hi everyone.
i am making an circuit with an pic 18f2550 for check the capacity of lead batteries.
for this purpose i use an 5v relais for to connect an load to battery and check the current and voltage.
i have an problem.
i maked the circuit in way that it can work in two mode.
mode one: with external power supply way usb
mode two: directally from the battery by to check.
when i use the circuit in first mode (with an external 5v power supply), it work is good.
when i use the circuit in second mode (directally from the battery to check, the pic is reset when the load to discharge the battery is connected.
you have some idea for solve this problem?
thank you
kyu9971
i am making an circuit with an pic 18f2550 for check the capacity of lead batteries.
for this purpose i use an 5v relais for to connect an load to battery and check the current and voltage.
i have an problem.
i maked the circuit in way that it can work in two mode.
mode one: with external power supply way usb
mode two: directally from the battery by to check.
when i use the circuit in first mode (with an external 5v power supply), it work is good.
when i use the circuit in second mode (directally from the battery to check, the pic is reset when the load to discharge the battery is connected.
you have some idea for solve this problem?
thank you
kyu9971