johnny78
Full Member level 5
hi Guys
im trying to read an Ldr resistance with ADC input of Atmega328P
i want to use it to give me 3 coditions (sunny , Cloudy , No light) But im facing two problems
1:reading is easy but i've bought 10 pieces od LDR's & each one has its different reading when im testing with the DMM
2: in sunny condition the LDR get hot & the reading is unstable
any ideas to fix this will be great
thnaks in advance
Johnny
im trying to read an Ldr resistance with ADC input of Atmega328P
i want to use it to give me 3 coditions (sunny , Cloudy , No light) But im facing two problems
1:reading is easy but i've bought 10 pieces od LDR's & each one has its different reading when im testing with the DMM
2: in sunny condition the LDR get hot & the reading is unstable
any ideas to fix this will be great
thnaks in advance
Johnny