I needed an ECG but faced long wait times to see a specialist. I decided to build a DIY ECG device using the AD8232 ECG module and an ESP32-S3 dev module with an LCD screen. After some tinkering, I was able to build a device that read ECG data and displayed it on a screen. I also added a feature to detect the frequency of the ECG data and calculate heart rate via the RR interval in realtime on a browser through websocket.

I have been using KeystoneJs for one of my projects. Keystone uses Prisma. I have been putting off using migrations for a while now so, I already have my production site with data and I do not want to lose my data to start using migrations. For this purpose, there is a technique called baselining […]

Trigonometry “the foundation” the branch of mathematics dealing with the relations of the sides and angles of triangles and with the relevant functions of any angles. Google Basics of Trigonometry Trigonometry in its core has a very simple foundation. Although being so simple, it blows my mind that its the base to all the complex […]

Scenario So you are developing a web or mobile app that is mostly static except for this one feature that would require a backend/database to store data. We will be looking at the solution that would require least effort and knowledge of AWS technologies. Prerequisites Why? As described in the Scenario, you don’t want to […]

Creating a Custom REST Endpoint Route in WordPress You might want to create a custom REST endpoint route in your WordPress site for several different reasons. To create a custom REST API route in WordPress, you can use the register_rest_route function in your theme’s functions.php. This function allows you to define your own endpoints that handle specific […]