/* * Author: Jon Trulson * Copyright (c) 2016 Intel Corporation. * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #include #include #include #include #include bool shouldRun = true; // analog voltage, usually 3.3 or 5.0 #define GUVAS12D_AREF 5.0 void sig_handler(int signo) { if (signo == SIGINT) shouldRun = false; } int main() { signal(SIGINT, sig_handler); //! [Interesting] // This was tested with the Grove UV Sensor module. // It has a sensing range from between 240-370nm. It's strongest // response is around 320-360nm. // Instantiate a GUVAS12D on analog pin A0 guvas12d_context uv = guvas12d_init(0, GUVAS12D_AREF); if (!uv) { printf("guvas12d_init() failed\n"); return 1; } // The higher the voltage the more intense the UV radiation. while (shouldRun) { float volts = 0; float intensity = 0; if (guvas12d_get_volts(uv, &volts)) { printf("guvas12d_get_volts() failed\n"); return 1; } if (guvas12d_get_intensity(uv, &intensity)) { printf("guvas12d_get_intensity() failed\n"); return 1; } printf("Volts: %f, Intensity %f mW/m^2\n", volts, intensity); upm_delay(1); } printf("Exiting\n"); guvas12d_close(uv); //! [Interesting] return 0; }