Sniffer

-- Initialize Rednet on the modem side
rednet.open("back") -- Ensure this matches the side your modem is on

print("Starting Rednet sniffer...")
print("Listening for devices...\n")

-- Store known devices
local knownDevices = {}

while true do
    -- Broadcast a request to all devices
    rednet.broadcast("Who's there?")

    -- Wait for responses
    local startTime = os.clock() -- Record the start time
    while os.clock() - startTime < 5 do -- Wait for 5 seconds for responses
        local senderId, message = rednet.receive(5) -- Wait up to 5 seconds for a response
        if senderId then
            -- Check if the device is already known
            if not knownDevices[senderId] then
                knownDevices[senderId] = true
                print("\n--- New Device Detected ---")
                print("Device ID: " .. senderId)
                print("Message: " .. tostring(message))
                print("----------------------------")
            end
        end
    end

    -- Optional: Delay between broadcasts
    sleep(5) -- Adjust this value for the frequency of broadcasts
end