I’m glad you found it useful, it’s the reason I spend time on these things.Hi, thanks for your review of this chip and the little board (LD06AJSA). I am new to this forum, hence I thank for your understanding the way I formulate my questions.
This should be with the wiper rotated all the way counterclockwise. The 0Ω would be from the wiper pin (center) to the left pin (pin 1).1. Trimpot: According to the instructions of the board the little trimpot in the corner of the board should be adjusted to 0 Ohm. At what points should the resistance measured?
This isn’t pushing the 1500mA limit very far, but it would certainly work.2. Test 1: I used this board with success using a CR2450 battery as power source and an white indicator LED. This LED consumes a current of about 2 mA when brightly lit. I used an Arduino Uno R3 board to control the LED's intensity via the CE input of the board using a PWM pin (3). The intensity could be controlled within a range of intensities that I measured with an ambient light intensity sensor.
But of course it’s a lot more complex and costly.3. Test 2: I tested PWM controlling of this LED in another arrangement, too, using a DPS5005-CC/CV Power Supply and a PWM-capable Pulse Generator. The advantage of this setup was that I could control the range of light intensities across PWM control worked the best by adjusting the voltage output of the Power Supply. Within this range where both intensities and dynamic range could be optimized the power supply worked in CC mode.
It’s hard to say what the problem was with so little information. My first impulse would be to check that the 0V (ground) pin on the driver board has a connection to the Arduino. But aside from that, I need an as built schematic or wiring diagram—or better yet a clear photo—to even start to troubleshoot things.4. Test 3: Then I returned to using the LD06AJSA board with PS5005-CC/CV Power Supply as power source and PWM-control by Arduino Uno R3 via the CE PWM control pin of the LD06AJSA board. Unfortunately, the intensity control of the LED could not be worked out. At this point I would much appreciate any advice in trouble shooting of this problem.
Thanks for noting the transposition. It’s fixed.
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