readme update

6 years ago · f6ca3611e0
parent fe37b87904
commit f6ca3611e0
1 changed files with 1 additions and 0 deletions
--- a/README.md
+++ b/README.md
@ -207,4 +207,5 @@ Test the prototype.
    [ ] use cheaper diodes 583-MM4148-T in SOD-80C package
    [x] fix copper layer after using non-handsoldering resistor footprints
    [x] DIP switch must be pulled up at 2.5/3.3V or 2.5V line, not 3.3V
+    [x] RTC time loss at power down fixed with 1k+22uF - see page 54 of datasheet