or download this
['Speed' => [2, 'v', '%u', [ 0,1,100,0]]],#
+speed x 100 , 16 bit vax unsigned, 0 to 65535 (655.35) m/s
['Voltage' => [1, 'C', '%u', [200,1,100,0]]],#
+Voltage x100, + 2V, 8 bit char unsigned, 0 (2V) to 255 (4.55V)
['Method' => undef ],#
+0 length item for using the format for other things like building hum
+an displays