Fördelen med den här är lika som med m.nu´s temperatur reporter att du slipper ha en dator igång.
Ett plus är också att den kör wifi (enbart) så du slipper dra kabel. Ström måste den förstås ha.
Med koden nedan så går det bara skicka värdet från en sensor men den stödjer ett flertal sensorer.
Den klarar inte Parasite power.
Agent
Kod: Markera allt
device.on("senddata", function(data) {
// Set URL to your web service, http://www.temperatur.nu
local url = "http://www.temperatur.nu/rapportera.php?hash=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx&t="; //din hash från temperatur.nu
// Set Content-Type header to json
local headers = { "Content-Type": "application/x-www-form-urlencoded" };
local url = (url + data);
// encode data and log
local body = http.jsonencode(data);
server.log(body);
// send data to your web service
http.post (url, headers, body).sendsync();
});Kod: Markera allt
// oneWire Test program
// imp.configure("oneWire", [], []);
function owReset()
{
// configure UART for OneWire RESET timing
hardware.uart57.configure(9600, 8, PARITY_NONE, 1, NO_CTSRTS);
hardware.uart57.write(0xF0);
if ( hardware.uart57.read() == 0xF0 )
{
server.log("owDevice not present");
return 0;
} else {
// Switch UART to OneWire data speed timing
hardware.uart57.configure(115200, 8, PARITY_NONE, 1, NO_CTSRTS);
return 1;
}
}
function owWrite(byte)
{
for (local b=0; b<8; b++, byte=byte>>1) owBit(byte&0x01);
}
function owRead()
{
local byte = 0;
for (local b=0; b<8; b++) byte=(byte>>1)+0x80*owBit(1);
return byte;
}
// Write/Read bit
function owBit(bit)
{
bit=bit?0xFF:0x00;
hardware.uart57.write(bit);
return hardware.uart57.read()==0xFF?1:0;
}
function owSearch(next)
{
local Y = 0; // last found fork point
// Reset the bus and exit if no device found
if(owReset())
{
// OW_SEARCH_ROM readies all 1-Wire devices to begin the search and
// simultaneously sending the first least significant bit on the next read
owWrite(0xF0);
// Reading 64 bits romcode LSB: family code (8 bits), serialnummber (48 bits), MSB: CRC (8 bits)
for (local i=64; i>0; i--) {
local byte = (i-1)/8;
local b = owBit(1); // read bit from bus
if(owBit(1)) // read inverse bit
{
if(b) { Y=0; break } // read 1+1, bus error, no response
} else if(!b) { // read 0+0, found 2 devices with opposite bits
if( next > i || ( next != i && (id[byte] & 1) ) ) // or take the same path as in the previous ID
{
b = 1; // take the '1' direction on this point
Y = i; // store last found fork point
}
}
// select only devices on the bus with the same bit valvue, other devices go offline and no longer participate in the search until next search
owBit(b);
// shift out the previous path bits, add on the msb side the new choosen path bits
id[byte] = (id[byte] >> 1) + 0x80 * b;
}
}
// return the last fork point for next search
return Y;
}
// Wake up every 30 seconds and write to the server
function awake()
{
id <- [0,0,0,0,0,0,0,0]; // OW device ID array
next <- 65;
local tempL = 0;
local tempH = 0;
local temp = 0;
// agent.send("temp", 0);
imp.wakeup(60.0, awake); // sekunder mellan läsningar
server.log("Trigger all devices to do temperature conversion");
owReset();
owWrite(0xCC); // SKIP RO to select all devices on the bus
owWrite(0x44); // CONVERT_T DS18B20 start conversion on all devices
imp.sleep(0.75); // wait 750 msec for temperature conversion to finish
local dev = 0;
while(next)
{
dev++;
next = owSearch(next);
if (id[7] == 0x28)
{
owReset();
// MATCH ROM to select device for reading temperature
owWrite(0x55);
for (local i=7; i>=0; i--) owWrite(id[i]);
// READ_SCRATCHPAD DS18B20
owWrite(0xBE);
tempL = owRead();
tempH = owRead()*256;
owReset(); // stop reading the rest of the scratchpad
local tempC = tempH & 0x8000; // test most significant bit. Den här + 2 rader till för att fungera i minusgrader.
if (tempC) {tempH = (tempH ^ 0xffff) + 1;} // negative, 2's compliment
if (tempC) {tempH *= -1;} // .... minusgrader
temp = (tempL + tempH)/16.0; // calculate temperature from LSB and MSB
server.log(format("#%02d: Family: %02x (DS18B20), Serial: %02x%02x%02x%02x%02x%02x, CRC: %02x, Temp: %3.2f", dev, id[7],id[1],id[2],id[3],id[4],id[5],id[6],id[0],temp));
}
if (id[7] == 0x12)
{
owReset();
owWrite(0x55); // MATCH ROM to select device for reading temperature
for (local i=7; i>=0; i--) owWrite(id[i]);
// CHANNEL_ACCESS followed by 2 channel control bytes
owWrite(0xF5);
// first channel control byte: no crc, set CHS0 = select PIO-A only, b6=IM=0=writing-reading
owWrite(4); // 00000100
// write dummy channel control byte
owWrite(0xFF);
// read channel info byte
local pioA = owRead() & 5; // PIO-A bits 00000101
owBit(!pioA); // toggle output PIO-A
server.log(format("#%02d: Family: %02x (DS-2406), Serial: %02x%02x%02x%02x%02x%02x, CRC: %02x, pioA: %02x", dev, id[7],id[1],id[2],id[3],id[4],id[5],id[6],id[0],pioA));
}
}
local data = (temp);
agent.send("senddata" data );
}
// Start the loop
imp.wakeup(2.0, awake);