JAPIB

Hi Thank you very much for your answer. Is there a program to drive the multiplexer.

Hello, Is there a simple example of using an I2C multiplexer (PCA9548A). I found Stefan's post but I can't find a simple example or documentation. My goal is to use the multiplexer to manage 6 or 8 analog output modules (MCP4725). Thanks in advance.

Hi Julien I think there is no property to resolve your problem. I try myself your example and it works very well, droplist is drawn under combobox. But I discovered something, the combobox must have enought place to develop the droplist. If Combobox is placed on the bottom of the page the drop list is drawn above the combobox, because it has no place to draw under it.

Hello. With CODESYS, there is no device description for Eaton PLC, or Schneider one, or no other. To program an Eaton PLC you have to use Xsoft-CODESSYS-3, a software from Eaton. You can get an evaluation version here : http://applications.eaton.eu/sdlc/?lx=11 But to download your program and use it with a real PLC you must get a licence from Eaton. CODESYS is free of charge, but many manufacturer version are paid (Eaton, Schneider, Wago, ...) BR

Thanks Ingo, I tried your stuff, but, for me , it work as all others I tried. That is to say, I get a blinking Led whatever settings I use. Finally I tried a MCP4725 chip and I get a a variation of the light intensity of my led, without flashing... 😄👍 The problem is that I can only address 2 circuits of this type on the I2C bus.😮 I noticed that most of the examples found with the PCA9685 circuit use servo motors or motors for which the notion of blinking seems not to be a problem... Or I really don't...

Hello, I'm trying to drive LEDs (intensity variations) with a raspberry, a PCA9685 module communicating by I2C. I tried the PWM examples provided with the raspberry runtime, I tried the various (very succinct) examples found on the forum, nothing works.😟 The only thing that works is to use the outputs of the PCA9685 and make them flash quickly, which shows me that my PCA9685 module is properly addressed and working. How to find relevant information about libraries, for example "Raspberry I2C AdafruitPWM"....

Hi, J think you can't read file in only one time. You have to read number by number, until you reach the end of file. Depending the way you used to write your file : 1°) If each number as the same format you can define what you want to read by the length of a number 2°) if you used a separation character, you can read character by character and concat characters into a string, until you reach the end of line or this special separating character. 3°) if you write your file with columns (Excel) you...

Hi Each time a new version of CODESYS Development System V3 arrives, I have to download this new version and some other packages as : Device Reader, Memory Tools, Package Designer, CODESYS Control for Raspberry Pi Is there a way to easily find all the new packages in the same version. Thank you in advance for your ideas