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@@ -90,12 +90,22 @@ Default config is created for Raspberry Pi 1.2b and PiPlot2D system and this wir
| button ok | GPIO22 | |
| button down | GPIO27 | |
## PiPlot2D
This is the PiPlot2D system based on a Raspberry Pi 1.2b, L293d Stepper motor drivers and
DC 5V 2 phases 4 wires stepper motor recovered from old DVD-roms.
Draw dimensions : 4cm x 5cm
![PiPlot2D](https://github.com/sinseman44/PyCNC/blob/l293d/.github/images/PiPlot2D.png)
### PiPlot2D HAT (Hardaware Attached on Top)
This HAT gathers all connectors for PiPlot2D system.
All three buttons and endstops are filtered with 1000nF capacitor to remove glitch detection.
An external pull-down resistor is used too for these inputs.
Contrast and luminosity of display are controlled by variable resistors.
![PiPlot2D HAT](https://github.com/sinseman44/PyCNC/blob/l293d/.github/images/PiPlot2D_HAT.png)
# Usage
Just clone this repo and run `./pycnc` from repo root. It will start in
interactive terminal mode where gcode commands can be entered manually.