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EDS -Embedded Data Systems Sensors EDS0064 -Temperature EDS0065 -Temperature and Humidity EDS0066 -Temperature and Barometric Pressure EDS0067 -Temperature and Light EDS0068 -Temperature, Barometric Pressure and Light EDS0071 -RTD 4-wire temperature EDS0072 -RTD 3-wire temperature
Embedded Data Systems microprocessor-based sensors Sub-type ( all ) 7E [.]XXXXXXXXXXXX[XX][/[ device_id | device_type | tag ]] Memory ( all ) 7E [.]XXXXXXXXXXXX[XX][/[ memory | pages/page.[0-2|ALL] ]] Standard ( all ) 7E [.]XXXXXXXXXXXX[XX][/[ address | crc8 | id | locator | r_address | r_id | r_locator | type ]] Temperature ( EDS0064/5/6/7/8 ) 7E.XXXXXXXXXXXX/EDS006X [/[ temperature | counters/seconds | alarm/ temp_[hi|low] | set_alarm/ temp_[hi|low] | threshold/ temp_[hi|low] ]] Humidity ( EDS0065/8 ) 7E.XXXXXXXXXXXX/EDS006X [/[ humidity | humidex | dew_point | heat_index | alarm/ humidity_[hi|low] | alarm/ humidex_[hi|low] | alarm/ dew_point_[hi|low] | alarm/ heat_index_[hi|low] | set_alarm/ humidity_[hi|low] | set_alarm/ humidex_[hi|low] | set_alarm/ dew_point_[hi|low] | set_alarm/ heat_index_[hi|low] | threshold/ humidity_[hi|low] | threshold/ humidex_[hi|low] | threshold/ dew_point_[hi|low] | threshold/ heat_index_[hi|low] ]] Barometric Pressure ( EDS0066/8 ) 7E.XXXXXXXXXXXX/EDS006X [/[ pressure | inHg | alarm/ pressure_[hi|low] | alarm/ inHg_[hi|low] | set_alarm/ pressure_[hi|low] | set_alarm/ inHg_[hi|low] | threshold/ pressure_[hi|low] | threshold/ inHg_[hi|low] ]] Light ( EDS0067/8 ) 7E.XXXXXXXXXXXX/EDS006X [/[ light | alarm/ light_[hi|low] | set_alarm/ light_[hi|low] | threshold/ light_[hi|low] ]] RTD Temperature ( EDS0071/2 ) 7E.XXXXXXXXXXXX/EDS007X [/[ temperature | resistance | raw | delay | user_byte | calibration/[key|constant] | counter/[seconds|samples] | alarm/temp_[hi|low] | alarm/RTD_[hi_low] | set_alarm/temp_[hi|low] | set_alarm/RTD_[hi_low] | threshold/temp_[hi|low] | threshold/RTD_[hi_low] ]] LED ( all ) 7E.XXXXXXXXXXXX/EDS00XX/LED/[state|control] relay ( all ) 7E.XXXXXXXXXXXX/EDS00XX/relay/[state|control]
EDS006X/temperature read-only, floating-point Temperature for the EDS006X series of chips. In the -55C to 125C range, with 0.0636C precision. The temperature is read every second, continually. Data is presented in the specified temperature scale, Celsius by default. EDS007X/temperature read-only, floating-point Temperature for the EDS007X series of chips. Read using a wide-range precise RTD sensor. Typical range is -60C to 260C with 0.15C accuracy, although a range of -200C to 850C is possible. The temperature is read every second unless a longer EDS007X/delay is given. Data is presented in the specified temperature scale, Celsius by default. EDS007X/resistance read-only, floating-point Actual measured resistance (Ohms) of the RTD element. Useful if the RTD element doesn't conform to the typical European IEC 60751 standard.
EDS006X/humidity read-only, floating-point Relative humidity in the 0-100 range (percent). Read every 0.2 seconds. EDS006X/dew_point read-only, floating-point Dew point computed from EDS006X/temperature and EDS006X/humidity computered every 0.2 seconds. Data is a calculated temperature and is reported in the specified temperature scale. Default Celsius. EDS006X/heat_index read-only, floating-point Heat index computed from EDS006X/temperature and EDS006X/humidity computered every 0.2 seconds. Data is a calculated temperature and is reported in the specified temperature scale. Default Celsius. EDS006X/humidex read-only, floating-point Humidex (popular in Canada) computed from EDS006X/temperature and EDS006X/humidity computered every 0.2 seconds. Data is a percent and reported in the 0-100 range.
EDS006X/light read-only, unsigned integer Ambient light in Lux. Measured every 0.2 seconds.
EDS006X/pressure read-only, floating-point Ambient pressure, measured every 0.2 seconds. Data in the selected pressure scale (default mBar). EDS006X/inHg read-only, floating-point Ambient pressure, measured every 0.2 seconds. Data in the inHg scale.
High and low range of acceptable sensor readings. Values outside this range will trigger an alarm if the corresponding EDS00XX/set_alarm flag is set. EDS00XX/threshold/temp_hi EDS00XX/threshold/temp_low read-write, floating-point Threshold temperatures in the specified temperature scale. Default Celsius. EDS006X/threshold/humidity_hi EDS006X/threshold/humidity_low EDS006X/threshold/dew_point_hi EDS006X/threshold/dew_point_low EDS006X/threshold/heat_index_hi EDS006X/threshold/heat_index_low EDS006X/threshold/humidex_hi EDS006X/threshold/humidex_low read-write, floating-point Threshold humidity values. Dew point and Heat index are in the specified temperature scale. Default Celsius. EDS006X/threshold/pressure_hi EDS006X/threshold/pressure_low EDS006X/threshold/inHg_hi EDS006X/threshold/inHg_low read-write, floating-point Threshold barometric pressure values. Pressure is the specified pressure scale. Default mBar. EDS006X/threshold/light_hi EDS006X/threshold/light_low read-write, unsigned Threshold light (lux) values. EDS007X/threshold/resistance_hi EDS007X/threshold/resistance_low read-write, floating-point Threshold RTD resistance values (Ohm).
Set conditional alarm to trigger if corresponding flag is set. Also must set high and low threshold. EDS00XX/set_alarm/temp_hi EDS00XX/set_alarm/temp_low EDS006X/set_alarm/humidity_hi EDS006X/set_alarm/humidity_low EDS006X/set_alarm/dew_point_hi EDS006X/set_alarm/dew_point_low EDS006X/set_alarm/heat_index_hi EDS006X/set_alarm/heat_index_low EDS006X/set_alarm/humidex_hi EDS006X/set_alarm/humidex_low EDS006X/set_alarm/pressure_hi EDS006X/set_alarm/pressure_low EDS006X/set_alarm/inHg_hi EDS006X/set_alarm/inHg_low EDS006X/set_alarm/light_hi EDS006X/set_alarm/light_low EDS007X/set_alarm/resistance_hi EDS007X/set_alarm/resistance_low read-write, yes-no Flag to set corresponding out-of-range alarm. "1" turns on flag, and "0" turns off.
Show or clear the out-of-range flags. When set, the device will respond to a conditional search. Clearing the flags is performed with the EDS00XX/alarm/clear command, not just having the measured value return to the center range. EDS00XX/alarm/clear write-only, yes-no Write "1" to clear ALL the alarm flags. EDS00XX/alarm/temp_hi EDS00XX/alarm/temp_low EDS006X/alarm/humidity_hi EDS006X/alarm/humidity_low EDS006X/alarm/dew_point_hi EDS006X/alarm/dew_point_low EDS006X/alarm/heat_index_hi EDS006X/alarm/heat_index_low EDS006X/alarm/humidex_hi EDS006X/alarm/humidex_low EDS006X/alarm/pressure_hi EDS006X/alarm/pressure_low EDS006X/alarm/inHg_hi EDS006X/alarm/inHg_low EDS006X/alarm/light_hi EDS006X/alarm/light_low EDS007X/alarm/resistance_hi EDS007X/alarm/resistance_low read-only, yes-no Flag to set corresponding out-of-range alarm. "1" turns on flag, and "0" turns off.
Optionally found on the EDS006X and EDS007X. Can be controlled by software or the alarm condition. EDS00XX/relay/control read-write, unsigned Set the relay control scheme: 0 alarm control with hysteresis 1 alarm control but need EDS00XX/alarm/clear to unset 2 Control with EDS00XX/relay/state 3 Always off EDS00XX/relay/state read-write, yes-no Turn the relay on or off if the EDS00XX/relay/control is set to 2
Found on the EDS006X and EDS007X. Can be controlled by software or the alarm condition. EDS00XX/LED/control read-write, unsigned Set the LED control scheme: 0 alarm control with hysteresis 1 alarm control but need EDS00XX/alarm/clear to unset 2 Control with EDS00XX/LED/state 3 Always off EDS00XX/LED/state read-write, yes-no Turn the LED on or off if the EDS00XX/LED/control is set to 2
EDS00XX/counter/seconds read-only, unsigned integer Approximate seconds since power up. EDS007X/counter/samples read-only, unsigned integer Approximate samples since power up.
memory read-write, binary 96 bytes of memory. Not all is writable. Access to EDS00XX functions is better accomplished through the data fields, which expose all the chip features. pages/page.0 ... pages/page.2 pages/page.ALL read-write, binary Memory is split into 3 pages of 32 bytes each. Only page 2 is writable. ALL is an aggregate of the pages. Each page is accessed sequentially.
tag read-only, ascii Text description of the device. Up to 30 characters. device_type read-only, ascii Device name. E.g: "EDS0071" device_id read-only, unsigned Number corresponding to the hexidecimal type. E.g: EDS0071 -> 0x0071 -> 113 in decimal
address r_address read-only, ascii The entire 64-bit unique ID. Given as upper case hexidecimal digits (0-9A-F). address starts with the family code r address is the address in reverse order, which is often used in other applications and labeling. crc8 read-only, ascii The 8-bit error correction portion. Uses cyclic redundancy check. Computed from the preceding 56 bits of the unique ID number. Given as upper case hexidecimal digits (0-9A- F). family read-only, ascii The 8-bit family code. Unique to each type of device. Given as upper case hexidecimal digits (0-9A-F). id r_id read-only, ascii The 48-bit middle portion of the unique ID number. Does not include the family code or CRC. Given as upper case hexidecimal digits (0-9A-F). r id is the id in reverse order, which is often used in other applications and labeling. locator r_locator read-only, ascii Uses an extension of the 1-wire design from iButtonLink company that associated 1-wire physical connections with a unique 1-wire code. If the connection is behind a Link Locator the locator will show a unique 8-byte number (16 character hexidecimal) starting with family code FE. If no Link Locator is between the device and the master, the locator field will be all FF. r locator is the locator in reverse order. present (DEPRECATED) read-only, yes-no Is the device currently present on the 1-wire bus? type read-only, ascii Part name assigned by Dallas Semi. E.g. DS2401 Alternative packaging (iButton vs chip) will not be distiguished.
1-Wire 1-wire is a wiring protocol and series of devices designed and manufactured by Dallas Semiconductor, Inc. The bus is a low-power low-speed low-connector scheme where the data line can also provide power. Each device is uniquely and unalterably numbered during manufacture. There are a wide variety of devices, including memory, sensors (humidity, temperature, voltage, contact, current), switches, timers and data loggers. More complex devices (like thermocouple sensors) can be built with these basic devices. There are also 1-wire devices that have encryption included. The 1-wire scheme uses a single bus master and multiple slaves on the same wire. The bus master initiates all communication. The slaves can be individually discovered and addressed using their unique ID. Bus masters come in a variety of configurations including serial, parallel, i2c, network or USB adapters. OWFS design OWFS is a suite of programs that designed to make the 1-wire bus and its devices easily accessible. The underlying priciple is to create a virtual filesystem, with the unique ID being the directory, and the individual properties of the device are represented as simple files that can be read and written. Details of the individual slave or master design are hidden behind a consistent interface. The goal is to provide an easy set of tools for a software designer to create monitoring or control applications. There are some performance enhancements in the implementation, including data caching, parallel access to bus masters, and aggregation of device communication. Still the fundemental goal has been ease of use, flexibility and correctness rather than speed. EDS00XX Overview The EDS00XX sensors are a family of devices from Embedded Data Systems. Although provisional support for several types is included, only early EDS0071 has been tested with OWFS. The sensors all share the same 7E family code. They have the same first memory page layout with a text tag property that describes them, and a sub-type field giving the particular sensor. The data properties shown in a directory listing will be specific to the sensor sub-type. EDS0071 The EDS0071 (3) is a micro-processor based 1-wire slave made by EDS (Embedded Data Systams). Is uses a high accuracy and extended range RTD sensor to accurately measure temperatures.
All 1-wire devices are factory assigned a unique 64-bit address. This address is of the form: Family Code 8 bits Address 48 bits CRC 8 bits Addressing under OWFS is in hexidecimal, of form: 01.123456789ABC where 01 is an example 8-bit family code, and 12345678ABC is an example 48 bit address. The dot is optional, and the CRC code can included. If included, it must be correct.
Programs owfs (1) owhttpd (1) owftpd (1) owserver (1) owdir (1) owread (1) owwrite (1) owpresent (1) owtap (1) Configuration and testing owfs (5) owtap (1) owmon (1) Language bindings owtcl (3) owperl (3) owcapi (3) Clocks DS1427 (3) DS1904(3) DS1994 (3) DS2404 (3) DS2404S (3) DS2415 (3) DS2417 (3) ID DS2401 (3) DS2411 (3) DS1990A (3) Memory DS1982 (3) DS1985 (3) DS1986 (3) DS1991 (3) DS1992 (3) DS1993 (3) DS1995 (3) DS1996 (3) DS2430A (3) DS2431 (3) DS2433 (3) DS2502 (3) DS2506 (3) DS28E04 (3) DS28EC20 (3) Switches DS2405 (3) DS2406 (3) DS2408 (3) DS2409 (3) DS2413 (3) DS28EA00 (3) Temperature DS1822 (3) DS1825 (3) DS1820 (3) DS18B20 (3) DS18S20 (3) DS1920 (3) DS1921 (3) DS1821 (3) DS28EA00 (3) DS28E04 (3) EDS0064 (3) EDS0065 (3) EDS0066 (3) EDS0067 (3) EDS0068 (3) EDS0071 (3) EDS0072 (3) Humidity DS1922 (3) DS2438 (3) EDS0065 (3) EDS0068 (3) Voltage DS2450 (3) Resistance DS2890 (3) Multifunction (current, voltage, temperature) DS2436 (3) DS2437 (3) DS2438 (3) DS2751 (3) DS2755 (3) DS2756 (3) DS2760 (3) DS2770 (3) DS2780 (3) DS2781 (3) DS2788 (3) DS2784 (3) Counter DS2423 (3) LCD Screen LCD (3) DS2408 (3) Crypto DS1977 (3) Pressure DS2406 (3) -- TAI8570 EDS0066 (3) EDS0068 (3)
Paul Alfille (email@example.com)