YACWC

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
+