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update to DS18B20 sensor #12

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update to DS18B20 sensor #12

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537f488
Update temp18b20.pde
fcwpinguino Jul 5, 2015
ae53956
Update temp18b20.pde
fcwpinguino Jul 5, 2015
cea6461
Update temp18b20.pde
fcwpinguino Oct 31, 2015
0803cdc
Update temp18b20.pde
fcwpinguino Oct 31, 2015
b51d331
Update temp18b20.pde
fcwpinguino Oct 31, 2015
b8edc87
Update IRremote.c
fcwpinguino Jan 13, 2016
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42 changes: 29 additions & 13 deletions examples/06.Sensors/DS18B20/temp18b20.pde
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Original file line number Diff line number Diff line change
@@ -1,37 +1,53 @@
/* -----------------------------------------------------------------------
/* -----------------------------------------------------------------------
Pinguino example to read ds18b20 1wire temperature sensor
Result is sent on usb-serial bus and can be read with index.php
author Régis Blanchot
first release 14/09/2010
last update 10/06/2011
IDE Pinguino > b9.5
-----------------------------------------------------------------------
-----------------------------------------------------------------------
DS18B20 wiring
-----------------------------------------------------------------------
-----------------------------------------------------------------------
pin 1: GND
pin 2: DQ (Data in/out) must be connected to the PIC
pin 3: VDD (+5V)
NB : 1-wire bus (DQ line) must have 4K7 pull-up resistor (connected to +5V)
-----------------------------------------------------------------------
-----------------------------------------------------------------------
Data's are sent to /dev/ttyACM0
Make sure you have persmission on it : sudo chmod 777 /dev/ttyACM0
Maybe you will have to add your user name to the dialup group
----------------------------------------------------------------------*/

#define ONEWIREBUS 14 // DQ line
#define ONEWIREBUS 2
#define RES_12BIT

char temp_sign = 0;
u16 ifar;
u8 ffar;

void setup()
{
}

}
void loop()
{
TEMPERATURE t;

if (DS18B20.read(ONEWIREBUS, SKIPROM, RES12BIT, &t))
{
if (t.sign) CDC.printf("-");
CDC.printf("%d.%d°C \r", t.integer, t.fraction);
TEMPERATURE t;
if (DS18B20.read(ONEWIREBUS, SKIPROM, &t))
{

temp_sign = t.sign ? '-' : '+';

ifar = t.integer * 100;
ifar += t.fraction;
ifar = (((long)ifar * 9) / 5) + 3200;
//ifar = ((ifar * 1.8) + 3200);
ffar = ifar % 100;
ifar /= 100;

CDC.printf("Temp: %c%2d.%02d C || %c%3d.%02d F\r\n", temp_sign, t.integer, t.fraction, temp_sign, ifar,ffar);

}
delay(1000);
}
}


6 changes: 3 additions & 3 deletions p8/include/pinguino/libraries/IRremote.c
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Original file line number Diff line number Diff line change
Expand Up @@ -301,7 +301,7 @@ void IRsend_mark(u16 time)

// while () {} needs much less time than for (;;) {}
// for loop without NOPs : ~ 1,3 ms (889 iterations on 18f26j50)
// while loop without NOPs: ~ 712 �s (889 Iterations on 18f26j50)
// while loop without NOPs: ~ 712 µs (889 Iterations on 18f26j50)
while (i) {
_1us_
i--;
Expand Down Expand Up @@ -364,9 +364,9 @@ void IRrecv_enableIRIn(u8 recvpin)

// Timer3 is on 16 bits, prescaler 1, based on external crystal Frequency
#if defined(__18f25k50) || defined(__18f45k50)
T3CON = T3_OFF | T3_16BIT | T3_SYNC_EXT_OFF | T3_SOSC_OFF | T3_PS_1_1 | T3_RUN_FROM_OSC;
T3CON = T3_OFF | T3_16BIT | T3_SYNC_EXT_OFF | T3_SOSC_OFF | T3_PS_1_1 | T3_SOURCE_FOSC;
#else
T3CON = T3_OFF | T3_16BIT | T3_SYNC_EXT_OFF | T3_OSC_OFF | T3_PS_1_1 | T3_RUN_FROM_OSC;
T3CON = T3_OFF | T3_16BIT | T3_SYNC_EXT_OFF | T3_OSC_OFF | T3_PS_1_1 | T3_SOURCE_FOSC;
#endif

// nb cycles for 50us
Expand Down