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PbMonitor v1.0

A Battery-Monitoring System for UPS and Energy Storage Applications

PbMonitor v1.0
PbMonitor v1.0
Monitor your battery bank's health with PbMonitor. This simple, low-cost solution tracks voltage, current, and temperature in real time, sending data via MQTT to Home Assistant for smarter battery monitoring in UPS, renewable energy, and off-grid applications.
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Materials

Component list

Component List

Resistors

R1, R3, R4, R5, R7 = 100 kΩ

R2 = 28 kΩ
R4 = 12 kΩ
R6 = 8 kΩ

R8 = 6 kΩ

R11...R13 = 3.3 kΩ
​​​​TH1...TH3 = 5 kΩ   

 

Capacitors

C1 = 10 µF
C2 = 22 µF

C3 = 0.1 µF

 

Semiconductors

IC1 = MCP3008-I

T1 = AMS1117-3.3V

 

Modules and Connectors

K1 = Pin Header 1×5, 2.54 mm Horizontal

K2 = Pololu Current Sensor

K3 = I2C OLED Screen


 

 

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