WIZnet / Mbed 2 deprecated AnalogIn-HelloWorld_WIZwiki-W7500eco

first release

Dependencies:   mbed

Prerequisite

This Program is an example of how to get analog data with WIZwiki-W7500 board A0 Pin.

To implement this function, you need a Platform board only.

  • WIZwiki-W7500 from WIZnet (Platform board)

Hardware Configuration

WIZwiki-W7500ECO Pin map

http://wizwiki.net/wiki/lib/exe/fetch.php?media=products:wizwiki-w7500eco:wizwiki-w7500eco_detailpinout.png

Initialize an analog pin
Initialize an P30 pin of WIZwiki-W7100ECO platform as an analog pin.

Read analog data from analog pin
Connect an analog device, such as a vriable resistor, to a0 pin. And read analog data.

Software

ADC Pin initialization

main.cpp

AnalogIn   ain(P30);

Read analog data and print to serial port

main.cpp

printf("percentage: %3.3f%%\n", ain.read()*100.0f);

main.cpp@0:800b74bff4d2, 2017-04-03 (annotated)

Committer:
bangbh
Date:
Mon Apr 03 05:48:04 2017 +0000
Revision:
0:800b74bff4d2
first commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bangbh 0:800b74bff4d2 1 /* mbed Example Program
bangbh 0:800b74bff4d2 2 * Copyright (c) 2006-2014 ARM Limited
bangbh 0:800b74bff4d2 3 *
bangbh 0:800b74bff4d2 4 * Licensed under the Apache License, Version 2.0 (the "License");
bangbh 0:800b74bff4d2 5 * you may not use this file except in compliance with the License.
bangbh 0:800b74bff4d2 6 * You may obtain a copy of the License at
bangbh 0:800b74bff4d2 7 *
bangbh 0:800b74bff4d2 8 * http://www.apache.org/licenses/LICENSE-2.0
bangbh 0:800b74bff4d2 9 *
bangbh 0:800b74bff4d2 10 * Unless required by applicable law or agreed to in writing, software
bangbh 0:800b74bff4d2 11 * distributed under the License is distributed on an "AS IS" BASIS,
bangbh 0:800b74bff4d2 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bangbh 0:800b74bff4d2 13 * See the License for the specific language governing permissions and
bangbh 0:800b74bff4d2 14 * limitations under the License.
bangbh 0:800b74bff4d2 15 */
bangbh 0:800b74bff4d2 16
bangbh 0:800b74bff4d2 17 #include "mbed.h"
bangbh 0:800b74bff4d2 18
bangbh 0:800b74bff4d2 19 // Initialize a pins to perform analog input and digital output fucntions
bangbh 0:800b74bff4d2 20 AnalogIn ain(P30);
bangbh 0:800b74bff4d2 21 DigitalOut dout(LED1);
bangbh 0:800b74bff4d2 22
bangbh 0:800b74bff4d2 23 int main(void)
bangbh 0:800b74bff4d2 24 {
bangbh 0:800b74bff4d2 25 Serial pc(USBTX,USBRX);
bangbh 0:800b74bff4d2 26 pc.baud(115200);
bangbh 0:800b74bff4d2 27 while (1) {
bangbh 0:800b74bff4d2 28 // test the voltage on the initialized analog pin
bangbh 0:800b74bff4d2 29 // and if greater than 0.3 * VCC set the digital pin
bangbh 0:800b74bff4d2 30 // to a logic 1 otherwise a logic 0
bangbh 0:800b74bff4d2 31 if(ain > 0.3f) {
bangbh 0:800b74bff4d2 32 dout = 1;
bangbh 0:800b74bff4d2 33 } else {
bangbh 0:800b74bff4d2 34 dout = 0;
bangbh 0:800b74bff4d2 35 }
bangbh 0:800b74bff4d2 36
bangbh 0:800b74bff4d2 37 // print the percentage and 16 bit normalized values
bangbh 0:800b74bff4d2 38 printf("percentage: %3.3f%%\n", ain.read()*100.0f);
bangbh 0:800b74bff4d2 39 printf("normalized: 0x%04X \n", ain.read_u16());
bangbh 0:800b74bff4d2 40 wait(0.2f);
bangbh 0:800b74bff4d2 41 }
bangbh 0:800b74bff4d2 42 }