Getting started with CAN bus - Revision history

RetroZero: Added ESP32_S3 and SavvyCan set-up

2024-04-21T18:01:08Z

Added ESP32_S3 and SavvyCan set-up

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 == I want to receive or send simple CAN bus messages... ==
 If you already know which CAN bus messages you want to send or receive, one of the cheapest ways to do this is with an [[Getting started with CAN bus and an Arduino Uno|Arduino Uno and a suitable CAN bus shield]].
 == I want to analyse CAN bus traffic and possibly do some serious hacking... ==

PrecisionAnalytic: Added LIN Category

2023-02-20T04:32:22Z

Added LIN Category

← Older revision		Revision as of 04:32, 20 February 2023
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	Here's a simple CAN bus [[State of Charge meter using a Teensy 4.0]].		Here's a simple CAN bus [[State of Charge meter using a Teensy 4.0]].



	== Local Interconnect Network ==		== Local Interconnect Network ==
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	For more info and history on can see: https://en.wikipedia.org/wiki/Local_Interconnect_Network		For more info and history on can see: https://en.wikipedia.org/wiki/Local_Interconnect_Network

	[[Category:CAN]] [[Category:Introduction]] [[Category:Tutorials]]		[[Category:CAN]] [[Category:LIN]] [[Category:Introduction]] [[Category:Tutorials]]

PrecisionAnalytic: Added LIN last heading and paragraph with reference to Wikipedia

2023-02-20T04:30:43Z

Added LIN last heading and paragraph with reference to Wikipedia

← Older revision		Revision as of 04:30, 20 February 2023
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	A '''Controller Area Network''' ('''CAN bus''') is a robust vehicle bus standard designed to allow microcontrollers and devices to communicate with each other's applications without a host computer. It is a message-based protocol, designed originally for multiplex electrical wiring within automobiles to save on copper, but it can also be used in many other contexts. For each device, the data in a frame is transmitted sequentially but in such a way that if more than one device transmits at the same time, the highest priority device can continue while the others back off. Frames are received by all devices, including by the transmitting device.		A '''Controller Area Network''' ('''CAN bus''') is a robust vehicle bus standard designed to allow microcontrollers and devices to communicate with each other's applications without a host computer. It is a message-based protocol, designed originally for multiplex electrical wiring within automobiles to save on copper, but it can also be used in many other contexts. For each device, the data in a frame is transmitted sequentially but in such a way that if more than one device transmits at the same time, the highest priority device can continue while the others back off. Frames are received by all devices, including by the transmitting device.

	~~for~~ more info and history on can see https://en.wikipedia.org/wiki/CAN_bus		For more info and history on can see: https://en.wikipedia.org/wiki/CAN_bus


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	Here's a simple CAN bus [[State of Charge meter using a Teensy 4.0]].		Here's a simple CAN bus [[State of Charge meter using a Teensy 4.0]].

			== Local Interconnect Network ==
			'''LIN''' ('''Local Interconnect Network''') is a serial network protocol used for communication between components in vehicles. It is a single wire, serial network protocol that supports communications up to 19.2 Kbit/s at a bus length of 40 meters. The need for a cheap serial network arose as the technologies and the facilities implemented in the car grew, while the CAN bus was too expensive to implement for every component in the car. European car manufacturers started using different serial communication technologies, which led to compatibility problems.

			For more info and history on can see: https://en.wikipedia.org/wiki/Local_Interconnect_Network

	[[Category:CAN]] [[Category:Introduction]] [[Category:Tutorials]]		[[Category:CAN]] [[Category:Introduction]] [[Category:Tutorials]]

Mark: Added collapsible transcript to "What is CAN Logging?" video

2022-11-29T21:49:02Z

Added collapsible transcript to "What is CAN Logging?" video

Show changes

Scrappyjoe: The link doesn’t work. I went to EVTV to find a similar product, and used that link instead.

2022-08-10T19:01:39Z

The link doesn’t work. I went to EVTV to find a similar product, and used that link instead.

← Older revision		Revision as of 19:01, 10 August 2022
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	== I want to analyse CAN bus traffic and possibly do some serious hacking... ==		== I want to analyse CAN bus traffic and possibly do some serious hacking... ==
	If you want to analyse CAN bus messages on an existing vehicle, you'll need the help of some software. You can use the free [https://www.savvycan.com SavvyCAN software] together with a [[CAN bus with Arduino Due\|suitably configured Arduino Due]] or [[Getting CAN working on a Teensy 3.6\|Teensy]]. Alternatively, you can buy a [~~http~~://store.evtv.me/~~proddetail.php~~?~~prod~~=~~ArduinoDueCANBUS~~ pre-configured Due-based kit from EVTV].		If you want to analyse CAN bus messages on an existing vehicle, you'll need the help of some software. You can use the free [https://www.savvycan.com SavvyCAN software] together with a [[CAN bus with Arduino Due\|suitably configured Arduino Due]] or [[Getting CAN working on a Teensy 3.6\|Teensy]]. Alternatively, you can buy a [https://store.evtv.me/products/evtvdue2?_pos=3&_sid=e04f934ae&_ss=r pre-configured Due-based kit from EVTV].

	<youtube>https://www.youtube.com/watch?v=MsrXs-tJKaY</youtube>		<youtube>https://www.youtube.com/watch?v=MsrXs-tJKaY</youtube>

Crasbe: Added categories to the page to allow for better navigation

2022-01-21T22:22:11Z

Added categories to the page to allow for better navigation

← Older revision		Revision as of 22:22, 21 January 2022
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	Here's a simple CAN bus [[State of Charge meter using a Teensy 4.0]].		Here's a simple CAN bus [[State of Charge meter using a Teensy 4.0]].

			[[Category:CAN]] [[Category:Introduction]] [[Category:Tutorials]]

Bratitude at 22:45, 9 October 2021

2021-10-09T22:45:05Z

← Older revision		Revision as of 22:45, 9 October 2021
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	A '''Controller Area Network''' ('''CAN bus''') is a robust vehicle bus standard designed to allow microcontrollers and devices to communicate with each other's applications without a host computer. It is a message-based protocol, designed originally for multiplex electrical wiring within automobiles to save on copper, but it can also be used in many other contexts. For each device, the data in a frame is transmitted sequentially but in such a way that if more than one device transmits at the same time, the highest priority device can continue while the others back off. Frames are received by all devices, including by the transmitting device.		A '''Controller Area Network''' ('''CAN bus''') is a robust vehicle bus standard designed to allow microcontrollers and devices to communicate with each other's applications without a host computer. It is a message-based protocol, designed originally for multiplex electrical wiring within automobiles to save on copper, but it can also be used in many other contexts. For each device, the data in a frame is transmitted sequentially but in such a way that if more than one device transmits at the same time, the highest priority device can continue while the others back off. Frames are received by all devices, including by the transmitting device.

			for more info and history on can see https://en.wikipedia.org/wiki/CAN_bus

Bratitude at 22:44, 9 October 2021

2021-10-09T22:44:22Z

← Older revision		Revision as of 22:44, 9 October 2021
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			A '''Controller Area Network''' ('''CAN bus''') is a robust vehicle bus standard designed to allow microcontrollers and devices to communicate with each other's applications without a host computer. It is a message-based protocol, designed originally for multiplex electrical wiring within automobiles to save on copper, but it can also be used in many other contexts. For each device, the data in a frame is transmitted sequentially but in such a way that if more than one device transmits at the same time, the highest priority device can continue while the others back off. Frames are received by all devices, including by the transmitting device.


	This page will help get you started with CAN bus.		This page will help get you started with CAN bus.

Clanger9: /* I want to build a CAN bus device... */

2021-08-10T19:05:47Z

I want to build a CAN bus device...

← Older revision		Revision as of 19:05, 10 August 2021
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	== I want to build a CAN bus device... ==		== I want to build a CAN bus device... ==
	Once you've got your CAN messages sorted, you can build a dedicated device to send or receive those messages. For example, you could build a custom battery gauge. Or add a touch screen controller. Anything is possible! If you want, you can just use the Arduino hardware described above. Alternatively, something small and reasonably robust like a [https://www.pjrc.com/teensy/techspecs.html Teensy 3.x] might be a better choice for a permanent solution. Here's a quick-start guide to [[getting CAN working on a Teensy 3.6]].		Once you've got your CAN messages sorted, you can build a dedicated device to send or receive those messages. For example, you could build a custom battery gauge. Or add a touch screen controller. Anything is possible! If you want, you can just use the Arduino hardware described above. Alternatively, something small and reasonably robust like a [https://www.pjrc.com/teensy/techspecs.html Teensy 3.x] might be a better choice for a permanent solution.

			Here's a quick-start guide to [[getting CAN working on a Teensy 3.6]].

			Here's a simple CAN bus [[State of Charge meter using a Teensy 4.0]].

4markowen at 14:30, 29 June 2021

2021-06-29T14:30:41Z

← Older revision		Revision as of 14:30, 29 June 2021
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	== I want to analyse CAN bus traffic and possibly do some serious hacking... ==		== I want to analyse CAN bus traffic and possibly do some serious hacking... ==
	If you want to analyse CAN bus messages on an existing vehicle, you'll need the help of some software. You can use the free [https://www.savvycan.com SavvyCAN software] together with a [[CAN bus with Arduino Due\|suitably configured Arduino Due]] or [[Getting CAN working on a Teensy 3.6\|Teensy]]. Alternatively, you can buy a [http://store.evtv.me/proddetail.php?prod=ArduinoDueCANBUS pre-configured Due-based kit from EVTV].		If you want to analyse CAN bus messages on an existing vehicle, you'll need the help of some software. You can use the free [https://www.savvycan.com SavvyCAN software] together with a [[CAN bus with Arduino Due\|suitably configured Arduino Due]] or [[Getting CAN working on a Teensy 3.6\|Teensy]]. Alternatively, you can buy a [http://store.evtv.me/proddetail.php?prod=ArduinoDueCANBUS pre-configured Due-based kit from EVTV].

			<youtube>https://www.youtube.com/watch?v=MsrXs-tJKaY</youtube>

	== I want to build a CAN bus device... ==		== I want to build a CAN bus device... ==
	Once you've got your CAN messages sorted, you can build a dedicated device to send or receive those messages. For example, you could build a custom battery gauge. Or add a touch screen controller. Anything is possible! If you want, you can just use the Arduino hardware described above. Alternatively, something small and reasonably robust like a [https://www.pjrc.com/teensy/techspecs.html Teensy 3.x] might be a better choice for a permanent solution. Here's a quick-start guide to [[getting CAN working on a Teensy 3.6]].		Once you've got your CAN messages sorted, you can build a dedicated device to send or receive those messages. For example, you could build a custom battery gauge. Or add a touch screen controller. Anything is possible! If you want, you can just use the Arduino hardware described above. Alternatively, something small and reasonably robust like a [https://www.pjrc.com/teensy/techspecs.html Teensy 3.x] might be a better choice for a permanent solution. Here's a quick-start guide to [[getting CAN working on a Teensy 3.6]].