{"id":3556,"date":"2025-04-04T11:40:08","date_gmt":"2025-04-04T11:40:08","guid":{"rendered":"https:\/\/iotthinghub.com\/?p=3556"},"modified":"2025-04-07T14:24:49","modified_gmt":"2025-04-07T14:24:49","slug":"tft-display-today-exchange-rate-in-bdt","status":"publish","type":"post","link":"https:\/\/iotthinghub.com\/?p=3556","title":{"rendered":"TFT Display Today Exchange Rate in BDT"},"content":{"rendered":"\n<p class=\"has-text-color has-link-color wp-elements-eb8ee8ea5904ca6cc7decffc849a1a7f wp-block-paragraph\" style=\"color:#5c5c5c\">In our previous article we discuss about ESP8266 as station mode to connect with internet. In this article we display real time Exchange Rate in BDT (Bangladeshi Taka). For connecting with internet please see my previous article. In this section we show the data using 1.8 &#8221; TFT Full Color LCD Module (ST7735 Driver). Before starting please go through my <a href=\"https:\/\/iotthinghub.com\/?p=2062\">Graphical LCD article<\/a> in SPI section. Let\u2019s see the pinout-<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"282\" src=\"https:\/\/iotthinghub.com\/wp-content\/uploads\/2025\/04\/TFT-1.8-Pinout-1024x282.jpg\" alt=\"\" class=\"wp-image-3559\" srcset=\"https:\/\/iotthinghub.com\/wp-content\/uploads\/2025\/04\/TFT-1.8-Pinout-1024x282.jpg 1024w, https:\/\/iotthinghub.com\/wp-content\/uploads\/2025\/04\/TFT-1.8-Pinout-300x83.jpg 300w, https:\/\/iotthinghub.com\/wp-content\/uploads\/2025\/04\/TFT-1.8-Pinout-768x212.jpg 768w, https:\/\/iotthinghub.com\/wp-content\/uploads\/2025\/04\/TFT-1.8-Pinout.jpg 1426w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"has-text-color has-link-color wp-elements-96112458c683d3f583805696a845f729 wp-block-paragraph\" style=\"color:#5c5c5c\">Here the TFT LCD can works with 3.3V in SPI configuration. We need 3 more GPIO pin for CS (Chip Select), Reset &amp; Data or Command mode. Since there is no need for read from the LCD we configure SPI as Half Duplex Master mode. So MISO pin can be used as a GPIO pin. ESP8266 setup will be same as previous article. For Real Time Exchange Rate reading we read data from \u2013<\/p>\n\n\n\n<ul style=\"color:#252525\" class=\"wp-block-list has-text-color has-link-color wp-elements-2fbf301271387ab0024e4113586cb852\">\n<li><a href=\"https:\/\/www.nrbbankbd.com\/\">https:\/\/www.nrbbankbd.com\/<\/a> &#8211; Website<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"621\" height=\"504\" src=\"https:\/\/iotthinghub.com\/wp-content\/uploads\/2025\/04\/Function-9.jpg\" alt=\"\" class=\"wp-image-3562\" srcset=\"https:\/\/iotthinghub.com\/wp-content\/uploads\/2025\/04\/Function-9.jpg 621w, https:\/\/iotthinghub.com\/wp-content\/uploads\/2025\/04\/Function-9-300x243.jpg 300w\" sizes=\"(max-width: 621px) 100vw, 621px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"has-text-color has-link-color wp-elements-9c9a405576dc3a753bdac8bcf288517f wp-block-paragraph\" style=\"color:#5c5c5c\">Here we use ThingHTTP service from thingspeak cloud. Create a new ThingHTTP service &amp; copy the XPath from nrbbankbd&nbsp; Bank for that particular section. Please see my Youtube tutorial for full details. Here we use Timer Interrupt function for reading the-<\/p>\n\n\n\n<ul style=\"color:#252525\" class=\"wp-block-list has-text-color has-link-color wp-elements-08d6cc0a31732a93a8609ec4ab360593\">\n<li>Time every 60 seconds<\/li>\n\n\n\n<li>Exchange rate every 60 minutes<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-link-color wp-elements-abc224f8cf0d2927dbc3af8c0af931b0 wp-block-paragraph\" style=\"color:#5c5c5c\">Connecting with ThingSpeak cloud is same as connecting with time zone as we discuss in previous article. For example-<\/p>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"has-text-color has-link-color wp-elements-41af1321da0b277bb384ffce93fb72b5 wp-block-paragraph\" style=\"color:#5c5c5c\">Filter your desire section, Here in display we show all the data in the TFT display. Below is the connection diagram-<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"953\" height=\"527\" src=\"https:\/\/iotthinghub.com\/wp-content\/uploads\/2025\/04\/TFT-with-ESP8266.jpg\" alt=\"\" class=\"wp-image-3567\" srcset=\"https:\/\/iotthinghub.com\/wp-content\/uploads\/2025\/04\/TFT-with-ESP8266.jpg 953w, https:\/\/iotthinghub.com\/wp-content\/uploads\/2025\/04\/TFT-with-ESP8266-300x166.jpg 300w, https:\/\/iotthinghub.com\/wp-content\/uploads\/2025\/04\/TFT-with-ESP8266-768x425.jpg 768w\" sizes=\"(max-width: 953px) 100vw, 953px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"STM32 : \ud83d\udedcToday Exchange Rate in BDT \ud83d\udcf6\ud83c\udf10ESP8266 \ud83d\udcf1 TFT Display\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/FHGbA5mbdw4?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>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>In our previous article we discuss about ESP8266 as station mode to connect with internet. In this article we display real time Exchange Rate in BDT (Bangladeshi Taka). For connecting with internet please see my previous article. In this section we show the data using 1.8 &#8221; TFT Full Color LCD Module (ST7735 Driver). Before [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"class_list":["post-3556","post","type-post","status-publish","format-standard","hentry","category-wireless-iot"],"_links":{"self":[{"href":"https:\/\/iotthinghub.com\/index.php?rest_route=\/wp\/v2\/posts\/3556","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/iotthinghub.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/iotthinghub.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/iotthinghub.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/iotthinghub.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3556"}],"version-history":[{"count":12,"href":"https:\/\/iotthinghub.com\/index.php?rest_route=\/wp\/v2\/posts\/3556\/revisions"}],"predecessor-version":[{"id":3583,"href":"https:\/\/iotthinghub.com\/index.php?rest_route=\/wp\/v2\/posts\/3556\/revisions\/3583"}],"wp:attachment":[{"href":"https:\/\/iotthinghub.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3556"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/iotthinghub.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3556"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/iotthinghub.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3556"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}