I believe this August doorbell works only with existing USA door bell system, where the August door bell only accept AC voltage between 16V and 24V.
This doorbell is designed to directly replace the button press on the conventional doorbell in USA.

Take a look at some of these webpages:
http://diyhousehelp.com/how-to/doorbell-wiring-diagrams
http://www.electrical-online.com/understan...orbell-systems/


Original (Image taken from https://en.wikipedia.org/wiki/Doorbell):



After Installation:



So I guess for this August doorbell to work for your house, you got to have the entire doorbell system ready.

For the transformer, since USA main power supply is running at 110VAC, as oppose to 240VAC in Malaysia, your transformer has to be different.

Question for topic starter, does your house has existing chime unit ready?

This shall be the common doorbell setup in Malaysia house




If the topic starter does have existing indoor chime/doorbell unit ready, next step is have to measure the wires connecting to the door bell switch using a multimeter.
If the voltage measured is AC, and falls within the voltage range specified in the August doorbell, then it is a good to go.
If it is not, then consider changing to another indoor chime/doorbell.

One thing shall be noted: those battery operated only chime/doorbell won't work on August doorbell.

Just now I measured the voltage on my house doorbell press switch side, and I got 0.1X volt AC and 4.4X volt DC.
I have Hager WGDC01 (electronic) door chime and a normal doorbell press switch.

So from here I can say, not all doorbell or chime works the same.


TS, you still can get this thing work, using two ways:

1. With door bell. If you want to have ding dong sound when someone press your August doorbell, you have to search for a doorbell with transformer that output the AC voltage within the range specified on your August doorbell specification.

2. Without door bell. With no ding dong sound, you probably can just get a 240V to 16V AC step down transformer and connect directly to your August doorbell, all the video and WiFi will still work.

What do you mean by these questions?

The normal doorbell that has transformer built in, still have to connect to the 240V AC main supply, but the output voltage of the transformer may be different from one door bell to another. It depends on how the designer that design the door bell, and also what electrical components are used.

What I would advise is, go to physical shop, ask the shop owner or anyone familiar with electrical, to test out the door bell selling in the shop, use a multimeter (either from the shop or you bring your own), to measure the AC voltage value on the doorbell terminal that normally connects to doorbell switch. From there you can know whether if the door bell will work for your August door bell or not.

One example, take a look of these picture in one of the post in lowyat forum:
https://forum.lowyat.net/index.php?showtopi...post&p=76335242

In those pictures, you can see a white block that stated:
PRI: 230V ~ 50Hz
SEC: 11.8V ~ 6VA

With this information, you can know that the output voltage (or secondary voltage) of the transformer inside the doorbell is around 12 VAC.
So most likely the voltage of the doorbell switch side is also around 12V AC, but measure the terminals again to double confirm.
With this 12V output voltage, your August doorbell will not work with this door bell.

Congrats TS for getting this August doorbell working in the month of August.
Now you can focus on getting the setup looks neat and clean after functionality part of it settled.