orlopau / coffee-scale Goto Github PK

Show the progress of a pour in grams.
Helpful especially if scale is not tared correctly.
Taring should be possible when pouring.

Probably an issue with taring on boot and the averaging buffer.

Use https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/system/log.html

Ratio should be calculated based on the pours in the recipe

Additional MOSFET to switch buzzer?
Use lower R value?

After over-discharge protection triggers, bat GND and GND muste be shorted to activate the chip again. There is also an auto-wakeup version of this chip available.

When a specific weight is added, e.g. the cup, the scale should auto-tare itself.

• Add battery protection ic (S-8240A, DW01, AP9101C)
• Add TVS diode
• Add LiIon fuel gauge IC (discarded due to no availability of parts)
• Add automatic boot mode change (automatic upload) (discarded, too many external pins)
• Add RTS pin to pin header (see above)
• Replace buzzer footprint
• Tighter screw holes
• More accessible buttons
• Route out GPIO pins (?) for later additions
• Realign Boot BTN with Rotary Encoder center

Implement an Espresso mode, which shows the estimated time until a specified and configurable weight is reached, using linear regression or similar approximation methods.

Ability to choose language during firmware upgrade should be present.

When the current weight is more than the required weight at that pour stage, a double negative sign is shown instead of a positive number.

Not on every boot, but for example on every n-th boot the scale should check via WiFi if a new update is available.

When no times are given, the user must click manually. Indicate that instead of displaying 0 for time.

For exmaple in the Kasuya V60 Recipe, a user wants to be able to progress to the neext pour when all the water has drained.
Currently he has to wait until the timer expires.