SparkFun is my preferred parts and… SparkFun is my preferred parts and component supplier. Part of the goodness comes from the fact that I can get stuff in a day or two (I live in Arvada Colorado). My only complaint is occasionally they'll use a complex part whose manual is covered under an NDA from the manufacturer. This makes it difficult to impossible to open source my code that uses it.

Sparkfun surveyor/gnss reference station Great product…set the fp9 up with esp32 thing+ uploading data to rtk2go (free) and used the surveyor with an android phone over BT (doesn’t play well with iPhones). Designed layout in qgis (free) and staked out in swmaps (free)…worked perfectly for laying out a vineyard with a awe inspiring degree of accuracy.

Have been ordering parts from SparkFun… Have been ordering parts from SparkFun for many years and have never had a problem. Really appreciate that they're out there. I think they're doing a great service to us who enjoy electronics from hobbyist to professionals.

Qwiic Bus Quality and Functionality of device is 4.5 Stars. Also learning support on how a device works, schematic drawings, etc

Home Hobbyist Kudos to SparkFun Sparkfun has a very complete selection of products from processors, sensors, relays, control boards, etc for the home hobbyist or the professional designer. Products have always met or exceeded my expectations. Their Web site provides fantastic documentation for setting up and using must of their devices. And the YouTube videos are excellent resource and usually entertaining as well. If I were 20+ years old I would beg to work for this company.