ESP8266 Treppenlichtsteuerung mit OTA zum Firmware Upload
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treppe.cpp 6.7KB

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  1. #include "treppe.h"
  2. uint8_t Treppe::softstart_led(uint8_t led, uint16_t startval, uint16_t stopval){
  3. /*
  4. softstart task
  5. - get's called at regular intervals (1ms at the moment)
  6. - dimms single led (0 - 15, PCA9685 outputs) with linear intervals vom startval to stopval
  7. - calculates pwm steps depending on startval, stopval and timeinterval
  8. - -> results in constanst speed
  9. - returns 1 if led dimming is running
  10. - returns 0 if led dimming is finished
  11. */
  12. static uint8_t lastled = 255;
  13. static float current_pwm = 0;
  14. static float stepsize = 1.0;
  15. if(led != lastled){
  16. pwmController.setChannelPWM(led, (uint16_t)startval);
  17. lastled = led;
  18. current_pwm = startval;
  19. stepsize = INT_TIME*abs(stopval - startval)/(float)time_per_stair; // only valid at 1ms function call interval
  20. return 1;
  21. }
  22. if(startval > stopval){
  23. current_pwm -= stepsize;
  24. }
  25. else {
  26. current_pwm += stepsize;
  27. }
  28. // Serial.println((uint16_t)current_pwm);
  29. pwmController.setChannelPWM(led, (uint16_t)current_pwm);
  30. if(current_pwm > stopval - stepsize && current_pwm < stopval + stepsize){
  31. if(stopval == 0) pwmController.setChannelPWM(led, 0);
  32. return 0;
  33. }
  34. return 1;
  35. }
  36. void Treppe::ledsequence(){
  37. static int8_t led = 0;
  38. static uint16_t brightness = 0;
  39. static uint16_t lastbrightness = 0;
  40. static uint16_t status = 0;
  41. uint16_t status_build = 0;
  42. status_build |= direction << 8;
  43. status_build |= state;
  44. if(status_build != status){ // check if any parameter changed
  45. finish = 0; // set state unfinished -> start action
  46. if(direction) led = 0; // reset led counter depending of direction
  47. else led = stairs-1;
  48. if(state){
  49. brightness = active_brightness; // set brightness value depending of on/off
  50. lastbrightness = idle_brightness;
  51. }
  52. else{
  53. brightness = idle_brightness;
  54. lastbrightness = active_brightness;
  55. }
  56. status = status_build; // set parameter memory
  57. Serial.printf("----Status Changed! onoff: %d, dir: %d\n", state, direction);
  58. }
  59. if(!finish){ // finish == 0 -> action pending
  60. if(!softstart_led(led,lastbrightness, brightness)){
  61. Serial.printf("one LED finished: led: %d, last: %d, curr %d\n",
  62. led, lastbrightness, brightness);
  63. if(direction){
  64. led++;
  65. if(led >= stairs)
  66. finish = 1;
  67. }
  68. else{
  69. led--;
  70. if(led < 0)
  71. finish = 1;
  72. }
  73. }
  74. }
  75. }
  76. void Treppe::rampe()
  77. {
  78. if(state) {
  79. finish = 0;
  80. state = 0; // set parameter memory
  81. }
  82. if(!finish) {
  83. if(direction) { // aufwärts
  84. if(tick >= ticks_treppe-1) { // ziel erreicht
  85. Serial.println("[Treppe] oberster tick !");
  86. finish = 1;
  87. return;
  88. }
  89. tick++; // eins hoch
  90. }
  91. else { // abwärts
  92. if(tick <= 0) { // ziel erreicht
  93. Serial.println("[Treppe] unterster tick !");
  94. finish = 1;
  95. return;
  96. }
  97. tick--; // eins runter
  98. }
  99. stufe = tick / ticks_pro_stufe;
  100. float new_pwm = 0.0;
  101. if(an_aus) {
  102. new_pwm = differenz_pwm_pro_tick * (tick - ticks_pro_stufe*stufe);
  103. new_pwm += idle_brightness;
  104. if(direction) new_pwm += differenz_pwm_pro_tick;
  105. }
  106. else {
  107. new_pwm = active_brightness - differenz_pwm_pro_tick * (tick - ticks_pro_stufe*stufe);
  108. new_pwm += idle_brightness;
  109. if(direction) new_pwm -= differenz_pwm_pro_tick;
  110. }
  111. pwmController.setChannelPWM(stufe, (uint16_t) new_pwm);
  112. Serial.printf("tick %04u, led %02d:%02u, pwm %4.1f\n",
  113. tick,
  114. stufe,
  115. (tick - ticks_pro_stufe*stufe),
  116. new_pwm
  117. );
  118. }
  119. }
  120. void Treppe::setup(){
  121. Serial.printf("differenz_pwm_pro_tick %f\n", differenz_pwm_pro_tick);
  122. pwmController.resetDevices();
  123. // Deactive PCA9685 Phase Balancer due to LED Flickering
  124. // https://github.com/NachtRaveVL/PCA9685-Arduino/issues/15
  125. // see also lib/PCA9685-Arduin/PCA9685.h:204
  126. pwmController.init(PCA9685_PhaseBalancer_None);
  127. pwmController.setPWMFrequency(200);
  128. pwmController.setAllChannelsPWM(idle_brightness);
  129. pinMode(SENSOR1, INPUT);
  130. pinMode(SENSOR2, INPUT);
  131. pinMode(OE, OUTPUT);
  132. digitalWrite(OE, 0);
  133. Serial.println("Hello from Treppe");
  134. Serial.print("Treppe: initial parameters: stairs=");
  135. Serial.println(stairs);
  136. }
  137. void Treppe::task(){
  138. if(finish){
  139. direction = switch_direction;
  140. state = switch_state;
  141. }
  142. static uint8_t last_sensor_state[2] = {0,0};
  143. uint8_t current_sensor_state[2] = {0,0};
  144. current_sensor_state[0] = digitalRead(SENSOR1);
  145. current_sensor_state[1] = digitalRead(SENSOR2);
  146. if(current_sensor_state[0] && !last_sensor_state[0] && state == 0){
  147. setTick(0);
  148. setAnAus(1);
  149. setDirection(1);
  150. setState(1);
  151. }
  152. if(current_sensor_state[1] && !last_sensor_state[1] && state == 0){
  153. setTick(0);
  154. setAnAus(0);
  155. setDirection(0);
  156. setState(1);
  157. }
  158. // first switch - off approach, use timer later
  159. if(!current_sensor_state[0] && last_sensor_state[0] && state == 1){
  160. setTick(ticks_treppe);
  161. setAnAus(1);
  162. setDirection(1);
  163. setState(0);
  164. }
  165. if(!current_sensor_state[1] && last_sensor_state[1] && state == 1){
  166. setTick(ticks_treppe);
  167. setAnAus(1);
  168. setDirection(0);
  169. setState(0);
  170. }
  171. last_sensor_state[0] = current_sensor_state[0];
  172. last_sensor_state[1] = current_sensor_state[1];
  173. ledsequence();
  174. }
  175. uint16_t Treppe::setIdle(uint16_t _idle_brightness){
  176. idle_brightness = _idle_brightness;
  177. Serial.println("Treppe: idle brightness changed!");
  178. return idle_brightness;
  179. }
  180. uint16_t Treppe::setActive(uint16_t _active_brightness){
  181. active_brightness = _active_brightness;
  182. Serial.println("Treppe: active brightness changed!");
  183. return active_brightness;
  184. }
  185. uint16_t Treppe::setTime(uint16_t _time_per_stair){
  186. time_per_stair = _time_per_stair;
  187. Serial.println("Treppe: time changed!");
  188. return time_per_stair;
  189. }
  190. void Treppe::setDirection(uint8_t _direction){
  191. switch_direction = _direction;
  192. Serial.printf("Treppe: switch_direction=%d!\n", switch_direction);
  193. if(finish) Serial.println("apply direction request immediately");
  194. else Serial.println("currently active, dir change afterwards");
  195. // to do: implement state command variable to determine dimm-state
  196. }
  197. void Treppe::setState(uint8_t _state){
  198. if(state == _state) return;
  199. else {
  200. switch_state = _state;
  201. Serial.printf("Treppe: switch_state=%d!\n", switch_state);
  202. if(finish) Serial.println("apply state request immediately");
  203. else Serial.println("currently active, state changes after activity");
  204. }
  205. }