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Updated Expanding Sonoffs (markdown)

Michael Ingraham 2019-04-07 08:26:27 -04:00
parent f0e7973caa
commit bc878a6cd7
1 changed files with 4 additions and 4 deletions
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Expanding-Sonoffs.md

@ -73,9 +73,9 @@ When you switch a GPIO pin to an input and hang a long wire off of it, that wire
To fix this, there are several things you can do. To fix this, there are several things you can do.
1. add a pull-up resistor 1. add a pull-up resistor
1. add a bypass capacitor 2. add a bypass capacitor
1. shielding on the wire 3. shielding on the wire
1. use twisted pair wiring 4. use twisted pair wiring
A pull-up resistor is a resistor connected between the GPIO pin and 3.3v. The exact value of this is not critical, 4.7k is a common value to use, as is 10k. This ensures that when the switch it open, the GPIO pin will go high. A pull-up resistor is a resistor connected between the GPIO pin and 3.3v. The exact value of this is not critical, 4.7k is a common value to use, as is 10k. This ensures that when the switch it open, the GPIO pin will go high.
@ -91,7 +91,7 @@ Read here:
If the Sensor is connected, go on here: [Sensor Configuration](https://github.com/arendst/Sonoff-Tasmota/wiki/Sensor-Configuration) If the Sensor is connected, go on here: [Sensor Configuration](https://github.com/arendst/Sonoff-Tasmota/wiki/Sensor-Configuration)
# The ESP8266 - Hardware [More Info](https://tttapa.github.io/ESP8266/Chap04%20-%20Microcontroller.html) # The ESP8266 - [Hardware](https://tttapa.github.io/ESP8266/Chap04%20-%20Microcontroller.html)
## Digital I/O ## Digital I/O