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@@ -1,27 +1,31 @@
# Analog Clock on an 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
-### Construction... ###
-![Hardware](https://github.com/oddwires/RP2040/blob/master/Clock/Images/Pico_DAC_bb.jpg)
-### Early Low res version on a digital scope... ###
-![Hardware](https://github.com/oddwires/RP2040/blob/master/Clock/Images/IMG_1215.JPG)
-### Looking so much better with the new clock face on a CRT scope... ###
-![Hardware](https://github.com/oddwires/RP2040/blob/master/Clock/Images/IMG_1222.JPG)
+There is also an asscociated Instructable detailing the hardware.
-* Supported commands
- * ? - Help
- * V - Version info
- * S - Set time: Notation: HH:MM:SS or HH,MM,SS
-HH can be either 12 or 24 hour notation. e.g. '03:00:00' is the same as '15:00:00'
-Delimiter can be either ':' or ','. e.g. '15:00:00' is the same as '15,00,00'
-MM is in the range 0<=MM<=59
-SS is in the range 0<=SS<=59
-Leading zeros can be ommited. e.g. '1:2:3' is the same as '01:02:03'
-Trailing parameters can be ommited, and will be set to zero. e.g. '12:15' is the same as '12:15:00' and '12' is the same as '12:00:00'
+https://github.com/oddwires/RP2040-code/assets/3483157/f9f16b66-ea9f-45c7-9ec1-8131fb11000c
-* Limitations:
+### Features:
+ * Two independent 8-bit Digital to Analog (DAC) channels using R-2R networks.
+ * Oscilloscope XY mode to plot an analogue clock.
+ * C++ program
+ * Single USB provides power, programming and control.
+ * Solder-less construction.
+
+### Supported commands
+ * ? - Help
+ * T - Set time
+ * Notation: HH:MM:SS or HH,MM,SS
+ * HH can be either 12 or 24 hour notation. e.g. '03:00:00' is the same as '15:00:00'
+ * Delimiter can be either ':' or ','. e.g. '15:00:00' is the same as '15,00,00'
+ * MM is in the range 0<=MM<=59
+ * SS is in the range 0<=SS<=59
+ * Leading zeros can be omitted. e.g. '1:2:3' is the same as '01:02:03'
+ * Trailing parameters can be omitted. e.g. '12:15' is the same as '12:15:00'
+ * L - Set level
+ * Notation: 2 digit percentage 0<=NN<=100
+ * V - Version info
+ * X - Invert X axis
+ * Y - Invert Y axis
+
+### Limitations:
* USB serial requires Windows (10 or later)