It is that time again! SparkFun Electronics will be closed Friday, January 13th for our annual inventory day. Please keep in mind that any orders placed after 2PM (Mountain Time) on Thursday, January 12th will not ship or be prepared for local pickup until we open for normal operations on Monday, January 16th. In addition, tours will resume on Friday, January 20th. Thank you for your patience!
This product has been retired from our catalog and is no longer for sale. This page is made available for those looking for datasheets and the simply curious.
Description: Replacement: None. We are no longer carrying this kit. This page is for reference only.
This kit was designed specifically for a high altitude balloon (HAB) project, but has many other uses. It was designed as a heater system for the electronics enclosure but you can use it to control a relay for other heating systems or wherever you might want to precisely control a relay.
This comes as an unassembled kit. It includes a pre-programmed ATmega328 and everything else you will need.
You can find more discussion here.
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