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Firmware > Extra functionalities

Low Battery Monitor and Alarm :

One particular problem that users might encounter when flying the blimp is the idea of operating the blimp with a very low battery. Thus, a battery power monitor was implemented on the blimp. To do this, several modules in the MSP430F5510 was used including the power management and supply voltage monitor modules. When the battery voltage reached a certain threshold (ours was 3.1V), the blimp would alarm the user by turning on a LED. This threshold was set by modifying the core power supply to be above that limit and set the LED to watch the current power being provided. In addition, the blimp would correctly configure the SVM-High module. After that’s done, the corresponding interrupt flags would be set in addition to the PMM module being written.