Applications Notes
- Interfacing with a MAX6674 / MAX6675 K-Thermocouple to Digital Converter.
- Interfacing with a Dallas DS2423 Dual 32-bit Counter
- Use of CRMagnetics Transformers to Detect AC Current
- Interfacing with a Microchip MCP23016 16-bit IO Expander
- Interfacing with a Microchip TC3400 16-bit A/D
- Interfacing with a Sensirion SHT Relative Humidity and Temperature Sensor
- Interfacing with a Microchip MCP3208 Eight 12-bit A/D (SPI) (BX35 and BX24).
- Interfacing with a Microchip MCP42010 Dual Digital Potentiometer (SPI) (BX35 and BX24).
provides software packages which permit plotting and logging of data. Although these were developed for the Basic Stamp, the packages may be used with any processor capable of transmitting serial data. Quite impressive.
Sample Plot of Temperature using an NTC Thermistor
Use of a BX24 as a Dallas DS1821 Thermostat Programmer.
Sample Routines for the BX24
- LED Flash Routines
- Examples of the FreqOut Command.
- Control of a UniPolar Stepping Motor
- UniPolar Stepping Motor - Part II
- Use of FirstTime and Persistent Variables.
- Use of the Watch Dog Timer.
- Serial Port Routines for the BX24. By Nick Taylor. Thanks!
- Additional Serial Routines for
displaying in binary, hexadecimal, fixed decimal and fixed single.
- Interfacing with the MAX518 Dual D/A (I2C)
- Interfacing with a Dallas DS1307 RTC (I2C)
- Interfacing with a Dallas DS1050 5-bit Pulse Width
Modulator (I2C)
- Informal Notes on the SPICommand
- Interfacing with an External SPI EEPROM
- Interfacing with a MAX7219 Eight Digit Display Driver.
- Interfacing with a MAX7219 using the BX24's SPI Port
- Controlling Multiple Devices using the SPI
Port
- Interfacing with a TLC2543 11-Ch, 12-bit A/D
(SPI). Added Sept 14, '00.
- Interfacing with an LTC1298 Dual 12-bit
A/D. Includes measuring barometric pressure using an MPX4115 and
temperature using a negative temperature (NTC) thermistor.
- BX24 - Interfacing with a 4.0 Megabyte EEPROM (SPI), by Lisa Mickens.
Note that the following Dallas 1-W Routines require the BX-24, Version 2.01 (Yellow Dot).
- Interfacing with a Dallas 1-W DS2401 Silicon Serial Number
- Interfacing with a Dallas 1-W DS1820 Digital Thermometer
- Periodic Temperature Measurements using the DS1820
- A 7000 Point Temperature Data Logger using a
DS1820
BX24 - Interfacing with a Dallas DS2450 Quad A/D (1-Wire).
-
Interface with Dallas DS2435 Temperature / Histogram -
Part 1.
- Interface with Dallas DS2435 Temperature / Histogram - Part 2.
- Measuring Voltage, Temperature and Relative Humidity using a DS2438 Battery Monitor. (Nov 22, '01 - Note that Dallas no longer offers the DSHS01K Humidity Kit. The following discussion illustrates a far simpler approach).
- Measuring Relative Humidity using a Honeywell HIH-3605 RH Sensor
- Dallas 1-W Device Codes
- BX24 Control using a Sony TV Infrared Remote Control.
- Interface with Dallas DS2435 Temperature / Histogram - Part 2.
Sample Routines for the BasicX-01. Note that most of these routines may be readily adapted to the BX-24.
- Poke_1.BAS. Use of RAMpoke, Sleep. Flashes LED.
- In_1.BAS. Use of "if - else", "for-next", PutPin, GetPin and serial output. Flashes LED in response to an input.
- IO_Byte1.Bas. Use of Registers in Byte IO Operations.
- Button_1.Bas. Use of a pushbutton to
change a parameter.
- Split_Int.BAS. Passing by reference, use
of MemAddress in conjunction with RAMpeek. Splits integer in high and low
bytes.
- Motor_1.BAS. Use of DACPin Command to Vary the Speed of a DC Motor.
- Motor_2.BAS. Varies speed of a DC motor
using a Potentiometer.
- Stepper_1.BAS. Control of a Unipolar
Stepper. Illustrates passing an array.
- S5804.Bas. Control of a Stepper Using an
Allegro UCN5804B Translator / Driver.
- Shift_Out_1.Bas and Shift_Out_2.Bas.
Interfacing with a single or cascaded 74X595 shift register - latch.
- EEPROM_1.BAS. Writing to and reading from EEPROM using PutEEPROM and GetEEPROM.
- EEPROM_2.BAS. Writing to and reading from
EEPROM using PersistentPoke, PersistentPeek, MemAddress, RAMpeek and
RAMpoke.
- FirstTime.Bas. Use of FirstTime Command and
Persistent Variables.
- Therm_1.BAS. Calculating temperature using an NTC thermistor using floating point routines. By Onya Barnes (Junior).
- ADC0831.Bas. Measuring Temperature using
an NTC Thermistor. By Stacy Anderson (Senior).
- RCTime_1.BAS. Use of the RCTime command in capacitor discharge mode.
- RCTime_2.BAS. Use of RCTime command in
capacitor discharge and charge mode.
- Tm_Blink.BAS. Use of GetTime and PutTime. By David Seebold.
- RTC_1.Bas. Use of PutTimeStamp and GetTimeStamp.
- RTC_2.Bas. Setting a Real Time Clock with a Pushbutton. By David Seebold.
- Periodic.Bas Use of the RTC in controlling periodic events. By Onya Barnes.
- Periodic_2.Bas Use of the Timer()
command for periodic events.
- Pinewood Derby Timer. Determining the
order and time of events.
- TMP04.BAS. Measuring temperature using a
TMP04 temperature to frequency device. Use of Pulsin command.
- Light_Intensity.BAS Measuring light
intensity using a TSL235 light to frequency converter. Illustrates an
application of InputCapture.
- I2C.Bas. Low Level I2C Routines.
- Two4_256_1.Bas. Interfacing with a 24LC256 EEPROM (I2C) by David Seebold.
- DS1624.Bas. Interfacing with a DS1624 I2C Thermometer and EEPROM. By David Seebold.
- DS1803.Bas. Interfacing with a DS1803 Dual Potentiometer (I2C). By David Seebold.
- PCF8574.Bas. Interfacing with a PCF8574
8-bit IO Expander (I2C). By David Seebold.
- Dallas 1-W, Calculating an 8-bit Cyclic Redundacy
Check (CRC)
- Serin_1.Bas. Fetching a serial character.
- Serin_2.Bas. Fetching a null terminated
character array.
- Barom.Bas. Measuring barometric pressure
using an MPX4115 pressure sensor.
- Network.Bas. Networking two BasicX processors. By David Seebold.
- T_Meas.Bas. Performs a temperature measurement and sends result to remote BasicX which displays and controls a stepper. By David Seebold.
Other Links
- ties for second place in the prestigous Mobile Robot Contest (2001) with "the Tortoise" using four BX24s.