MSF and synchronisation pulses? Some ramblings.
Ref.
http://www.npl.co.uk/upload/pdf/MSF_Time_Date_Code.pdf
For no purpose, other than interest, I hacked a radio controlled clock.
With care, the clock should still work perfectly.
Grounded the PON connection, and took two wires from
PON/gnd and the RF pin.
Amplified the signal using an LM324. (Gain ~15)
Picaxe Input 0 to clock. Output 1 to an LED.
Checking against another R/C clock, over 3 hours,
w0 was measured as 10801.
Obviously, the code can be improved and modified.
The ~600ms of “slack” time could easily be utilised.
Possible uses?
IR / 433 output, which might be used for:
Synchronising fireflies.
Class experiments.
Time dependent “wake-up” triggers for data collection,
using networked picaxes.
Might be useful? If not, I've still learnt something new.
Ref.
http://www.npl.co.uk/upload/pdf/MSF_Time_Date_Code.pdf
For no purpose, other than interest, I hacked a radio controlled clock.
With care, the clock should still work perfectly.
Grounded the PON connection, and took two wires from
PON/gnd and the RF pin.
Amplified the signal using an LM324. (Gain ~15)
Picaxe Input 0 to clock. Output 1 to an LED.
Code:
#picaxe 28x1
symbol ticker = w0
main:
if pin0 = 0 then
ticker = ticker +1
high 1
sertxd (#ticker," ")
pause 50
low 1
pause 600
endif
goto mainw0 was measured as 10801.
Obviously, the code can be improved and modified.
The ~600ms of “slack” time could easily be utilised.
Possible uses?
IR / 433 output, which might be used for:
Synchronising fireflies.
Class experiments.
Time dependent “wake-up” triggers for data collection,
using networked picaxes.
Might be useful? If not, I've still learnt something new.
