2020NSE_SSLB4
/
BMP280_20200729
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Revision 0:324e4a46d8ae, committed 2020-07-29
- Comitter:
- momoa
- Date:
- Wed Jul 29 06:05:58 2020 +0000
- Commit message:
- Initial commit
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/BME280.lib Wed Jul 29 06:05:58 2020 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/MACRUM/code/BME280/#c1f1647004c4
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Jul 29 06:05:58 2020 +0000
@@ -0,0 +1,49 @@
+/*
+BMP280から気圧・温度を取得してCAN送信・シリアル送信．
+気圧->5回移動平均．
+<BMP280ピン設定>
+CSB : HIGH
+SDO : LOW
+*/
+#include "mbed.h"
+#include "BME280.h"
+
+BME280 bmp = BME280(PB_7, PB_6); // pin30,29 SDA,SCL
+Serial pc(PA_9, PA_10, 115200); // pin19,20 TX,RX
+
+#define N 5
+float pressure_ave = 0.0f; // 気圧[hPa]
+float pressure_new = 0.0f;
+float buff_p[N];
+float sum = 0.0f;
+int cnt = 0;
+float tem = 0.0f; // 温度[C]
+char senddata[5];
+union Float2Byte{
+ float _float;
+ char _byte[4];
+}f2b;
+
+int main(){
+ wait(0.1);
+ bmp.initialize();
+ for(int i;i<N;i++){
+ buff_p[i] = bmp.getPressure();
+ sum += buff_p[i];
+ }
+ pc.printf("Start.\n\r");
+ while(1){
+ sum = sum - buff_p[cnt];
+ pressure_new = bmp.getPressure();
+ buff_p[cnt] = pressure_new;
+ sum = sum + pressure_new;
+ cnt++;
+ if(cnt == N) cnt = 0;
+ pressure_ave = sum/N;
+ tem = bmp.getTemperature();
+ pc.printf("Pre[hPa]: %f\n\r", pressure_ave);
+ pc.printf("Tem[C] : %f\n\r", tem);
+
+ wait(0.0005);
+ }
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Wed Jul 29 06:05:58 2020 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/mbed_official/code/mbed/builds/e95d10626187 \ No newline at end of file