bc41500d9c
* Restart MAX17043 from the scratch * revert change * Changed battery capacity in charge (capacity is the Ah value of the battery, this degrades over time when battery ages) * merge * Changing xsns_109 to 110 * fix nr * removed old xsns109 * Update I2CDEVICES.md * clean-up usage of Interface |
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| .. | ||
| demo_MAX17043.py | ||
| DFRobot_MAX17043.py | ||
| README_CN.md | ||
| README.md | ||
DFRobot_MAX17043
The MAX17043 is ultra-compact, low-cost,host-side fuel-gauge systems for lithium-ion (Li+) batter-ies in handheld and portable equpiment.It employs Gravity I2C interface,ultra-low opearting current, and real-time tracking of the relative state of charge (SOC) of the battery through Maxim's patented algorithm,eliminating the need for full-to-empty relearning and offset accumualtion errors.Plug and play to accurately measure the voltage and remaining power of the battery. The module also features as a low battery power alert interrupt function. When the battery power falls below specified threshold, the ALR pin generates a falling pluse to trigger the external interrupt of the controller.One thing should mention that the default value of the battery low power interrupt alert threshold is 32%, this threshold can be set by the function set_interrupt().
Product Link（https://www.dfrobot.com/product-1734.html）
SKU: DFR0563
Table of Contents
Summary
Provides a microPython library for reading and interperting MAX17043 data over I2C.
Connection
Wires of the same color are linked together,and We only exemplify how this board is connected to the Fuel Gauge. When connecting , it is necessary to pay attention to the correspondence among pins, the connection diagram is as fellows.
- ESP32
Installation
To use this library download the zip file, uncomperss it to a folder named DFRobot_MAX17043 in your upyCraft workspace.
Methods
'''!
@brief MAX17043 begin and test moudle
@return initialization result:
@retval 0 successful
@retval -1 faild
'''
def begin(self):
'''!
@brief read battery voltage in mV
@return voltage in mV
'''
def read_voltage(self):
'''!
@brief read battery remaining capacity in percentage
@return battery remaining capacity in percentage
'''
def read_percentage(self):
'''!
@brief set MAX17043 interrput threshold
@param per interrupt threshold as %1 - 32% (integer)
'''
def set_interrupt(self, per):
'''!
@brief clear MAX17043 interrupt.
'''
def clear_interrupt(self):
'''!
@brief set MAX17043 in sleep mode.
'''
def set_sleep(self):
'''!
@brief wake up MAX17043.
'''
Compatibility
| MCU | Work Well | Work Wrong | Untested | Remarks |
|---|---|---|---|---|
| ESP32 | √ |
History
- 2018/04/14 - Version 1.0.0 released.
Credits
Written by ouki.wang(ouki.wang@dfrobot.com), 2018. (Welcome to our website)