How to use(this is youtube link)：
In robot competitions such as WRO and RCJ, the stability of the robot is very important. One of the key parameters affecting stability is the：battery. However, the EV3 software only provides a percentage of the power that has no use, and there is no current voltage …, so adjusting the robot is actually very inconvenient..
So we made a tool, allow you can Measuring voltage、current and Battery Level without 3rd Party Firmware~~ this tool support original Lego Firmware.🎉
在WRO、RCJ等機器人競賽，機器人的穩定性可謂非常重要，其中一項影響穩定性的關鍵參數就是：電池。 於是我們便開發出了一個可以於EV3上直接檢視電池狀況的工具，直接利用Lego EV3底層的ByteCode製成，所以完美支持原生的EV3韌體，本工具以EV3 App形式存在，除非重新刷機，否則該應用都會一直存在的哦，只要沒把原生Lego VM移除的韌體基本上都支持~🎉
For More Information：https://ofdl.tw/en/ev3-hacking/ev3-battery-view-tool/ 更多資料：https://ofdl.tw/ev3-hack/ev3-battery-view/
This tool was program by Lego Assembly Language.