ESP8266 Community Forum

- Thu Dec 20, 2018 5:51 am #79654 Need to convert TTL to Wifi.
For the same, designing an opto isolated ciruit from TTL to Wifi.
I need to confirm that the maximum source, sink capacity of RXD and TXD pins of the ESP8266 module is 12mA or any other
Also, would like to know the typical value of the same.

- Fri Mar 08, 2019 6:11 am #80954 I think 12 mA is a safe assumption. IIRC it's even something like 35 mA.