M5Stack Faces Pocket Computer with Keyboard/Game/Calculator

How to upgrade the FACES panel? PLS download Source File from: github.com/m5stack/FACESFeatures:Equipped with a full keyboard panel, digital panel as well as Gameboy panel, are free to change the different operating community surface.Each panel can be modified to upgrade, just like Arduino Pro, download firmware through ISPBuilt-in 650mAh battery, set with magnetic charging baseCompatibility: All CompatibleState of Assembly: Ready-to-GoBundle: NoneModel: M5Stack GPS Moduleesp32240MHzWIFIBLE2.0LCDTF-cardSpeakerBatteryinsideSpecification:NW: 176gGW: 265gPlease note: Boot- turn on , press the swith onceShut down-power off, press the switch twice in successionPlease use the charging base when it need charge, pls note  the charging base does not point when charging,  the battery is 650mAh, It takes about 30 minutes to fully charge, the battery can be used for about an hour after it is full.Charging by connecting directly to the charger without using the charging base it will reset and will not shut down.A little noisy is normal that comes out when you play a game.   Packing List: 1 * Grey Mpu9250 Core1 * Keyboard Panel1 * Gameboy Panel1 * Number Panel1 * Battery Base(650mAh)1 * Charging Base1 * Type-C Cable Gameboy Panel