Difference between pages "One-Wire Temperature Sensor - DS18B20" and "Temperature & Humidity Sensor Pro"
(Difference between pages)
(Created page with " === Reference Information === <br /> * '''Info Web:''' http://seeedstudio.com/depot/one-wire-temperature-sensor-p-1235.html?cPath=25_27 * '''Techinical Spec:''' Temperature...") |
(Created page with " * '''Product Web:''' http://seeedstudio.com/depot/grove-temperaturehumidity-sensor-pro-p-838.html?cPath=25_27 * '''Wiki:''' http://seeedstudio.com/wiki/Grove_-_Temperature_...") |
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− | * ''' | + | * '''Product Web:''' http://seeedstudio.com/depot/grove-temperaturehumidity-sensor-pro-p-838.html?cPath=25_27 |
+ | |||
+ | * '''Wiki:''' http://seeedstudio.com/wiki/Grove_-_Temperature_and_Humidity_Sensor_Pro | ||
+ | |||
+ | * '''Code Source:''' http://seeedstudio.com/wiki/File:Humidity_Temperature_Sensor.zip | ||
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+ | * '''Technical Spec:''' Humidytly: 5% RH - 99% RH - Temperature -40°C - 80°C - Acuracy: 2% RH / 0.5°C | ||
* '''Connector Type:''' Base Shield V1.3 - Grove compatible - http://seeedstudio.com/depot/base-shield-v13-p-1378.html | * '''Connector Type:''' Base Shield V1.3 - Grove compatible - http://seeedstudio.com/depot/base-shield-v13-p-1378.html | ||
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---- | ---- | ||
+ | ===Temperature & Humidity Sensor Pro=== | ||
+ | <br /> | ||
− | + | [[File:Grove_Tem_Humid.jpg]] | |
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− | [[File: | ||
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<br /> | <br /> | ||
− | '''In order to run this code you should copy the following code into the area delimited by the | + | '''In order to run this code you should copy the following code into the area delimited by the MY_NBIOS CUSTOM CODE banners in the Hello_World_xxx.ino example.''' |
+ | |||
<pre> | <pre> | ||
− | + | void Nearbus::MyNbios_0( byte portId, UINT setValue, ULONG* pRetValue, byte vmcuMethod, PRT_CNTRL_STRCT* pPortControlStruct ) | |
− | + | { | |
− | + | UINT data[6]; | |
− | + | UINT _pin; | |
− | void Nearbus::MyNbios_0( byte portId, | + | UINT _count = 6; |
− | { | + | ULONG _lastreadtime = 0; |
− | + | boolean firstreading = true; | |
− | + | float h; | |
− | + | float t; | |
− | + | byte ret; | |
− | byte | + | UINT laststate = HIGH; |
− | + | UINT counter = 0; | |
− | + | UINT j = 0; | |
− | + | UINT i; | |
− | + | ULONG currenttime; | |
− | + | ||
− | + | //************************************ | |
− | + | // Reconfiguring Ports as I/O | |
− | + | //************************************ | |
− | + | if( pPortControlStruct->portMode != MYDRIVER_MODE ) | |
− | if ( | + | { |
− | + | PortModeConfig( portId, MYDRIVER_MODE ); | |
− | |||
} | } | ||
+ | |||
+ | //************************************ | ||
+ | // Custom Function | ||
+ | //************************************ | ||
+ | _pin = pPortControlStruct->pinId; | ||
+ | |||
+ | // pull the pin high and wait 250 milliseconds | ||
+ | digitalWrite(_pin, HIGH); | ||
+ | delay(250); | ||
− | + | currenttime = millis(); | |
− | + | if (currenttime < _lastreadtime) { | |
− | + | // ie there was a rollover | |
− | + | _lastreadtime = 0; | |
+ | } | ||
+ | if (!firstreading && ((currenttime - _lastreadtime) < 2000)) { | ||
+ | ret = 0; // return last correct measurement | ||
+ | //delay(2000 - (currenttime - _lastreadtime)); | ||
+ | } | ||
+ | else { | ||
+ | firstreading = false; | ||
+ | _lastreadtime = millis(); | ||
+ | |||
+ | data[0] = data[1] = data[2] = data[3] = data[4] = 0; | ||
+ | |||
+ | // now pull it low for ~20 milliseconds | ||
+ | pinMode(_pin, OUTPUT); | ||
+ | digitalWrite(_pin, LOW); | ||
+ | delay(20); | ||
+ | cli(); | ||
+ | digitalWrite(_pin, HIGH); | ||
+ | delayMicroseconds(40); | ||
+ | pinMode(_pin, INPUT); | ||
+ | |||
+ | // read in timings | ||
+ | for ( i=0; i< 85; i++) { // #define MAXTIMINGS = 85 // how many timing transitions we need to keep track of. 2 * number bits + extra | ||
+ | counter = 0; | ||
+ | while (digitalRead(_pin) == laststate) { | ||
+ | counter++; | ||
+ | delayMicroseconds(1); | ||
+ | if (counter == 255) { | ||
+ | break; | ||
+ | } | ||
+ | } | ||
+ | laststate = digitalRead(_pin); | ||
+ | |||
+ | if (counter == 255) break; | ||
+ | |||
+ | // ignore first 3 transitions | ||
+ | if ((i >= 4) && (i%2 == 0)) { | ||
+ | // shove each bit into the storage bytes | ||
+ | data[j/8] <<= 1; | ||
+ | if (counter > _count) | ||
+ | data[j/8] |= 1; | ||
+ | j++; | ||
+ | } | ||
+ | } | ||
+ | sei(); | ||
+ | |||
+ | // check we read 40 bits and that the checksum matches | ||
+ | if ((j >= 40) && | ||
+ | (data[4] == ((data[0] + data[1] + data[2] + data[3]) & 0xFF)) ) { | ||
+ | ret = 0; | ||
+ | } | ||
+ | else{ | ||
+ | ret = 1; | ||
+ | } | ||
+ | } | ||
+ | if (ret == 0) { | ||
+ | h = data[0]; | ||
+ | h *= 256; | ||
+ | h += data[1]; | ||
+ | h *= 10; | ||
− | + | t = data[2] & 0x7F; | |
− | + | t *= 256; | |
− | + | t += data[3]; | |
− | + | t *= 10; | |
− | + | if (data[2] & 0x80) | |
− | + | t *= -1; | |
− | + | } | |
− | + | else { | |
− | + | t = 0; | |
− | + | h = 0; | |
− | + | } | |
− | + | // delay(250); | |
− | + | ||
− | + | //************************************ | |
− | + | // Updating register | |
− | + | //************************************ | |
− | + | * pRetValue = (ULONG) t; | |
− | + | } | |
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</pre> | </pre> |
Latest revision as of 21:17, 29 March 2018
- Product Web: http://seeedstudio.com/depot/grove-temperaturehumidity-sensor-pro-p-838.html?cPath=25_27
- Technical Spec: Humidytly: 5% RH - 99% RH - Temperature -40°C - 80°C - Acuracy: 2% RH / 0.5°C
- Connector Type: Base Shield V1.3 - Grove compatible - http://seeedstudio.com/depot/base-shield-v13-p-1378.html
Temperature & Humidity Sensor Pro
MyNbios Code - Example
In order to run this code you should copy the following code into the area delimited by the MY_NBIOS CUSTOM CODE banners in the Hello_World_xxx.ino example.
void Nearbus::MyNbios_0( byte portId, UINT setValue, ULONG* pRetValue, byte vmcuMethod, PRT_CNTRL_STRCT* pPortControlStruct ) { UINT data[6]; UINT _pin; UINT _count = 6; ULONG _lastreadtime = 0; boolean firstreading = true; float h; float t; byte ret; UINT laststate = HIGH; UINT counter = 0; UINT j = 0; UINT i; ULONG currenttime; //************************************ // Reconfiguring Ports as I/O //************************************ if( pPortControlStruct->portMode != MYDRIVER_MODE ) { PortModeConfig( portId, MYDRIVER_MODE ); } //************************************ // Custom Function //************************************ _pin = pPortControlStruct->pinId; // pull the pin high and wait 250 milliseconds digitalWrite(_pin, HIGH); delay(250); currenttime = millis(); if (currenttime < _lastreadtime) { // ie there was a rollover _lastreadtime = 0; } if (!firstreading && ((currenttime - _lastreadtime) < 2000)) { ret = 0; // return last correct measurement //delay(2000 - (currenttime - _lastreadtime)); } else { firstreading = false; _lastreadtime = millis(); data[0] = data[1] = data[2] = data[3] = data[4] = 0; // now pull it low for ~20 milliseconds pinMode(_pin, OUTPUT); digitalWrite(_pin, LOW); delay(20); cli(); digitalWrite(_pin, HIGH); delayMicroseconds(40); pinMode(_pin, INPUT); // read in timings for ( i=0; i< 85; i++) { // #define MAXTIMINGS = 85 // how many timing transitions we need to keep track of. 2 * number bits + extra counter = 0; while (digitalRead(_pin) == laststate) { counter++; delayMicroseconds(1); if (counter == 255) { break; } } laststate = digitalRead(_pin); if (counter == 255) break; // ignore first 3 transitions if ((i >= 4) && (i%2 == 0)) { // shove each bit into the storage bytes data[j/8] <<= 1; if (counter > _count) data[j/8] |= 1; j++; } } sei(); // check we read 40 bits and that the checksum matches if ((j >= 40) && (data[4] == ((data[0] + data[1] + data[2] + data[3]) & 0xFF)) ) { ret = 0; } else{ ret = 1; } } if (ret == 0) { h = data[0]; h *= 256; h += data[1]; h *= 10; t = data[2] & 0x7F; t *= 256; t += data[3]; t *= 10; if (data[2] & 0x80) t *= -1; } else { t = 0; h = 0; } // delay(250); //************************************ // Updating register //************************************ * pRetValue = (ULONG) t; }