Core Base Classes for the Light Endpoints
Dependents: mbed_mqtt_endpoint_ublox_ethernet mbed_mqtt_endpoint_ublox_cellular mbed_nsp_endpoint_ublox_cellular mbed_nsp_endpoint_ublox_ethernet ... more
APMDemoLight.cpp
- Committer:
- ansond
- Date:
- 2014-07-17
- Revision:
- 169:5ba15f5f7f87
- Parent:
- 168:1dc1f4e6a6cd
- Child:
- 170:9e72f2d0f2b2
File content as of revision 169:5ba15f5f7f87:
/* Copyright C2013 Doug Anson, MIT License * * 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 "APMDemoLight.h" // Configuration settings for the APM Demo Light... #ifdef APM_LIGHT_PERSONALITY PwmOut apm_light_led(LED1); // led 1 indicates dim value DigitalOut apm_light_led2(LED2); // led 2 indicates delay time for interrupts // pin for ZeroCross tail input - NOTE: An external 1K pullup required InterruptIn apm_light_zerocross(p27); // pin for PowerSSRtail output DigitalOut apm_light_SSR(p21); //use timer interrupts to control dimming Timeout apm_light_SSRtriggerOn; // AC power line frequency const float apm_light_powerlinefrequency = 60.000; // Our instance APMDemoLight *_apm_light_instance = NULL; // this interrupt routine is activated after a time delay set by dim value extern "C" void apm_light_triggerOn() { apm_light_SSR = 1; apm_light_led2 = 0; } // this interrupt routine is activated by every AC line zero crossing // it is needed to synchronize the SCR turnon time delay to the AC line extern "C" void apm_light_dimmer() { // turn off SSR at zero crossing apm_light_SSR = 0; // compute time delay using dim value and set timer interrupt // triggers SSR after a small post zero crossing time delay apm_light_SSRtriggerOn.attach(&apm_light_triggerOn,(1.001-_apm_light_instance->getDimValue())/(2*apm_light_powerlinefrequency)); apm_light_led2 = 1; } // default constructor APMDemoLight::APMDemoLight(ErrorHandler *error_handler) : BaseClass(error_handler,NULL) { this->m_led = &apm_light_led; this->m_dimming = false; sscanf(LIGHT_DEFAULT_STATE,"%d",&this->m_state); sscanf(LIGHT_DIM_STATE,"%f",&this->m_dim); // establish our instance _apm_light_instance = this; // ZeroCross configuration apm_light_zerocross.mode(PullNone); wait_ms(LIGHT_BLINK_WAIT_MS); apm_light_zerocross.rise(&apm_light_dimmer); } // destructor APMDemoLight::~APMDemoLight() { } // turn the light on void APMDemoLight::on() { this->m_state = 1; this->m_dimming = false; this->update(); } // turn the light off void APMDemoLight::off() { this->m_state = 0; this->m_dimming = false; this->update(); } // dim the light (dim is between 0 and 100) void APMDemoLight::dim(int dim) { this->m_dim = (float)(dim/100.0); this->m_dimming = true; this->update(); } // get the dimming value float APMDemoLight::getDimValue() { return this->m_dim; } // set the light state void APMDemoLight::update() { if (this->m_dimming) { // dim the light *(this->m_led) = this->m_dim; } else { // turn the light on or off if (this->m_state == 0) { // just turn the LED off *(this->m_led) = 0; } else { // turn the LED on - but re-adjust for the current dim setting: // - if the dimming is set to 0, then lets go ahead and make the light full bright... // - otherwise we wont see the transition change. if (this->m_dim == 0.0) { *(this->m_led) = 1; } else { *(this->m_led) = this->m_dim; } } } } #endif