/* * Author: Mihai Tudor Panu * Copyright (c) 2016 Intel Corporation. * * This program and the accompanying materials are made available under the * terms of the The MIT License which is available at * https://opensource.org/licenses/MIT. * * SPDX-License-Identifier: MIT */ /* This example demonstrates how to use one the ADS1015 ADC on the Grove Joule * Shield or the Sparkfun ADC Block for Edison with devices that output a small * differential voltage (e.g. geophones, piezoelectric bands or pads, * thermocouples). */ #include #include #include #include #include "ads1015.hpp" #include "ads1x15.hpp" #include "upm_utilities.h" using namespace std; using namespace upm; bool running = true; // Controls main read/write loop // Thread function void stop() { upm_delay(10); running = false; } int main() { //! [Interesting] long id = 0; // Sample number string fileName = "./ads1015.data"; // Output filename ofstream f; // Initialize and configure the ADS1015 ADS1015 ads1015(0, 0x48); // Put the ADC into differential mode for pins A0 and A1 ads1015.getSample(ADS1X15::DIFF_0_1); // Set the gain based on expected VIN range to -/+ 2.048 V // Can be adjusted based on application to as low as -/+ 0.256 V, see API // documentation for details ads1015.setGain(ADS1X15::GAIN_TWO); // Set the sample rate to 3300 samples per second (max) and turn on continuous // sampling ads1015.setSPS(ADS1015::SPS_3300); ads1015.setContinuous(true); // Enable exceptions from the output stream f.exceptions(ofstream::failbit | ofstream::badbit); // Open the file try { f.open(fileName); // Output formatting f.setf(ios_base::fixed); f.precision(7); // Start the thread that will stop logging after 10 seconds thread timer(stop); // Read sensor data and write it to the output file every ms while (running) { f << id++ << " " << ads1015.getLastSample() << endl; upm_delay_us(1000); } // Clean-up and exit timer.join(); f.close(); } catch (ios_base::failure& e) { cout << "Failed to write to file: " << e.what() << endl; return 1; } cout << "Wrote " << id << " samples to file: " << fileName << endl; //! [Interesting] return 0; }