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Update _P152_MCP42010.ino #179

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Update _P152_MCP42010.ino #179

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80 changes: 67 additions & 13 deletions _P152_MCP42010.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -8,9 +8,7 @@
// (1): Set value to potentiometer (http://xx.xx.xx.xx/control?cmd=digipot,0,255)
// (2): Set value to potentiometer (http://xx.xx.xx.xx/control?cmd=digipot,1,0)

#include <MCP42010.h>
// https://github.com/mensink/arduino-lib-MCP42010
static float Plugin_152_PotDest[2] = {0,0};
static int16_t Plugin_152_PotDest[2] = {0,0};

#define PLUGIN_152
#define PLUGIN_ID_152 152
Expand All @@ -29,7 +27,7 @@ boolean Plugin_152(byte function, struct EventStruct *event, String& string)
case PLUGIN_DEVICE_ADD:
{
Device[++deviceCount].Number = PLUGIN_ID_152;
Device[deviceCount].Type = DEVICE_TYPE_DUMMY; // SPI pins for ESP8266 are CS=15, CLK=14, MOSI=13
Device[deviceCount].Type = DEVICE_TYPE_SPI;
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@tonhuisman tonhuisman Dec 3, 2021 •
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If that still works for you, you are using a very old source release of ESPEasy...

Device[deviceCount].Ports = 0;
Device[deviceCount].VType = Sensor_VType::SENSOR_TYPE_DUAL;
Device[deviceCount].PullUpOption = false;
Expand Down Expand Up @@ -58,14 +56,22 @@ boolean Plugin_152(byte function, struct EventStruct *event, String& string)

case PLUGIN_GET_DEVICEGPIONAMES:
{
event->String1 = formatGpioName_bidirectional(F("CS"));
event->String2 = formatGpioName_bidirectional(F("CLK"));
event->String3 = formatGpioName_bidirectional(F("MOSI"));
event->String1 = formatGpioName_output(F("CS"));
break;
}

case PLUGIN_WEBFORM_LOAD:
{
# ifdef ESP8266
{
addFormNote(F("<b>1st GPIO</b> = CS (Usable GPIOs : 0, 2, 4, 5, 15)"));
}
# endif // ifdef ESP8266
# ifdef ESP32
{
addFormNote(F("<b>1st GPIO</b> = CS (Usable GPIOs : 0, 2, 4, 5, 15..19, 21..23, 25..27, 32, 33)"));
}
# endif // ifdef ESP32
success = true;
break;
}
Expand All @@ -78,13 +84,21 @@ boolean Plugin_152(byte function, struct EventStruct *event, String& string)

case PLUGIN_INIT:
{
uint8_t CS_pin_no = get_SPI_CS_Pin(event);

// set the slaveSelectPin as an output:
init_SPI_CS_Pin(CS_pin_no);

// initialize SPI:
SPI.setHwCs(false);
SPI.begin();
success = true;
break;
}

case PLUGIN_WRITE:
{

uint8_t CS_pin_no = get_SPI_CS_Pin(event);
String tmpString = string;
int argIndex = tmpString.indexOf(',');
if (argIndex)
Expand All @@ -97,11 +111,15 @@ boolean Plugin_152(byte function, struct EventStruct *event, String& string)
pot = event->Par1;
value = event->Par2;

MCP42010 digipot(Settings.TaskDevicePin1[event->TaskIndex],
Settings.TaskDevicePin2[event->TaskIndex],
Settings.TaskDevicePin3[event->TaskIndex]);

handle_SPI_CS_Pin(CS_pin_no, LOW);
SPI.transfer(((pot +1) & B11) | B00010000);
SPI.transfer(value);
handle_SPI_CS_Pin(CS_pin_no, HIGH);
Plugin_152_PotDest[pot] = value;
digipot.setPot(pot,value);
UserVar[event->BaseVarIndex + pot] = Plugin_152_PotDest[pot] ;
UserVar[event->BaseVarIndex + pot] = Plugin_152_PotDest[pot] ;

success = true;
}

Expand All @@ -112,7 +130,7 @@ boolean Plugin_152(byte function, struct EventStruct *event, String& string)
case PLUGIN_READ:
{

UserVar[event->BaseVarIndex + 0]= Plugin_152_PotDest[0] ;
UserVar[event->BaseVarIndex + 0] = Plugin_152_PotDest[0] ;
UserVar[event->BaseVarIndex + 1] = Plugin_152_PotDest[1] ;
success = true;
break;
Expand All @@ -122,3 +140,39 @@ boolean Plugin_152(byte function, struct EventStruct *event, String& string)
}
return success;
}
/**************************************************************************/
int get_SPI_CS_Pin(struct EventStruct *event) { // If no Pin is in Config we use 15 as default -> Hardware Chip Select on ESP8266
if (CONFIG_PIN1 != 0) {
return CONFIG_PIN1;
}
return 15;
}

/**************************************************************************/
/*!
@brief Initializing GPIO as OUTPUT for CS for SPI communication
@param CS_pin_no the GPIO pin number used as CS
@returns

Initial Revision - chri.kai.in 2021
/**************************************************************************/
void init_SPI_CS_Pin (uint8_t CS_pin_no) {

// set the slaveSelectPin as an output:
pinMode(CS_pin_no, OUTPUT);

}

/**************************************************************************/
/*!
@brief Handling GPIO as CS for SPI communication
@param CS_pin_no the GPIO pin number used as CS
@param l_state the state of the CS pin: "HIGH/LOW" reflecting the physical level
@returns

Initial Revision - chri.kai.in 2021
/**************************************************************************/
void handle_SPI_CS_Pin (uint8_t CS_pin_no, bool l_state) {

digitalWrite(CS_pin_no, l_state);
}