// // ring.ino // // ring oscillator test // // Neil Gershenfeld 8/12/21 // // This work may be reproduced, modified, distributed, // performed, and displayed for any purpose, but must // acknowledge this project. Copyright is retained and // must be preserved. The work is provided as is; no // warranty is provided, and users accept all liability. // void setup() { pinMode(0,OUTPUT); } void loop() { while (1) { /* if (digitalRead(1)) digitalWrite(0,LOW); else digitalWrite(0,HIGH); */ if (digitalReadFast(1)) digitalWriteFast(0,LOW); else digitalWriteFast(0,HIGH); } }