Ton/LinuxCNC_ArduinoConnector
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Alexander Richter 2023-03-29 12:56:43 +02:00
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# LinuxCNC_ArduinoConnector
<img src="/ArduinoChip.svg" width="200">
<img src="/ArduinoChip.svg" width="300" align="left">
By Alexander Richter, info@theartoftinkering.com 2022
please consider supporting me on Patreon: https://www.patreon.com/theartoftinkering
@ -117,22 +117,22 @@ For each Bit one Pin is needed. So for all 32 Positions 5 Pins are needed = 1,2,
The Arduino only works, if LinuxCNC is running and an USB Connection is established.
To give optical Feedback of the State of the connection a Status LED setting is provided.
This can be either an LED connected to an Output Pin or you can select one LED in your Digital LED Chain.
It will flash slowly after startup, when it waits for communication setup by LinuxCNC.
It will glow constantly when everything works.
it Will flash short when Connection was lost.
- It will flash slowly after startup, when it waits for communication setup by LinuxCNC.
- It will glow constantly when everything works.
- it Will flash short when Connection was lost.
# Serial communication over USB
The Send and receive Protocol is <Signal><PinNumber>:<Pin State>
To begin Transmitting Ready is send out and expects to receive E: to establish connection. Afterwards Data is exchanged.
Data is only send everythime it changes once.
Inputs & Toggle Inputs = 'I' -write only -Pin State: 0,1
Outputs = 'O' -read only -Pin State: 0,1
PWM Outputs = 'P' -read only -Pin State: 0-255
Digital LED Outputs = 'D' -read only -Pin State: 0,1
Analog Inputs = 'A' -write only -Pin State: 0-1024
Latching Potentiometers = 'L' -write only -Pin State: 0-max Position
Absolute Encoder input = 'K' -write only -Pin State: 0-32
Inputs & Toggle Inputs = 'I' -write only -Pin State: 0,1
Outputs = 'O' -read only -Pin State: 0,1
PWM Outputs = 'P' -read only -Pin State: 0-255
Digital LED Outputs = 'D' -read only -Pin State: 0,1
Analog Inputs = 'A' -write only -Pin State: 0-1024
Latching Potentiometers = 'L' -write only -Pin State: 0-max Position
Absolute Encoder input = 'K' -write only -Pin State: 0-32
Command 'E0:0' is used for connectivity checks and is send every 5 seconds as keep alive signal. If connection is lost the arduino begins flashing an LED to alarm the User.