Disassembled report separating "Amazon Dash Button" which was also introduced in Japan

"Amazon Dash Button" which my favorite item reaches home all the time just by clicking on a button is from December 5, 2016Available in JapanIt is being done. A state that the disassembled Dash Button which became available in Japan has been released to the public.

New Amazon Dash Button Teardown (JK 29 LP) | Matthew Petroff
https://mpetroff.net/2016/07/new-amazon-dash-button-teardown-jk29lp/

Dash Button is about the size of the palm of the hand, a simple device with only one button design and corresponding product design. The black part is a hook for wall hanging and it is possible to remove it.


On the back side, there is a light blue adhesive stick for pasting directly on the wall etc.


When removing the product seal on the surface, a plain surface of only the button appeared. Since the case is ultrasonically welded to the upper and lower parts, it is necessary to break open to disassemble.


When opening the inside, alkaline batteries for board and power supply came out. Furthermore, removing the three screws around the battery allows you to remove the board. By the way, it seems that Japanese was printed on dry batteries of this individual.


I removed the dry cell. Actually, this Dash Button was "2nd Generation" design, in the first generation lithium-ion batteries were soldered to the power supply. Although I'd like to say that I can exchange in the 2nd generation, in order to do that, I have to open the case for that, so I can not change the batteries again, basically it will be disposable.


A chip for controlling the operation is mounted on the button side board.


In the 2nd generation Dash Button, as a microcontroller controlling the whole(PDF)Atmel ATSAMG 55 J 19 A-MU(U1) is adopted. As a wireless communication chip(PDF)Atmel ATWINC 1500 B(U 19), Bluetooth Low Energy chip(PDF)Cypress CYBL 10563 - 68 FN XI(U22), and 32MB memory (U15) are carried.


Terminals for dry batteries are soldered directly to the back side.


It is like this when compared with the board of the first Dash Button (bottom). The coating of the substrate has been changed from green to blue, and the number of parts mounted is also decreasing slightly.


The new Dash Button has adopted an alkaline dry cell, and the capacity of the power supply is decreasing. So, here is the graph comparing the power consumption of the old and new Dash Button. In the standby state where the button is not pushed, the power consumption of the new Dash Button is less than 2.0 microamps, which is clearly lower than the former Dash Button. It increases to about 4.0 microamps when the button is pressed, but it returns to the standby state in about 10 seconds, indicating that the power consumption is reduced.


As a result, at the old Dash Button, it was estimated that it could be used up to about 500 times at the new Dash Button, which was about 250 times as long as the battery life. The 2nd generation Dash Button seems to be promoting power saving by reviewing the design.