android-serialport-api-demo

It's the original reference project from Android 模拟器串口与PC虚拟串口通讯 - CSDN博客

android-stm32-uart-command

Fork project android-serialport-api-demo to android-stm32-uart-command and add CommandActivity.java to implement STM32 bootloader USART command protocol.

图为：CommandActivity UI

• put STM32_Robot.bin to /sdcard

  adb push STM32_Robot.bin /sdcard/STM32_Robot.bin

• app sign platform key

1. put "android.stm32.uart" folder into AOSP/packages/app/
2. entry path "AOSP/package/app/android.stm32.uart", then run command mm -j4
3. app signed platform key will be built in "out/target/product/your_device_name/system/app/android.smt32.uart/android.smt32.uart.apk"
4. install output android.smt32.uart.apk