From d589654a5b8e15b3e03378b596d0703eba62a087 Mon Sep 17 00:00:00 2001 From: Kuba <132459354+KubaPro010@users.noreply.github.com> Date: Thu, 21 Mar 2024 16:46:24 +0100 Subject: [PATCH] add that --- README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/README.md b/README.md index e208121..f54c228 100644 --- a/README.md +++ b/README.md @@ -56,7 +56,7 @@ you wanna update? sure, just run `./compile.sh` if you have a error type in `chm Plug a wire on GPIO 4, means Pin 7 of the GPIO header ([header P1](http://elinux.org/RPi_Low-level_peripherals#General_Purpose_Input.2FOutput_.28GPIO.29)). This acts as the antenna. The optimal length of the wire depends the frequency you want to transmit on, but it works with a few centimeters for local testing. (Use https://www.southwestantennas.com/calculator/antenna-wavelength to calculate the lenght, make sure to use the 1/4 wave setting, as for 1/2 wave you'd need a impedance transformator, and these are not cheap [also yes, i learned it the hard way after having to cut my antenna]) -# Hardware (detailed compatibility +# Hardware (detailed compatibility) It definitly works on a RPI 3 A+, as im testing this program on it, ive used it on a pi 400, it sometimes works with no problem, but sometime it just crashes, possible cause can be this: "the rpi swtiches the gpio pin so fast it cant tell it states, for example if its 0.5 instead of high or low, whats next?" but, that just a theory, A ELECTRONIC THEORY # How to use it