Hi David,
I have made some progress, purchased the 74HC245 and 74HC595 chips and
breadboarded the circuit you supplied. I have two questions which I would
appreciate answers to:
1. Your diagram shows lines LD,SCK, and MOSI on the lower 74AC595 and LD,
and SCK on the upper
Speaking of power supplies, I've been running a few experiments using HVAC
24VAC transformers. I choice this type of device, since almost all Radio
Shack stores have closed, since 2015. I still have one near me, in
Tehachapi, CA (a franchise). Also, in recent months, the Fry's chain is
clearly
Great idea, looks really nice!
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That sounds quite complicated, thanks for sharing!
Am Mittwoch, 6. November 2019 13:53:33 UTC+1 schrieb Mitch:
>
>
> Higher current displays can be driven indirectly using the HT16K33. Just
> use a ULN2803 (and a 74HC04 on the input to invert) on the low side, and
> two TBD62783s on the
