Best & Fast Prototype ($2 for 10 PCBs): https://www.jlcpcb.com Thanks to JLCPCB for supporting this video. Fast and easy. Just an example on how you could send data wireless using IR light. In this case we send 8 bits for each button. The phototransisotrs will allow current to pass or not when it receives IR light. You have all the schematics and codes here. Enjoy! Help my projects on Patreon: https://www.patreon.com/ELECTRONOOBS my Q&A page: http://electronoobs.com/eng_preguntas.php Canal en Español: https://www.youtube.com/channel/UCL_QvUUeriC6q610RCXDlSQ -------------------------------------------------------------------- LINKS ________________________________________________________ Tutorial website: http://www.electronoobs.com/eng_arduino_tut35.php Schematic TX: http://www.electronoobs.com/eng_arduino_tut35_sch1.php Code TX: http://www.electronoobs.com/eng_arduino_tut35_code1.php Scheamtic RX: http://www.electronoobs.com/eng_arduino_tut35 _sch2.php Code RX: http://www.electronoobs.com/eng_arduino_tut35_code2.php LIBRARIES IRremote library: http://www.electronoobs.com/eng_arduino_IRremote.php Codes: EXTRA VS1838 Arduino schematic: http://www.electronoobs.com/images/Arduino/tut_34/receiver_2.png VS1839 example code: http://www.electronoobs.com/eng_arduino_tut34_code1.php COUPONS for you ________________________________________________________ Ultimate mobile sale: https://www.gearbest.com/promotion-eu-mobile-phones-sales-special-1126.html?04&lkid=13542191 3D RepRap festival: https://www.gearbest.com/promotion-reprap3dfestival-special-2214.html?0&lkid=13542196 Programmable soldering iron: https://www.gearbest.com/boards-shields/pp_266258.html?lkid=13542238 Coupon: "GBMAR069" DIGITAL MULTIMETER (9.9$): https://www.gearbest.com/multimeters-fitting/pp_650318.html Coupon: "ZT102SALE" PRINTERS ------------------------------------- Ender 3(167€): https://www.gearbest.com/3d-printers-3d-printer-kits/pp_1845899.html?wid=1433363&lkid=15361952 SparkMaker SLA: https://www.gearbest.com/3d-printers-3d-printer-kits/pp_009472956105.html?wid=1433363&lkid=14610954 Crealitu CR10: https://www.gearbest.com/3d-printers-3d-printer-kits/pp_441282.html?lkid=11382974 Coupon code: "11CR10EU" or "11CR10US" ANET E10 (219$): https://www.gearbest.com/3d-printers-3d-printer-kits/pp_664899.html?wid=44&lkid=13867473 Coupon code: "Anete10us" TEVO Tarantula (175$): https://www.gearbest.com/3d-printers-3d-printer-kits/pp_628789.html?wid=44&lkid=13867477 Coupon code: "Tarantulaus" Creality CR10 MINI: https://www.gearbest.com/3d-printers-3d-printer-kits/pp_778274.html?lkid=11814180 COUPON: CR10MINI Anet A8: https://www.gearbest.com/3d-printers-3d-printer-kits/pp_337314.html?lkid=13060560 Coupon code: "A8KIDA" Like share and subscribe to motivate me. Thank you