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table with pin mapping

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Nikolay Khabarov
2017-07-10 04:01:39 +03:00
parent 0bb4358353
commit 1b37e514a1
1 changed files with 33 additions and 32 deletions
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README.md
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@@ -45,39 +45,40 @@ All configs are stored in [config.py](./cnc/config.py) and contain hardware
properties, limitations and pin names for hardware control.
Raspberry Pi implementation should be connected to A4988, DRV8825 or any other
stepper motor drivers with DIR and STEP pin inputs.
Default config is created for Raspberry Pi 2-3 and this wiring diagram:
Default config is created for Raspberry Pi 2-3 and this wiring config:
TODO TODO TODO
gpio21 - x step
gpio20 - x dir
gpio26 - enable
gpio16 - y step
gpio19 - y dir
gpio13 - z dir
gpio12 - z step
gpio6 - e1 step
gpio5 - e1 dir
gpio7 - e0 dir
gpio8 - e0 step
gpio11 - z max
gpio25 - z min
gpio9 - y max
gpio10 - y min
gpio24 - x max
gpio23 - x min
gpio22 - heat bed
gpio27 - heater 2(uses as fan)
gpio18 - heater 1
gpio17 - ser1(not connected)
gpio15 - ser2(not connected)
gpio4 - ser3(not connected)
gpio14 - ser4(not connected)
gpio3 - i2c scl for ads1115
gpio2 - i2c sda for ads1115
ads1115 ch0 - heater 2(not connected)
ads1115 ch1 - bed
ads1115 ch2 - heater 1
ads1115 ch3 - not connected
| circuit | RPi pin | RAMPS pin | Note |
|-----------------|-------------|--------------------------|------------------|
| X step | gpio21 | A0 | |
| X dir | gpio20 | A1 | |
| steppers enable | gpio26 | A2, A8, D24, D34, D38 | all steppers |
| Y step | gpio16 | A6 | |
| Y dir | gpio19 | A7 | |
| Z dir | gpio13 | D48 | |
| Z step | gpio12 | D46 | |
| E1 step | gpio6 | D36 | reserve |
| E1 dir | gpio5 | D34 | reserve |
| E0 dir | gpio7 | D28 | |
| E0 step | gpio8 | D26 | |
| Z max | gpio11 | D19 | |
| Z min | gpio25 | D18 | |
| Y max | gpio9 | D15 | |
| Y min | gpio10 | D14 | |
| X max | gpio24 | D2 | |
| X min | gpio23 | D3 | |
| heater bed | gpio22 | D8 | |
| heater 2 | gpio27 | D9 | uses for fan |
| heater 1 | gpio18 | D10 | |
| ser 1 | gpio17 | D11 | reserve |
| ser 2 | gpio15 | D6 | reserve |
| ser 3 | gpio4 | D5 | reserve |
| ser 4 | gpio14 | D4 | reserve |
| I2C SCL | gpio3 | - | to ads111x |
| I2C SDA | gpio2 | - | to ads111x |
| ads1115 ch0 | - | A15 | heater 2 - nc |
| ads1115 ch1 | - | A14 | bed sensor |
| ads1115 ch2 | - | A13 | extruder sensor |
| ads1115 ch3 | - | - | not connected |
So having Raspberry Pi connected this way, there is no need to configure
pin map for project.