phishman / mcp7940x Goto Github PK

When setting the time the minutes as entered are not necessarily what is printed back. If minutes are <=20, everything is fine. If minutes are >20, incorrect minutes are printed back. As an example:
Minutes entered ->Minutes printed back
20 -> 20
21 -> 31
22 -> 02
23 -> 13
24 -> 04
25 -> 05
26 -> 06
27 -> 17
28 -> 28
29 -> 39
30 -> 00
31 -> 11
41 -> 01
51 -> 11
I'm using an ESP8266 with D1 for CLK and D2 for SDA. I had to include time.h in the example sketch to prevent the ESP from crashing.