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Hi I have found it

Thanks to this page (hard to find)
https://www.flowcode.co.uk/wiki/index.p ... Properties

I needed this:
ADCValue >= 70

Hi,

I'm trying to make the following:

When it gets dark in the evening, the LEDs should flash until it gets light again in the morning. This is done via an LDR.
I've got it pretty much working, but not completely.

The LEDs only flash once, which makes sense because the Loop stops. So something ...

Many thanks for all the help! I appreciate this very much.

There is one more thing I would like to see in the flowchart. I can't think of this.

It would be nice if the LDR could be read once per minute and the average value calculated within a period of, say, five minutes. This value then goes to ...

Hi,

I have done it by this way. I will use CO, C1, C2 and C3 for PWM 1 to 4. The mosfets are also connected to these PIN's. This works great now with one mosfet on C0.

Thanks. Great information !

I don't see any changes in the posted flowchart.

I have it working now with one mosfet and via this way:
PWM1 and the mosfet ( -> LED Lamp ) are now both on C0)

Set Duty Cycle of PWM1 to ADCvalue
Wait one second
Set Duty Cycle of PWM1 to zero
Wait one second
Repeat ...

Hi chip fryer27,

I'm sorry I didn't respond, but I've started all over again. I hope you are still present in this forum. The LED Drivers work but not well enough whether it is 700mAor 1000mA. Both are not good. Technically this works well, but this is a very expensive solution.

I therefore ...

@chipfryer27:
I'm working on it. Please be patient !

The target chip is an: PIC16F18346
ADC is 10Bit

The LDR is an NORPS-12 - https://www.farnell.com/datasheets/3759787.pdf

You have my schematic and the flowchart is above in this topic.

Thanks !

Hi chip fryer27,

Thanks for your reply. The reading of the LDR will indeed be once every 2 minutes in a later flowchart. Constant reading does not make sense and will certainly affect the entire operation.

I also understand your thoughts about daylight, clouds and night. But this is also not very ...

Thank you!!

Isn't it true that in Flowcode you can reverse the reading of the LDR? Then would be nice.

The lamp must of course burn fully in daylight. When it gets dark, it should dim. From 100% to about 60%.

The LED Driver RCD-24-1.00 goes up to max 1050mA so really too much.
EDIT: 1000mA

PWM ...

I'm also looking at the RCDE-48-1.05. It has a common PIN for “PWM DIMMING AND ON/OFF CTRL”. This is half the price of the RCD-24-1.00. Recom also suggested this to me to use.

So it would be nice to be able to use this shared PIN for brightness and on and off.

I've come a bit further with this LED Driver. I started from scratch with both the schematic and the flowchart.

I am now using the RCD-24-0.70 (max 700mA) for testing. The LED lamp has a specification of 12V/940mA. So far it looks perfect. No more flickering.

I used the following ports of the LED ...

I just made a video with the LED Lamp and a LAB power supply. If I turn back the current, the lamp will burn less brightly. This without flickering.

So this could be the solution.

https://youtu.be/vrQWPdb_Jy0

I would rule out the LDR as the source of the fluctuations and replace it with a potentiometer, just in case the LDR is not providing a constant resistance.

If the flicker still exists, then I guess it's the switching of the LEDs or their drivers that is causing the issue. Maybe consider driving ...

My current code is written by Martin.
This is the last code I use.
LDR TEST - 4 PWM component.fcfx
-
These are the associated hardware schematics
2023-07-09_10-40-33.jpg
-
2023-07-09_10-54-00.jpg
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I already changed the PWM Prescaler from 16 to 1 which gives me a Frequency of 16KHz. Flickering ...

As a result of this thread, I'm going to ask the question here again.
https://www.flowcode.co.uk/mmforums/viewtopic.php?f=63&t=19023

Because I have Flowcode V8 I was advised to continue posting the question here.

The LED Lamp continues to flicker while dimming with an LDR. The LED Lamp is used for ...

Thanks. You are right. I will do this tomorrow.

Thanks for answering me. I will write tomorrow an answer. I hope you will take a look to it.

(I have Flowcode V8, so maybe this topic can move to the V8 section)

Hi,

(I have FlowCode 8 )

I will come back to this topic. I've been helped a lot but it still doesn't work properly.

This concerns four Road Safety Lights (LED 200mm) This lamps are full of lenses, so every flicker is verry noticeable.
When it starts to get dark, the lamps flicker when they are ...

Thanks chipfryer27.

I will try this next week if I can find the chip. This week í'm too bussy with other things. Sorry

Thanks,

But I need a .fcfx so that I can see what chip is used and how you program it. I need a start

Frank

I have a SK6812 RGBW LED strip 5M and 300 LEDs.

I want to use this strip with two PIR sensors and must only work when it gets darker.
Does anyone has a working .fcfx file for this LED strip ?

Thanks,

Frank

I have tried to add two toggle switches (standard one in FlowCode) but this also didn’t work for me. Is it possible that the FlowCode team can make a momentary toggle switch component as this:

SPDT (On)-Off-(On)
https://nl.farnell.com/2128040

Hi Martin,

Many thanks for this 32MHz and 4x PLL idea. Indeed the buttons are reacting much more faster.

There is only one last problem what I have in this code. That is about the manual switch.

The Manual Operation Switch must be a Manual Operation Switch. This switch is a momentary toggle ...

Hi Martin,

I have taken your code from the LTRS 15 into my code. Now the total code is running very slow on hardware. I have disabled the decision “ResultFloat > 7.49” and it makes no difference.

So, the slow running comes from the Component Macro “ResultFloat… “ and the Calculation icon ...