- Mon Jun 30, 2008 3:10 pm
#51061
Hello all,
This project uses BasicStamp 2P to interface with a DS1307, SHT15, JP Module and 16x4 LCD display. Code used is standard PBasic 2.5, it should work on most BasicStamp chips.
The project is a data logger demonstration program. It can record temperature and humidity data to MMC/SD card with date and time. Press the temperature unit select button switch to select Celsius or Fahrenheit. The data can be processed to the virtual XY chart or Polar Chart through the website ( www.jianpingusa.com/jpchart ).
Components:
1) Basic Stamp 2P
Manufactory: www.parallax.com
Datasheet: http://www.parallax.com/tabid/440/Default.aspx
2) DS1307
Manufactory: www.maxim-ic.com ,
Datasheet: http://datasheets.maxim-ic.com/en/ds/DS1307.pdf
3) SHT15
Manufactory: www.sensirion.com
Datasheet: http://www.sensirion.com/en/pdf/product ... HT7x_E.pdf
4) JP Module
Manufactory: www.jianpingusa.com
Datasheet: http://www.jianpingusa.com/datasheet/JP ... uction.pdf
5) 16x4 LCD Display (CM1644 series)
Manufactory: http://www.femacorp.com/
Datasheet: http://www.femacorp.com/Products/LCD/Ch ... 0Index.htm
Data processed website:
www.jianpingusa.com/jpchart
Attached files: ( 5 files )
1) code
3) project photo
4) XY Chart
5) Polar Chart
6) Video Link: http://www.youtube.com/watch?v=CY6NPmKLrRc
Author of this project: OldSpring
Thanks to Sparkfun team and all forum users.
This project uses BasicStamp 2P to interface with a DS1307, SHT15, JP Module and 16x4 LCD display. Code used is standard PBasic 2.5, it should work on most BasicStamp chips.
The project is a data logger demonstration program. It can record temperature and humidity data to MMC/SD card with date and time. Press the temperature unit select button switch to select Celsius or Fahrenheit. The data can be processed to the virtual XY chart or Polar Chart through the website ( www.jianpingusa.com/jpchart ).
Components:
1) Basic Stamp 2P
Manufactory: www.parallax.com
Datasheet: http://www.parallax.com/tabid/440/Default.aspx
2) DS1307
Manufactory: www.maxim-ic.com ,
Datasheet: http://datasheets.maxim-ic.com/en/ds/DS1307.pdf
3) SHT15
Manufactory: www.sensirion.com
Datasheet: http://www.sensirion.com/en/pdf/product ... HT7x_E.pdf
4) JP Module
Manufactory: www.jianpingusa.com
Datasheet: http://www.jianpingusa.com/datasheet/JP ... uction.pdf
5) 16x4 LCD Display (CM1644 series)
Manufactory: http://www.femacorp.com/
Datasheet: http://www.femacorp.com/Products/LCD/Ch ... 0Index.htm
Data processed website:
www.jianpingusa.com/jpchart
Attached files: ( 5 files )
1) code
Code: Select all
2) schematic
'======================================================
' File...... Temperature + Humidity Data Logger Demo
' Purpose... SHT15 + DS1307 + JP Module + 16x4 LCD
' Author.... OldSpring
' Email..... OldSprings@yahoo.com
' Started...
' Updated... 18 June 2008
'
' {$STAMP BS2p}
' {$PBASIC 2.5}
'
'=======================================================
#SELECT $STAMP
#CASE BS2, BS2E, BS2PE
T2400 CON 396
T4800 CON 188
T9600 CON 84
T19K2 CON 32
#CASE BS2SX, BS2P
T2400 CON 1021
T4800 CON 500
T9600 CON 240
T19K2 CON 110
#CASE BS2PX
T2400 CON 1646
T4800 CON 813
T9600 CON 396
T19K2 CON 188
#ENDSELECT
'-------------------------------------------------------
' I/O Definitions
'-------------------------------------------------------
SDA CON 8 'Pin8 = SDA, Pin9 = SCL FOR DS1307
BtnWrk PIN 10 'Timer controller pin
ShtDat CON 15 'SHT Data Pin
ShtClk CON 14 'SHT Clock Pin
C_F PIN 0 'Select C or F button Pin
E CON 1 'LCD Enable Pin
SOUT PIN 13
StatePin PIN 12
ResetPin PIN 11
'-------------------------------------------------------
' Constants
'-------------------------------------------------------
ShtTemp CON %00011 ' read temperature
ShtHumi CON %00101 ' read humidity
ShtStatW CON %00110 ' status register write
ShtStatR CON %00111 ' status register read
ShtReset CON %11110 ' reset
Ack CON 0
NoAck CON 1
DS1307 CON $D0 ' DS1307 address
'-------------------------------------------------------
' Variables
'-------------------------------------------------------
BT VAR Bit
DS VAR Nib
SHT VAR Nib
Rec VAR Nib
sec VAR Byte
minute VAR Byte
hr VAR Byte
day VAR Byte
date VAR Byte
month VAR Byte
year VAR Byte
ioByte VAR Byte ' data input/output from SHT1x
ackBit VAR Bit ' ack/nak from/to SHT1x
T_Delay VAR Byte ' timeout delay timer
T_Out VAR Bit ' timeout status
soT VAR Word ' temp counts from SHT1x
tC VAR Word ' temp for C
tF VAR Word ' temp for F
CF VAR Bit
tC_tF VAR Bit
soRH VAR Word ' humidity counts from SHT1x
rhLin VAR Word ' humidity; linearized
rhTrue VAR Word ' humidity; temp compensated
status VAR Byte ' SHT1x status byte
'Baud CON T2400 ' 2400,8,N,1
Baud CON T19K2 ' 19200,8,N,1
'--------------------------------------------------------
' LCD command
'--------------------------------------------------------
LcdCls CON $01 ' clear the LCD
LcdHome CON $02 ' move cursor to home
LcdLine1 CON $80 ' Lcd address for line 1
LcdLine2 CON $C0 ' Lcd address for line 2
LcdLine3 CON $90 ' Lcd address for line 3
LcdLine4 CON $D0 ' Lcd address for line 4
Init_LCD:
PAUSE 1000 ' LCD self init
LCDCMD E, %00110000 ' wakeup
PAUSE 10
LCDCMD E, %00100000 ' set data for 4 bits
LCDCMD E, %00101000 ' set 2(4) line mode with 5x8 font
LCDCMD E, %00001100 ' turn cursor off
LCDCMD E, %00000110 ' auto increment cursor
'------------- First Screen ---------------
LCDCMD E, LcdCls
LCDOUT E, LcdLine1, [" Temperature "]
LCDOUT E, LcdLine2, [" and Humidity "]
LCDOUT E, LcdLine3, [" Data Logger "]
LCDOUT E, LcdLine4, ["Made by OldSprig"]
' ------------------------------------------------------------------------------
' Initialization
' ------------------------------------------------------------------------------
OUTPUT ResetPin
ResetPin = 0
PAUSE 1000
ResetPin = 1
PAUSE 1000
Initialize:
GOSUB SHT_Connection_Reset ' reset device connection
I2COUT SDA,DS1307,7,[$10] ' Enable OSC @ 1Hz
'---------------------------------------------------
' Set Date and Time to DS1307
'---------------------------------------------------
' I2COUT SDA,DS1307,6,[$08] ' Year 0 - 99
' I2COUT SDA,DS1307,5,[$06] ' Month 1 - 12
' I2COUT SDA,DS1307,4,[$24] ' Date 1 - 31
' I2COUT SDA,DS1307,3,[$02] ' Day 1 - 7
' I2COUT SDA,DS1307,2,[$12] ' Hours 0 - 23
' I2COUT SDA,DS1307,1,[$30] ' Minutes 0 - 59
' I2COUT SDA,DS1307,0,[$00] ' Seconds 0 - 59
Rec = 0
BT = 0
DS = 0
SHT = 0
CF = 0
'-----------------------------------------------------------
' Format MMC/SD Card with FAT16
'Warning: Format will erase ALL data on your MMC/SD card!!!!
'-----------------------------------------------------------
'Formatting:
' LCDCMD E, LcdCls
' LCDOUT E, LcdLine1, [" Formatting... "]
' SEROUT SOUT, Baud, ["MF!"] 'Format MMC/SD Card
' PAUSE 50
' SEROUT SOUT, Baud, ["OldSpring!!"] 'Volume label
' PAUSE 1000
'Waiting:
' IF StatePin = 1 THEN
' LCDOUT E, LcdLine1, [" Finished! "]
' ELSE
' PAUSE 1000
' GOTO Waiting
' ENDIF
Init_JP_Module:
OUTPUT ResetPin
ResetPin = 0
PAUSE 1000
ResetPin = 1
PAUSE 1000
SEROUT SOUT, Baud, ["MA!"] 'Open data file
PAUSE 50
SEROUT SOUT, Baud, ["TestFile.CSV!!"] 'File Name
PAUSE 1000
IF StatePin = 0 THEN 'If file not find, create a new file
ResetPin = 0 'Reset JP Module
PAUSE 500
ResetPin = 1
PAUSE 500
SEROUT SOUT, Baud, ["MC!"] 'Create a new file
PAUSE 50
SEROUT SOUT, Baud, ["TestFile.CSV!!"] 'File Name
PAUSE 1000
SEROUT SOUT, Baud, ["Date,Time,Temperature,Humidity", CR,"!!"] 'Data title
PAUSE 1000
GOSUB Init_JP_Module
ENDIF
LCDCMD E, LcdCls
LCDOUT E, LcdLine1, ["Date:"]
LCDOUT E, LcdLine2, ["Time:"]
LCDOUT E, LcdLine3, ["Temp:"]
LCDOUT E, LcdLine4, ["Humi:"]
GOSUB ShowDT
GOSUB ShowTH
'--------------------------------------------------------
' Main program
'--------------------------------------------------------
Main:
IF (C_F = 1) AND (tC_tF = 0) THEN
tC_tF = 1
ENDIF
IF (C_F = 0) AND (tC_tF = 1) THEN
IF CF = 0 THEN
CF = 1
ELSE
CF = 0
ENDIF
GOSUB ShowTH
tC_tF = 0
ENDIF
IF (BtnWrk = 0) AND (BT = 1) THEN
GOSUB ShowDT 'reflash time and date per second
IF SHT = 5 THEN GOSUB ShowTH 'reflash Temp and humi per 5 seconds
IF Rec = 10 THEN GOSUB DataRec 'Record Data per 10 seconds
BT = 0
DS = DS + 1
SHT = SHT + 1
Rec = Rec + 1
ENDIF
IF (BtnWrk = 1) AND (BT = 0) THEN
BT = 1
ENDIF
GOTO Main
END
' ----------------------------------------------------------
' Subroutines
'-----------------------------------------------------------
ShowDT:
' Get Time and Date from the DS1307
I2CIN SDA,DS1307,0,[sec,minute,hr,day,date,month,year]
LCDOUT E, LcdLine1 + 7, [HEX2 month, "/", HEX2 date, "/", HEX2 year]
LCDOUT E, LcdLine2 + 7, [HEX2 hr, ":", HEX2 minute, ":", HEX2 sec ]
DS = 0
RETURN
ShowTH:
GOSUB SHT_Measure_Temp
GOSUB SHT_Measure_Humi
IF CF = 1 THEN
LCDOUT E, LcdLine3 + 7, [DEC (tC / 10), ".", DEC2 tC, " ", 223, "C"]
ELSE
LCDOUT E, LcdLine3 + 7, [DEC (tF / 10), ".", DEC2 tF, " ", 223, "F"]
ENDIF
LCDOUT E, LcdLine4 + 7, [DEC (rhTrue / 10), ".", DEC2 rhTrue," %RH"]
SHT = 0
RETURN
DataRec:
IF StatePin = 1 THEN
SEROUT SOUT, Baud, [HEX2 month, "/", HEX2 date, "/", HEX2 year ,","]
SEROUT SOUT, Baud, [HEX2 hr, ":", HEX2 minute, ":", HEX2 sec ,","]
SEROUT SOUT, Baud, [DEC (tF / 10), ".", DEC2 tF ,","]
SEROUT SOUT, Baud, [DEC (rhTrue / 10), ".", DEC2 rhTrue,CR]
SEROUT 13, Baud, ["!!"] 'write data to SD/MMC Card
ELSE
LCDCMD E, LcdCls
LCDOUT E, LcdLine1, [" Check SD Card "] 'Please check mmc/sd card first
LCDOUT E, LcdLine2, [" please... "]
LCDOUT E, LcdLine3, [" Waiting for sys"] 'waiting for system reopen file if card ok
LCDOUT E, LcdLine4, [" reopen file...."]
GOSUB Init_JP_Module
ENDIF
Rec = 0
RETURN
SHT_Connection_Reset:
SHIFTOUT ShtDat, ShtClk, LSBFIRST, [$FFF\9]
RETURN
SHT_Start:
INPUT ShtDat ' generates SHT start sequence
LOW ShtClk ' _____ _____
HIGH ShtClk ' ShtDat |_______|
LOW ShtDat ' ___ ___
LOW ShtClk ' Clock ___| |___| |___
HIGH ShtClk
INPUT ShtDat
LOW ShtClk
RETURN
SHT_Measure_Temp:
GOSUB SHT_Start ' start device
ioByte = ShtTemp ' temperature command
GOSUB SHT_Write_Byte ' send command
GOSUB SHT_Wait
ackBit = Ack ' Ack = 1
GOSUB SHT_Read_Byte ' get MSB
soT.HIGHBYTE = ioByte
ackBit = NoAck ' NoAck = 0
GOSUB SHT_Read_Byte ' get LSB
soT.LOWBYTE = ioByte
tC = soT / 10 - 400 ' convert to tenths C
tF = soT ** 11796 - 400 ' convert to tenths F
RETURN
SHT_Measure_Humi:
GOSUB SHT_Start ' start device
ioByte = ShtHumi ' humidity command
GOSUB SHT_Write_Byte ' send command
GOSUB SHT_Wait
ackBit = Ack ' Ack = 1
GOSUB SHT_Read_Byte ' get MSB
soRH.HIGHBYTE = ioByte
ackBit = NoAck ' NoAck = 0
GOSUB SHT_Read_Byte ' get LSB
soRH.LOWBYTE = ioByte
rhLin = (soRH ** 26542)
rhLin = rhLin - ((soRH ** 3468) * (soRH ** 3468) + 50 / 100)
rhLin = rhLin - 40
rhTrue = ((tC / 10 - 25) * (soRH ** 524 + 1) + (rhLin * 10)) + 5 / 10
RETURN
SHT_Write_Status:
GOSUB SHT_Start ' start device
ioByte = ShtStatW ' reg command
GOSUB SHT_Write_Byte ' send command
ioByte = status
GOSUB SHT_Write_Byte
RETURN
SHT_Read_Status:
GOSUB SHT_Start
ioByte = ShtStatW ' reg command
GOSUB SHT_Read_Byte ' send command
ackBit = NoAck
GOSUB SHT_Read_Byte
RETURN
SHT_Write_Byte:
SHIFTOUT ShtDat, ShtClk, MSBFIRST, [ioByte] ' send data
SHIFTIN ShtDat, ShtClk, LSBPRE, [ackBit\1] ' get ack bit
RETURN
SHT_Read_Byte:
SHIFTIN ShtDat, ShtClk, MSBPRE, [ioByte] ' get data
SHIFTOUT ShtDat, ShtClk, LSBFIRST, [ackBit\1] ' send ack bit
INPUT ShtDat ' data pin input
RETURN
SHT_Wait:
INPUT ShtDat ' data pin input
FOR T_Delay = 1 TO 250
T_Out = INS.LOWBIT(ShtDat) ' Check bit
IF (T_Out = 0) THEN EXIT
PAUSE 5
NEXT
RETURN
SHT_Soft_Reset:
GOSUB SHT_Connection_Reset ' reset the connection
ioByte = ShtReset ' reset command
ackBit = NoAck ' NoAck = 0
GOSUB SHT_Write_Byte ' send it
PAUSE 20
RETURN
3) project photo
4) XY Chart
5) Polar Chart
6) Video Link: http://www.youtube.com/watch?v=CY6NPmKLrRc
Author of this project: OldSpring
Thanks to Sparkfun team and all forum users.