{"id":73560,"date":"2022-11-21T13:51:06","date_gmt":"2022-11-21T05:51:06","guid":{"rendered":"https:\/\/www.seeedstudio.com\/blog\/?p=73560"},"modified":"2023-11-29T14:37:38","modified_gmt":"2023-11-29T06:37:38","slug":"private-communication-device-a-lora-navigation-system-based-on-seeed-wio-e5-and-fusion-pcba","status":"publish","type":"post","link":"https:\/\/www.seeedstudio.com\/blog\/2022\/11\/21\/private-communication-device-a-lora-navigation-system-based-on-seeed-wio-e5-and-fusion-pcba\/","title":{"rendered":"Private Communication Device &#8211; A LoRa\u00ae Navigation System based on Seeed Wio-e5 and Fusion PCBA"},"content":{"rendered":"\n<p>Have you ever slipped off your group while hiking, climbing, kayaking, or mountain biking in a remote place? Do you want to rejoin your people after splitting but don&#8217;t know their location? How about having a navigation system that allows you to share your location with the group and guide you toward your people? Or view the location of your group members on your device and stay connected?<\/p>\n\n\n\n<p>Everyone knows how interconnected people are with each other in the 21st century, as well as the pervasiveness of the internet. But still, there are few remote places where the internet or cellular signals are absent. Therefore, personal RF links are required to maintain the communication link with each other even at these places. Also, strictly-private communication between people is considered impossible without the help of a network server or a third-party device\/system, making Information security and communication privacy hard to achieve in the current days.<\/p>\n\n\n\n<p>Now, with the help of the Seeed Fusion PCBA service, <a href=\"https:\/\/hackaday.io\/siliconbug\" target=\"_blank\" rel=\"noreferrer noopener\">Addepalli Dolendra Vikas<\/a> has designed a LoRa\u00ae communicator prototype called &#8220;directMessage&#8221; to tackle these problems. Click <a href=\"https:\/\/hackaday.io\/page\/13667-directmessage\" target=\"_blank\" rel=\"noreferrer noopener\">here<\/a> to view the project page!<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1030\" height=\"641\" src=\"https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/11\/1042171667997469599-1030x641.jpg\" alt=\"\" class=\"wp-image-73561\" srcset=\"https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/11\/1042171667997469599-1030x641.jpg 1030w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/11\/1042171667997469599-300x187.jpg 300w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/11\/1042171667997469599-768x478.jpg 768w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/11\/1042171667997469599-1536x956.jpg 1536w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/11\/1042171667997469599-2048x1274.jpg 2048w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/11\/1042171667997469599-1024x637.jpg 1024w\" sizes=\"(max-width: 1030px) 100vw, 1030px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center has-small-font-size\"><em>The Appearance of directMessag<\/em>e<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What is &#8220;directMessage&#8221;?<\/h2>\n\n\n\n<p>DirecMessage is a communicator for exchanging peer location through a private channel by using LoRa\u00ae technology in a P2P (Peer-to-Peer) configuration. By integrating with the <a href=\"https:\/\/www.seeedstudio.com\/LoRa-E5-Wireless-Module-p-4745.html\" target=\"_blank\" rel=\"noreferrer noopener\">Wio-E5 wireless module<\/a> from Seeed Studio, It communicates with the other same device over a secure 865MHz (EU868\/US915\/AU915\/KR920\/IN865) channel. This will also help to establish the link between the devices without dependency on the other systems(like a gateway). The device is equipped with GPS to get the device&#8217;s location, and a magnetometer to direct the user to the desired location.<br>Similar to a two-way pager, the directMessage has various advanced features, such as live navigation and sharing of location, altitude, and attitude.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Hardware Components<\/h2>\n\n\n\n<p>Let&#8217;s take a look at the key components of the communicator to see how it actually works.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">LoRa\u00ae Connectivity<\/h3>\n\n\n\n<p>The directMessage is equipped with the Wio-E5 Wireless Module for Long Range Application as the MCU. It contains ST system-level package chip STM32WLE5JC, and this STM32WL module is the first SoC integrated with the combo of Long Range RF and MCU chip, providing high performance and low power consumption in a tiny package. LoRa\u00ae P2P feature can be used to establish LoRa\u00ae chatting. Sixteen buttons were used by multiplexing 4 GPIOs onto the other 4 GPIOs.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1030\" height=\"518\" src=\"https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/11\/6187151667997579051-1030x518.jpg\" alt=\"\" class=\"wp-image-73563\" srcset=\"https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/11\/6187151667997579051-1030x518.jpg 1030w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/11\/6187151667997579051-300x151.jpg 300w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/11\/6187151667997579051-768x386.jpg 768w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/11\/6187151667997579051-1536x772.jpg 1536w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/11\/6187151667997579051-2048x1030.jpg 2048w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/11\/6187151667997579051-1024x515.jpg 1024w\" sizes=\"(max-width: 1030px) 100vw, 1030px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center has-small-font-size\"><em>Wio-E5 Inside the Board<\/em><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Location Sharing<\/h3>\n\n\n\n<p>Location sharing is an essential part of communication to run smoothly. The POT GPS module (Quectel L80) is used to acquire the user&#8217;s location. It has significantly less power consumption (in the order of 20mA) during acquisition and tracking and a reacquisition time of less than 1sec, which makes directMessage acquire the user action very quickly.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Data Collection<\/h3>\n\n\n\n<p>Sensors are used in measuring certain parameters of the device carrier: altitude, orientation, and direction of the device. A pressure sensor (BME280) is used as an altimeter. The same sensor can be used to measure the Humidity.<br>A 9DOF IMU (MPU280) measures the device&#8217;s orientation, acceleration, and direction (concerning the earth&#8217;s north and south pole). Users can view the roll, pitch, and yaw of the \u2018directMessage\u2019 over the display, which is a 1.8&#8243; LCD (ST7735) that communicates with the Wio-E5 MCU over the SPI communication protocol.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1030\" height=\"500\" src=\"https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/11\/\u4f01\u4e1a\u5fae\u4fe1\u622a\u56fe_16690013643235-1030x500.png\" alt=\"\" class=\"wp-image-73564\" srcset=\"https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/11\/\u4f01\u4e1a\u5fae\u4fe1\u622a\u56fe_16690013643235-1030x500.png 1030w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/11\/\u4f01\u4e1a\u5fae\u4fe1\u622a\u56fe_16690013643235-300x146.png 300w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/11\/\u4f01\u4e1a\u5fae\u4fe1\u622a\u56fe_16690013643235-768x373.png 768w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/11\/\u4f01\u4e1a\u5fae\u4fe1\u622a\u56fe_16690013643235-1024x498.png 1024w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/11\/\u4f01\u4e1a\u5fae\u4fe1\u622a\u56fe_16690013643235.png 1453w\" sizes=\"(max-width: 1030px) 100vw, 1030px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center has-small-font-size\"><em>Components of the directMessage<\/em><\/p>\n\n\n\n<p>Please note that, this is currently the <strong>first<\/strong> version of the directMessage, and the<strong> upcoming updates will be successively provided in this article<\/strong>. Stay tuned!<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"773\" height=\"1030\" src=\"https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/12\/IMG-1566-773x1030.jpg\" alt=\"\" class=\"wp-image-73769\" srcset=\"https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/12\/IMG-1566-773x1030.jpg 773w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/12\/IMG-1566-225x300.jpg 225w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/12\/IMG-1566-768x1024.jpg 768w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/12\/IMG-1566-1152x1536.jpg 1152w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/12\/IMG-1566-1536x2048.jpg 1536w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/12\/IMG-1566-1024x1365.jpg 1024w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/12\/IMG-1566-scaled.jpg 1920w\" sizes=\"(max-width: 773px) 100vw, 773px\" \/><\/figure><\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"773\" height=\"1030\" src=\"https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/12\/IMG-1567-773x1030.jpg\" alt=\"\" class=\"wp-image-73771\" srcset=\"https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/12\/IMG-1567-773x1030.jpg 773w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/12\/IMG-1567-225x300.jpg 225w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/12\/IMG-1567-768x1024.jpg 768w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/12\/IMG-1567-1152x1536.jpg 1152w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/12\/IMG-1567-1536x2048.jpg 1536w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/12\/IMG-1567-1024x1365.jpg 1024w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/12\/IMG-1567-scaled.jpg 1920w\" sizes=\"(max-width: 773px) 100vw, 773px\" \/><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading\">Feedback from the Designer<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Could you please briefly introduce yourself?<\/h3>\n\n\n\n<p>I\u2019m an electronics hobbyist and a full-stack embedded developer with dexterous knowledge and experience in developing product-based embedded and IoT systems solutions.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Did you encounter any challenges when working on this project? How did Seeed Fusion help you solve them?<\/h3>\n\n\n\n<p>Yes, I faced some issues with the display. The display that I used was the ST7735 display. Incorporating it into the PCB became a tedious task. There are only development boards in the market with this ST7735 display but not the display alone. So, I had to surf the internet to find out the vendor for this display, luckily \u2018Seeed Fusion\u2019 technical team helped me in finding the vendor for this component.<br>Also, the technical team found a mistake that slipped my eye in the PCB design. Thank you, the \u2018Seeed Fusion\u2019 team, for figuring out the mistake in the design instead of blindly assembling the components as suggested.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Briefly evaluate the Seeed Fusion PCBA service.<\/h3>\n\n\n\n<p>My overall experience with the Seeed Fusion team is awesome. Their technical team is conscious and thoroughly examines your design. They even helped me to outsource a few critical components. Without their help in sourcing the components, I might have compromised on a few features of the \u2018directMessage.\u2019 Their assembly service is super fast. And they helped me in clearing the customs. Once again, thank you to the Seeed Fusion team.<\/p>\n\n\n\n<p class=\"has-medium-font-size\"><strong>Get your <a href=\"https:\/\/www.seeedstudio.com\/blog\/2023\/10\/19\/manufacture-your-wio-e5-based-pcba-designs-for-free-with-fusion\/\" target=\"_blank\" rel=\"noreferrer noopener\">Wio-E5 project manufactured for FREE<\/a> with Seeed Fusion PCB Assembly Service<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1030\" height=\"563\" src=\"https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2023\/11\/image-16.png\" alt=\"\" class=\"wp-image-88218\" srcset=\"https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2023\/11\/image-16.png 1030w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2023\/11\/image-16-300x164.png 300w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2023\/11\/image-16-768x420.png 768w, https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2023\/11\/image-16-1024x560.png 1024w\" sizes=\"(max-width: 1030px) 100vw, 1030px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center has-small-font-size\"><em><a href=\"https:\/\/www.seeedstudio.com\/blog\/2023\/10\/19\/manufacture-your-wio-e5-based-pcba-designs-for-free-with-fusion\/\" target=\"_blank\" rel=\"noreferrer noopener\">Wio-E5 PCBA Sponsorship Service<\/a><\/em><\/p>\n\n\n\n<p>To accelerate the development of IoT industry to the next level, Seeed is 100% sponsoring Wio-E5 projects with the Seeed Fusion PCB Assembly Service for all hardware enthusiasts, designers, makers, and engineers around the world!<\/p>\n\n\n\n<p>Good ideas need to be discovered, and good projects deserve to be recognized, realized and widely disseminated! Each person is limited to two PCBA boards 100% completely FREE for one design, including PCB fabrication, the cost of parts, assembly and shipping. The design must include Wio-E5. <\/p>\n\n\n\n<p>If you have an interesting concept for Wio-E5 and are willing to share it with the community, share it with us and we can help you make it a reality with Seeed Fusion\u2019s one-stop-shop capabilities. Get 2 boards fabricated and assembled completely free with Seeed Fusion\u2019s turnkey PCB Assembly service.<\/p>\n\n\n\n<p>Furthermore, choose all your parts from\u00a0<a href=\"https:\/\/www.seeedstudio.com\/opl.html\">Open Parts Libraries (OPL)<\/a>\u00a0and reduce the lead time to as little as 7 working days. Meanwhile, if you have mass production requirements, we highly recommend taking advantage of the Seeed Fusion PCB Assembly service and\u00a0<a href=\"https:\/\/www.seeedstudio.com\/blog\/2021\/05\/13\/power-up-pcba-10-lora-e5-for-just-5-90-with-seeed-fusion-pcb-assembly\/\">get the Wio-E5 modules for only\u00a0<strong>US$7.90<\/strong><\/a><strong>\u00a0<\/strong><a href=\"https:\/\/www.seeedstudio.com\/blog\/2021\/05\/13\/power-up-pcba-10-lora-e5-for-just-5-90-with-seeed-fusion-pcb-assembly\/\">(28% discount, original price\u00a0<strong>US$10.90<\/strong>).<\/a><\/p>\n\n\n\n<p><strong>Take action to bring your Wio-E5 projects to the next level!<\/strong><\/p>\n\n\n\n<p class=\"has-small-font-size\">Note: The LoRa\u00ae Mark is a trademark of Semtech Corporation or its subsidiaries.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Have you ever slipped off your group while hiking, climbing, kayaking, or mountain biking in<\/p>\n","protected":false},"author":3601,"featured_media":73561,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"0","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"iawp_total_views":0,"footnotes":""},"categories":[4391,4705],"tags":[4415,304,2026,3710,4,132],"class_list":["post-73560","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-build","category-seeed-studio-fusion","tag-fusion-pcba-case-study","tag-iot","tag-lora-iot","tag-lora-e5","tag-pcb","tag-fusion"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Private Communication Device &#8211; 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to tackle remote location tracking and private communication problems.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.seeedstudio.com\/blog\/2022\/11\/21\/private-communication-device-a-lora-navigation-system-based-on-seeed-wio-e5-and-fusion-pcba\/\" \/>\n<meta property=\"og:site_name\" content=\"Latest News from Seeed Studio\" \/>\n<meta property=\"article:published_time\" content=\"2022-11-21T05:51:06+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-11-29T06:37:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.seeedstudio.com\/blog\/wp-content\/uploads\/2022\/11\/1042171667997469599-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1593\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Victor Liew\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Victor Liew\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.seeedstudio.com\/blog\/2022\/11\/21\/private-communication-device-a-lora-navigation-system-based-on-seeed-wio-e5-and-fusion-pcba\/\",\"url\":\"https:\/\/www.seeedstudio.com\/blog\/2022\/11\/21\/private-communication-device-a-lora-navigation-system-based-on-seeed-wio-e5-and-fusion-pcba\/\",\"name\":\"Private Communication Device &#8211; 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