admhadeef - My Awesome Moments

Panasonic Premium Aero Series Inverter vs Daikin Smarto Premium Inverter Air Conditioner

My master bedroom Panasonic aircond of 7 years broke down. I tried to repair it several times but it kept giving me problems. So I decided to buy new one.

Choices of Aircond

I have 2 aircond to consider as replacement:

1) Panasonic Premium Aero Series Inverter 1.5HP R32 gas (Model: CS-U13VKH)

2) Daikin Smarto Inverter 1.5HP R32 gas (Model: FTKH35A)

Aircond Considerations

For the aircond, my major considerations are:

1) Reliability

I have 2 Panasonic airconds based on my experience it is reliable doesnt give much problem. Only thing I expect that my Panasonic could last at least 10 years unfortunately only for 7 years.

At same time, I have 2 Daikin airconds so far I cant tell much of it, because I installed it at my rental properties.
So far no complaints from my tenants so it must be reliable.

I asked few servicemen most of them recommend Daikin because easy to service and find spare parts. Panasonic also easy but not as easy as Daikin.

2) Energy saving

Both Daikin Smarto & Panasonic Premium Aero Series are 5 Stars Energy Saving

Panasonic 1,010W

panasonic premium inverter aero series power rating 1:5hp

Daikin 940W

3) Smart Features

Both Panasonic Premium Inverter & Daikin Smarto can be controlled via your smartphone and can control it anywhere as it is connected via Wifi. You need first to install its mobile apps.

Daikin Smarto & Panasonic Premium Inverter, you have to purchase its accessories to enable the mobile apps use. You need to buy one adaptor for one aircond. So if you have 5 airconds, you need to buy 5 adaptors.

panasonic cz tacg1 - enables smart features for panasonic aircond — panasonic cz tacg1 – enables smart features for panasonic aircond

Features	Panasonic	Daikin
Remote Control
- Temperature	Yes	Yes
- Airflow Direction	Yes	Yes
- Fan Speed	Yes	Yes
- Modes	Yes	Yes
- Access Anywhere (via Internet)	Yes	Yes
View Energy Consumption	Yes	No
Timer	Yes	Yes
Manage Multiple Units	Yes	Not Sure
Error Notifications	Yes	No

panasonic mobile app error notifications

4) Price

Price I got from supplier

Daikin Smarto 1.5HP – FTKH35A + Wifi Accessories: RM 2,250 + RM1,004 = RM3,254.

Panasonic Premium Inverter CS-U13KVH + Wifi Accessories CZ-TACG1: RM1,810 + RM232 = RM2,042.

Panasonic is cheaper by nearly 40%.

My Choice – Panasonic Premium Inverter Aerowings

My reasons as follows:

1) Panasonic is way much cheaper vs Daikin
2) Its mobile app has more features e.g Energy usage and error notification.

References:

Panasonic Premium Inverter Air Conditioner
Panasonic Smart Control
Lazada Panasonic Wifi Accessories
Daikin Smarto Air Conditioner
Daikin Smart Control
Lazada Daikin Mobile Controller

Liesha School Trip to Kidzania

Liesha was excited to join her SK Bukit Jelutong school trip to Kidzania. She really wanted to go because she could go with her best friends. The day before going to Kidzania, she prepared her shoes, water tumbler and her bags.

According to her, she did more than 10 jobs while there. She said that SK Bukit Jelutong will organize another trip after final year exam and she would like to join again together with her friends.

Besides, teachers were really awesome by creating WhatsApp group with parents and shared live update the students photos. It made parents like joining the trip as well.

sk bukit jelutong school trip to kidszania

WebDriverIO Version 5 vs Version 4 Differences

I used webdriverIO library in my programming. Recently I upgraded from version 4 to version 5. To my horror so many breaking changes and not much explanation on the internet. So I put some difference on it.

WebDriveIO – Version 4

  const options = {
    desiredCapabilities: {
        browserName: 'firefox'
    }
  };

  const browser = webdriverio.remote(options);
  await browser.init();

  const select = "a";
  const attribute = "href";

  let results = await browser.getAttribute(selector, attribute);
  results = await browser.getHTML(selector);

const options = {

desiredCapabilities: {

browserName: 'firefox'

}

};

const browser = webdriverio.remote(options);

await browser.init();

const select = "a";

const attribute = "href";

let results = await browser.getAttribute(selector, attribute);

results = await browser.getHTML(selector);

WebDriverIO – Version 5

const options = {
    capabilities: {
        browserName: 'firefox'
    }
  };

  const browser = await webdriverio.remote(options);


  const select = "a";
  const attribute = "href";

  let elements = await browser.$(selector);
  let results = await elements.getAttribute(attribute);

  elements = await browser.$(selector);
  results = await elements.getHTML(selector);

const options = {

capabilities: {

browserName: 'firefox'

}

};

const browser = await webdriverio.remote(options);

const select = "a";

const attribute = "href";

let elements = await browser.$(selector);

let results = await elements.getAttribute(attribute);

elements = await browser.$(selector);

results = await elements.getHTML(selector);

The Difference

In version 5, options desiredCapabilities change to capabilities
In version 5, need to put await in remote and no need to declare init() anymore as it is deprecated.
In version 5, use $(selector) to select elements before getting elements content or attribute.

Reference

Breaking Change WebDriverIO from Version 4 to Version 5

WebDriver version 5 Release Announcement

Embayu Damansara West Review

Scale Model

embayu damansara west scale model - swimming pool and planned block C — embayu damansara west scale model – swimming pool and planned block C

embayu damansara west scale model - pond garden — embayu damansara west scale model – pond garden

embayu damansara west surrounding price per sqft

Show Unit with 3 Bedrooms

embayu damansara west show unit - living room 2 — embayu damansara west show unit – living room

embayu damansara west show unit - living room — embayu damansara west show unit – living room

embayu damansara west show unit - dining area — embayu damansara west show unit – dining area

embayu damansara west show unit - third bedroom — embayu damansara west show unit – third bedroom

embayu damansara west show unit - second bedroom — embayu damansara west show unit – second bedroom

embayu damansara west show unit - master bedroom — embayu damansara west show unit – master bedroom

Layout of Type A1

embayu damansara west show unit - layout — embayu damansara west show unit – layout

Price List

Agent Contact

James – 011 3245 9299

Node Red Set POST Parameters for HTTP Request

It is easy to set POST parameters for HTTP request.

The Flow Diagram

node red set post parameters for http request flow diagram

Steps To Set Get Parameters

1) Inject Node

– Payload – can set to anything. In my case I use timestamp

2) Function Node

– Set POST parameters value here
– msg.headers must set the content type.
– All the POST parameters are set inside msg.payload and the parameter names must correspond to RESTFUL API that you query.

msg.headers={ 
    'Content-Type': 'application/x-www-form-urlencoded'
};
msg.payload = {};
msg.payload={ 
    'ID': 1159
};

msg.headers={

'Content-Type': 'application/x-www-form-urlencoded'

};

msg.payload = {};

msg.payload={

'ID': 1159

};

node red - function node setting post parameters for http request — node red – function node setting post parameters for http request

3) HTTP Request Node

– Choose method: POST
– Set the correspondent RESTFUL endpoint.

node red - http request node properties — node red – http request node properties

4) Debug Node

– Use to display the output

Notes:

Node Red version used – v0.20.7

Node Red Pass GET Parameters for HTTP Request

It is easy to set GET parameters for HTTP request. You need to use the mustache brackets inside the URL itself.

The Flow Diagram

Steps To Set Get Parameters

1) Inject Node

– Payload – can set to anything. In my case I use timestamp

2) Function Node

– Set parameter GET value here
– In my case I use parameter name “path” and “limit”, set as msg.path and msg.limit
– You can use any name for your parameter name but it be the same as in HTTP Request Node

node red function node set get http request parameters

3) HTTP Request Node

– Choose method: GET
– In the URL, use mustache brackets to declare your variable {{{path}}}
– The parameter name must be same as in the Function Node

4) Debug Node

– Use to display the output

node red debug output with GET parameter value

Notes:

Node Red version used – v0.20.7

Node Red Set Parameters HTTP Request GET – Flow File Example

House Wiring Guidelines

I do a lot of new wiring for my properties. Usually I just hire electrician or civil contractors to do wiring without much thought whether the wires they used are suitable or not in term of ampacity (the maximum current the conductor can carry continously).

Until one day, one electrician told me the wires that I used for my fan and lamps are too thin to carry the current. It could pose fire risks. This is eyes opener.

Few days after I got the advise, one of new wiring was overloaded. The wires inside were burnt.

wires burnt due to overload - it is used for fridge and air fryer using 0.75mm wires — wires burnt due to overload – it is used for fridge and air fryer using 0.75mm wires

So I did my own studies as a guidelines to me, so when I hire an electrician I would know whether the wires and the way they connect to the electric power is able to support or no the possible current usage.

Guidelines on Wires Size

This is a guidelines only better check with your trusted or certified electrician.

If the same wire use for fan, lamps, fridge etc, you must add all the amperes and from the derive the required wire cross sectional area.

Of course usually, electrician will put extra buffer for the wire size.

Usage	Expected Power (Watts)	Expected Current (Ampere)	Expected Wire Size - Cross sectional area (mm2)	Advisable Connection Type
Ceiling Fan	75	0.3125	0.5	Direct / Plug
Aircond (1 HP)	750	3.125	1.5	Direct
Water Heater	3,600	15	2.5	Direct
Fridge (450L)	46	0.1917	0.5	Direct / Plug
Air Fryer	1,400	5.83	2.5	Direct
Lamps	75	0.3125	0.5	Direct / Plug
Washing Machine	500	2.083	1.5	Direct

Ampacity based on single phase

Connection Type

This is my own definition not electrician definition. There are two types of connection:-

Use plug to existing plug point
Tap direct into existing wires in plug point.

Use Plug

The maximum current is 13 ampere as the fuse can only handle up to that ampere.

Direct Loop to Existing Plug Point

This is better at maximum if not mistaken it is loop directly to existing cable of 2.5mm2 or supported maximum current of around 22 ampere.

What to Avoid For Wiring

Water Heater

For water heater, don’t use plug better use direct loop to existing wires. Especially water heater produces vapor that might cause short circuit and easily makes the wiring wear and tear faster.

What is Watt, Ampere & Volts?

Watt is power unit with formula as below:

Watt (W)= Amperage (A) x Voltage (V)

Analogy with water garden hose:-

Water come out from garden hose (watts) = Water volume (Amperage) x Water pressure (voltage)

What is Wire Cross Sectional Area?

It is actually the area size of the wire “circle”. In Math, the formula for area of a circle = pi*radius^2

For example, based on below diagram the cross sectional area calculation

cross sectional area = pi*(101.9/2)^2
                     = 3.142*50.95^2
                     = 3.142*2,595.9
                     = 8,156.3

cross sectional area = pi*(101.9/2)^2

= 3.142*50.95^2

= 3.142*2,595.9

= 8,156.3

Recommendation on Wire Size

Ligthing &amp; Ceiling Fan: 1.5mm2
Aircond 1.5HP and below: 2.5mm2
Adding new plug / power point: 2.5mm2

Ligthing & Ceiling Fan: 1.5mm2

Aircond 1.5HP and below: 2.5mm2

Adding new plug / power point: 2.5mm2

Recommended Wiring Contractor

Below is my recommended wiring contractor for Shah Alam or Kota Damansara area.

Azworld Tech (Azrin) – 0 17-376 0530

Appointment on time
Expert and reasonable charging

References

Formula Wheel Electrics – reference sengpielaudio.com

Wire Size - Cross sectional area (mm2)	Maximum Current (A)	Maximum Powers (Watts)
0.5	3	720
0.75	6	1,440
1.0	10	2,400
1.25	13	3,120
1.5	15	3,600
2.5	22	Can't find the information
4.0	30	Can't find the information

Ampacity based on single phase

Wire Size & Ampacity
Wire Size & Ampacity 2
Wire Size & Ampacity 3
Wire Size & Ampacity 4

Lowyat Forum Discussion on Wiring

Detecting Similar Images

Use Case

I want to know programmatically whether listings posted at Mudah.My are similar or not even though it is posted by different persons and different date.

To do this, I think the best way is to detect whether the photos are similar or not.

Why To Know Same Property Is Advertised Over Period of Time?

I would like to know whether the property
1) price change over time, signalling time to purchase it
2) possibility owner becomes desperate to let it go if advertised for quite some time. So I can get better price

Same Property But Advertised by Different Agents and Different Date

All listings refer to same property by evaluating using naked eyes.
So now, I want to detect programmatically that all the listings are referring to same property by detecting those photos are similar.

Listing	Agent	Posted Date
Listing 1 URL Price: RM260,000	Dilla	05/07/2019
Listing 2 URL Price: RM260,000	Aiman	05/07/2019
Listing 3 URL Price:RM260,000	Norhayati	05/07/2019
Listing 4 URL Price:RM260,000	Fahana	05/07/2019
Listing 5 URL Price:RM260,000	Fazri	22/07/2019
Listing 6: URL Price:RM270,000	Marina	12/07/2019

Kitchen Photos

Seroja Apartment Listing 1 - Kitchen — Seroja Apartment Listing 1 – Kitchen

Seroja Apartment Listing 2 - Kitchen — Seroja Apartment Listing 2 – Kitchen

Seroja Apartment Listing 3 - Kitchen — Seroja Apartment Listing 3 – Kitchen

Seroja Apartment Listing 4 - Kitchen — Seroja Apartment Listing 4 – Kitchen

Seroja Apartment Listing 6 - Kitchen — Seroja Apartment Listing 6 – Kitchen

Bedroom Images

Seroja Apartment Listing 2 - Bedroom — Seroja Apartment Listing 2 – Bedroom

Seroja Apartment Listing 5 - Bedroom — Seroja Apartment Listing 5 – Bedroom

Technique Used

1. Step 1: Fingerprinting the Photos

Fingerprinting the photos is using image hashing technique. In this case, DHash will be used.

1. Step 2: Compare the Photos

After fingerprinting, image hash will be compared among listings. If the image hash are same or Levenshtein distance is less or equal to 2, then we can consider as the listings are referring to same property.

Results

Photos	Size	Noticeable Features	Image Hash (DHash)
Listing 1 - Kitchen	18KB 480x480	Kitchen - listing 1 ,listing 3 and listing 6 are similar	cc6c7a727e7c3e77
Listing 2 - Kitchen	19KB 640x480	Has door and wall fan	3f37333333333339
Listing 3 - Kitchen	18KB 480x480		cc6c7a727e7c3e77
Listing 4 - Kitchen	17KB 480x480	Kitchen - Listing 4 color is lighter compared to listing 1, 3 & 6	cc6e7a727e7c7e77
Listing 6 - Kitchen	18KB 480x480		cc6c7a727e7c3e77
Listing 2 - Bedroom	22KB 640x480	similar with bedroom listing 5 only size is different.	e1b90d0c8ccc84c1
Listing 5 - Bedroom	10KB 320x240		e1b52d0c8ccc84c1

Kitchen Photos

If we take Listing 1 as a base, we can say easily that it has same image hash with Listing 3 & Listing 6.

Listing 1 has Levenshtein distance of 2 with Listing 4.
Listing 1 has Levenshtein distance of 15 with Listing 5.

Bedroom Photos

Listing 2 and Listing 5 has Levenshtein distance of 2.

Conclusion

We can conclude photos are similar if their image hash is the same or their Levenshtein distance is less or equal to 2.

False Positive

What happens if different properties use same photos such as signage or building block? The algorithm will detect it as same property even though it is not.

To avoid this, we should establish a database of signage or building block to remove this false positive.

Photos Example

References:

Fingerprinting Images For Near Duplicate Detection
Python Code & Images Used
DHash Algorithm
Listing 1
Listing 2
Listing 3
Listing 4
Listing 5
Listing 6

Choices of Aircond

Aircond Considerations

1) Reliability

2) Energy saving

3) Smart Features

4) Price

My Choice – Panasonic Premium Inverter Aerowings

References:

Email Cancellation Confirmation from Shopee

Refund Of Cancelled Order

Order Cancellation

My credit card bank statement

So to cancel order for more than 3 days

WebDriveIO – Version 4

WebDriverIO – Version 5

The Difference

Reference

Scale Model

Show Unit with 3 Bedrooms

Layout of Type A1

Price List

Agent Contact

The Flow Diagram

Steps To Set Get Parameters

1) Inject Node

2) Function Node

3) HTTP Request Node

4) Debug Node

Notes:

The Flow Diagram

Steps To Set Get Parameters

1) Inject Node

2) Function Node

3) HTTP Request Node

4) Debug Node

Notes:

Guidelines on Wires Size

Connection Type

Use Plug

Direct Loop to Existing Plug Point

What to Avoid For Wiring

Water Heater

What is Watt, Ampere & Volts?

What is Wire Cross Sectional Area?

Recommendation on Wire Size

Recommended Wiring Contractor

Azworld Tech (Azrin) – 0 17-376 0530

References

Use Case

Why To Know Same Property Is Advertised Over Period of Time?

Same Property But Advertised by Different Agents and Different Date

Kitchen Photos

Bedroom Images

Technique Used

Results

Kitchen Photos

Bedroom Photos

Conclusion

False Positive

References: