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Accessing Battery Values

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Jeffrey Shen edited this page Jul 24, 2017 · 2 revisions

This library provides the ability to access the voltages of the main battery and that of the power expander battery (Useful information to adjust motor voltages and display on the LCD).

Setup

There is no additional setup required to track the main battery's voltage. If you want to monitor a secondary battery's voltage write #define USE_SECOND_BATTERY 1 in config.c. You also need to plug the status port of the power expander into a digital port on the cortex. In RobotC, define a potentiometer called "PWR" that is mapped to the port you plugged the power expander in.

Usage

To access the main battery's voltage call int getMainBatteryVoltage() which returns the voltage in milliVolts.
To access the secondary battery's voltage (if defined), call int getSecondBatteryVoltage() which returns the voltage in millivolts.

Parallax.c: Library for Competitive VEX Robotics.

Developed in Andover, MA by Jeffrey Shen for Phillips Academy Robotics

Beginner Features: #2ecc71
Intermediate Features: #f1c40f
Advanced Features: #c0392b

Overview

Home
Getting Started
Updating

Auton/Pre-Auton

#2ecc71 Controlling the LCD
#2ecc71 Using Autonomous Modes
#2ecc71 Custom Pre Auton Procedure

User Control

#2ecc71 Using Autonomous Modes in User Control
#f1c40f More Remote Functionality
#2ecc71 Configuring Bailout Button
#2ecc71 Custom User Control Procedure

Motor Control

#f1c40f Slew Rate Control

Movement

#c0392b PID Control
#c0392b Drive Train Control

Sensors

#2ecc71 Accessing Battery Voltage
#2ecc71 Controlling LEDs
#f1c40f Sensor Struct

Debugging

#f1c40f Enabling Debugging

Miscellaneous

#2ecc71 Utility Functions

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