![\"debit-apa-1\"](\"https:\/\/roboromania.ro\/wp-content\/uploads\/2020\/10\/Debit-apa-1.jpg\")
<\/a><\/p>\nUtilizat \u00een principal la instalatiile pentru testarea apei, sistemul de r\u0103cire\/inc\u0103lzire a apei<\/p>\n
Aplica\u021bie:
\n\u00eenc\u0103lzitoare de ap\u0103
\nma\u0219ini pentru imbuteliat
\ndistribuitor automat de ap\u0103
\ndispozitiv de m\u0103surare a debitului<\/p>\n
Amplitudine mare: \u2265 4,6V
\nAmplitudine redus\u0103: \u2264 0,5V
\nTestarea presiunii hidrostatice: \u2264 2,0 MPa
\nRezisten\u021ba izola\u021biei: \u2265 100M\u03a9
\nTemperatura de utilizare: \u2264 80 \u00b0 C
\nCea mai mic\u0103 tensiune nominal\u0103 de lucru: DC4,5 … 5V
\nCurent maxim de func\u021bionare: 15mA (DC 5V)
\nCapacitate de \u00eenc\u0103rcare: \u2264 10mA (DC 5V)
\nGama de umiditate de func\u021bionare: 35% ~ 90% RH (f\u0103r\u0103 \u00eenghe\u021b)
\nPresiune admisibil\u0103: presiune 2.0Mpa
\nTemperatura: -25 ~ +80 \u00b0 C
\nRacorduri externe: 1\/2 ”
\n2.5 „x 1,4″ x 1,4 ”<\/p>\n
5V VCC (red wire) Exemplu cod:<\/p>\n \/* Measure the liquid\/water flow rate using this code. *\/<\/p>\n byte statusLed = 13;<\/p>\n byte sensorInterrupt = 0; \/\/ 0 = digital pin 2 \/\/ The hall-effect flow sensor outputs approximately 4.5 pulses per second per volatile byte pulseCount;<\/p>\n float flowRate; unsigned long oldTime;<\/p>\n void setup() \/\/ Initialize a serial connection for reporting values to the host \/\/ Set up the status LED line as an output pinMode(sensorPin, INPUT); pulseCount = 0; \/\/ The Hall-effect sensor is connected to pin 2 which uses interrupt 0. \/** if((millis() – oldTime) > 1000) \/\/ Only process counters once per second \/\/ Because this loop may not complete in exactly 1 second intervals we calculate \/\/ Note the time this processing pass was executed. Note that because we’ve \/\/ Divide the flow rate in litres\/minute by 60 to determine how many litres have \/\/ Add the millilitres passed in this second to the cumulative total unsigned int frac;<\/p>\n \/\/ Print the flow rate for this second in litres \/ minute \/\/ Print the cumulative total of litres flowed since starting \/\/ Reset the pulse counter so we can start incrementing again \/\/ Enable the interrupt again now that we’ve finished sending output \/* <\/p>\n Arduino projects.<\/p>\n","protected":false},"excerpt":{"rendered":" Senzor umiditate sol (Soil Hygrometer Humidity) pentru proiectele Arduino.<\/p>\n","protected":false},"featured_media":8028,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[9],"product_tag":[282,7,195,196,281,193,41,40],"class_list":{"0":"post-8027","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-senzori","7":"product_tag-apa","8":"product_tag-arduino","9":"product_tag-detectare","10":"product_tag-meteo","11":"product_tag-nivel","12":"product_tag-ploaie","13":"product_tag-sensor","14":"product_tag-senzor","16":"first","17":"instock","18":"sale","19":"shipping-taxable","20":"purchasable","21":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/roboromania.ro\/index.php?rest_route=\/wp\/v2\/product\/8027","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/roboromania.ro\/index.php?rest_route=\/wp\/v2\/product"}],"about":[{"href":"https:\/\/roboromania.ro\/index.php?rest_route=\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/roboromania.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8027"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/roboromania.ro\/index.php?rest_route=\/wp\/v2\/media\/8028"}],"wp:attachment":[{"href":"https:\/\/roboromania.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8027"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/roboromania.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_brand&post=8027"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/roboromania.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=8027"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/roboromania.ro\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=8027"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}<\/a><\/a><\/p>\n
\nGND (black wire)
\nSignal\/pulse (usually yellow)<\/p>\n
\nLiquid flow rate sensor<\/p>\n
\nConnect Vcc and Gnd of sensor to arduino, and the
\nsignal line to arduino digital pin 2.<\/p>\n
\nbyte sensorPin = 2;<\/p>\n
\n\/\/ litre\/minute of flow.
\nfloat calibrationFactor = 4.5;<\/p>\n
\nunsigned int flowMilliLitres;
\nunsigned long totalMilliLitres;<\/p>\n
\n{<\/p>\n
\nSerial.begin(38400);<\/p>\n
\npinMode(statusLed, OUTPUT);
\ndigitalWrite(statusLed, HIGH); \/\/ We have an active-low LED attached<\/p>\n
\ndigitalWrite(sensorPin, HIGH);<\/p>\n
\nflowRate = 0.0;
\nflowMilliLitres = 0;
\ntotalMilliLitres = 0;
\noldTime = 0;<\/p>\n
\n\/\/ Configured to trigger on a FALLING state change (transition from HIGH
\n\/\/ state to LOW state)
\nattachInterrupt(sensorInterrupt, pulseCounter, FALLING);
\n}<\/p>\n
\n* Main program loop
\n*\/
\nvoid loop()
\n{<\/p>\n
\n{
\n\/\/ Disable the interrupt while calculating flow rate and sending the value to
\n\/\/ the host
\ndetachInterrupt(sensorInterrupt);<\/p>\n
\n\/\/ the number of milliseconds that have passed since the last execution and use
\n\/\/ that to scale the output. We also apply the calibrationFactor to scale the output
\n\/\/ based on the number of pulses per second per units of measure (litres\/minute in
\n\/\/ this case) coming from the sensor.
\nflowRate = ((1000.0 \/ (millis() – oldTime)) * pulseCount) \/ calibrationFactor;<\/p>\n
\n\/\/ disabled interrupts the millis() function won’t actually be incrementing right
\n\/\/ at this point, but it will still return the value it was set to just before
\n\/\/ interrupts went away.
\noldTime = millis();<\/p>\n
\n\/\/ passed through the sensor in this 1 second interval, then multiply by 1000 to
\n\/\/ convert to millilitres.
\nflowMilliLitres = (flowRate \/ 60) * 1000;<\/p>\n
\ntotalMilliLitres += flowMilliLitres;<\/p>\n
\nSerial.print(„Flow rate: „);
\nSerial.print(int(flowRate)); \/\/ Print the integer part of the variable
\nSerial.print(„.”); \/\/ Print the decimal point
\n\/\/ Determine the fractional part. The 10 multiplier gives us 1 decimal place.
\nfrac = (flowRate – int(flowRate)) * 10;
\nSerial.print(frac, DEC) ; \/\/ Print the fractional part of the variable
\nSerial.print(„L\/min”);
\n\/\/ Print the number of litres flowed in this second
\nSerial.print(” Current Liquid Flowing: „); \/\/ Output separator
\nSerial.print(flowMilliLitres);
\nSerial.print(„mL\/Sec”);<\/p>\n
\nSerial.print(” Output Liquid Quantity: „); \/\/ Output separator
\nSerial.print(totalMilliLitres);
\nSerial.println(„mL”);<\/p>\n
\npulseCount = 0;<\/p>\n
\nattachInterrupt(sensorInterrupt, pulseCounter, FALLING);
\n}
\n}<\/p>\n
\nInsterrupt Service Routine
\n*\/
\nvoid pulseCounter()
\n{
\n\/\/ Increment the pulse counter
\npulseCount++;
\n}<\/p>\n