Guide Feedback - https://learn.adafruit.com/i2c-addresses/the-list

This is the guide feedback from the [I2C Addresses](https://learn.adafruit.com/i2c-addresses/the-list) guide to be considered for adding to the list.

* 0X70 range finders MB12XX
* I did not see a reference to the PCF8574/5 I2C port expanders which, amongst other things, are widely used on I2C LCD back packs. The 'A' variant of PCF8574 has a different address range which I can't remember off the top of my head.
* LSM9DS1 Address ACCELGYRO (0x6B)
* LSM9DS1 Address MAG (0x1E)
* Some of my favorite I2C Chips:
* 0x08 PCA9955B 16-channel constant current LED driver (0x08 - 0x77)
* 0x18 PCA9557 GPIO expander (0x18 - 0x1F)
* 0x32 RV-8803-C7 RTC (0x32 only)
* 0x51 PCF2127T and PCF2129T RTCs (0x51 only)
* 0x56 RV-3029-C2 RTC (0x56 only)
* Please Add NAU7802
* You forgot HMC5993 with address 0x3C
* Sensirion SCD40 and SCD41 at 0x62
* 0x30 - Adafruit NeoSlider \ (0x30 through 0x3F by using the jumpers on the back of the board)
* I have just discovered a conflict on address 0x60 between an Si1145 sensor (which you have in the list) and my random number generator ECCX08 chip on the Arduino MKR1010 board. That chip also uses the I2C protocol apparently, and is fixed to the same address 0x60. You should verify this information and add it to your list.
* You might consider adding the Honeywell HIH6130 Temperature and Humidity Sensor (see https://www.sparkfun.com/products/11295) at address 0x27.

Use the linked I2C Addresses guide as the entry point and review the proposed devices, address ranges, and the reported 0x60 conflict against reliable device documentation. Update the project’s address list with only verified entries and confirm that the guide reflects the accepted additions.

Written by the indexing model from the issue text.