AliExpress.com Product - 1pcs\/lot 4 channel relay module 4-channel relay control board with optocoupler. Relay Output 4 way relay module for arduino<\/span><\/a>
\n<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"In this example we are going to wire up a relay board and let your Xojo code control it. A really board is normally used to control high voltage devices such as lights for example. In my case I will be using them \u00a0to remote control electric heaters in a summer house in the winters … Continue reading Relay board<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":94,"menu_order":1,"comment_status":"open","ping_status":"closed","template":"","meta":{"spay_email":""},"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/Pd75nk-1E","jetpack-related-posts":[{"id":94,"url":"https:\/\/einhugur.net\/blog\/index.php\/xojo-gpio\/","url_meta":{"origin":102,"position":0},"title":"Xojo GPIO","date":"September 19, 2015","format":false,"excerpt":"Guides for GPIO in Xojo \u00a0Infrared motion detection (Updated 1. May 2016) Shows\u00a02 ways of coding: Using Interrupts or simple polling. Sensors: \u00a0HC-SR501,\u00a0ST-00082 Mini,\u00a0Mini IR Pyroelectric Infrared PIR Motion Human Sensor Detector Module Uses:\u00a0Basic GPIO Relay board In this example we \u00a0wire up a relay board and let your Xojo\u2026","rel":"","context":"Similar post","img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":311,"url":"https:\/\/einhugur.net\/blog\/index.php\/xojo-gpio\/putting-the-gpio-pin-behind-transistor-to-get-more-current\/","url_meta":{"origin":102,"position":1},"title":"Putting the GPIO pin behind transistor to get more current","date":"October 23, 2015","format":false,"excerpt":"In this example we are going to let the GPIO pin control a transistor so that we can draw more power when controlling a LED than what the GPIO pin can supply. We will be using a simple LED in this example where we aim to draw 16 mA power\u2026","rel":"","context":"Similar post","img":{"alt_text":"TransistorExperimentbb","src":"https:\/\/i0.wp.com\/einhugur.com\/blog\/wp-content\/uploads\/2015\/10\/TransistorExperimentbb.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":224,"url":"https:\/\/einhugur.net\/blog\/index.php\/xojo-gpio\/working-with-leds-and-wiring-4-pin-rgb-led-to-raspberry-pi\/","url_meta":{"origin":102,"position":2},"title":"Working with LED's - And Wiring 4 pin RGB led to Raspberry PI","date":"October 12, 2015","format":false,"excerpt":"In this example we are going\u00a0learn some basics on how to calculate the resistor for LED, and we will take a look at how to wire up a 4 pin RGB LED. Disclaimer: We do not take any responsibility for possible errors in the guide or errors that you might\u2026","rel":"","context":"Similar post","img":{"alt_text":"RGBLedMutimeterTestNew","src":"https:\/\/i1.wp.com\/einhugur.com\/blog\/wp-content\/uploads\/2015\/10\/RGBLedMutimeterTestNew.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":421,"url":"https:\/\/einhugur.net\/blog\/index.php\/xojo-gpio\/optocouplers\/","url_meta":{"origin":102,"position":3},"title":"Optocouplers","date":"April 18, 2016","format":false,"excerpt":"In this example we are going to take a look at Optocouplers. Disclaimer: We do not take any responsibility for possible errors in the guide or errors that you might do wiring it up. Incorrect wiring can result in damaged sensor or damaged Raspberry PI. Prerequisites: We hight recommend that\u2026","rel":"","context":"Similar post","img":{"alt_text":"Optocoupler","src":"https:\/\/i0.wp.com\/einhugur.com\/blog\/wp-content\/uploads\/2016\/04\/Optocoupler.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":617,"url":"https:\/\/einhugur.net\/blog\/index.php\/xojo-gpio\/bmp180-barometer-sensor\/","url_meta":{"origin":102,"position":4},"title":"BMP180 Barometer sensor","date":"May 22, 2016","format":false,"excerpt":"In this example we are going to connect to BMP180 barometer sensor, we will be using brake-out board called GY-68. This sensor is really small even the full brake-outboard is only size of a fingernail. The board does not come with the header pins soldered on, but with mine the\u2026","rel":"","context":"Similar post","img":{"alt_text":"BMP180Soldered","src":"https:\/\/i1.wp.com\/einhugur.com\/blog\/wp-content\/uploads\/2016\/05\/BMP180Soldered.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":345,"url":"https:\/\/einhugur.net\/blog\/index.php\/xojo-gpio\/using-logic-gates\/","url_meta":{"origin":102,"position":5},"title":"Using logic gates","date":"November 8, 2015","format":false,"excerpt":"In this guide we are going to learn how to use logic gates. \u00a0Even if you can usually do things by just taking more GPIO pins and do the logic in a code then there will be times you may want to do things in hardware. For example you might\u2026","rel":"","context":"Similar post","img":{"alt_text":"LogicCircuits","src":"https:\/\/i2.wp.com\/einhugur.com\/blog\/wp-content\/uploads\/2015\/11\/LogicCircuits.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/einhugur.net\/blog\/index.php\/wp-json\/wp\/v2\/pages\/102"}],"collection":[{"href":"https:\/\/einhugur.net\/blog\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/einhugur.net\/blog\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/einhugur.net\/blog\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/einhugur.net\/blog\/index.php\/wp-json\/wp\/v2\/comments?post=102"}],"version-history":[{"count":7,"href":"https:\/\/einhugur.net\/blog\/index.php\/wp-json\/wp\/v2\/pages\/102\/revisions"}],"predecessor-version":[{"id":512,"href":"https:\/\/einhugur.net\/blog\/index.php\/wp-json\/wp\/v2\/pages\/102\/revisions\/512"}],"up":[{"embeddable":true,"href":"https:\/\/einhugur.net\/blog\/index.php\/wp-json\/wp\/v2\/pages\/94"}],"wp:attachment":[{"href":"https:\/\/einhugur.net\/blog\/index.php\/wp-json\/wp\/v2\/media?parent=102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"Relay](\"https:\/\/i0.wp.com\/einhugur.com\/blog\/wp-content\/uploads\/2015\/09\/RelayWiring-300x225.jpg?resize=300%2C225&ssl=1\")
<\/a><\/p>\n![\"HighVoltageRelayConnection\"](\"https:\/\/i0.wp.com\/einhugur.com\/blog\/wp-content\/uploads\/2015\/09\/HighVoltageRelayConnection-300x225.jpg?resize=300%2C225&ssl=1\")
<\/a><\/p>\n![\"Cobbler](\"https:\/\/i1.wp.com\/einhugur.com\/blog\/wp-content\/uploads\/2015\/09\/Sensor-connection-e1442664059628-225x300.jpg?resize=225%2C300&ssl=1\")
<\/a>![\"GPIO](\"https:\/\/i1.wp.com\/einhugur.com\/blog\/wp-content\/uploads\/2015\/09\/GPIO-Header-152x300.png?resize=152%2C300&ssl=1\")
<\/a><\/p>\n![](\"https:\/\/i1.wp.com\/g02.a.alicdn.com\/kf\/HTB1k5Q3JXXXXXcPXpXXq6xXFXXXr\/1pcs-lot-4-channel-font-b-relay-b-font-module-4-channel-font-b-relay-b.jpg_220x220.jpg?w=474\")
AliExpress.com Product - 1pcs\/lot 4 channel relay module 4-channel relay control board with optocoupler. Relay Output 4 way relay module for arduino<\/span><\/a>