height=\"288\" \/><\/a><\/p>\n<p>Download this gerber file from here ->\u00a0\u00a0<a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/Gerber_PCB_DISPENZADOR_DE_ALCOHOL.zip\">Gerber_PCB_DISPENSADOR_DE_ALCOHOL<\/a><\/p>\n<p>3D FILES<\/p>\n<p><a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/3D.png\"><img loading=\"lazy\" class=\"alignnone size-large wp-image-5623\" src=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/3D-1024x548.png\" sizes=\"(max-width: 1024px) 100vw, 1024px\" srcset=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/3D-1024x548.png 1024w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/3D-300x160.png 300w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/3D-768x411.png 768w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/3D-600x321.png 600w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/3D-820x439.png 820w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/3D-1320x706.png 1320w, http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/3D.png 1363w\" alt=\"\" width=\"1024\" height=\"548\" \/><\/a><\/p>\n<p>If you have a 3D printer, you can download the STL files, to print the pump and the bottle if you want to build, this hand sanitizer, or you can buy a submersible water pump, very cheap anywhere on the internet and use any plastic container that have unoccupied at home.<\/p>\n<p>Download the STL file here ->\u00a0\u00a0<a href=\"http:\/\/rogerbit.com\/wprb\/wp-content\/uploads\/2020\/06\/sanitizador.zip\">sanitizer<\/a><\/p>\n<hr \/>\n<p>\u2b50\ufe0fSUBSCRIBE: https:\/\/www.youtube.com\/user\/carlosvolt?sub_confirmation=1 (Don’t forget to activate it\u00a0\ud83d\udd14)<\/p>\n<p>\ud83d\udc49Secondary channel: https:\/\/www.youtube.com\/channel\/UCjES9aB4g1F3IQbAk2nWCZg<\/p>\n<p>\ud83d\udc49Instagram: https:\/\/www.instagram.com\/carlosvolt_tutoriales\/<\/p>\n<p>\ud83d\udc49Tik Tok: https:\/\/www.tiktok.com\/@carlosvolt<\/p>\n<p>\ud83d\udc49Fanpage: https:\/\/www.facebook.com\/rogerbitfanpage\/<\/p>\n<p>\ud83d\udc49Facebook: https:\/\/www.facebook.com\/groups\/RogerBit<\/p>\n<p>\ud83d\udc49Twitter: https:\/\/twitter.com\/rogerbit_<\/p>\n<p>\ud83d\udc49Donaciones por paypal https:\/\/goo.gl\/824Dnm o donacion@rogerbit.com<\/p>\n<p>\ud83d\udc49Website: https:\/\/www.rogerbit.com<\/p>\n<hr \/>\n<p>SUBSCRIBE TO OUR NEWSLETTERS, RECEIVE IN YOUR MAIL THE MOST OUTSTANDING NEWS, ONLY BY ENTERING YOUR EMAIL<\/p>\n<p style=\"text-align: left;\">[wysija_form id=”1″]<\/p>\n<hr \/>\n<p style=\"text-align: left;\"><div class=\"page-sidebar widget\" id=\"donation_buttons\"><form action=\"https:\/\/www.paypal.com\/cgi-bin\/webscr\" method=\"post\" target=\"_blank\" ><input type=\"hidden\" name=\"business\" value=\"donacion@rogerbit.com\"><input type=\"hidden\" name=\"bn\" value=\"mbjtechnolabs_SP\"><input type=\"hidden\" name=\"cmd\" value=\"_donations\"><input type=\"hidden\" name=\"item_name\" value=\"Ayuda a RogerBit.com\"><input type=\"hidden\" name=\"item_number\" value=\"www.rogerbit.com\"><input type=\"hidden\" class=\"set_donation_button_amount\" name=\"amount\" value=\"1\"><table ><tbody><tr><td><label for=\"rogerBit necesita de tu ayuda para seguir existiendo :-)\">rogerBit necesita de tu ayuda para seguir existiendo :-)<\/label><\/td><\/tr><\/tbody><\/table><table ><tbody><tr><td><input style=\"margin-top:10px;\" type=\"image\" name=\"submit\" border=\"0\" src=\"https:\/\/www.paypal.com\/en_US\/i\/btn\/btn_donateCC_LG.gif\" alt=\"PayPal - The safer, easier way to pay online\"><\/td><\/tr><\/tbody><\/table><input type=\"hidden\" name=\"currency_code\" value=\"USD\"><input type=\"hidden\" name=\"notify_url\" value=\"https:\/\/rogerbit.com\/wprb\/?Donation_Button&action=ipn_handler\"><\/form><\/div><\/p>\n<hr \/>\n<p style=\"text-align: left;\">RECOMMENDED PROJECT<\/p>\n<p><iframe loading=\"lazy\" width=\"1160\" height=\"653\" src=\"https:\/\/www.youtube.com\/embed\/HjvY-U1Nrkw?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p> <\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this tutorial we will see how to create an automatic alcohol dispenser with water, to disinfect hands.\u00a0It is activated by bringing your hand closer to the reflective infrared sensor tcrt5000l, whose signal is amplified by a ua741cp operational amplifier.\u00a0The output of this integrated is connected to the base of the tip42c pnp transistor, which […]<\/p>\n","protected":false},"author":1,"featured_media":5619,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[648],"tags":[972,971,966,540,976,975,957,974,973],"_links":{"self":[{"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/posts\/6014"}],"collection":[{"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/comments?post=6014"}],"version-history":[{"count":2,"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/posts\/6014\/revisions"}],"predecessor-version":[{"id":6016,"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/posts\/6014\/revisions\/6016"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/media\/5619"}],"wp:attachment":[{"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/media?parent=6014"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/categories?post=6014"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rogerbit.com\/wprb\/wp-json\/wp\/v2\/tags?post=6014"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}