I noticed mobile traffic lights (http://www.berghaus-verkehrstechnik.com/home/) in nearby bridge construction site.

RTL-SDR & SDR#


Audio sample: https://vocaroo.com/i/s07yWmFnw4F2

Universal radio hacker sniffed protocol and logged data for further examination


Some analysis of the traffic lights radiomodem with Arduino Uno & Semtech SX1278
(https://teknokoodiradio.vuodatus.net/lue/2017/12/sx1278-fsk-ook-packet-mode-raw-data-out)

Universal Radio Hacker plain bits files (txt) conversion to decimal values with T-SQL

declare @log_data table
(
    dat varchar(max)
)

declare @dat varchar(max) = ''
declare @dat_dec varbinary(max) = 0
declare @n int = 1
declare @l int
declare @b int
declare @i int
declare @val_b varbinary(1) = 0

insert into @log_data
(dat)
select * from openrowset(bulk 'C:\User\data430nrzi.txt', single_clob) AS Doc
select @dat = dat from @log_data

set @l = len(@dat)

while @n <= @l
begin
    set @b = 8
    set @val_b = 0
    set @i = 0
    while (@b > 0)
    begin
        if (substring(@dat, @n + @i, 1) = '1')
        begin
            set @val_b = @val_b + POWER(2, @b - 1)
        end
        set @b = @b - 1
        set @i = @i + 1
    end
    set @dat_dec = @dat_dec + @val_b
    set @n = @n + 8
end
select @dat_dec