Recent posts to I2C muxing libraryhttps://forge.codesys.com/forge/talk/Runtime/thread/cf2a5e721b/2020-07-20T16:25:35.472000ZRecent posts to I2C muxing libraryI2C muxing library2020-07-20T16:25:35.472000Z2020-07-20T16:25:35.472000ZFabioPDhttps://forge.codesys.com/u/fabiopd/https://forge.codesys.com0ac7f093bdc8374b025d1d126f1d7abc15e37b59<div class="markdown_content"><p>Hello Stafan<br/>
I have to use TCA9548 with 2 SHT21.. What aI have to do to configure it? <br/>
I tried to set 1 slave, changed ID from 0x77 to 0x70. <br/>
But How to read my slaves? thank you </p></div>I2C muxing library2020-02-27T15:50:28.552000Z2020-02-27T15:50:28.552000ZAnonymoushttps://forge.codesys.com/u/*anonymous/https://forge.codesys.comf76bed1af0d4e56ef2016c544859bb53546e2809<div class="markdown_content"><p><em>Originally created by:</em> PhilouG</p>
<p>Hello,<br/>
I'm using Codesys V3.5 SP15 patch3 with a raspberry pi.<br/>
I have installed the OSCAT basic and building package, the I2C MUX library and the BME280.xml.<br/>
I have a message error : the library « #CommonTypsFunctions » can't be opened.<br/>
Can you help me?<br/>
Best regards<br/>
Philippe</p></div>I2C muxing library2020-02-27T15:50:26.467000Z2020-02-27T15:50:26.467000ZStefan2https://forge.codesys.com/u/stefan2/https://forge.codesys.comb5bac89b7e9f36234267542de520635feeb99493<div class="markdown_content"><p>Hi,</p>
<p>forgot the xml's</p>
<p>Greetings</p>
<p><a class="" href="https://forum.codesys.com//download/file.php?id=3150" rel="nofollow">xml devices.zip <span><span>[18.38 KiB]</span></span></a></p></div>I2C muxing library2020-02-27T15:50:25.713000Z2020-02-27T15:50:25.713000ZStefan2https://forge.codesys.com/u/stefan2/https://forge.codesys.com73f0aa16df88884fb1cef9ea243d90b439fbd8d0<div class="markdown_content"><p><span style="color: #FF0000;">3S Moderator: </span><br/>
thanks for sharing this added to CODESYS V3 Raspberry Pi share your devices & libraries & applications<br/>
l <a class="" href="https://forum.codesys.com/viewtopic.php?f=23&t=5872&x=18200&p=19664&lan=en" rel="nofollow">viewtopic.php?f=23&t=5872&p=18200#p19664</a> l </p>
<p>Hello,</p>
<p>Here is my Library for some I2C devices for CODESYS.<br/>
You can place all devices behind a multiplexer to reduce address conflicts.<br/>
Although include the BME280 Environment sensor and an SD1306 Display Driver.<br/>
Look at google for these little funny Displays.<br/>
All fonts are working on the display, but not the biggest. There the bits have to be twisted.<br/>
If you find any problems, tell me, the Drives have not been tested all.</p>
<p>Don't look at the documentation, there is none ... .</p>
<p>In the I2C_Base FB I did write some info’s for the muxing.</p>
<p>With the muxing IC you can connect about 33554432 BME280 on the raspi, but then bus cycle time is no longer a problem .</p>
<p>You will need the OSCAT building lib to compile. i can not uplode it here like the OSCAT BASIC lib(to big), so try the lib from the store.</p>
<p>Device list:</p>
<p>BME280<br/>
25C512 64KiB EEPROM<br/>
An 4channel dimmer (I done this for an friend)<br/>
PCA9555 as 16 bit input<br/>
PCA9555 as 16 bit output<br/>
PCA9685 a 16 channel 12bit PWM output, inspired by example code of CODESYS but writes only when output value is changing<br/>
PCF8575 as 16 bit input<br/>
PCF8575 as 16 bit output<br/>
SSD1306 Display Driver<br/>
TCA9548 8 channel I2C Multiplexer/switch<br/>
TSL2561 lux sensor, state I would say experimental</p>
<p>Greetings Stefan</p>
<p><a class="" href="https://forum.codesys.com//download/file.php?id=3188" rel="nofollow">xml devices.zip <span><span>[18.38 KiB]</span></span></a></p>
<p><a class="" href="https://forum.codesys.com//download/file.php?id=3149" rel="nofollow">Raspberry I2C MUX.projectarchive <span><span>[388.84 KiB]</span></span></a></p>
<p><a class="" href="https://forum.codesys.com//download/file.php?id=3148" rel="nofollow">BASIC.projectarchive <span><span>[398.68 KiB]</span></span></a></p></div>