Module for DHT22<\/a><\/p>\nIn the Open event of my window I placed this code:<\/p>\n
Sub Open()\n GPIO.SetupGPIO\nEnd Sub\n<\/pre>\nI put this code on button:<\/p>\n
Sub Action()\n Dim result as Integer\n Dim humidity as Single\n Dim temperature as Single\n \n result = DHT22.ReadSensor(6,humidity,temperature)\n \n if result = 0 then\n MsgBox \"Humidity = \" + Format(humidity,\"#.0\") + \" % -- Temperature: \" + Format(temperature,\"#.0\") + \" \u2103\"\n elseif result = -1 then\n MsgBox \"Timeout error\"\n elseif result = -2 then\n MsgBox \"Checksum error\"\n end if\nEnd Sub\n<\/pre>\nFor DHT11, just change the DHT22 to DHT11 in the code above and use the DHT11 module in your project.<\/p>\n
Note that this sensor will have timeouts and checksum errors at times. Then you just call for new reading on it.<\/p>\n","protected":false},"excerpt":{"rendered":"
In this example we are going to connect\u00a0to DHT11 and or DHT22 humidity & temperature sensor. This sensor reads both the humidity and temperature. (This guide was updated on 24. Oct 2015, greatly improving the DHT11 device driver code and added DHT22 device driver code and wiring pictures for the DHT22) The\u00a0DHT22 has higher resolution … Continue reading DHT11 and DHT22 humidity & temperature sensors (3 pin version)<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":94,"menu_order":60,"comment_status":"open","ping_status":"closed","template":"","meta":{"spay_email":""},"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/Pd75nk-24","jetpack-related-posts":[{"id":108,"url":"https:\/\/einhugur.net\/blog\/index.php\/xojo-gpio\/f85-vibration-sensor\/","url_meta":{"origin":128,"position":0},"title":"F85 Vibration sensor","date":"September 19, 2015","format":false,"excerpt":"In this example we are going to connect to\u00a0vibration sensor. This example is super easy after doing the infrared motion detection with the HC-SR501 in a previous example, since basically same code will work. I found this sensor to be excellent, it gives readings when I expect it to and\u2026","rel":"","context":"Similar post","img":{"alt_text":"","src":"https:\/\/i1.wp.com\/einhugur.com\/blog\/wp-content\/uploads\/2015\/09\/Sensor-connection-e1442664059628-225x300.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":137,"url":"https:\/\/einhugur.net\/blog\/index.php\/xojo-gpio\/ir-infrared-obstacle-reflection-photoelectric-sensor\/","url_meta":{"origin":128,"position":1},"title":"IR Infrared Obstacle Reflection Photoelectric Sensor","date":"September 20, 2015","format":false,"excerpt":"In this example we are going to connect to infrared obstacle reflection photoelectric sensor motion detection sensor. I am not going to deny it, I find this sensor to be awful rubbish. Without reading the data you can hook it up and see it when the 2nd green lights goes\u2026","rel":"","context":"Similar post","img":{"alt_text":"","src":"https:\/\/i0.wp.com\/einhugur.com\/blog\/wp-content\/uploads\/2015\/09\/IRSensor-e1442754741492-225x300.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":113,"url":"https:\/\/einhugur.net\/blog\/index.php\/xojo-gpio\/flame-sensor\/","url_meta":{"origin":128,"position":2},"title":"Flame sensor","date":"September 19, 2015","format":false,"excerpt":"In this example we are going to connect to flame\u00a0sensor. Programming for this sensor works on exactly the same principle as the\u00a0HC-SR501 infrared sensor and the F85 vibration sensor except the signal from this sensor comes inverted. As in it will send 1 when everything is all right and zero\u2026","rel":"","context":"Similar post","img":{"alt_text":"","src":"https:\/\/i0.wp.com\/einhugur.com\/blog\/wp-content\/uploads\/2015\/09\/FlameSensor-e1442681877884-225x300.jpg?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":94,"url":"https:\/\/einhugur.net\/blog\/index.php\/xojo-gpio\/","url_meta":{"origin":128,"position":3},"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":165,"url":"https:\/\/einhugur.net\/blog\/index.php\/xojo-gpio\/hc-sr04-ultrasonic-sensor\/","url_meta":{"origin":128,"position":4},"title":"HC-SR04 and US-015 - Ultrasonic sensors","date":"September 22, 2015","format":false,"excerpt":"In this example we are going to connect to HC-SR04 and or US-015\u00a0ultrasonic sensor. (Updated 18. Oct 2015, adding US-015 sensor and sensor specs) (Updated 18. Apr 2016, adding more info for accuracy for the HC-SR04 sensor) A ultrasonic sensor will send ultrasonic sound out which will echo on objects\u2026","rel":"","context":"Similar post","img":{"alt_text":"Ultrasonic wiring","src":"https:\/\/i1.wp.com\/einhugur.com\/blog\/wp-content\/uploads\/2015\/09\/Screen-Shot-2015-09-22-at-00.01.38.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":128,"position":5},"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":[]}],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/einhugur.net\/blog\/index.php\/wp-json\/wp\/v2\/pages\/128"}],"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=128"}],"version-history":[{"count":11,"href":"https:\/\/einhugur.net\/blog\/index.php\/wp-json\/wp\/v2\/pages\/128\/revisions"}],"predecessor-version":[{"id":973,"href":"https:\/\/einhugur.net\/blog\/index.php\/wp-json\/wp\/v2\/pages\/128\/revisions\/973"}],"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=128"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"DHT11](\"https:\/\/i1.wp.com\/einhugur.com\/blog\/wp-content\/uploads\/2015\/09\/DHT11-Sensor-e1442717878879-225x300.jpg?resize=225%2C300&ssl=1\")
<\/a>![\"DHT22](\"https:\/\/i0.wp.com\/einhugur.com\/blog\/wp-content\/uploads\/2015\/09\/DHT22.png?resize=472%2C514&ssl=1\")
<\/a>![\"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