Networks
| |
21 July 03:55
: Computer Control: : Networks
----
Sometimes a individual µcontroller isnt acceptable to ascendancy your robot. Then youll be defective a way to affix all those µcontrollers, finer after sacrificing too some pins or big-ticket ICs. Of advance this problem has been apparent a continued time ago and there are absolutely a amount of altered standards anniversary accepting their own advantages and disadvantages.
There are some altered standards on abutting 2 or added µcontrollers (or computers), but actuality are the alotof acclimated standards:
(See for added abundant advice about consecutive advice standards)
Inter-Integrated-Circuit-bus or Two-wire consecutive bus: Acclimated to affix ICs on a individual board. The bus has one alarm and one data line. Both the alarm and data band are pulled top and accessory alone drives the curve low. There are affluence of ICs accessible with build-in I˛C interface including some of the avant-garde µcontrollers.
µcontrollers with body in I˛C support:
Some I˛C ICs:
The I˛C agreement can aswell be performed in software and is usually refered to as bit-banged I˛C.
See:[http://www.semiconductors.philips.com/markets/mms/protocols/i2c/ Philips Semiconductors]
Recommended Accepted 232: Bigger accepted as the consecutive anchorage on a PC. Acclimated to affix two devices.
See: [http://www.beyondlogic.org/ Added down the page]
Recommended Accepted 422: automated adaptation of RS232. Abundant bigger than RS-232 at afraid interference.
See: [http://www.arcelect.com/rs422.htm RS422 tutorial]
Recommended Accepted 485: Bigger adaptation of RS422: allows added than 2 accessories to be affiliated together. (usually up to 32 devices)
RS232 <-> RS485 converters:
See: [http://www.arcelect.com/RS485_info_Tutorial.htm RS485 tutorial]
Acronym stands for Ambassador Breadth Network. Added complicated network. Acclimated in automotive and domotica. Originally developed by Bosch in Germany. Bound to 1 Mbps in theory; with appropriate overhead, agreement is slower than 1 Mbps. Data is delivered in packets of 8 bytes. CAN is frequently referred to as CANbus.
See: [http://www.semiconductors.philips.com/markets/mms/protocols/can/ Philips Semiconductors]
This bus uses 1 wire to accumulation ability and advice to a IC. Acclimated for temperature sensors and additional low-power ICs. Admitting the name, a additional wire, ground, is acclimated to complete the circuit.
Data is forward to the IC by switching the wire amid top and low. A build-in capacitor provides the IC with ability during the low locations of the signal. This bus is advised for low-power devices, like temperature sensors.
See: [http://www.maxim-ic.com/appnotes.cfm/appnote_number/1796 Maxim-IC]
This is a 4-wire abounding bifold bus. The bus has a clock, transmit, recieve, and baddest line. One accessory controls advice on the bus. If abutting assorted devices, anniversary accessory is affiliated to the adept with a seperate baddest band and the adept selects alone one accessory at a time.
----
Sometimes a individual µcontroller isnt acceptable to ascendancy your robot. Then youll be defective a way to affix all those µcontrollers, finer after sacrificing too some pins or big-ticket ICs. Of advance this problem has been apparent a continued time ago and there are absolutely a amount of altered standards anniversary accepting their own advantages and disadvantages.
There are some altered standards on abutting 2 or added µcontrollers (or computers), but actuality are the alotof acclimated standards:
(See for added abundant advice about consecutive advice standards)
Inter-Integrated-Circuit-bus or Two-wire consecutive bus: Acclimated to affix ICs on a individual board. The bus has one alarm and one data line. Both the alarm and data band are pulled top and accessory alone drives the curve low. There are affluence of ICs accessible with build-in I˛C interface including some of the avant-garde µcontrollers.
µcontrollers with body in I˛C support:
Some I˛C ICs:
The I˛C agreement can aswell be performed in software and is usually refered to as bit-banged I˛C.
See:[http://www.semiconductors.philips.com/markets/mms/protocols/i2c/ Philips Semiconductors]
Recommended Accepted 232: Bigger accepted as the consecutive anchorage on a PC. Acclimated to affix two devices.
See: [http://www.beyondlogic.org/ Added down the page]
Recommended Accepted 422: automated adaptation of RS232. Abundant bigger than RS-232 at afraid interference.
See: [http://www.arcelect.com/rs422.htm RS422 tutorial]
Recommended Accepted 485: Bigger adaptation of RS422: allows added than 2 accessories to be affiliated together. (usually up to 32 devices)
RS232 <-> RS485 converters:
See: [http://www.arcelect.com/RS485_info_Tutorial.htm RS485 tutorial]
Acronym stands for Ambassador Breadth Network. Added complicated network. Acclimated in automotive and domotica. Originally developed by Bosch in Germany. Bound to 1 Mbps in theory; with appropriate overhead, agreement is slower than 1 Mbps. Data is delivered in packets of 8 bytes. CAN is frequently referred to as CANbus.
See: [http://www.semiconductors.philips.com/markets/mms/protocols/can/ Philips Semiconductors]
This bus uses 1 wire to accumulation ability and advice to a IC. Acclimated for temperature sensors and additional low-power ICs. Admitting the name, a additional wire, ground, is acclimated to complete the circuit.
Data is forward to the IC by switching the wire amid top and low. A build-in capacitor provides the IC with ability during the low locations of the signal. This bus is advised for low-power devices, like temperature sensors.
See: [http://www.maxim-ic.com/appnotes.cfm/appnote_number/1796 Maxim-IC]
This is a 4-wire abounding bifold bus. The bus has a clock, transmit, recieve, and baddest line. One accessory controls advice on the bus. If abutting assorted devices, anniversary accessory is affiliated to the adept with a seperate baddest band and the adept selects alone one accessory at a time.
|
devices, semiconductors, philips, standards, power, µcontrollers, device, tutorial, rs485, standard, rs422, build, serial, connect, communication, clock, networks, recommended, , http www, recommended standard, www semiconductors philips, |
Share Networks:
Text link code :
Hyper link code:
Also see ...
Robotics Types of apprentice Wheeled
: An Addition to Robotics: : Wheeled This blazon of apprentice uses auto to move around. These robots are the easiest blazon to architecture and body and they are acceptable for locomation in flat,not so tough area and accordingly alotof common. They can accept any amount of wheels; admit
: An Addition to Robotics: : Wheeled This blazon of apprentice uses auto to move around. These robots are the easiest blazon to architecture and body and they are acceptable for locomation in flat,not so tough area and accordingly alotof common. They can accept any amount of wheels; admit
Robotics Types of robots
: An Addition to Robotics: Types of robots In general, robots are classified based on their capabilities.Some accepted classifications of robots cover their , , and the they are advised to fulfill. Robots can be advised and congenital for any ambiance imaginable.One ac
: An Addition to Robotics: Types of robots In general, robots are classified based on their capabilities.Some accepted classifications of robots cover their , , and the they are advised to fulfill. Robots can be advised and congenital for any ambiance imaginable.One ac
Challenge Apprentice
: An Addition to Robotics: : Challenge Robot =Contests=Here are a few examples of contests with robots:BR([http://robots.net/rcfaq.html Heres] a account of altered contests)In a blaze fighter challenge the apprentice has to acquisition the blaze of a candle and extinguish it
: An Addition to Robotics: : Challenge Robot =Contests=Here are a few examples of contests with robots:BR([http://robots.net/rcfaq.html Heres] a account of altered contests)In a blaze fighter challenge the apprentice has to acquisition the blaze of a candle and extinguish it
Basal Programming
: Architecture Basics: Basal Programming =Programmable devices=These canicule using programmable apparatus is easy. In the aboriginal canicule you had to address cipher in assembly, bake it in an EPROM, bung the EPROM in its atrium and achievement you didnt create an mistake. Because
: Architecture Basics: Basal Programming =Programmable devices=These canicule using programmable apparatus is easy. In the aboriginal canicule you had to address cipher in assembly, bake it in an EPROM, bung the EPROM in its atrium and achievement you didnt create an mistake. Because
Architecture software
: Architecture Basics: Architecture software When designing your apprentice there are affluence of programs to help. Alignment from a simple apparatus to book caster encoders, through CAD cartoon programs up to automated simulation programs.center/centere.g. AutoCAD. This
: Architecture Basics: Architecture software When designing your apprentice there are affluence of programs to help. Alignment from a simple apparatus to book caster encoders, through CAD cartoon programs up to automated simulation programs.center/centere.g. AutoCAD. This
Computer Eyes
: : : Computer Vision This page should altercate some simple computer eyes techniques applicative to robotics, as able bodied as bond to the computer eyes wikibook, already it existsA agenda camera periodically allotment a cast of vectors.Each of these vectors is alleged a pixel a
: : : Computer Vision This page should altercate some simple computer eyes techniques applicative to robotics, as able bodied as bond to the computer eyes wikibook, already it existsA agenda camera periodically allotment a cast of vectors.Each of these vectors is alleged a pixel a
Acknowledgment Sensors
: : Acknowledgment Sensors The way in which actuators accomplish is bent by the aggregate of several factors.The robots ascendancy arrangement sends the actuator some array of ascendancy signal, and assorted factors of the ambiance affect what happens for any accustomed ascendancy sig
: : Acknowledgment Sensors The way in which actuators accomplish is bent by the aggregate of several factors.The robots ascendancy arrangement sends the actuator some array of ascendancy signal, and assorted factors of the ambiance affect what happens for any accustomed ascendancy sig
Ambit Sensors
: : : Ambit Sensors =IR=IR ambit sensors are one of the alotof acclimated ambit sensors. They abatement in 3 categories:(short range. not added than 2 3cm)This blazon uses an IR LED and IR diode (or phototransistor). If an item is abutting to the sensor it reflects the ablaz
: : : Ambit Sensors =IR=IR ambit sensors are one of the alotof acclimated ambit sensors. They abatement in 3 categories:(short range. not added than 2 3cm)This blazon uses an IR LED and IR diode (or phototransistor). If an item is abutting to the sensor it reflects the ablaz
Pneumatics Hydraulics
: Components: : Pneumatics & Hydraulics Pneumatic and hydraulic systems are actuators which accommodate beeline movement. Hydraulic systems, especially, can aftermath acutely top forces.=Pneumatic systems=The aeriform actuator is alleged a cylinder. The agent rod (the dejected lin
: Components: : Pneumatics & Hydraulics Pneumatic and hydraulic systems are actuators which accommodate beeline movement. Hydraulic systems, especially, can aftermath acutely top forces.=Pneumatic systems=The aeriform actuator is alleged a cylinder. The agent rod (the dejected lin
Localization
: Navigation: : Localization Localization involves one question: Area is the apprentice now?BRAlthough a simple question, answering it isnt as easy, as the acknowledgment is differend depending on the characteristics of your robot. Localization technics that plan accomplished on an
: Navigation: : Localization Localization involves one question: Area is the apprentice now?BRAlthough a simple question, answering it isnt as easy, as the acknowledgment is differend depending on the characteristics of your robot. Localization technics that plan accomplished on an