local relays = { peripheral.find("redstone_relay") }
local modem = peripheral.find("modem")
if not modem then
    print("No modem found")
    return
end

if #relays == 0 then
    print("No redstone relays found")
    return
end

for i, relay in ipairs(relays) do
    print("Activating relay " .. relay)
    relay.setOutput("top", true)
end