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Support for WS2812 and PL9823 Digital LEDs

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This Update includes the support of digital LEDs. Therefore we can now attach unlimited RGB LEDs to LinuxCNC. YAY
This commit is contained in:
Alexander Richter 2023-03-25 14:38:12 +01:00
parent 9fb2e54453
commit fa6d5fa80a
4 changed files with 173 additions and 40 deletions
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168
LinuxCNC_ArduinoConnector.ino
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@ -23,10 +23,13 @@
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
This program is free software; you can redistribute it and/or modify
@ -46,33 +49,33 @@
//###IO's###
#define INPUTS
//#define INPUTS
#ifdef INPUTS
const int Inputs = 16; //number of inputs using internal Pullup resistor. (short to ground to trigger)
int InPinmap[] = {32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48};
#endif
#define OUTPUTS
//#define OUTPUTS
#ifdef OUTPUTS
const int Outputs = 9; //number of outputs
int OutPinmap[] = {10,9,8,7,6,5,4,3,2,21};
#endif
#define PWMOUTPUTS
//#define PWMOUTPUTS
#ifdef PWMOUTPUTS
const int PwmOutputs = 2; //number of outputs
int PwmOutPinmap[] = {12,11};
#endif
#define AINPUTS
//#define AINPUTS
#ifdef AINPUTS
const int AInputs = 1;
int AInPinmap[] = {1}; //Potentiometer for SpindleSpeed override
int smooth = 200; //number of samples to denoise ADC, try lower numbers on your setup
#endif
#define LPOTIS
//#define LPOTIS
#ifdef LPOTIS
const int LPotis = 2;
int LPotiPins[LPotis][2] = {
@ -82,7 +85,7 @@
int margin = 20; //giving it some margin so Numbers dont jitter, make this number smaller if your knob has more than 50 Positions
#endif
#define ABSENCODER
//#define ABSENCODER
#ifdef ABSENCODER
const int AbsEncPins[] = {27,28,31,29,30}; //1,2,4,8,16
#endif
@ -90,11 +93,56 @@
#define STATUSLED
#ifdef STATUSLED
const int StatLedPin = 13; //Pin for Status LED
const int StatLedPin = 0; //Pin for Status LED
const int StatLedErrDel[] = {1000,10}; //Blink Timing for Status LED Error (no connection)
const int DLEDSTATUSLED = 1; //set to 1 to use Digital LED instead. set StatLedPin to the according LED number in the chain.
#endif
/* Instead of connecting LED's to Output pins, you can also connect digital LED's such as DLED or PL9823.
DLEDcount defines, how many Digital LED's you want to control. For Each a output Pin will be generated in LinuxCNC hal. There are two modes supported.
You set the color here. Set the Parameter as {Greeb,Red,Blue}. When LinuxCNC sends the state = 1, the LED will be set to the specified color. State = 0 will shut the LED to the specified off color.
This allows you to either turn the LED On at any specified color or to flip color to show Status change. (Red and Green for example)
*/
#define DLED
#ifdef DLED
#include <Adafruit_NeoPixel.h>
const int DLEDcount = 8; //How Many DLED LED's are you going to connect?
const int DLEDPin = 4;
int DledOnColors[DLEDcount][3] = {
{255,0,0},
{0,0,255},
{0,255,0},
{0,255,0},
{0,255,0},
{0,255,0},
{0,255,0},
{0,255,0}
};
int DledOffColors[DLEDcount][3] = {
{0,0,0},
{0,255,0},
{255,0,0},
{255,0,0},
{255,0,0},
{0,0,255},
{0,0,255},
{0,0,255}
};
Adafruit_NeoPixel strip(DLEDcount, DLEDPin, NEO_GRB + NEO_KHZ800);//Color sequence is different for LED Chipsets. Use RGB for WS2812 or GRB for PL9823.
#endif
//###Misc Settings###
const int timeout = 10000; // timeout after 10 sec not receiving Stuff
@ -187,6 +235,9 @@ void setup() {
pinMode(AbsEncPins[4], INPUT_PULLUP);
#endif
#ifdef DLED
initDLED();
#endif
//Setup Serial
Serial.begin(115200);
@ -222,31 +273,23 @@ void loop() {
readAbsKnob(); //read ABS Encoder & send data
#endif
}
void comalive(){
#ifdef STATUSLED
if(millis() - lastcom > timeout){
StatLedErr(1000,10);
}
else{
digitalWrite(StatLedPin, HIGH);
if(DLEDSTATUSLED){controlDLED(StatLedPin, 1);}
else{digitalWrite(StatLedPin, HIGH);}
}
#endif
}
void StatLedErr(int offtime, int ontime){
unsigned long newMillis = millis();
if (newMillis - oldmillis >= offtime){
digitalWrite(StatLedPin, HIGH);
}
if (newMillis - oldmillis >= offtime+ontime){{
digitalWrite(StatLedPin, LOW);
oldmillis = newMillis;
}
}
}
void sendData(char sig, int pin, int state){
Serial.print(sig);
@ -261,16 +304,78 @@ void flushSerial(){
}
}
#ifdef STATUSLED
void StatLedErr(int offtime, int ontime){
unsigned long newMillis = millis();
if (newMillis - oldmillis >= offtime){
if(DLEDSTATUSLED){controlDLED(StatLedPin, 1);}
else{digitalWrite(StatLedPin, HIGH);}
}
if (newMillis - oldmillis >= offtime+ontime){{
if(DLEDSTATUSLED){controlDLED(StatLedPin, 0);}
else{digitalWrite(StatLedPin, LOW);}
oldmillis = newMillis;
}
}
}
#endif
#ifdef OUTPUTS
void writeOutputs(int Pin, int Stat){
digitalWrite(Pin, Stat);
}
#endif
#ifdef PWMOUTPUTS
void writePwmOutputs(int Pin, int Stat){
analogWrite(Pin, Stat);
}
#endif
#ifdef DLED
void initDLED(){
strip.begin();
strip.setBrightness(50);
for (int i = 0; i < DLEDcount; i++) {
strip.setPixelColor(i, strip.Color(DledOffColors[i][0],DledOffColors[i][1],DledOffColors[i][2]));
}
strip.show();
#ifdef DEBUG
Serial.print("DLED initialised");
#endif
}
void controlDLED(int Pin, int Stat){
if(Stat == 1){
strip.setPixelColor(Pin, strip.Color(DledOnColors[Pin][0],DledOnColors[Pin][1],DledOnColors[Pin][2]));
#ifdef DEBUG
Serial.print("DLED No.");
Serial.print(Pin);
Serial.print(" set to:");
Serial.println(Stat);
#endif
}
else{strip.setPixelColor(Pin, strip.Color(DledOffColors[Pin][0],DledOffColors[Pin][1],DledOffColors[Pin][2]));
#ifdef DEBUG
Serial.print("DLED No.");
Serial.print(Pin);
Serial.print(" set to:");
Serial.println(Stat);
#endif
}
strip.show();
}
#endif
#ifdef LPOTI
int readLPoti(){
for(int i= 0;i<LPotis; i++){
int var = analogRead(LPotiPins[i][0])+margin;
@ -284,8 +389,10 @@ int readLPoti(){
}
#endif
#ifdef AINPUTS
int readAInputs(){
unsigned long var = 0;
for(int i= 0;i<AInputs; i++){
@ -300,7 +407,8 @@ int readAInputs(){
}
}
}
#endif
#ifdef INPUTS
void readInputs(){
for(int i= 0;i<Inputs; i++){
int State = digitalRead(InPinmap[i]);
@ -310,8 +418,9 @@ void readInputs(){
}
}
}
#endif
#ifdef ABSENCODER
int readAbsKnob(){
int var = 0;
if(digitalRead(AbsEncPins[0])==1){
@ -336,18 +445,27 @@ int readAbsKnob(){
oldAbsEncState = var;
return (var);
}
#endif
void commandReceived(char cmd, uint16_t io, uint16_t value){
#ifdef OUTPUTS
if(cmd == 'O'){
writeOutputs(io,value);
}
#endif
#ifdef PWMOUTPUTS
if(cmd == 'P'){
writePwmOutputs(io,value);
}
#endif
if(cmd == 'E'){
lastcom=millis();
}
#ifdef DLED
if(cmd == 'D'){
controlDLED(io,value);
}
#endif
#ifdef DEBUG
Serial.print("I Received= ");
@ -359,7 +477,7 @@ void commandReceived(char cmd, uint16_t io, uint16_t value){
}
int isCmdChar(char cmd){
if(cmd == 'O'||cmd == 'P'||cmd == 'E') {return true;}
if(cmd == 'O'||cmd == 'P'||cmd == 'E'||cmd == 'L') {return true;}
else{return false;}
}

2
README.md
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@ -1,7 +1,7 @@
# LinuxCNC_ArduinoConnector
By Alexander Richter, info@theartoftinkering.com 2022
please consider supporting me on Patreon: https://www.patreon.com/theartoftinkering
For my CNC Machine i wanted to include more IO's than my Mesa card was offering. This Projekt enables to connect Arduino to LinuxCNC to include as many IO's as you wish.

17
arduino.py
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@ -24,6 +24,7 @@ import serial, time, hal
# 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
@ -74,6 +75,8 @@ LPotiLatches = [[2,9],
AbsKnob = 1
AbsKnobPos = 32
# Set how many Digital LED's you have connected.
DLEDcount = 8
Debug = 1
@ -86,7 +89,7 @@ oldPwmOutStates=[0]*PwmOutputs
# setup Input halpins
for port in range(Inputs):
c.newpin("dIn.{}".format(InPinmap[port]), hal.HAL_BIT, hal.HAL_OUT)
c.newparam("dIn.{}-invert".format(InPinmap[port]), hal.HAL_BIT, hal.HAL_RW)
c.newparam("dIn.{}-invert".format(InPinmap[port]), hal.HAL_BIT, hal.HAL_OUT)
# setup Output halpins
for port in range(Outputs):
@ -111,6 +114,11 @@ if AbsKnob:
for port in range(AbsKnobPos):
c.newpin("AbsKnob.{}".format(port), hal.HAL_BIT, hal.HAL_OUT)
# setup Digital LED halpins
if DLEDcount > 0:
for port in range(DLEDcount):
c.newpin("DLED.{}".format(port), hal.HAL_BIT, hal.HAL_IN)
c.ready()
#setup Serial connection
@ -165,6 +173,13 @@ def managageOutputs():
if (Debug):print ("Sending:{}".format(command.encode()))
olddOutStates[port]= State
for port in range(DLEDcount):
State = int(c["DLED.{}".format(port)])
Sig = 'D'
Pin = int(port)
command = "{}{}:{}\n".format(Sig,Pin,State)
arduino.write(command.encode())
if (Debug):print ("Sending:{}".format(command.encode()))
while True:

0
test.comp Normal file
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