@@ -8,6 +8,7 @@ Create from an idea of http://www.instructables.com/id/DIY-Arduino-Battery-Capac
88![ Schema] ( https://github.com/xreef/BatteryCapacityTesterArduinoNANO/blob/master/Resources/BTester_schem.png )
99
1010## Assembly list
11+ `
1112Label Part Type Properties
121310K Trimmer potentiometer TRIMPOT package trimpot_pth_s3_lock_3386P; variant variant 2
131418650 Battery lipo
@@ -28,9 +29,10 @@ R3 10kΩ Resistor package THT; tolerance ±5%; resistenza 10kΩ; bands 4;
2829R4 10kΩ Resistor package THT; tolerance ±5%; resistenza 10kΩ; bands 4; pin spacing 400 mil
2930R10 10kΩ Resistor package THT; tolerance ±5%; resistenza 10kΩ; bands 4; pin spacing 400 mil
3031R11 10kΩ Resistor package THT; tolerance ±5%; resistenza 10kΩ; bands 4; pin spacing 400 mil
31-
32+ `
3233
3334## Shopping List
35+ `
3436Amount Part Type Properties
35371 TRIMPOT package trimpot_pth_s3_lock_3386P; variant variant 2
36381 LIPO 18650 variant
@@ -44,9 +46,10 @@ Amount Part Type Properties
44461 Arduino Pro Mini clone (compatible Nano)tipo Arduino Pro Mini (Clone comp Nano); variant variant 1
45471 10kΩ Resistor Power resistor
46486 10kΩ Resistor package THT; tolerance ±5%; resistenza 10kΩ; bands 4; pin spacing 400 mil
49+ `
4750
4851## Realization
49-
52+ `
5053To measuring voltage we use the principle of Voltage divider
5154https://en.wikipedia.org/wiki/Voltage_divider
5255https://startingelectronics.org/articles/arduino/measuring-voltage-with-arduino/
@@ -61,6 +64,7 @@ vcc --> reference arduino voltage;
6164The principle is that we measure the voltage afther and before the power resistor and so we can calculate millihampere that consumes the battery.
6265The MOSFET is used to stard and stop battery drain from power resistor.
6366I'm pretty scary, so I inserted 2 thermistors to monitorage battery and power resistor temperature.
67+ `
6468
6569![ Breadboard] ( https://github.com/xreef/BatteryCapacityTesterArduinoNANO/blob/master/Resources/breadboard01.jpg )
6670![ lcd on discharging] ( https://github.com/xreef/BatteryCapacityTesterArduinoNANO/blob/master/Resources/lcdDischarging02.jpg )
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