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You will notice that we have installed several components on the PCB already. These components
are all surface mounted, which are a little more difficult to solder. The pre-assembly of these surface
mounted components makes your job of building this kit much easier.
Let's begin!
1. Headers: Your kit includes two kinds of headers: 14 shorter pins (which might come in a few
pieces) and 12 longer pins. We will first work with the shorter pins. These will be installed across
three different locations on the PCB. You will need to break or cut the headers into two pieces of
four pins each, and two pieces of three pins each.
a. Sensor headers: First, we'll install sensor headers. Carefully break two pieces of 4 pins each
from the row of headers. One of the 4-pin pieces goes in the "Right Sensor" position (2). Be
sure it is flat against the top of the PCB and solder it the same way as the ISP header: tack a
pin down and then solder the rest of the pins (3,4). The other 4-pin piece goes into the "Left
Sensor" position.
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3
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