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

[hol at gaskill.com]

 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 [2] 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
> 
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Links:
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[1] https://sudoroom.org/lists/listinfo/sudo-discuss
[2] http://www.ti.com/lit/ds/symlink/max3243.pdf
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