{"id":4552,"date":"2013-01-01T00:47:50","date_gmt":"2013-01-01T00:47:50","guid":{"rendered":"http:\/\/zerokidz.com\/ideas\/?p=4552"},"modified":"2014-05-27T19:38:21","modified_gmt":"2014-05-27T23:38:21","slug":"rc-car-using-arduino-with-xbee-radios","status":"publish","type":"post","link":"https:\/\/reactivemusic.net\/?p=4552","title":{"rendered":"RC car using Arduino with xbee radios"},"content":{"rendered":"<p class=\"lead\"><span style=\"line-height: 1.6;\">Bi-directional wireless control of motors<\/span><\/p>\n<p><cite>tested 5\/2014<\/cite><\/p>\n<p>The potentiometer on the control radio changes the motor speed of the RC car. A potentiometer on the other side controls the brightness of an LED at the controller.<\/p>\n<p><iframe loading=\"lazy\" title=\"Arduino xBee RC car mod\" width=\"525\" height=\"295\" src=\"https:\/\/www.youtube.com\/embed\/CIdELmunQIE?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<h4>making things talk<\/h4>\n<p>The xbee code was adapted from Tom Igoe&#8217;s full-duplex Wireless example, chapter 6 &#8211; &#8220;Making Things Talk&#8221; (using an improved version from his blog:\u00a0<a href=\"http:\/\/www.makingthingstalk.com\/chapter6\/30\/#more-30\">http:\/\/www.makingthingstalk.com\/chapter6\/30\/#more-30<\/a><\/p>\n<p>The xbee radios should be set up as directed &#8211; starting on p. 195<\/p>\n<p>Here are the xbee settings:<\/p>\n<table>\n<colgroup>\n<col \/>\n<col \/>\n<col \/>\n<col \/>\n<col \/><\/colgroup>\n<thead>\n<tr>\n<td><\/td>\n<td>ATMY<\/td>\n<td>ATDL<\/td>\n<td>ATDH<\/td>\n<td>ATID<\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Radio 1<\/strong><\/td>\n<td>1234<\/td>\n<td>5678<\/td>\n<td>0<\/td>\n<td>1111<\/td>\n<\/tr>\n<tr>\n<td><strong>Radio 2<\/strong><\/td>\n<td>5678<\/td>\n<td>1234<\/td>\n<td>0<\/td>\n<td>1111<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>construction<\/h4>\n<p>2 stacks:<\/p>\n<p>1) arduino +\u00a0wireless SD shield + xbee<\/p>\n<p><a href=\"https:\/\/reactivemusic.net\/wp-content\/uploads\/2013\/01\/IMG_0182.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-4632\" title=\"IMG_0182\" src=\"https:\/\/reactivemusic.net\/wp-content\/uploads\/2013\/01\/IMG_0182-300x224.jpg\" alt=\"\" width=\"300\" height=\"224\" srcset=\"https:\/\/reactivemusic.net\/wp-content\/uploads\/2013\/01\/IMG_0182-300x224.jpg 300w, https:\/\/reactivemusic.net\/wp-content\/uploads\/2013\/01\/IMG_0182-1024x764.jpg 1024w, https:\/\/reactivemusic.net\/wp-content\/uploads\/2013\/01\/IMG_0182-401x300.jpg 401w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>2) arduino + motor shield + wireless SD shield + xbee \u00a0(motor shield hooked to RC car motor)<\/p>\n<p><a href=\"https:\/\/reactivemusic.net\/wp-content\/uploads\/2013\/01\/IMG_0181.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-4633\" title=\"IMG_0181\" src=\"https:\/\/reactivemusic.net\/wp-content\/uploads\/2013\/01\/IMG_0181-300x224.jpg\" alt=\"\" width=\"300\" height=\"224\" srcset=\"https:\/\/reactivemusic.net\/wp-content\/uploads\/2013\/01\/IMG_0181-300x224.jpg 300w, https:\/\/reactivemusic.net\/wp-content\/uploads\/2013\/01\/IMG_0181-1024x764.jpg 1024w, https:\/\/reactivemusic.net\/wp-content\/uploads\/2013\/01\/IMG_0181-401x300.jpg 401w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>Each stack has a potentiometer, tx\/rx leds, LED for remote brightness control, and batteries.<\/p>\n<p>The motor shield has connections to the RC car motor and 9V battery for power.<\/p>\n<p><a href=\"https:\/\/reactivemusic.net\/wp-content\/uploads\/2013\/01\/IMG_0183.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-4634\" title=\"IMG_0183\" src=\"https:\/\/reactivemusic.net\/wp-content\/uploads\/2013\/01\/IMG_0183-300x224.jpg\" alt=\"\" width=\"300\" height=\"224\" srcset=\"https:\/\/reactivemusic.net\/wp-content\/uploads\/2013\/01\/IMG_0183-300x224.jpg 300w, https:\/\/reactivemusic.net\/wp-content\/uploads\/2013\/01\/IMG_0183-1024x764.jpg 1024w, https:\/\/reactivemusic.net\/wp-content\/uploads\/2013\/01\/IMG_0183-401x300.jpg 401w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<h4>code<\/h4>\n<p>Code for radio 1: xbee_full_duplex2_radio1.ino<\/p>\n<p>The motor side uses a few lines of code from an instructables.com motor shield tutorial. LED brightness is linked to motor speed &#8211; sent out on pin 3 &#8211; from the Arduino sketch:<\/p>\n<p><a href=\"http:\/\/www.instructables.com\/id\/Arduino-Motor-Shield-Tutorial\/?ALLSTEPS\">http:\/\/www.instructables.com\/id\/Arduino-Motor-Shield-Tutorial\/?ALLSTEPS<\/a><\/p>\n<p>code for radio 2 (car): xbee_full_duplex2_radio2_motor.ino<\/p>\n<h5>note:<\/h5>\n<p>When loading the sketch, set the slide switch on the Wireless-SD shield to &#8216;USB&#8217; &#8211; then switch it back to &#8220;micro&#8221; to run.<\/p>\n<p>If the controller radio (radio 1) is connected to a computer, open the Arduino serial monitor &#8211; or the sketch will block &#8211; and nothing will happen.<\/p>\n<h5>Download<\/h5>\n<p>[wpdm_file id=20]<\/p>\n<h4>circuit layout<\/h4>\n<h5>radio 1<\/h5>\n<ul>\n<li>pin A0 : input sensor (potentiometer)<\/li>\n<li>pin 2 : tx LED<\/li>\n<li>pin 3 : rx LED<\/li>\n<li>pin 9: test LED (receives brightness data)<\/li>\n<\/ul>\n<h5>radio 2<\/h5>\n<div><\/div>\n<div>\n<ul>\n<li>pin A0 : input sensor (potentiometer)<\/li>\n<li>pin 3: used internally for motor speed &#8211; (the motor is hooked to Channel A on the motor shield)<\/li>\n<li>pin 4 : tx LED<\/li>\n<li>pin 5 : rx LED<\/li>\n<li>pin 10: test LED (receives brightness data)<\/li>\n<\/ul>\n<\/div>\n<p>Re-assign some of the pins from the xbee example so they aren&#8217;t on the same ones as the motor shield is using: \u00a0Here&#8217;s the pin layout that the motor shield uses. i.e.. these are the pins that are used in an Arduino sketch to control each motor function. This project only controls &#8216;speed&#8217; on channel A (pin 3).<\/p>\n<table width=\"400\" border=\"0\">\n<tbody>\n<tr>\n<td><strong>Function<\/strong><\/td>\n<td><span style=\"text-decoration: underline;\"><strong>Channel A<\/strong><\/span><\/td>\n<td><span style=\"text-decoration: underline;\"><strong>Channel B<\/strong><\/span><\/td>\n<\/tr>\n<tr>\n<td><em>Direction<\/em><\/td>\n<td>Digital 12<\/td>\n<td>Digital 13<\/td>\n<\/tr>\n<tr>\n<td><em>Speed (PWM)<\/em><\/td>\n<td>Digital 3<\/td>\n<td>Digital 11<\/td>\n<\/tr>\n<tr>\n<td><em>Brake<\/em><\/td>\n<td>Digital 9<\/td>\n<td>Digital 8<\/td>\n<\/tr>\n<tr>\n<td><em>Current Sensing<\/em><\/td>\n<td>Analog 0<\/td>\n<td>Analog 1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h4>notes<\/h4>\n<p>This Arduino forum post was also helpful &#8211; otherwise I would have assumed that the shields were incompatible:<\/p>\n<p><a href=\"http:\/\/arduino.cc\/forum\/index.php\/topic,120517.msg906884.html#msg906884\">Stacking Arduino Wifi Shield and Arduino Motor Shield<\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bi-directional wireless control of motors tested 5\/2014 The potentiometer on the control radio changes the motor speed of the RC car. A potentiometer on the other side controls the brightness of an LED at the controller. making things talk The xbee code was adapted from Tom Igoe&#8217;s full-duplex Wireless example, chapter 6 &#8211; &#8220;Making Things &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/reactivemusic.net\/?p=4552\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;RC car using Arduino with xbee radios&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","footnotes":""},"categories":[143],"tags":[20,46,55,90,6,190,25,57],"class_list":["post-4552","post","type-post","status-publish","format-standard","hentry","category-interactive-media-art","tag-arduino","tag-connections","tag-electronics","tag-how-to","tag-interactive-media","tag-portfolio","tag-programming","tag-radio"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>RC car using Arduino with xbee radios - reactive music<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/reactivemusic.net\/?p=4552\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"RC car using Arduino with xbee radios - reactive music\" \/>\n<meta property=\"og:description\" content=\"Bi-directional wireless control of motors tested 5\/2014 The potentiometer on the control radio changes the motor speed of the RC car. 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