Two of my customers have asked for nwts compatibility with Dutchtronix AVR Scope Clock.
Both Chuck and Bob had good results and have sent me their experience interconnecting both devices.
I have nwts configured for RS232 polarity, 4800 baud for compatibility with other clocks in the house.
Connected to AVR clock with jumpers to nwts for power, ground and RS232 data as shown below. I could have used a different post on the AVR clock pcb for TTL polarity data and an AVR clock menu option allows the user to select serial baud rate. No problem with the AVR clock adapting to different nwts settings! Good instructions in the AVR clock FAQ to lead a user through this.
Orange: +5 VDC
White: RS232 polarity data to the AVR clock
Chuck reported some initial troubles, but seems that it is all working correctly now, as there were no other reported problems:
[...] the two units seem to be getting along with each other. I see every now and then the 'scope clock indicates that the time is being corrected. The 'scope clock did a poor job of keeping time before adding the nwts unit. [...] I am powering your device using the regulated 5 volts available on the AVR Scope Clock. Works, but a heat sink must be attached to the regulator.
I'm very happy I can add another "non-nixie" clock to the list of supported clocks. All of this thanks to both Chuck and Bob!