coffee-grinder-timer
说明： 基于Arduino Nano的咖啡研磨机计时器（Mazzer Super Jolly），带ST7735显示器和旋转编码器。
(Arduino Nano based timer for a coffee grinder (Mazzer Super Jolly) with ST7735 display and rotary encoder.)
(Arduino Nano based timer for a coffee grinder (Mazzer Super Jolly) with ST7735 display and rotary encoder.)
文件列表:
platformio.ini (187, 2020-04-22)
src/ (0, 2020-04-22)
src/display.h (11607, 2020-04-22)
src/main.cpp (9444, 2020-04-22)
src/ (0, 2020-04-22)
src/display.h (11607, 2020-04-22)
src/main.cpp (9444, 2020-04-22)
# Coffee Grinder Timer
The project was started when I bought a used Mazzer Super Jolly and wanted to mod it and control it based on time. I removed the doser from the grinder, added a funnel, had the grinder repainted, and started working on this project.
The project is built in Visual Studio Code.
*(click to play video)*
## Parts list
- Arduino Nano
- ST7735 1.8" TFT (https://www.ebay.co.uk/itm/191786659555)
- Rotary encoder w. click (Something like https://www.elextra.dk/details/H35684/rotary-encoder-18-trin-m-trykknap-funktion)
- Relay(s) (*I don't really know much about relays and am still experimenting with this. When I originally started this project I did [this drawing for my Mazzer Super Jolly](http://coffee.larsenpedersen.com/mazzersuperjolly/wiringdiagram-relay.png), so perhaps two relays are needed.*)
- Possibly some sort of power supply
## Pins
**Connection between ST7735 and Arduino Nano**
- VCC 5V
- GND GND
- CS D10
- RESET D8
- A0 / DC D9
- SDA D11
- SCK D13
- LED 3V3
**Connection between rotary encoder and Arduino Nano**
- Rotary envoder pin 1 A0
- Rotary envoder pin 2 GND
- Rotary envoder pin 3 A1
- Button pin 1 A2
- Button pin 2 GND
**Connection between relay and Arduino Nano**
*These specifications are speculations as I currently don't have a relay hooked up - but it should be [fairly simpel](https://lastminuteengineers.com/one-channel-relay-module-arduino-tutorial/):*
- GND GND
- VCC 5V
- IN D2
## Interface
Everything is controls by either turning (Turn), clicking (Click) or holding (Hold (∞)) / holding+releasing (Hold (2s)+R) the rotary encoder:
**General**
- Turn to pick one of the following grinding options:
- **Manual grinding**
- Hold (∞) to grind
- **Single grinding**
- Click to start grinding
- Click to cancel grinding
- Hold (2s)+R to enter settings:
- Turn to change time
- Click to save settings
- Hold (2s)+R to exit settings without saving
- **Double grinding**
- Click to start grinding
- Click to cancel grinding
- Hold (2s)+R to enter settings:
- Turn to change time
- Click to save settings
- Hold (2s)+R to exit settings without saving
*(click to play video)*
## Parts list
- Arduino Nano
- ST7735 1.8" TFT (https://www.ebay.co.uk/itm/191786659555)
- Rotary encoder w. click (Something like https://www.elextra.dk/details/H35684/rotary-encoder-18-trin-m-trykknap-funktion)
- Relay(s) (*I don't really know much about relays and am still experimenting with this. When I originally started this project I did [this drawing for my Mazzer Super Jolly](http://coffee.larsenpedersen.com/mazzersuperjolly/wiringdiagram-relay.png), so perhaps two relays are needed.*)
- Possibly some sort of power supply
## Pins
**Connection between ST7735 and Arduino Nano**
- VCC 5V
- GND GND
- CS D10
- RESET D8
- A0 / DC D9
- SDA D11
- SCK D13
- LED 3V3
**Connection between rotary encoder and Arduino Nano**
- Rotary envoder pin 1 A0
- Rotary envoder pin 2 GND
- Rotary envoder pin 3 A1
- Button pin 1 A2
- Button pin 2 GND
**Connection between relay and Arduino Nano**
*These specifications are speculations as I currently don't have a relay hooked up - but it should be [fairly simpel](https://lastminuteengineers.com/one-channel-relay-module-arduino-tutorial/):*
- GND GND
- VCC 5V
- IN D2
## Interface
Everything is controls by either turning (Turn), clicking (Click) or holding (Hold (∞)) / holding+releasing (Hold (2s)+R) the rotary encoder:
**General**
- Turn to pick one of the following grinding options:
- **Manual grinding**
- Hold (∞) to grind
- **Single grinding**
- Click to start grinding
- Click to cancel grinding
- Hold (2s)+R to enter settings:
- Turn to change time
- Click to save settings
- Hold (2s)+R to exit settings without saving
- **Double grinding**
- Click to start grinding
- Click to cancel grinding
- Hold (2s)+R to enter settings:
- Turn to change time
- Click to save settings
- Hold (2s)+R to exit settings without saving
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