Inside the Sensei Wireless
As we split the two halves to gain a view of the components used within this design, we see there is a small ribbon cable that needs to be disconnected to get very far into disassembly. We also see the battery taking up a lot of real estate on the main PCB.
This small PCB is out of the top half, and we find HCI switches used on the side buttons. These switches require firm pressure to activate, and give off an audible click. The center button, or the CPI button by default, is backed with a TTC switch that is easier to press, and slightly less audible.
These are the only numbers we can find on the battery, and it is what we are assuming is a Li-Ion battery pack, which is rated for 3.7Wh, or 1000mAh. From what we saw, the leads are soldered to the PCB, making a battery swap tougher, but not impossible if it were to fail at some point.
Under the left click button we find the first of two SteelSeries branded orange switches. The logo is hiding in the shadow of the scroll wheel support, but when we flip things around it is much more visible.
Since Pixart bought the Avago ANS 9800 sensor, either name is still appropriate, but SteelSeries was sure to call it by the Pixart name, and so will we. As we all know, this is the peak of current laser technology, and there is no faster sensor available.
This is a look at the Freescale MC9S08JM32 CLH 8-bit MCU. This is the heart of the activity that happens within the mouse, and from what we have seen in the past, it is more than capable of doing what SteelSeries offers in this design.
Under the scroll wheel, for its click function, we find another TTC switch that is a bit tougher to press than the one used for the CPI, but it is just as audible. Under where the right click button would be located, we can now see the SteelSeries logo on these thirty million click switches.
Putting things back together was easy enough, so we went ahead and turned on the Sensei to see what happened. We find that the scroll wheel is a constant orange, and the logo breathes orange LED by default.
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