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-# Ring oscillator with RP2040 PIO, MicroPython implementation
+# Ring oscillator with RP2040 PIO
 
 This is a demonstration of the RP2040's PIO system, which let you run several state machines independently of the CPU. There's exactly 0 overhead and the state machines run a custom assembly language with simplified instructions.
 
diff --git a/py/README.md b/py/README.md
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-# Ring oscillator with RP2040 PIO, C implementation
+# Ring oscillator with RP2040 PIO, MicroPython implementation
 
 Here is a MicroPython implementation of using the RP2040's PIO system for a [ring oscillator](https://pub.pages.cba.mit.edu/ring/). The PIO asm is a one liner: