Sorry to post on this old thread, yesterday i soldered a 18650 ZB2L3 to a 18650 holder and started to play with it. i was thinking that it would be nice to graph the discharge curve of the cell, with a teensy reading polling voltage every seconds and sending it back to computer thougth USB.
Then i found this subject. So i understand what is a divider (2 resistances in series). Which i did on the breboard. And with my own voltmeter, i see it is correctly divided.
Owning a teensy 3.1, i tryied to identify those ADC port. Seems it is in the middle of the board. Do i need to solder my cable there ?
Also, the ZB2L3 use a big resistance to discharge the cell. But also the Teensy to monitor the voltage. This is going to impact the discharge rate right ?
So if i understand the thread, it is suggested to use a mosfet, controller by the teensy, to open the circuit just the time for the teensy to read value, and close it right after, so that diminishes the impact of thoses two added resistance in the discharge load. Am i correct ?
Is there any schematics around to make things more clear for my newby mind ?
Then i found this subject. So i understand what is a divider (2 resistances in series). Which i did on the breboard. And with my own voltmeter, i see it is correctly divided.
Owning a teensy 3.1, i tryied to identify those ADC port. Seems it is in the middle of the board. Do i need to solder my cable there ?
Also, the ZB2L3 use a big resistance to discharge the cell. But also the Teensy to monitor the voltage. This is going to impact the discharge rate right ?
So if i understand the thread, it is suggested to use a mosfet, controller by the teensy, to open the circuit just the time for the teensy to read value, and close it right after, so that diminishes the impact of thoses two added resistance in the discharge load. Am i correct ?
Is there any schematics around to make things more clear for my newby mind ?