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Revision 9 (Frédéric Blanc, 2024-11-07 08:49) → Revision 10/40 (Frédéric Blanc, 2024-11-07 11:00)

h1. Wiki 

 {{toc}} 

 h2. USB <-> I2C 

 !clipboard-202411051457-ujwet.png! 
 Passerelle USB-I2C SiLabs CP2112 

 h3. Commande Linux 

 i2c-tools 
 <pre><code class="shell"> 
 sudo apt install i2c-tools 
 </code></pre> 

 <pre><code class="shell"> 
 i2cdetect -l 
 </code></pre> 
 !clipboard-202411051520-zo9bt.png! 

 <pre><code class="shell"> 
 i2cdetect -r -y N 
 </code></pre> 
 N numero I2C ici 5 
 !clipboard-202411051525-mfhc4.png! 
 detection d'une puce I2C PCF8563 @ 0x51 

 https://www.acmesystems.it/i2c 
 https://www.youtube.com/watch?v=QwlqOTDAPfk 

 h2. Composants 

 h3. PCF8563 Real-time clock/calendar 

 !clipboard-202411071057-aw2q3.png! 

 h3. TCA9535 I/O Expander 16-Bit 

 Low-Voltage 16-Bit I2C and SMBus Low-Power I/O Expander with Interrupt Output and Configuration Registers 

 !clipboard-202411071059-exmd3.png!