Hello! I wanted to share my problem and see if anyone has encountered something similar. My project is Sprinkler timer. Hardware: 1)Atmega328 with UNO bootloader on stripeboard (16Mhz crystal 18pf caps) 2)DS1307 on same stripeboard with battery (2x AAA) backup. 3)LCD 2x16 (cheapest) on other s…

Troubleshooting DS1307 and LCD

system May 3, 2012, 12:11am 3

Do both have a good +5V.
The LCD and the MOSFET need at least 4.5V.

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