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I2C
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router has some spare GPIOs available. The [[toh/tp-link/tl-mr3020|TP-Link MR3020]] has 2 unused GPIO ports at R15 and R17. Otherwi... l-up resistor between GPIO ports and 3.3V. On the MR3020 GPIO 7 would be SDA and the GPIO 29 would be SCL.... of your devices need 5V I2C bus you can use a [[http://www.hobbytronics.co.uk/mosfet-voltage-level-con... please [[.:meta:migrating|migrate]] them: * [[https://oldwiki.archive.openwrt.org/oldwiki/port.i2c]]
  • Last modified: 2024/04/10 13:49
  • by ynezz