what iot device shoud i connect?

[zhjygit]

Hi sir,this project is great, i connect a gps moudule with gpio 17 and gpio 18, i put maps with (13 14 15 16 resolutions) into sd card. I can get the gps location and display maps on the screen, i can see the speed of my foot about 3-6 km/h. How the speed data display?i don't connect anything like move sensors to the esp32s3 borad but gps modules. Of course,the speed display is not accurate， and the maps zoom in or zoom out is slow between 13 14 15 and 16 resolution maps. Is necessary to buy the HCM5883 + MPU6050+MPU9250, what the difference between them? Waiting for you reply.