readme update

8 years ago · ae8fea489e
parent 473b5ff1aa
commit ae8fea489e
1 changed files with 8 additions and 0 deletions
--- a/README.md
+++ b/README.md
@ -50,3 +50,11 @@ RTC clock low ppm drift
 PushButtons: 6 (2+4)
             U
    A B    L D R
+
+
+# PCB Todo
+    SD card corrected footprint
+    RTC quartz and battery
+    SPI Flash chip
+    Oscillator
+    GPDI 3.3V-5V bidirectional level shifter