Programmable calculator on Pico DIY

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zeitfest Guru Joined: 31/07/2019 Location: Australia Posts: 655	Posted: 02:44pm 15 Jun 2024       [After a slight diversion chasing a bug in parsing "negate" inputs     ] It is now using a separate display,  using a tft lcd driven with a arduino/genuino, so the combo display + keypad functions as a simple terminal driven via standard I2C.  It should be more equipment-agnostic than being locked in to particular displays. Polling the RTC continuously to check for timing bogged down the I2C a bit, so it disabled during development, but it can be refreshed as a background.