Add comment about GpioModeAnalog

2023-07-01 09:42:13 -05:00 · 2023-07-01 09:42:13 -05:00 · 3f9554fb07
commit 3f9554fb07
parent 5c5333e55e
1 changed files with 7 additions and 1 deletions
--- a/gpio/gpio_blink/README.md
+++ b/gpio/gpio_blink/README.md
@ -41,4 +41,10 @@ Run the application and the LED should start blinking.  Hold the back button to
 - We loop if the back button is not currently pressed.
  ```c
  while(furi_hal_gpio_read(pin_back))
-  ```
+  ```
+
+- Typically when a pin is no longer in use, it is set to analog mode.  This causes the pin to be a floating input.
+  ```c
+  furi_hal_gpio_init_simple(pin_led, GpioModeAnalog);
+  ```
+