[AT_switch] checker

------ PARAMS ------
TABLE_SIDE = 'top'
MODEM_SIDE = 'left'
function check(periph)
    return periph.isActive()
end
------- END --------

function main()
    rednet.open(MODEM_SIDE)
    rednet.host('switch_check','checker')

    periph = peripheral.wrap(TABLE_SIDE)

    while true do
        evt,snd,mess = os.pullEvent('rednet_message')
        if(type(mess) == 'string') then
            mess = textutils.unserialize(mess)
        end

        if(mess.type == 'check') then
            rednet.send(snd, { type='status', status = check(periph) } )
        end
    end
end
main()