Add 7bit address info (#1834)

2017-03-20 21:30:43 +01:00 · 2017-03-20 21:30:43 +01:00 · b6ef1ffee7
parent d9b3db06f6
commit b6ef1ffee7
1 changed files with 1 additions and 1 deletions
--- a/docs/en/modules/i2c.md
+++ b/docs/en/modules/i2c.md
@ -11,7 +11,7 @@ Setup I²C address and read/write mode for the next transfer.

 #### Parameters
 - `id` always 0
- `device_addr` device address
+- `device_addr` 7-bit device address, remember that [in I²C `device_addr` represents the upper 7 bits](http://www.nxp.com/documents/user_manual/UM10204.pdf#page=13) followed by a single `direction` bit
 - `direction` `i2c.TRANSMITTER` for writing mode , `i2c. RECEIVER` for reading mode

 #### Returns