I have also m5stickC, and there everything fine. this is the code example that works for me there:

#include <Arduino.h>

int sensorPin = 33; // Sensor Pin

void setup() {

Serial.begin(115200);
pinMode(sensorPin, INPUT); //Sets the specified pin to input mode. 设置指定引脚为输入模式
}

void loop() {
float raw = analogRead(sensorPin); // read the value from the sensor. 读取当前传感器的值
float Vout = raw/40953.6;
float P = (Vout-0.1)/3.0300.0-100.0;
Serial.printf("pressure: %f.2 Kpa\r\n", P);
delay(500);
}

so if someone can tell me how to connect this pressure sensor to AtomS3, I'll be grateful.
Thanks!