Hi All,
Looks like I am making progress on my archery timer.
I have flags se for the traffic light indicators and a pre-timer countdown prior to the start of the shoot. Then the main timer kicks in and changes the traffic lights and sounds buzzers etc.
Pulled apart the old lights that don't work anymore and found the supply regulated by a simple LM series regulator and the displays are driven by CD4511 BCD to seven segment drivers.
I will be connecting the radios next to confirm comms and then onto interfacing the transferred data into BCD to drive the displays.
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