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.
If you want to build your dream deck or patio you should anticipate costs starting at $8,000 and reaching up to $40,000 for multiple levels, stairs, outdoor speakers, fire place, and cooking area. researched the average cost of a simple patio and it turns out that on the low end a simple concrete pave patio can be installed for around $2000. A covered patio complete with over head fan will likely cost $5000 to $7000.