Personal Accomplishments<\/strong><\/h3>\nOne of the tasks assigned to me was to make the infrared sensor work with the rest of the system. The sensor should signal the Raspberry Pi when a customer is within 0.3 – 1m away from the kiosk.<\/span><\/p>\nHC-SR501 PIR sensor (front & back)<\/span><\/p>\n![\"\"](\"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-content\/uploads\/sites\/248\/2023\/02\/Screenshot-2023-02-18-at-10.21.31-PM-300x139.png\")
<\/p>\n
After doing some research, I made a list of hardware components I needed:<\/span><\/p>\n1 x\u00a0HC-SR501 PIR sensor<\/span><\/p>\n1 x 830-point solderless breadboard<\/span><\/p>\n1 x Raspberry Pi holder compatible with Raspberry Pi 4B<\/span><\/p>\n1 x <\/span>T-shape GPIO Extension Board<\/span><\/p>\n1 x 20cm 40-pin Flat Ribbon Cable<\/span><\/p>\n5 x <\/span>HC-SR501 Motion PIR sensor<\/span><\/p>\nResistors<\/span><\/p>\nJumper wires<\/span><\/p>\nI ordered them online, and they arrived this past week. I brought the Raspberry Pi home with me from the class inventory and spent Friday assembling them. <\/span><\/p>\n![\"\"](\"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-content\/uploads\/sites\/248\/2023\/02\/IMG_8793-300x217.jpg\")
<\/p>\n
The next step was to write a Python script that would allow us to visualize when motion is detected. I downloaded the Thonny IDE and used it to write the code because of its vanilla-like interface.<\/span><\/p>\nimport RPi.GPIO as GPIO \r\nimport time\r\n\r\nGPIO.setmode(GPIO.BCM)\r\nGPIO.setwarnings(False)\r\nPIR_PIN = 23\r\n\r\nGPIO.setup(PIR_PIN, GPIO.IN)\r\nprint('Starting up the PIR Module (click on STOP to exit)')\r\ntime.sleep(1)\r\nprint ('Ready')\r\n\r\nwhile True:\r\n if GPIO.input(PIR_PIN):\r\n print('Motion Detected')\r\n time.sleep(2)\r\n<\/pre>\nIt prints \u201cMotion detected\u201d when the sensor detects movement (condition applied). Along the way I discovered a few places that caused bugs and fixed them by:<\/span><\/p>\n\n- Giving a 1-sec sleep to settle the sensor before entering the infinite loop.<\/span><\/li>\n
- Giving a 2-sec sleep in each iteration to avoid multiple motion detections.\u00a0<\/span><\/li>\n<\/ul>\n
After running this code, the shell should look like:<\/span><\/p>\n![\"\"](\"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-content\/uploads\/sites\/248\/2023\/02\/Screenshot-2023-02-18-at-10.24.20-PM-300x126.png\")
<\/p>\n
On schedule?<\/strong><\/h3>\nYes, my progress is on schedule.<\/p>\n
Deliverables for next week<\/strong><\/h3>\nIt doesn\u2019t make sense to add more code for the sensor until the backend is a bit more developed (currently at the design stage). Therefore, I will move on to working on the frontend (customer UI & staff UI). I will be discussing with Lisa, who is responsible for the speech recognition part, about what to display on the web pages as this is semi dependent on how & how fast speech is parsed.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"Related ECE Courses I learned about modularity and ethics in 15-440 Distributed Systems, 17-214 Principles of Software Construction, and 17-437 Web Application Development. An example of using the modularity principle would be that, when designing a distributed system that involves clients, proxies, and servers, it is important to divide the system into separate, independent components … Continue reading “Shiyi Zhang\u2019s Status Report for 02\/18\/2023”<\/span><\/a><\/p>\n","protected":false},"author":711,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[9],"tags":[11],"_links":{"self":[{"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-json\/wp\/v2\/posts\/81"}],"collection":[{"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-json\/wp\/v2\/users\/711"}],"replies":[{"embeddable":true,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-json\/wp\/v2\/comments?post=81"}],"version-history":[{"count":13,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-json\/wp\/v2\/posts\/81\/revisions"}],"predecessor-version":[{"id":97,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-json\/wp\/v2\/posts\/81\/revisions\/97"}],"wp:attachment":[{"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-json\/wp\/v2\/media?parent=81"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-json\/wp\/v2\/categories?post=81"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-json\/wp\/v2\/tags?post=81"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
HC-SR501 PIR sensor (front & back)<\/span><\/p>\n After doing some research, I made a list of hardware components I needed:<\/span><\/p>\n 1 x\u00a0HC-SR501 PIR sensor<\/span><\/p>\n 1 x 830-point solderless breadboard<\/span><\/p>\n 1 x Raspberry Pi holder compatible with Raspberry Pi 4B<\/span><\/p>\n 1 x <\/span>T-shape GPIO Extension Board<\/span><\/p>\n 1 x 20cm 40-pin Flat Ribbon Cable<\/span><\/p>\n 5 x <\/span>HC-SR501 Motion PIR sensor<\/span><\/p>\n Resistors<\/span><\/p>\n Jumper wires<\/span><\/p>\n I ordered them online, and they arrived this past week. I brought the Raspberry Pi home with me from the class inventory and spent Friday assembling them. <\/span><\/p>\n The next step was to write a Python script that would allow us to visualize when motion is detected. I downloaded the Thonny IDE and used it to write the code because of its vanilla-like interface.<\/span><\/p>\n It prints \u201cMotion detected\u201d when the sensor detects movement (condition applied). Along the way I discovered a few places that caused bugs and fixed them by:<\/span><\/p>\n After running this code, the shell should look like:<\/span><\/p>\n Yes, my progress is on schedule.<\/p>\n It doesn\u2019t make sense to add more code for the sensor until the backend is a bit more developed (currently at the design stage). Therefore, I will move on to working on the frontend (customer UI & staff UI). I will be discussing with Lisa, who is responsible for the speech recognition part, about what to display on the web pages as this is semi dependent on how & how fast speech is parsed.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":" Related ECE Courses I learned about modularity and ethics in 15-440 Distributed Systems, 17-214 Principles of Software Construction, and 17-437 Web Application Development. An example of using the modularity principle would be that, when designing a distributed system that involves clients, proxies, and servers, it is important to divide the system into separate, independent components … Continue reading “Shiyi Zhang\u2019s Status Report for 02\/18\/2023”<\/span><\/a><\/p>\n","protected":false},"author":711,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[9],"tags":[11],"_links":{"self":[{"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-json\/wp\/v2\/posts\/81"}],"collection":[{"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-json\/wp\/v2\/users\/711"}],"replies":[{"embeddable":true,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-json\/wp\/v2\/comments?post=81"}],"version-history":[{"count":13,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-json\/wp\/v2\/posts\/81\/revisions"}],"predecessor-version":[{"id":97,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-json\/wp\/v2\/posts\/81\/revisions\/97"}],"wp:attachment":[{"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-json\/wp\/v2\/media?parent=81"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-json\/wp\/v2\/categories?post=81"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s23-teamd3\/wp-json\/wp\/v2\/tags?post=81"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}<\/p>\n<\/p>\nimport RPi.GPIO as GPIO \r\nimport time\r\n\r\nGPIO.setmode(GPIO.BCM)\r\nGPIO.setwarnings(False)\r\nPIR_PIN = 23\r\n\r\nGPIO.setup(PIR_PIN, GPIO.IN)\r\nprint('Starting up the PIR Module (click on STOP to exit)')\r\ntime.sleep(1)\r\nprint ('Ready')\r\n\r\nwhile True:\r\n if GPIO.input(PIR_PIN):\r\n print('Motion Detected')\r\n time.sleep(2)\r\n<\/pre>\n\n
<\/p>\nOn schedule?<\/strong><\/h3>\n
Deliverables for next week<\/strong><\/h3>\n