- Mega 2560 Board
- 4X4 keypad ,based on this tutorial: https://www.circuitbasics.com/how-to-set-up-a-keypad-on-an-arduino/
- ICC 16 X2 Screen, based on this tutorial: https://www.makerguides.com/character-i2c-lcd-arduino-tutorial/
- AUX pin with wire ending (Choose Red and ground)
.ino file is the arduino script A suitable case that fits on top of a small plastic box
Colour is up to the implementer, of course.
| Keypad Pin | Colour | Arduino Pin |
|---|---|---|
| R1 | White | 23 |
| R2 | Grey | 25 |
| R3 | Purple | 27 |
| R4 | Blue | 29 |
| C1 | Green | 31 |
| C2 | Yellow | 33 |
| C3 | Orange | 35 |
| C4 | Brown | 37 |
| Screen Pin | Colour | Arduino Pin |
|---|---|---|
| Gnd | Black | Gnd |
| 5V | Red | 5V |
| SDA | green | SDA |
| SCL | Orange | SCL |
Picked pin 49 and ground
- A - starts entry of number of injetions. Press again to confirm.
- B - starts entry of number of Spacing (s). Press again to confirm.
- C - starts entry of number of Absorption Time (Min). Press again to confirm.
- D - starts injection with presented parameters. Press again to confirm
- At any point pressing # cancels whatever is happening
- '*' - turns screen and injection ability on
The user can edit the number of injections, the spacing between them, and the absorption time (essentially a timer at the end of the series of injection). Once everything is set, one can start injection. Between each injection a timer will appear and at the end the absorption timer will countdown in seconds.