Quick References

As a constant learner, I get to touch upon many ideas in different areas. This category is for me to capture those ideas which I felt people may reference to get ahead of their tasks. Most of the time, I do come back to this section of my blog to remember what I had learnt in the past.

How to minimise payment fraud on your e-commerce store

If you are running an e-commerce store, then you can accept payments from your customers through a payment gateway.

When you accept payments on your e-commerce store, you will also want to reduce or even prevent payment fraud.

Indeed, payment fraud can have huge financial impact on your business.

Therefore, it is important for you to look at how you can minimise payment fraud on your e-commerce store.

Given that, let us explore how we can reduce payment fraud on our e-commerce stores.

An easy way to install Raspberry Pi OS – using Raspberry Pi Imager

Once got an microSD card for your Raspberry Pi in your mailbox, you can install an operating system to run it.

Typically, we download a Raspberry Pi image and use one of the imaging software to write it to our microSD card.

When the Raspberry Pi Imager came into the picture, the download step is consolidated into a single workflow.

Given that, this is how you can use the Raspberry Pi Imager to install Raspberry Pi OS.

How to show the temperature and humidity of your room on a Heltec WiFi Kit 32 attached to a DHT11 / DHT22 sensor

When you have a DHT11 / DHT22 sensor, you can measure the temperature and humidity of your room. If you attach the sensor to a Heltec WiFi Kit 32 development board, you will be able to put up the readings on a 0.96 Inch OLED screen.

Given these points, let’s look at how we can show the temperature and humidity readings of your room on a Heltec WiFi Kit 32 development board attached to a DHTXX sensor.

How to put your Raspberry Pi server on the internet with ngrok

As I had mentioned in how to host multiple websites from home, a typical network architecture looks like the following:
Home network architecture In such a case, we will need our router to hold a public IP address and perform port forwarding for our home servers.

However, there can be cases where we do not have the environment to put our server on the internet.

In such a situation, you will find ngrok useful. Since ngrok accepts traffic on a public address and relays that traffic through to the ngrok process running on your machine, you can put your server on the internet easily.
ngrok demo diagram

Given that, let’s look at how you can put your Raspberry Pi server on the internet with ngrok.

How to setup a Raspberry Pi security camera with motionEyeOS

When you want to turn your unused Raspberry Pi into a security camera, you can take a look at motionEyeOS.

So what is motionEyeOS? In short, motionEyeOS is a Linux distribution that turns your single board computer into a video surveillance system. Therefore, it is convenient to setup a Raspberry Pi security camera with motionEyeOS.

Given these points, let us look at how we can setup a Raspberry Pi security camera with motionEyeOS.

How to fix the issue of YouTube app not able to launch on Samsung Smart TV

After connecting my iPhone to my Samsung Smart TV via Chromecast, I accidentally powered off my TV with the remote.

Since the YouTube app was playing when I accidentally switched off my TV with the remote, something got screwed. When I switched on my TV again and launch the YouTube app again, a black screen showed up perpetually.

In order to have a reference in the future, I document the steps that I took to fix the issue.