first release
Dependencies: mbed
main.cpp
00001 /* mbed Example Program 00002 * Copyright (c) 2006-2014 ARM Limited 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 00017 #include "mbed.h" 00018 00019 // Initialize a pins to perform analog input and digital output fucntions 00020 AnalogIn ain(P30); 00021 DigitalOut dout(LED1); 00022 00023 int main(void) 00024 { 00025 Serial pc(USBTX,USBRX); 00026 pc.baud(115200); 00027 while (1) { 00028 // test the voltage on the initialized analog pin 00029 // and if greater than 0.3 * VCC set the digital pin 00030 // to a logic 1 otherwise a logic 0 00031 if(ain > 0.3f) { 00032 dout = 1; 00033 } else { 00034 dout = 0; 00035 } 00036 00037 // print the percentage and 16 bit normalized values 00038 printf("percentage: %3.3f%%\n", ain.read()*100.0f); 00039 printf("normalized: 0x%04X \n", ain.read_u16()); 00040 wait(0.2f); 00041 } 00042 }
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