Buy Now! The Barometer sensor cover with foam insert provides isolation of the baro sensor from wind, sunlight and prop wash. This greatly improves the altitude hold features of the copter.
On V3 models the baro cover and foam simply snap into place where there are matching holes on the board and plastic holding pins on the cover. On V1E models there are no pin holes but the baro cover can be easily retrofitted and glued onto the board.
You may be asking why direct sunlight would affect the sensor. Barometric sensors also require temperature measurement to accurately calculate the altitude. Direct sunlight heats the metal case of sensor and causes temperature fluctuations as well as a difference between the ambient air and metal case temperature; like black pavement is much hotter than the air above it (in the summer).
In short, here are the steps to retrofit a V1E model:
Use a razor blade to cut the plastic nibs off and ensure the baro cover edges are flat so the super glue will adhere around all edges. If you haven’t already, remove the blue tape that is blocking the Baro. The blue tape protects the baro sensor during board cleaning and shipping.
Now test fit the baro cover onto the V1E board without using glue. Notice that there is a little cutout in the corner of the bar cover. It is to fit over the transistor shown at left. The corner of that transistor is just a little bit in the way thus requiring the cutout in the baro. The edge of the baro cover will fit snugly between the orange colored capacitor marked C24 and the baro.
Hold the baro orientated so that it will be easy to place directly on the board. Now apply a small bit of super glue around the edges of the baro cover. Be careful not to use too much or touch the foam as it would later turn hard and not breathe. I find it helps to squirt the glue onto a piece of paper and then use the applicator tip to transfer glue to the baro edges.
Now place the baro on the board and hold for 1 minute. Remember the corner cutout is to go over the transistor so hold the baro cover when applying glue so it can easily flip over and onto the board properly aligned. We’ve included some extra foam just in case you need to try again.
Let the board sit for 12 hours so the glue fully cures. Crazy glue is fast but it actually takes 12-24 hours to fully cure and reach maximum strength. You can try it a half hour after if you are gentle.