I've tried looking around for as much information as I could gather to build really small wearable electronics that could power themselves by generating energy with movement.
I know that the technology already exists in watches. There are watches that produce their own energy using a small generator that spins when the wearer moves its arm around. The energy is stored in a capacitor to make the watch work quasi-infinitely as long as the wearer moves enough throughout the day so that enough energy is generated. (some info here : http://en.wikipedia.org/wiki/Automatic_quartz )
here's a number of questions I hope can get answered
- How much energy can these devices produce / store?
- Is there any other devices aside from watches that are powered using only kinetic energy?
- Is there any schematics on how to create a kinetic generator for low-power devices?
wikipedia os a neger-ending source os wisdom: have a look at https://en.wikipedia.org/wiki/Energy_harvesting#Human_power
Switch to google and search for "energy harvesting" plus inductive resp. piezo to dig into the most prevalent implementations. To give just 1 of the plethora of hits: http://www.mdpi.com/1996-1073/10/10/1483
Hello,
I think this is referred as energy harvesting. There is a company called Enocean that actually has those kinetic modules:
https://www.enocean.com/en/technology/energy-harvesting/
I hope this information is useful.
We are using a Kinetron device for powering an TI CC2650 with BLE included (http://www.ti.com/product/CC2650) for measuring temperatures and humidity (BME280) in vehicles.
After having real trouble finding an appropriate sensor/controller/software configuration, we were successful an it's working fine. As Harvester we decided for TI BQ 25570. It sends every 500ms a short BLE message. We can support, if you need more information.
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