https://github.com/sdima1357/stm32f103c6t6_current_power_meter

Measure integral current and power consumption for battery powered microcontroller systems
https://github.com/sdima1357/stm32f103c6t6_current_power_meter

battery-life power-consumption power-consumption-measurement stm32

Last synced: 7 days ago
JSON representation

Measure integral current and power consumption for battery powered microcontroller systems

• Host: GitHub
• URL: https://github.com/sdima1357/stm32f103c6t6_current_power_meter
• Owner: sdima1357
• License: agpl-3.0
• Created: 2024-03-19T17:42:02.000Z (8 months ago)
• Default Branch: main
• Last Pushed: 2024-03-19T19:13:55.000Z (8 months ago)
• Last Synced: 2024-03-20T19:07:28.784Z (8 months ago)
• Topics: battery-life, power-consumption, power-consumption-measurement, stm32
• Language: C
• Homepage:
• Size: 12.9 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

        
I make several battery power projects for microcontrollers like IR remote control. I seeking for commertial solutions and can't see less the $500 systems :(

So , i had problems measuring & calculating battery life with these projects , and decided to make some simple automatic measurement system with few bucs budget.

BOM:

stm32f103c6t6 (cheapest blue pill)    ~($1.5)

st7789 spi display                    ~($2)

resistors + capacitors + wires + schottky diode ~(2$)

Requirement: 1uA - 150mA current with 5V-4V with precision +-5% 

Lines on photo display:

current current mA :)

mean current   mA

current voltage V

time from start Sec

consumed energy in mAs

consumed energy in J

Can be used for  battery life calculation and debug low power modes of microcontrollers. 

WIP