To enable the Real Time Clock to maintain time in a powered off state, I have connected a LR44 battery, + to pin 5 socket 1 and - to pin 10 socket 1 on my Hydra main board as per the schematic. However when I apply power to the Hydra the TE35 LCD screen back light illuminates but nothing else occurs. When I remove the connections for the battery everything works fine, but of course the RTC does not maintain time.
@ Gus - The LR44 was a 1.5 volt battery, I just tried a rechargable rated at 1.2 volts, tested at 1,25 volts, and had the same issue and then tried a rechargable that had been drained to .79 volts and still had the same problem. Are the pins that I am using correct?
Hopefully I didn’t damage something. I had read on the schematic that it was 1.2V but I couldn’t obtain any non rechargables at that voltage and the rechargables don’t keep the charge for as long as required for the application.
@ Aron - Other than what I indicated when I tried batteries, the Hydra is working normally . The Real Time Clock has been running under normal power input from DP module and is keeping accurate time. I have loaded various test programs and they have all loaded and functioned properly. Thus the main core seems fine. I am borrowing a power supply from our tech department and will try various voltages starting at 1 Volt then going up to 1.2 Volts and see what results I get. That will not solve my battery requirements. I will also test my raptor board. May have to switch boards, which is a bummer as I purchased 3 Hydras for this project, if I can’t get it to work. I assume someone has done battery power for the RTC on the Hydra so I am puzzled about my issues.