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5 Essential Things You Need To Have At Your Home During The COVID-19 Pandemic

COVID-19 is real and it is affecting everyone in every corner of the world. We have to protect ourselves and our loved ones from getting the coronavirus and also stop spreading the virus to others. Here are 5 essential things I think you need, at least, to have at home during the pandemic.

1. Face Masks

The face mask, either a surgical or medical mask, is essential during the COVID-19 pandemic. Face masks help slow down the spread of coronavirus. As long as you are not at home, you should wear a face mask wherever you go and change it regularly. 

I stock up some face masks (both adults and kids) especially when they are on sale. Nowadays, medical masks are widely available at online stores like Shoppee and Lazada. 

You may want to consider wearing a face shield when going to a crowded place. It is optically clear and protects the face and mask from direct splatter.

2. Hand Sanitizer and Disinfectant Spray

Hand sanitizer should be at home as well as with you while you are outside your home. Always choose a hand sanitizer containing a minimum of 60% alcohol. If you have a sensitive hand, you can get a hand sanitizer with moisturizer so it creates fewer problems for your hand.

Hand sanitizers are also available in small bottles and it is easy to carry in pocket and bag. Sanitize your hands whenever you touch a public area and there is no soap and water available.

Keep some disinfectant spays at home to clean your cellphones, car doors, bags, vegetable baskets, etc. You can use it easily to clean any surface which might be exposed. 

3. Thermometer 

A must-have item at your home even not in the coronavirus pandemic. Various types of thermometers are available out there. I think an infra-red-gun type of thermometer is the most convenient one. It measures body temperature from a distance, without contact, and thus provides safety from virus contamination via person-to-person contact.

4. Pulse Oximeter

A pulse oximeter is a small device, that you can clip on your fingertip, that uses light beams to estimate the percentage of oxygen in the blood without drawing a blood sample.

Is a pulse oximeter a necessary thing to have? I think it is recommended to have. Coronavirus cases reached a record high recently in Malaysia and some reports show that COVID-19 may cause hypoxia (a condition in which the body or a region of the body is deprived of adequate oxygen supply at the tissue level) without any symptoms and this is difficult to detect.

Keep one at home and measure regularly just in case you got COVID-19 but do not show any symptoms. COVID-19 may slowly affect your lungs and causing low blood conditions in your body.

You do not need to buy an expensive one that is used in a hospital. It’s quite cheap at the online store (mostly from China). It does not have to be very accurate because you just need to know your blood oxygen does not go below too far without any symptoms.

5. Supplements And Medicine

You need to ensure you have a good immune system during the pandemic. Stock some supplements, especially vitamins, that can help boost your immune system. Do more exercise and got more exposure to the morning sun (vitamin D).

Make sure your first aid kit contains all essential medicines such as painkillers and paracetamol (for both kids and adults). If any family member is suffering from chronic disorders like diabetes, or hypertension, make sure to stock up their medicine as well.

Troubleshooting A Flickering LED Downlight

I’m using LED downlights in my home as the main light source. One of them became flickering. After some research on the Internet, most of them will tell you that maybe the LED driver quality is not good and give unstable voltage to the LEDs.

So, I changed the LED driver that I ordered from the China websites. It works but a month later, the same LED downlight flickered again. I changed the LED driver again and it came back working again.

Last week it became flickering again. So I decided to change the LED driver again today. This time it does not work. The LED downlight is still flickering. I measured the voltage and current of the LED driver output and they are good and stable.

So I suspect one of the LED light inside the downlight is not working properly. There are 12 LED connected in series. Since the LED is providing constant current so it is ok to short one of the LED. So I short the LED one by one to test if the downlight will stop flickering without the shorted LED in the circuit.

I was right! One of the LED was causing the problem. It was not the LED driver problem! Since I don’t have a spare LED at home, I temporary short the LED legs to prevent it from working. And my LED downlight now working perfectly good!

LED Downlight
LED Downlight

The LED downlight cost was about RM60. The LED is rated at 12W and it has 12 LEDs inside. So each of the LED is rated at 1W. I’m going to replace it with the 1W LED I bought from the China Website for my LED night light project, which only cost me about USD0.04 each. It wastes money if I replace the whole LED downlight with a new one :)

New Gadget – MacBook Pro with Retina Display (2015)

MacBook Pro with Retina Display
MacBook Pro with Retina Display

Ok. My new gadget is in the house now – MacBook Pro with Retina Display 2015. It replaces my nearly 5 years old’s MacBook Air. My MacBook Air is still working good just that it creates a lot of heat and noise (fan) when running heavy stuffs like IDE and compiling source code.

Always want to replace one and now it is the time. MacBook Pro with Retina Display 2015 has more horse power than the Air, about the same thick & dimension of Air, better display, keyboard with back light (oh I can use it in night) but heavier.

Bought this at EpicCentre and come with some free gifts: sleeve, 8GB USB drive and a keyboard protector.

The pre-installed OS is OS X Yosemite so I need another few hours to update to OS X El Captan (which gave some performance on my old MacBook Air).

Hope this gadget will last for another 5 years before another upgrade :)

McDonald’s Gift Voucher From Line

Thanks @LINEMalaysia for sending this RM10 McDonald’s gift voucher to me! You can get this when you are new user and actively use LINE within a specified period.

McDonald's gift certificate from LINE

LINE is one of the social networking application I use frequently recently. To me, I don’t use mainly for social networking but more on connecting to the merchants that I’m interested in to find out deals and freebie :)

 

Electronics Project – Raspberry Pi + Attiny85 + LCD 1620

I always want to start an electronic project that build a home automation system but I don’t have much time. Don’t have time is just a bad excuse. So to make thing starts, I start buying electronic components and devices that I need and trying them one by one.

[Read more…]

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