SofronioEspressoRatioScale

Yet another ratio espresso scale
Chinese Manual: https://github.com/Sofronio/SofronioEspressoRatioScale/blob/main/Manual.md
PourOver Ratio Scale: https://github.com/Sofronio/SofronioPourOverRatioScale

Version:

v1.5

• ADD Long press "咖啡录入" to rotate display.
• FIX During minus porta filter weight mode, timer doesn't function.

v1.4

• FIX During mode chaning, timer doesn't clear to zero.

v1.3

• FIX In espresso mode, timer will auto start.

v1.2

• FIX Sample can't be changed.
• ADD During power up, press and hold "+" to set portafilter weight.
• ADD In pure scale mode, press "+" to show weight without portafilter.
• ADD Change vRef to match your MCU.

v1.1

• ADD Battery icon.

v1.0

• ADD During power up, press and hold TARE to calibrate.
• ADD During power up, press and hold INPUT to set sample.
• ADD During power up, press and hold "-" to show info.

Features:

• Pure scale
• Espresso scale
• Setting

Pure Scale

• "咖啡录入" Set coffee powder, and switch to espresso mode.
• "+" Switch between raw weight and weigh minus portafilter.
• "-" Switch between 0.1g / 0.01g
• "清零" Scale tare.

Espresso Scale

• Auto-tare negative weight.

• Auto-tare cup weight and start the timer.

• Show time stamp of the first coffee drop.

• Ratio display.

• Auto stop the timer when extraction compeleted.

• "咖啡录入" Click to start/stop/reset timer, long press to switch to pure scale.

• "+" Plus 0.1g coffee powder weight. Long press will increase faster.

• "-" Minus 0.1g coffee powder weight. Long press will decrease faster.

• "清零" Tare and stop/reset timer.

Setting

During power on, press and hold the following buttons will...

• "咖啡录入" Set scale sample number. 1 for quick respond, and 128 for stability.
• "+" Set portafilter weight.
• "-" Show version info.
• "清零" Scale recalibration, 100g weight is needed.

Library needed:

AceButton https://github.com/bxparks/AceButton
Stopwatch_RT https://github.com/RobTillaart/Stopwatch_RT
HX711_ADC https://github.com/olkal/HX711_ADC
u8g2 https://github.com/olikraus/u8g2

How to upload HEX file

Use OpenJumper™ Serial Assistant, link as below.
https://www.cnblogs.com/wind-under-the-wing/p/14686625.html