{"id":249,"date":"2025-09-30T23:10:24","date_gmt":"2025-09-30T21:10:24","guid":{"rendered":"https:\/\/www.genexio.net\/blog\/?p=249"},"modified":"2025-09-30T23:18:34","modified_gmt":"2025-09-30T21:18:34","slug":"development-of-an-attendance-system-with-raspberry-pi-and-filemaker-integration","status":"publish","type":"post","link":"https:\/\/www.genexio.net\/blog\/2025\/09\/30\/development-of-an-attendance-system-with-raspberry-pi-and-filemaker-integration\/","title":{"rendered":"Development of an Attendance System with Raspberry Pi and FileMaker Integration"},"content":{"rendered":"\n<p>In the last few months we have developed a new <strong>electronic attendance system<\/strong> based on <strong>Raspberry Pi<\/strong>. The goal was to design a compact, reliable, and fully integrated solution with our FileMaker management system.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Hardware and Mechanical Design<\/h4>\n\n\n\n<p>The system is built around a <strong>Raspberry Pi with the official display<\/strong>, mounted inside a custom enclosure. Key features include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A dedicated <strong>CPU fan<\/strong> to ensure stability during long operating hours,<\/li>\n\n\n\n<li>Two <strong>lateral cooling fans<\/strong> inside the box to improve airflow,<\/li>\n\n\n\n<li>A <strong>custom CNC-milled case<\/strong> that integrates the board and display in one compact body.<\/li>\n<\/ul>\n\n\n\n<p>All <strong>mechanical parts<\/strong> (box, brackets, ventilation slots, and display front panel) were manufactured by our <strong>CNC milling department<\/strong>, ensuring precision and robustness.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">RFID Reading<\/h4>\n\n\n\n<p>The system uses a <strong>USB RFID antenna<\/strong>, directly connected to the Raspberry Pi. Compared to our first Arduino-based prototypes, this solution is simpler and more reliable:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Reading the card code via USB,<\/li>\n\n\n\n<li>Normalizing the code into <strong>hexadecimal format<\/strong>,<\/li>\n\n\n\n<li>Immediate transfer of the data to the FileMaker server.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Software and FileMaker Integration<\/h4>\n\n\n\n<p>On the software side, we implemented a <strong>Python script<\/strong> that:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Reads raw data from the RFID reader,<\/li>\n\n\n\n<li>Normalizes it into a clean hexadecimal string,<\/li>\n\n\n\n<li>Sends the punch data to FileMaker via <strong>OData<\/strong>,<\/li>\n\n\n\n<li>Saves the last punch locally for on-screen visualization.<\/li>\n<\/ol>\n\n\n\n<p><strong>Example Python code:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\nimport requests, time\n\nSERVER = \"https:\/\/192.168.1.27\"\nDB = \"timbrature\"\nENTITY = \"timbrature\"\nUSER, PWD = \"odata\", \"odata\"\n\ndef post_odata(uid_hex):\n    payload = {\n        \"badge\": uid_hex,\n        \"timestamp\": time.strftime(\"%Y-%m-%dT%H:%M:%S\"),\n        \"origine\": \"pi_usb\"\n    }\n    r = requests.post(\n        f\"{SERVER}\/fmi\/odata\/{DB}\/{ENTITY}\",\n        json=payload, auth=(USER, PWD),\n        verify=False, timeout=5\n    )\n    r.raise_for_status()\n\nwhile True:\n    uid = \"0400A1B2C3\"  # simulated badge read\n    post_odata(uid)\n    print(\"Punch sent:\", uid)\n    time.sleep(5)\n<\/code><\/pre>\n\n\n\n<p>On the FileMaker side, a server-side script automatically assigns the punch type (<em>check-in\/check-out<\/em>) in alternating order.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">User Interface and Dashboard with Node-RED<\/h4>\n\n\n\n<p>The <strong>web dashboard<\/strong> was developed in Node-RED, accessible directly from the Raspberry Pi browser. Main features include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A <strong>real-time table of people present<\/strong> (only last check-in per badge),<\/li>\n\n\n\n<li>A <strong>total counter<\/strong> of employees currently inside,<\/li>\n\n\n\n<li>A <strong>notification banner<\/strong> displayed on every swipe,<\/li>\n\n\n\n<li>A <strong>company message box<\/strong> synchronized with a FileMaker field.<\/li>\n<\/ul>\n\n\n\n<p><strong>Example Function Node (Node-RED):<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\n\/\/ INPUT: punch list from FileMaker\nconst rows = msg.payload.value || &#91;];\nconst latest = new Map();\n\nfor (const r of rows) {\n    const b = r.badge;\n    const t = new Date(r.timestamp);\n    if (!latest.has(b) || t &gt; latest.get(b)._t) {\n        latest.set(b, { badge: b, tipo: r.tipo_timbratura, _t: t });\n    }\n}\n\n\/\/ FILTER: only check-ins\nmsg.payload = &#91;...latest.values()].filter(x =&gt; x.tipo === \"ingresso\");\nreturn msg;\n<\/code><\/pre>\n\n\n\n<p><strong>Example Notification Banner (Node-RED):<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\n{\n  \"type\": \"ui_toast\",\n  \"position\": \"top right\",\n  \"displayTime\": \"3\",\n  \"topic\": \"New punch\",\n  \"payload\": \"Badge 0400A1B2C3 - 2025-09-30 21:15\"\n}\n<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">Final Result<\/h4>\n\n\n\n<p>The final attendance system is:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Reliable<\/strong> \u2013 with active cooling and CNC custom box,<\/li>\n\n\n\n<li><strong>Integrated<\/strong> \u2013 thanks to Python + OData with FileMaker,<\/li>\n\n\n\n<li><strong>User-friendly<\/strong> \u2013 with dashboard, presence table, and notifications,<\/li>\n\n\n\n<li><strong>Customizable<\/strong> \u2013 company messages managed directly from FileMaker.<\/li>\n<\/ul>\n\n\n\n<p>Below, we will include some <strong>photos<\/strong> showing the assembly, the CNC-milled box, and the user interface.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"480\" data-id=\"251\" src=\"https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_1281.jpeg\" alt=\"IMG 1281\" class=\"wp-image-251\" title=\"Development of an Attendance System with Raspberry Pi and FileMaker Integration\" srcset=\"https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_1281.jpeg 640w, https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_1281-300x225.jpeg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"480\" data-id=\"252\" src=\"https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_1280.jpeg\" alt=\"IMG 1280\" class=\"wp-image-252\" title=\"Development of an Attendance System with Raspberry Pi and FileMaker Integration\" srcset=\"https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_1280.jpeg 640w, https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_1280-300x225.jpeg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"480\" data-id=\"258\" src=\"https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_4971.jpeg\" alt=\"IMG 4971\" class=\"wp-image-258\" title=\"Development of an Attendance System with Raspberry Pi and FileMaker Integration\" srcset=\"https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_4971.jpeg 640w, https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_4971-300x225.jpeg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"480\" data-id=\"255\" src=\"https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_4970.jpeg\" alt=\"IMG 4970\" class=\"wp-image-255\" title=\"Development of an Attendance System with Raspberry Pi and FileMaker Integration\" srcset=\"https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_4970.jpeg 640w, https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_4970-300x225.jpeg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"480\" height=\"640\" data-id=\"257\" src=\"https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_4949.jpeg\" alt=\"IMG 4949\" class=\"wp-image-257\" title=\"Development of an Attendance System with Raspberry Pi and FileMaker Integration\" srcset=\"https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_4949.jpeg 480w, https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_4949-225x300.jpeg 225w\" sizes=\"auto, (max-width: 480px) 100vw, 480px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"480\" height=\"640\" data-id=\"254\" src=\"https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_4948.jpeg\" alt=\"IMG 4948\" class=\"wp-image-254\" title=\"Development of an Attendance System with Raspberry Pi and FileMaker Integration\" srcset=\"https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_4948.jpeg 480w, https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_4948-225x300.jpeg 225w\" sizes=\"auto, (max-width: 480px) 100vw, 480px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"480\" height=\"640\" data-id=\"253\" src=\"https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_4947.jpeg\" alt=\"IMG 4947\" class=\"wp-image-253\" title=\"Development of an Attendance System with Raspberry Pi and FileMaker Integration\" srcset=\"https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_4947.jpeg 480w, https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_4947-225x300.jpeg 225w\" sizes=\"auto, (max-width: 480px) 100vw, 480px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"480\" height=\"640\" data-id=\"256\" src=\"https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_4946-1.jpeg\" alt=\"IMG 4946 1\" class=\"wp-image-256\" title=\"Development of an Attendance System with Raspberry Pi and FileMaker Integration\" srcset=\"https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_4946-1.jpeg 480w, https:\/\/www.genexio.net\/blog\/wp-content\/uploads\/2025\/09\/IMG_4946-1-225x300.jpeg 225w\" sizes=\"auto, (max-width: 480px) 100vw, 480px\" \/><\/figure>\n<\/figure>\n","protected":false},"excerpt":{"rendered":"<p>In the last few months we have developed a new electronic attendance system based on Raspberry Pi. The goal was to design a compact, reliable, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15,16,11],"tags":[],"class_list":["post-249","post","type-post","status-publish","format-standard","hentry","category-node-red","category-python","category-raspberry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Development of an Attendance System with Raspberry Pi and FileMaker Integration - My blog<\/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:\/\/www.genexio.net\/blog\/2025\/09\/30\/development-of-an-attendance-system-with-raspberry-pi-and-filemaker-integration\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Development of an Attendance System with Raspberry Pi and FileMaker Integration - My blog\" \/>\n<meta property=\"og:description\" content=\"In the last few months we have developed a new electronic attendance system based on Raspberry Pi. 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