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I2C: Fix doc about pull-up,

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Closes https://github.com/espressif/esp-idf/issues/9791
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Cao Sen Miao
2023-01-04 12:28:20 +08:00
parent 467356cfcd
commit dfa78f244e
1 changed files with 1 additions and 1 deletions
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examples/peripherals/i2c/i2c_tools/README.md
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@@ -37,7 +37,7 @@ To run this example, you should have any ESP32, ESP32-S and ESP32-C based develo
| ESP32-H4 I2C Master | GPIO5 | GPIO6 | GND | GND | 3.3V |
| Sensor | SDA | SCL | GND | WAK | VCC |
**Note: ** There’s no need to add an external pull-up resistors for SDA/SCL pin, because the driver will enable the internal pull-up resistors itself.
**Note:** It is recommended to add external pull-up resistors for SDA/SCL pins to make the communication more stable, though the driver will enable internal pull-up resistors.
### Configure the project