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comparison service/arduinoNode/devices.py @ 991:c6989dcf1f4f

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temp sensor try to work with idle loop (but there are still stutters) Ignore-this: d3d33548db6ce6c329f8aef2cd83403a darcs-hash:20150708082102-312f9-ea553ff8ce011065b93ed3dae5dbc8fa057ca0d8
author drewp <drewp@bigasterisk.com>
date Wed, 08 Jul 2015 01:21:02 -0700
parents 11fff6301027
children 6c6897a139da
comparison
equal deleted inserted replaced
990:11fff6301027 991:c6989dcf1f4f
217 DeviceAddress tempSensorAddress; 217 DeviceAddress tempSensorAddress;
218 #define NUM_TEMPERATURE_RETRIES 2 218 #define NUM_TEMPERATURE_RETRIES 2
219 219
220 void initSensors() { 220 void initSensors() {
221 sensors.begin(); 221 sensors.begin();
222 sensors.setWaitForConversion(false);
222 sensors.getAddress(tempSensorAddress, 0); 223 sensors.getAddress(tempSensorAddress, 0);
223 sensors.setResolution(tempSensorAddress, 12); 224 sensors.setResolution(tempSensorAddress, 9); // down from 12 to avoid flicker
224 } 225 }
225 ''' % dict(pinNumber=self.pinNumber) 226 ''' % dict(pinNumber=self.pinNumber)
226 227
228 def generateSetupCode(self):
229 return 'initSensors();'
230
227 def generatePollCode(self): 231 def generatePollCode(self):
228 return r''' 232 return r'''
229 for (int i=0; i<NUM_TEMPERATURE_RETRIES; i++) { 233 for (int i=0; i<NUM_TEMPERATURE_RETRIES; i++) {
230 sensors.requestTemperatures(); 234 sensors.requestTemperatures();
235 // not waiting for conversion at all is fine- the temps will update soon
236 //unsigned long until = millis() + 750; while(millis() < until) {idle();}
231 float newTemp = sensors.getTempF(tempSensorAddress); 237 float newTemp = sensors.getTempF(tempSensorAddress);
238 idle();
232 if (i < NUM_TEMPERATURE_RETRIES-1 && 239 if (i < NUM_TEMPERATURE_RETRIES-1 &&
233 (newTemp < -100 || newTemp > 180)) { 240 (newTemp < -100 || newTemp > 180)) {
234 // too many errors that were fixed by restarting arduino. 241 // too many errors that were fixed by restarting arduino.
235 // trying repeating this much init 242 // trying repeating this much init
236 initSensors(); 243 initSensors();
237 continue; 244 continue;
238 } 245 }
239 Serial.print(newTemp); 246 Serial.print(newTemp);
247 idle();
240 Serial.print('\n'); 248 Serial.print('\n');
249 idle();
241 Serial.print((char)i); 250 Serial.print((char)i);
251 idle();
242 break; 252 break;
243 } 253 }
244 ''' 254 '''
245 255
246 def readFromPoll(self, read): 256 def readFromPoll(self, read):