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How to enable I2C

833 bytes added, 16:39, 24 July 2023
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The Raspberry Pi will reboot and the 'i2c' interface will be enabled.
 
 
Then run the following command to check i2c port
sudo i2cdetect -y 1
 
The following is the I2C address of [[X729]]
<pre>
pi@raspberrypi:~ $ sudo i2cdetect -y 1
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- 36 -- -- -- -- -- 3c -- -- --
40: 40 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- 68 -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
</pre>
<pre>
#36 - the address of the battery fuel gauging chip
#3c - OLED display
#40 - TI INA219 12-bit current/voltage/power monitor
#68 - the address of the RTC chip
</pre>
 
PS: Different hardware products may have different I2C addresses
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[[Category:Raspberry pi]]
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