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Clock/README.md

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+# Analog Clock on a RP2040. #
+
+* Features:
+  * Direct Digital Synthesis (DDS)
+  * Dual 8 bit R-2R Digital to Analog converter
+  * Target device = Pico (also works on Pimoroni PGA2040)
+  * Set time through Putty terminal session over USB port
+ 
+* Limitations:
+  * USB serial requires Windows (10 or later)