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typo fix

Gennaro Tortone 2018-05-17 14:28:32 +02:00
parent d44fc7dd29
commit 208813b221
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Expanding-4CH.md

@ -14,7 +14,7 @@ The schematic reports that 2.5 mm jack is configured as following (jack on right
3.3V and GND are very welcome for sensors expansions but GPIO7 and GPIO8 are not usable because they are used internally by ESP8285 for flash memory connection (sigh!)
R35 and R36 resistors are not soldered on Sonoff 4CH PCB and it is possible to use their pads to "manually route" the jack contact on another ESP2855 pin (!). I selected R35 pad because my "waterproof" DS18B20 sensors provide signal line on TEM1 jack contact.
R35 and R36 resistors are not soldered on Sonoff 4CH PCB and it is possible to use their pads to "manually route" the jack contact on another ESP8285 pin (!). I selected R35 pad because my "waterproof" DS18B20 sensors provide signal line on TEM1 jack contact.
For ESP8285 pin I prefer IO2 that is already available on header programming pins...
Then the route to do is: TEM1 -> R35 pad -> GPIO2: