Airman17054
Newbie level 2
My current project is to build a battery monitoring circuit to give a battery charge reading for an RC plane.
The battery i want to monitor is a 4.8v NiCD. my current idea is to have a segment of 9 LEDs, 3 green, 3 yellow and 3 red. as the battery goes between these 'health' levels i want the lit LED to progressively move down.
So the health levels will be
Green 1: Fully charged
Green 2:Almost fully charged
Green 3:Majority charged
Yellow 1:charged
Yellow 2:reaching the limit
Yellow 3:very close to the limit
Red 1:1 flight max
Red 2:not the best idea to fly
Red 3:dangerous level
So you would only fly if the battery was said to be on the 4th LED or above. another idea was to use a RGB LED and still have the 9 levels but instead of having 9 leads have 1 LED and have the timing altered
Level 1:Solid Green
Level 2:1 pulse every second
Level 3:1 pulse every 5 seconds
Level 4:Solid Blue
Level 5:1 pulse every second
Level 6: pulse every 5 seconds
Level 7:Solid Red
Level 8:1 pulse every second
Level 9: pulse every 5 seconds
For both of these systems i would have a push button mounted so that I would only be using battery power when i want to see the reading.
My current thing is using some form of MCU like an Arduino so i can program it to recognize the different battery levels and control the timing of an RGB LED.
Future additions would be to add a load while measuring the battery and re configure it to handle 6 v to 8.4 volts(but that is for a later date).
I know they have ready made store available but i want to build this myself for experience.
I would appreciate any ideas or feedback
cheers
Airman
The battery i want to monitor is a 4.8v NiCD. my current idea is to have a segment of 9 LEDs, 3 green, 3 yellow and 3 red. as the battery goes between these 'health' levels i want the lit LED to progressively move down.
So the health levels will be
Green 1: Fully charged
Green 2:Almost fully charged
Green 3:Majority charged
Yellow 1:charged
Yellow 2:reaching the limit
Yellow 3:very close to the limit
Red 1:1 flight max
Red 2:not the best idea to fly
Red 3:dangerous level
So you would only fly if the battery was said to be on the 4th LED or above. another idea was to use a RGB LED and still have the 9 levels but instead of having 9 leads have 1 LED and have the timing altered
Level 1:Solid Green
Level 2:1 pulse every second
Level 3:1 pulse every 5 seconds
Level 4:Solid Blue
Level 5:1 pulse every second
Level 6: pulse every 5 seconds
Level 7:Solid Red
Level 8:1 pulse every second
Level 9: pulse every 5 seconds
For both of these systems i would have a push button mounted so that I would only be using battery power when i want to see the reading.
My current thing is using some form of MCU like an Arduino so i can program it to recognize the different battery levels and control the timing of an RGB LED.
Future additions would be to add a load while measuring the battery and re configure it to handle 6 v to 8.4 volts(but that is for a later date).
I know they have ready made store available but i want to build this myself for experience.
I would appreciate any ideas or feedback
cheers
Airman
