Component: Battery Cell Fuel Gauge (MAX1704x) (Electrical): Difference between revisions
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Revision as of 14:20, 13 July 2026
| Author | Matrix TSL |
| Version | 1.0 |
| Category | Electrical |
Battery Cell Fuel Gauge (MAX1704x) component
Provides accurate voltage and state of charge readings for one or two lithium ion cells. Based on the MAX1704x device range including: MAX17043 MAX17044 MAX17048 MAX17049
Detailed description
No detailed description exists yet for this component
Examples
No additional examples
Macro reference
ClearAlert
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ClearAlert |
| Clears the alert status bit, if the voltage is still below the specified threshold level then the alert interrupt pin will fire again. | |
 - VOID
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Return |
Initialise
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Initialise |
| Configures the I2C bus ready for communications and applies the settings defined in the properties. Also sets the default power level to awake. Returns 1 if the module is detected 0 if the module is not found | |
 - BYTE
|
Return |
ReadStateOfCharge
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ReadStateOfCharge |
| Reads the SOC and returns as a floating point value in % between 0 and 100 | |
 - FLOAT
|
Return |
ReadStateOfChargeByte
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|
ReadStateOfChargeByte |
| Reads the SOC and returns as a byte value in % between 0 and 100 | |
| - BYTE
|
Return |
ReadVoltage
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ReadVoltage |
| Reads the voltage and returns as a floating point value in Volts. | |
| - FLOAT
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Return |
SetPowerMode
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SetPowerMode |
| Allows the device to be put to sleep and woken from sleep. | |
 - BOOL
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Mode |
| 0=Awake, 1=Sleep | |
| - VOID
|
Return |
Property reference
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Properties |
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Settings |
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Cell Count |
| Set the chip type used to determine if you have 1S or 2S cells connected. | |
|
Voltage Per Bit |
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Alert Threshold |
| Sets the SOC level where the Alert pin will fire which can be used to trigger an interrupt. Alert status needs to be reset using the ClearAlert component macro. | |
|
Config Value |
| Specific to the lithium charcteristics of the cell. 0x97 is the default value. | |
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I2C Settings |
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Channel |
| Channel selection | |
|
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Baud Select |
| Baud rate option selector | |
|
Baud Rate |
| Baud rate to be used | |
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Connections |
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SDA |
| Pin used for SDA (data signal) | |
|
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SDA Remap Pin |
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SCL |
| Pin used for SCL (clock signal) | |
|
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SCL Remap Pin |
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Simulation |
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Sim Comms |
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Scope Traces |
| Selects if the scope traces are automatically generated or not | |
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Console Data |
| Selects if the console data is automatically generated or not | |
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API |
Component Source Code
Please click here to download the component source project: FC_Comp_Source_Battery_Cell_Fuel_Gauge_MAX17043_17044.fcfx
Please click here to view the component source code (Beta): FC_Comp_Source_Battery_Cell_Fuel_Gauge_MAX17043_17044.fcfx