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Step 4Attach the FSR's to a board
Cut out a 15" x 27" piece of foam or mat board. Tape the board to the back of the plywood you had cut earlier, making sure to cover up all six holes. Using a pencil trace out the 6 cup holes onto the foam board. Detach the foam board from the ply.
Now cut a slit at the bottom edge of each whole. This slit is for the FSR to slide through so that the sensor is visible on top of the board but the leads are hidden underneath. Cut the slit using a box cutter. When sliding the FSR into it try and widen the slit as much as possible to reduce the bend in the FSR. The FSR should bend as little as possible.
Tape down both the sensor and the leads with celophane tape. Be sure to cover the entire sensor with the tape as this will be the last defense against any leaking beer, so try to keep it airtight. The sparkfun FSR sensors have a sticky side that you can use to attach the FSR to anything, I did not use this but you are welcome to if you find it simple.
Attach the board to the wood temporarily using pushpins (might require a hammer). Make sure the sensors are lines up perfectly so that there is a sensor at the bottom of every hole for a cup.
Flip the board over so the wood side is up.
Now attach the breadboard to the same foam board and wire the sensors up! Check to make sure everything is working fine again using the code in step 3.
Now cut a slit at the bottom edge of each whole. This slit is for the FSR to slide through so that the sensor is visible on top of the board but the leads are hidden underneath. Cut the slit using a box cutter. When sliding the FSR into it try and widen the slit as much as possible to reduce the bend in the FSR. The FSR should bend as little as possible.
Tape down both the sensor and the leads with celophane tape. Be sure to cover the entire sensor with the tape as this will be the last defense against any leaking beer, so try to keep it airtight. The sparkfun FSR sensors have a sticky side that you can use to attach the FSR to anything, I did not use this but you are welcome to if you find it simple.
Attach the board to the wood temporarily using pushpins (might require a hammer). Make sure the sensors are lines up perfectly so that there is a sensor at the bottom of every hole for a cup.
Flip the board over so the wood side is up.
Now attach the breadboard to the same foam board and wire the sensors up! Check to make sure everything is working fine again using the code in step 3.
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