PymateIO-PID-controler - Revision history

Dodomi: /* Pymate software PID */

2026-07-12T15:16:47Z

Pymate software PID

← Older revision		Revision as of 17:16, 12 July 2026
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	</syntaxhighlight>		</syntaxhighlight>

	# Other example		== Other example ==

	{{dbox-gray\|1=A typical application of PID would be speed regulation:		{{dbox-gray\|1=A typical application of PID would be speed regulation:

2026-07-12T15:15:27Z

Pymate software PID

← Older revision		Revision as of 17:15, 12 July 2026
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	The example code is made based on a Pico 2 implementation and clearly demonstrate the usage of PID with a SSR relay and a Type-K thermocouple.		The example code is made based on a Pico 2 implementation and clearly demonstrate the usage of PID with a SSR relay and a Type-K thermocouple.

	Here the ~~Power~~ circuit		Here follows the power circuit:

	[[File:PymateIO-PID-Plancha-CMS-00.png]]		[[File:PymateIO-PID-Plancha-CMS-00.png]]

			Here follows the sensor circuit:

	[[File:PymateIO-PID-Plancha-CMS-01.png]]		[[File:PymateIO-PID-Plancha-CMS-01.png]]

2026-07-12T15:14:44Z

Pymate software PID

@@ Line 50: / Line 50: @@
 {{dbox-orange|This controller have been deployed with success into the [https://github.com/mchobby/plancha-cms Plancha-CMS project].<br />
 Do not hesitate to read the [https://github.com/mchobby/plancha-cms/blob/main/examples/test_pid.py test_pid.py] of Plancha-CMS for implementation example.}}
 {{dbox-gray|1=A typical application of PID would be speed regulation:

2026-07-12T14:51:54Z

About PID

← Older revision		Revision as of 16:51, 12 July 2026
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	'''In theoretical world''':		'''In theoretical world''':
	* you set the value (eg: 200°C) and		* you set the value (eg: 200°C) and
	* the device immediately at the target temperature (eg: the oven is at 200°C).		* the device immediately reach the target temperature (eg: the oven is at 200°C).

	'''In real world''':		'''In real world''':

2026-07-12T14:50:33Z

About PID

← Older revision		Revision as of 16:50, 12 July 2026
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	PID regulator can be used to regulates temperature, pressure, speed, illumination, position, ...		PID regulator can be used to regulates temperature, pressure, speed, illumination, position, ...

			{{dbox-gray\|The aim of a PID is to continuously reduce the amount of error between the measured value and the setpoint.}}

	[[File:PymateIO-PID-controler.png]]		[[File:PymateIO-PID-controler.png]]

	~~{{dbox-gray\|The aim of a PID is to continuously reduce the amount of error between the measured value and the setpoint.}}~~

	Let's examine the practical case of an oven set to 200°C		Let's examine the practical case of an oven set to 200°C

2026-07-12T14:50:05Z

About PID

← Older revision		Revision as of 16:50, 12 July 2026
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	{{dbox-gray\|The aim of a PID is to continuously reduce the amount of error between the measured value and the setpoint.}}		{{dbox-gray\|The aim of a PID is to continuously reduce the amount of error between the measured value and the setpoint.}}

	Let's examine the practical case of an oven set to 200°C:		Let's examine the practical case of an oven set to 200°C

	'''In theoretical world''':		'''In theoretical world''':
Line 17:		Line 17:
	* the device immediately at the target temperature (eg: the oven is at 200°C).		* the device immediately at the target temperature (eg: the oven is at 200°C).

	In real world:		'''In real world''':
	* you must starts heating the resistor followed by the air in the oven then the internal walls before getting the temperature stabilized at 200°C. This is named Thermal Inertia.		* you must starts heating the resistor followed by the air in the oven then the internal walls before getting the temperature stabilized at 200°C. This is named Thermal Inertia.
	* So you give a lot of power to the heating resistor to make the temperature raising fast toward 200°C		* So you give a lot of power to the heating resistor to make the temperature raising fast toward 200°C

2026-07-12T14:49:40Z

About PID

← Older revision		Revision as of 16:49, 12 July 2026
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	[[File:PymateIO-PID-controler.png]]		[[File:PymateIO-PID-controler.png]]

	In theoretical world:		{{dbox-gray\|The aim of a PID is to continuously reduce the amount of error between the measured value and the setpoint.}}

			Let's examine the practical case of an oven set to 200°C:

			'''In theoretical world''':
	* you set the value (eg: 200°C) and		* you set the value (eg: 200°C) and
	* the device immediately at the target temperature (eg: the oven is at 200°C).		* the device immediately at the target temperature (eg: the oven is at 200°C).
Line 18:		Line 22:
	* You stop early power delivery soon enough to not overshoot too much the final temperature (otherwise you may reach 300°C... where the meal will carbonize).		* You stop early power delivery soon enough to not overshoot too much the final temperature (otherwise you may reach 300°C... where the meal will carbonize).
	* Finally, giving some transcient pulse of heating will somewhat keep the oven temperature around 200°C.		* Finally, giving some transcient pulse of heating will somewhat keep the oven temperature around 200°C.

	~~{{dbox-gray\|The aim of a PID is to continuously reduce the amount of error between the measured value and the setpoint.}}~~

	Additional ressource about PID regulation:		Additional ressource about PID regulation:

2026-07-12T14:42:41Z

About PID

← Older revision		Revision as of 16:42, 12 July 2026
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	PID regulator can be used to regulates temperature, pressure, speed, illumination, position, ...		PID regulator can be used to regulates temperature, pressure, speed, illumination, position, ...

	[[~~Fichier~~:PymateIO-PID-controler.png]]		[[File:PymateIO-PID-controler.png]]

	In theoretical world:		In theoretical world:

2026-07-12T14:42:18Z

← Older revision		Revision as of 16:42, 12 July 2026
Line 6:		Line 6:

	PID regulator can be used to regulates temperature, pressure, speed, illumination, position, ...		PID regulator can be used to regulates temperature, pressure, speed, illumination, position, ...

			[[Fichier:PymateIO-PID-controler.png]]

	In theoretical world:		In theoretical world:
Line 11:		Line 13:
	* the device immediately at the target temperature (eg: the oven is at 200°C).		* the device immediately at the target temperature (eg: the oven is at 200°C).

	In real ~~live~~:		In real world:
	* you must starts heating the resistor followed by the air in the oven then the internal walls before getting the temperature stabilized at 200°C. This is named Thermal Inertia.		* you must starts heating the resistor followed by the air in the oven then the internal walls before getting the temperature stabilized at 200°C. This is named Thermal Inertia.
	* So you give a lot of power to the heating resistor to make the temperature raising fast toward 200°C		* So you give a lot of power to the heating resistor to make the temperature raising fast toward 200°C

2026-07-12T12:45:52Z

About PID

← Older revision		Revision as of 14:45, 12 July 2026
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	{{dbox-gray\|The aim of a PID is to continuously reduce the amount of error between the measured value and the setpoint.}}		{{dbox-gray\|The aim of a PID is to continuously reduce the amount of error between the measured value and the setpoint.}}

			Additional ressource about PID regulation:

	* [https://youtu.be/k7vxUFVR8Ks?si=56PMJ5-f2gEk11ey PID Controler with Arduino] from Andeas Spiess. A very valuable resource.		* [https://youtu.be/k7vxUFVR8Ks?si=56PMJ5-f2gEk11ey PID Controler with Arduino] from Andeas Spiess. A very valuable resource.