CQ Publishing
トランジスタ技術2015年6月号mbedラジコン・カーp179 リスト2 障害物検知器のmbedメイン・プログラム
Dependencies: mbed
main.cpp@0:bb79ff3ee321, 2015-06-01 (annotated)
- Committer:
- YoshihitoShimada
- Date:
- Mon Jun 01 02:46:57 2015 +0000
- Revision:
- 0:bb79ff3ee321
sonar test program
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| YoshihitoShimada | 0:bb79ff3ee321 | 1 | #include "mbed.h" |
| YoshihitoShimada | 0:bb79ff3ee321 | 2 | |
| YoshihitoShimada | 0:bb79ff3ee321 | 3 | PwmOut S40kHz(P0_21); |
| YoshihitoShimada | 0:bb79ff3ee321 | 4 | |
| YoshihitoShimada | 0:bb79ff3ee321 | 5 | AnalogIn Ain(P0_13); |
| YoshihitoShimada | 0:bb79ff3ee321 | 6 | |
| YoshihitoShimada | 0:bb79ff3ee321 | 7 | DigitalOut StopSignal(P0_20); |
| YoshihitoShimada | 0:bb79ff3ee321 | 8 | |
| YoshihitoShimada | 0:bb79ff3ee321 | 9 | int main() { |
| YoshihitoShimada | 0:bb79ff3ee321 | 10 | |
| YoshihitoShimada | 0:bb79ff3ee321 | 11 | float threshold=0.2; |
| YoshihitoShimada | 0:bb79ff3ee321 | 12 | |
| YoshihitoShimada | 0:bb79ff3ee321 | 13 | S40kHz.period_us(25); // 40kHz |
| YoshihitoShimada | 0:bb79ff3ee321 | 14 | S40kHz.pulsewidth_us(12.5); |
| YoshihitoShimada | 0:bb79ff3ee321 | 15 | |
| YoshihitoShimada | 0:bb79ff3ee321 | 16 | while (1) { |
| YoshihitoShimada | 0:bb79ff3ee321 | 17 | if(Ain > threshold) { |
| YoshihitoShimada | 0:bb79ff3ee321 | 18 | StopSignal=0; // Red LED ON |
| YoshihitoShimada | 0:bb79ff3ee321 | 19 | } else { |
| YoshihitoShimada | 0:bb79ff3ee321 | 20 | StopSignal=1; // Red LED OFF |
| YoshihitoShimada | 0:bb79ff3ee321 | 21 | } |
| YoshihitoShimada | 0:bb79ff3ee321 | 22 | } |
| YoshihitoShimada | 0:bb79ff3ee321 | 23 | } |