So, just make sure you have node and node-gyp as well as the Broadcom library to build the project. 1  Download BCM2835 library and follow installation instructions. 2  In case, you don't have node-gyp, install it first: $ sudo npm install node-gyp -g. 3  Generate the configuration files. $ node-gyp configure.  Build the component. $ node-gyp build.
Cost to Install Cement Patio. While the cost of installing a cement patio can range from $5 to $11 per square foot, the average cost for the typical cement patio installation is generally closer to $8 per square foot.
For a basic 120 square feet project in zip code 47474, the benchmark cost to Install a Concrete Patio ranges between $8.14 - $10.02 per square foot* . 1. Set Project Zip Code Enter the Zip Code for the location where labor is hired and materials purchased.