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wheel_rfm69_counter/pcb/README.md
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2026-08-31 22:43:51 -04:00

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# Wheel Counter, Battery Powered, RFM69 at 433MHz
## Objective
- Monitor how much critters are running on their wheels, at [The Creature Conservancy](http://www.thecreatureconservancy.org/). Physical activity could correlate with health
- Create a wireless, battery powered, sensing network for additional sensors in the future
## Features
- NFC antenna for quick reading/changing of metadata (i.e. setting the animal name for transmission)
- RTC (Real Time Clock)
- N-MOSFET polarity protection
- Several debug switches
- TagConnect interface
### Schematic
![Schematic](assets/schematics.png)
### PCB
![PCB](assets/pcb_with_labels.png)
## What's Next
- Populating PCB
- Writing code
## License: GPLv3 where not covered by other licenses
## Resources
NFC antenna design taken from [Sparkfun's implementation](https://www.sparkfun.com/products/21274)
Footprints from various sources online, including Sparkfun and Adafruit