Smart temperature control for a cheap Soldering iron
3/29/2023

Smart temperature control for a cheap Soldering iron

I recently bought a less than 5 Euros cheap Soldering Iron which I decided to make smart by adding a control circuit to it. The project requires the following components The project had 3 main stages Budget The total cost for the project was The total budget came to 13.5 Euros, which is cheap. ūüėČ

DIY ECG/EKG Electrocardiogram
3/7/2023

DIY ECG/EKG Electrocardiogram

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.

Prisma Migrate: Baselining your existing database
9/25/2021

Prisma Migrate: Baselining your existing database

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 […]

Introduction to Polar Coordinates, plotting on radial diagrams
5/5/2021

Introduction to Polar Coordinates, plotting on radial diagrams

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 […]

Safe and Unsafe pins in ESP32 and ESP32-S3
5/29/2023

Safe and Unsafe pins in ESP32 and ESP32-S3

What are the pins that are safe

Tool to measure, transform, repair, and slice STL files online for free for 3D printing
9/6/2023

Tool to measure, transform, repair, and slice STL files online for free for 3D printing

I was looking for a free tool to do some measurements on my STL files before sending it for 3D printing. After installing a few desktop applications, none of them actually fulfilled my needs, until I found this free online open-source tool from 0x00019913 I’m a Teapot, Meshy meshy is a browser-based tool for performing measurements, […]

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