[sudo-discuss] arduino logic lever shifter 5v-3.3v for esp8266

[Jake]

only necessary for i2c, not serial or even spi

On Fri, 5 Feb 2016, hol at gaskill.com wrote:

> these are cheap and easy to use https://www.adafruit.com/products/757
> 
> 
> On 2016-02-05 11:44, robb wrote:
>
>       i've discovered 5v (arduino) to 3.3v (esp8266) serial
>       requires a logic level shifter.
> i have a max3243 with no idea how to use it.
> 
> anyone know how to use a Multichannel RS-232 Line Driver/Receiver
> or
> know a good circuit schematic that converts 5v-3.3v logic?
> 
> thx
> ~r
> 
> _______________________________________________
> sudo-discuss mailing list
> sudo-discuss at lists.sudoroom.org
> https://sudoroom.org/lists/listinfo/sudo-discuss
> 
> 
>