Calculator 5 and Calculator 5 V2 - Works in Process!
A study of custom from the ground up python RPN calculators in landscape or portrait. Just what the world has been yearning for but doesn’t know it yet.
Features:
Pi Pico 2350 based keyboard for full customization. Omron tactile keys for that rock solid HP feeling with extra clicky sprinkled in.
Keyboard can use KMK, ZMK, or QMK firmware, dealer’s choice. Long term this would be KMK on Zephyr OS or straight ZMK out of the box
Landscape format as a nod the old HP 12, 15, and 16s, just with a much larger and 5” diagonal display (1280x720 MIPI-DSI). Portrait has a 4” square display (720x720 MIPI-DSI)
ESP32-P4 mainboard with ZephyrOS and MicroPython/CircuitPython
ESP32-C6 integrated with P4 for WiFi and BLE
Possible extras include ESP32-H2 for Zigbee and thread, LoRA, and GPS for signal hacking, in addition to a 9-axis IMU and environmental sensors
RPN calculator plus engineering calculation macros and whatever your Python heart desires
