Ok.
the hole process is for count the rain on days.
picture 1, it simpley the readouts, 4 digits display, cause i also need the time.
use of pull-down resistor, cause someone say i need them.
Picture 2
is the total counter since reset. could be a month.
output from 7490 i leading to 4081 gates, so that it can be selected.
use of pull-up resistor casue need to be sure that 7490 i really high,
Picture 3.
is on the left the daily counter, at midnight the "data" is shiftet 1 day to right.
until day -7 by 7475 latch.
Pictur 4
is contunie of latch and the control to move the "data" every day.
here i think i will need a 4017 more, cause i think 4017 will go high on next output before the output before will go low.
Picture 5
is the clock, so that the data can be moved at midnight,
and pull-up resistor and selectable by 4081 gates,
Picture 6
upper left, 1 hz generator, also with 128 hz output, to use for shifting data at midnight,
left low is a control, so if select button is pulled it starts a timer, so it will switch back after 9 seconds,
Right side is for start nd stop clock, and adjust it.
Picture 7 - 10
selecting from day -1 to day -7 and total rain, and clock.
Picture 11
just the switch. buttons.
Hope that will help you,
OR
Can someone explaine how and so, it can be in one microcontroller,
readout on 2*16 LCD display.
rain from 7 days, time and rain total.
Program code could be usefull.
RGDS
ForceMaster