Dave Anderson on Nostr: Like, display a hex digit on a 7-segment display for example. Back in the day: grab a ...
Like, display a hex digit on a 7-segment display for example.
Back in the day: grab a 7-segment decoder IC with 4 bits in, 7+1 drive lines out, done. Cheap, common, easy.
Today, if you're being normal: grab any old Cortex M0 micro and just bit-bang the display module directly. Maybe through a port expander or, if you're really fancy, a 7-segment driver IC that speaks I2C and runs like a dozen digits at once, with dot support and like 4 bonus GPIOs on the side because the package had free pins.
Back in the day: grab a 7-segment decoder IC with 4 bits in, 7+1 drive lines out, done. Cheap, common, easy.
Today, if you're being normal: grab any old Cortex M0 micro and just bit-bang the display module directly. Maybe through a port expander or, if you're really fancy, a 7-segment driver IC that speaks I2C and runs like a dozen digits at once, with dot support and like 4 bonus GPIOs on the side because the package had free pins.