Diskussion:Sensorinbetriebnahme mit Arduino und Simulink - Versionsgeschichte

Onyesi-john.abiagam@stud.hshl.de am 9. Juni 2026 um 09:48 Uhr

2026-06-09T09:48:07Z

← Nächstältere Version		Version vom 9. Juni 2026, 09:48 Uhr
Zeile 5:		Zeile 5:
	\| 1 \|\| 03.03.26 \|\|		\| 1 \|\| 03.03.26 \|\|
	* Send the signed contract to administration.		* Send the signed contract to administration.

	* Safety briefing		* Safety briefing
	* Workplace preparation (login, etc.)		* Workplace preparation (login, etc.)
Zeile 15:		Zeile 14:
	\| A \|\| 100% \|\|		\| A \|\| 100% \|\|

			* Contract signed and sent back to administration
	*Mass measurement using HX711 implemented in Arduino ~~fully and partially~~ in ~~Simulink.~~		* I have received Safety briefing from Mr Marc Ebmeyer
			* Workplace Preparation already done
			* SVN accesss granted
			* Wiki access granted
			* How to record working hours already explained
			* Transponder already issued
			* Mass measurement using HX711 fully implemented in Arduino
			* Mass measurement using HX711 implementedfully implemented in SIMULINK
	\|-		\|-
	\| 2 \|\| 10.03.26 \|\|		\| 2 \|\| 10.03.26 \|\|

Onyesi-john.abiagam@stud.hshl.de am 8. Juni 2026 um 17:02 Uhr

2026-06-08T17:02:38Z

← Nächstältere Version		Version vom 8. Juni 2026, 17:02 Uhr
Zeile 13:		Zeile 13:
	* Transponder issuance		* Transponder issuance
	* Measure Weight with Simulink		* Measure Weight with Simulink
	\| A \|\| ~~Done~~ \|\|		\| A \|\| 100% \|\|


Zeile 23:		Zeile 23:
	* Add button like a real Weighing Scale. See chapter [[DMS_load_cell_with_measuring_amplifier_HX711AD#Requirements\|requirements]].		* Add button like a real Weighing Scale. See chapter [[DMS_load_cell_with_measuring_amplifier_HX711AD#Requirements\|requirements]].
	* Document progress within your [[DMS_load_cell_with_measuring_amplifier_HX711AD\|article]].		* Document progress within your [[DMS_load_cell_with_measuring_amplifier_HX711AD\|article]].
	\|\| A \|\| ~~Done~~ \|\|		\|\| A \|\| 100% \|\|
	*On/Off button logic implemented (Arduino complete, Simulink partial).		*On/Off button logic implemented (Arduino complete, Simulink partial).
	* Simulink model saved to SVN.		* Simulink model saved to SVN.
Zeile 35:		Zeile 35:
	* Use the LCD-Display and order an I2C-Segment-Display (A).		* Use the LCD-Display and order an I2C-Segment-Display (A).
	* Meet all the [[DMS_load_cell_with_measuring_amplifier_HX711AD#Requirements\|requirements]] (B).		* Meet all the [[DMS_load_cell_with_measuring_amplifier_HX711AD#Requirements\|requirements]] (B).
	\|\| A \|\| ~~Done~~ \|\|		\|\| A \|\| 100% \|\|
	*LCD display implemented in Arduino and in simulink.		*LCD display implemented in Arduino and in simulink.
	*Button added both for Tare and power button		*Button added both for Tare and power button

Onyesi-john.abiagam@stud.hshl.de am 2. Juni 2026 um 10:17 Uhr

2026-06-02T10:17:48Z

← Nächstältere Version		Version vom 2. Juni 2026, 10:17 Uhr
Zeile 163:		Zeile 163:
	## Calculate the remaining relative error and display it over the range with MATLAB.		## Calculate the remaining relative error and display it over the range with MATLAB.
	\|\| A \|\| Done \|\|		\|\| A \|\| Done \|\|
			* Done MATLAB Onramp course
			* learnt Regression Analysis
			* Learnt how to calculate a relative error
	* The Constant across the value range is calculated using nonlinear regression		* The Constant across the value range is calculated using nonlinear regression
	* A function is implemented to calculate real value from luxmeter measurement		* A function is implemented to calculate real value from luxmeter measurement

Onyesi-john.abiagam@stud.hshl.de am 1. Juni 2026 um 14:09 Uhr

2026-06-01T14:09:30Z

← Nächstältere Version		Version vom 1. Juni 2026, 14:09 Uhr
Zeile 162:		Zeile 162:
	## Go to the light-lab and validate the measurement over the range.		## Go to the light-lab and validate the measurement over the range.
	## Calculate the remaining relative error and display it over the range with MATLAB.		## Calculate the remaining relative error and display it over the range with MATLAB.
	\|\| A \|\| ~~In Progress~~ \|\|		\|\| A \|\| Done \|\|
	* The Constant across the value range is calculated using nonlinear regression		* The Constant across the value range is calculated using nonlinear regression
	* A function is implemented to calculate real value from luxmeter measurement		* A function is implemented to calculate real value from luxmeter measurement

Onyesi-john.abiagam@stud.hshl.de am 31. Mai 2026 um 17:29 Uhr

2026-05-31T17:29:12Z

← Nächstältere Version		Version vom 31. Mai 2026, 17:29 Uhr
Zeile 173:		Zeile 173:
	* Consequently, a unique relationship between the laboratory reference lux meter or even LX-1108 and the VEML7700 sensor cannot be established without first specifying the gain and integration-time configuration.		* Consequently, a unique relationship between the laboratory reference lux meter or even LX-1108 and the VEML7700 sensor cannot be established without first specifying the gain and integration-time configuration.
	* The same reference lux value either from the Lab reference or the LX-1108 may produce different ALS readings under different gain and integration-time settings and finally the lux value calculated from it.		* The same reference lux value either from the Lab reference or the LX-1108 may produce different ALS readings under different gain and integration-time settings and finally the lux value calculated from it.
	* Therefore, any reference-to-ALS-to-lux relationship derived for the VEML7700 is valid only for the specific gain and integration-time configuration used during calibration, it can not be a ~~generally~~ function for correcting ALS.		* Therefore, any reference-to-ALS-to-lux relationship derived for the VEML7700 is valid only for the specific gain and integration-time configuration used during calibration, it can not be a general function for correcting ALS.The AlS value is completely dependent on the Gain and Integration Time.
	* The VEML7700 implementation codes in arduino already includes a function that automatically selects the optimal gain and integration-time combination for any ~~current~~ current light level according ~~to the~~ documentation.		* The VEML7700 implementation codes in arduino already includes a function that automatically selects the optimal gain and integration-time combination for any current light level according VISHAY documentation.
	* Therefore, the gain and integration-time optimization requested in the subsequent tasks is handled dynamically within the Arduino implementation code before the lux calculation and validation.		* Therefore, the gain and integration-time optimization requested in the subsequent tasks is handled dynamically within the Arduino implementation code before the lux calculation and validation.

	\|}		\|}

Onyesi-john.abiagam@stud.hshl.de am 31. Mai 2026 um 06:31 Uhr

2026-05-31T06:31:30Z

@@ Zeile 167: / Zeile 167: @@
 * The LX measurement is corrected
 * The Corrected array values is saved in a .mat file
 |}

Onyesi-john.abiagam@stud.hshl.de am 19. Mai 2026 um 08:28 Uhr

2026-05-19T08:28:18Z

← Nächstältere Version		Version vom 19. Mai 2026, 08:28 Uhr
Zeile 162:		Zeile 162:
	## Go to the light-lab and validate the measurement over the range.		## Go to the light-lab and validate the measurement over the range.
	## Calculate the remaining relative error and display it over the range with MATLAB.		## Calculate the remaining relative error and display it over the range with MATLAB.
	\|\| A \|\| \|\|		\|\| A \|\| In Progress \|\|
			* The Constant across the value range is calculated using nonlinear regression
			* A function is implemented to calculate real value from luxmeter measurement
			* The LX measurement is corrected
			* The Corrected array values is saved in a .mat file
	\|}		\|}

Ulrich.schneider@hshl.de am 14. Mai 2026 um 10:51 Uhr

2026-05-14T10:51:45Z

@@ Zeile 142: / Zeile 142: @@
 * Plot already done
 * Regression used for the data
 |}

Onyesi-john.abiagam@stud.hshl.de am 13. Mai 2026 um 10:18 Uhr

2026-05-13T10:18:54Z

← Nächstältere Version		Version vom 13. Mai 2026, 10:18 Uhr
Zeile 135:		Zeile 135:
	# Discuss the results with Prof. Schneider.		# Discuss the results with Prof. Schneider.
	# Fit the data with a curve/regression (<code>Curve Fitter</code>).		# Fit the data with a curve/regression (<code>Curve Fitter</code>).
	\|\| A \|\| \|\|		\|\| A \|\| Done \|\|
			* The Luxmeter has been referenced in the lab
			* The Measurement range divided into 21 measurements
			* Measured readings written to a MATLAB array
			* Arrays saved to reference.mat file
			* Plot already done
			* Regression used for the data
	\|}		\|}

Ulrich.schneider@hshl.de am 12. Mai 2026 um 14:54 Uhr

2026-05-12T14:54:01Z

← Nächstältere Version		Version vom 12. Mai 2026, 14:54 Uhr
Zeile 128:		Zeile 128:
	* Start with 1.		* Start with 1.
	# '''Reference the Luxmeter LX-1108 in the Lab L3.1-E01-130.'''		# '''Reference the Luxmeter LX-1108 in the Lab L3.1-E01-130.'''
	# ~~Diskuss~~ the results with Prof. Schneider.		# Devide the measurement range into 23 measurements e.g. <code>Ref = [0 300 600 900 1000 2000 3000 4000 5000 6000 7000 9000 10000 11000 12000 13000 14000 15000 16000 16000 18000 19000 20000]</code> Lux.
	\|\| A \|\| ~~In Progress~~ \|\|		# Tune the Lamp so the reference Sensor measures them.
			# Measure with the Luxmeter LX-1108 an write the results to a MATLAB array <code>LX = [0 .. 20k]</code> Lux
			# Save the arrays in <code>reference.mat</code>.
			# Plot the reference on x-axis and LX on y-Axis.
			# Discuss the results with Prof. Schneider.
			# Fit the data with a curve/regression (<code>Curve Fitter</code>).
			\|\| A \|\| \|\|
	\|}		\|}