Find all the raspberry pi devices on your network really fast using multithreading in Python 3.x and find them fast.
Ok, so to compare this to just running nmap vs. findpi:
| run 1 | run 2 | run 3 | average | |
|---|---|---|---|---|
| nmap v7.80 | 6.007 total | 5.679 total | 4.633 total | 5.44 total |
| findpi v1.0.3 | 2.899 total | 2.682 total | 2.696 total | 2.76 total |
I was sick of waiting forever for the arp / nmap commands to work single-threaded.
Also, arp only works for devices you have seen previously, so you could easily miss things.
pip3 install findpi then sudo findpi use multithreading to get the job done.
NOTE: Must Use SUDO
The application asks you what ip address or range you want to select. The default tries to figure out your current network and set it as default. Examples are 192.168.1.0/24, etc. If you want to check just one ip address, you can put that in as well, like 10.2.2.113 for instance.
sudo findpi -c 32 the number at the end is the number of threads to use, with the default being 4 times whatever cores findpi discovers about your machine, will return the following:
What network do you want to check? (10.2.2.0/24):
Found pi: 10.2.2.113
Found pi: 10.2.2.117
Found pi: 10.2.2.119
Found pi: 10.2.2.137- If you se the threads too high for your system (should be a factor of number of cores) you will start to see timeout errors like the following
QUITTING! dnet: Failed to open device en0. The mitigation is to lower the number of threads or leave it at the default.