I each love and hate the ever present CR2032 coin cell. It’s such an ideal package deal that may be a “simply sufficient” energy possibility for a lot of small initiatives. The CR2032 is a mainstay of #badgelife and the pulsing coronary heart of many a small IoT node, nevertheless, there should be an terrible lot of them in landfill websites and we should always attempt to scale back that as a lot as potential.

One nice possibility may very well be this CR2032 Adapter. It’s a neat little design,  that emulates a CR2032 however is a wired answer. It options an onboard floor mount LM1117 so if this adapter is fed a 5V provide it fortunately provides a pleasant regulated 3V3. We will think about this is able to be actually helpful for static shows of initiatives needing a protracted energy provide maybe from a USB energy financial institution.  Actually, the undertaking creator mentions within the product itemizing that they had been requested to make a ‘desk mounted’ model of the Phillips Hue dimmer management items, initially powered by a CR2032. We will think about this making a really neat job to transform them to a steady provide.

The CR2032 adapter is provided totally assembled with you solely having to solder wires to the big and clearly labelled plus and minus pads. When you’ve received some gadgets that appear to chew via CR2032 batteries, think about giving this little system a attempt!