wip

input_devices/RTC/hello.PCF8523.ino

@@ -43,7 +43,7 @@ void setup () {
     rtc.adjust(DateTime(F(__DATE__),F(__TIME__)));
     DateTime now = rtc.now();
     rtc.adjust(DateTime(now.year(),now.month(),now.day(),now.hour(),now.minute(),
-      10+now.second())); // add 10 second offset for time to flash
+      now.second())); // can add offset for time to flash
     }
   //
   // start RTC

input_devices/index.html

@@ -124,7 +124,7 @@
 <b>real-time clock (RTC)</b>
    <a href=https://www.digikey.com/en/products/detail/nxp-usa-inc/PCF8523T-1-118/2530422>PCF8523</a> <a href=https://www.adafruit.com/product/3295>module</a>
       <a href=RTC/hello.PCF8523.RP2040>hello.PCF8523.RP2040</a> <a href=RTC/hello.PCF8523.RP2040.png>board</a> <a href=RTC/hello.PCF8523.RP2040.jpg>components</a> <a href=RTC/hello.PCF8523.RP2040.top.png>top</a> <a href=RTC/hello.PCF8523.RP2040.holes.png>holes</a> <a href=RTC/hello.PCF8523.RP2040.interior.png>interior</a>
-         <a href=RTC/hello.PCF8523.ino>hello.PCF8523.ino</a>, video
+         <a href=RTC/hello.PCF8523.ino>hello.PCF8523.ino</a>, <a href=RTC/hello.PCF8523.RP2040.mp4>video</a>
 
 <b>location, atomic clock time</b>
    <a href=https://www.gps.gov/systems/gnss>GNSS</a> <a href=https://gpsd.gitlab.io/gpsd/NMEA.html>NMEA</a> <a href=https://www.u-blox.com/sites/default/files/products/documents/NEO-6_DataSheet_(GPS.G6-HW-09005).pdf>NEO-6</a> <a href=https://images-na.ssl-images-amazon.com/images/I/91tuvtrO2jL.pdf>GT-U7</a> <a href=https://www.amazon.com/Microcontroller-Compatible-Sensitivity-Navigation-Positioning/dp/B07P8YMVNT>module</a>