Where to buy:
Thank you for considering to purchase my arduino shields and gadgets! Your contribution helps me keep up the free codes and libraries I have been maintaining. My purpose of selling these hardware is not to make money. Consider time and effort as an individual on designing hardware and software, sales, packaging and support, there is no/little monetary gain. I am just happy to provide hardware and software supports to those that really enjoy their arduino experiences and push their experiences to a new level.
Each gadget or shield has its own page and there is also a link to purchase directly from my blog site, or to purchase from one of the following online stores.
Online store introduction:
Several online stores carry my arduino shields and gadgets. Please click on their name or picture to be redirected to their websites.
inmojo.com is an online open-source hardware bazaar. Many well-known arduino hardware designers have their stores at inmojo, selling their latest designs. All sellers, myself included, ship orders from their own locations, world wide.
Not all designers maintain their own online stores, where they can decide what they want to sell. When they sell through an online store like sparkfun, they don’t have control over what they can sell and how soon they can list them for sale. Inmojo is like ebay for hobby electronics, providing the quickest way for designers to offer newest designs to their customers.
If I have successfully prototyped a new design and have parts for kits, I can offer it for sale at inmojo right away, where it will take weeks to get an established online store to agree to sell it, put materials online, send in the kits, and correct mistakes they make on descriptions. For example, my most popular item, the phi-2 shield, which has sold several hundred kits (including phi-1 shield), is not considered interesting enough by sparkfun. I don’t want to speculate why but a fact is they have very high margins on parts I include in my kits, like LCDs and I don’t 😉
Ruggedcircuits designs and sells their own arduino shields and gadgets and they carry products from other designers as well. Ruggedcircuits is also a well-known member of the arduino forum. The store is in Michigan USA, where all orders are shipped. Their name represents the aspect of some of the circuits they design.
Although Dipmicro is no longer carrying my kits, I’m keeping their information since they are a good parts supplier. Dipmicro is physically located in Canada but has been able to ship from USA by crossing the border at Niagara’s fall. It is a smaller online store but it carries tons of basic parts at incredible discount. If you have cross-compared dipmicro and sparkfun, you will find that some items sparkfun sells is 10 time as expensive and AFAIK, there is no difference in quality. If you want parts and some common ICs, you should visit them. Many arduino forum member root for dipmicro.
Using phi_prompt or phi_interfaces library in commercial products:
The libraries are free under GNU GPL V3.0. There is no need to make any purchase however you are using them. Hail open source!
If you want to integrate the libraries in a product that you will sell for money, please obtain a license for $30, which covers the current and all future updates of both libraries. This purchase grants you license to both phi_prompt and phi_interfaces libraries. Additional programming assistance can also be purchased at inmojo.com store but please contact me first regarding the type of programming help you need before purchasing.