„hl2-interface.ino“ hinzufügen

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Michael Clemens // DK1MI 2023-05-08 21:54:52 +00:00
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//***************************************************************************************
//* PA70 Controller - Band, and Fan Control by Temperature for Arduino Nano *
//* To be used together with Hermes Lite v2 (http://www.hermeslite.com/) *
//* by Cesc Gudayol (EA3IGT) *
//* Version 3.0.1 01/04/2021 *
//* *
//* More info at: https://github.com/ea3igt/HL2-PA70 *
//* *
//***************************************************************************************
//* THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND *
//***************************************************************************************
//* v2.0 * 24/10/2020 * Initial version *
//* v2.1 * 27/10/2020 * Convert sendOled to a function to refresh the OLED display *
//* V2.2 * 25/11/2020 * Store last band selected in EPROM *
//* * 12/12/2020 * Get 6 least significative I2C bus bits to select the band *
//* V2.3 * 14/12/2020 * Use EXTTR to control PTT status *
//* V3.0 * 20/02/2021 * First version to test new Control Board v2.1 *
//* V3.0.1 * 01/04/2021 * Correct OLED refresh problems *
//***************************************************************************************
//
// Pin Configuration:
// - PIN A00 OUTPUT: SCL for I2C Master (OLED display)
// - PIN A01 OUTPUT: SDA for I2C Master (OLED display)
// - PIN A04 INPUT: SDA for I2C Slave (Hermes Lite 2 Control bus)
// - PIN A05 INPUT: SCL for I2C Slave (Hermes Lite 2 Control bus)
// - PIN A03 INPUT: NTC divider voltage
// - PIN D02 INPUT: EXTTR (PTT) control from Hermes Lite 2
// - PIN D03 OUTPUT: LPF Band 1 Control (80m)
// - PIN D04 OUTPUT: LPF Band 2 Control (40/60m)
// - PIN D05 OUTPUT: LPF Band 3 Control (30/20m)
// - PIN D06 OUTPUT: LPF Band 4 Control (17/15/12/10m)
// - PIN D07 LPF Spare
// - PIN D08 LPF Spare
// - PIN D09 LPF Spare
// - PIN D10 LPF Spare -> Antenna Switch
// - PIN D11 OUTPUT: PWM for Fan control f(Temp)
// - PIN D12 OUTPUT: PTT Control to the Power Amp
#include <Wire.h> //For I2C control
#include <U8g2lib.h> //For SSD1306 Chip Control (OLED)
#include <EEPROM.h> //To store values from PA70-Controller
#include <util/delay.h> //Library to delay inside one Interrupt
//#define TEST //Uncomment if Testing (Serial Monitor traces)
// Declaration for an SH1106 display connected to I2C
// U8G2_RX: Rotation (R0 = 0º | R1 = 90º | R2 = 180º | R3 = 270º | MIRROR)
// SW SCL pin A0
// SW SDA pin A1
// Use U8X8_PIN_NONE if the reset pin is not connected (All Boards without Reset of the Display)
U8G2_SH1106_128X64_NONAME_2_SW_I2C u8g2(U8G2_R0, A0, A1, U8X8_PIN_NONE);
// Declaration for the Hermes Lites v2 I2C (Listen to Adress 0x20)
// HW SDA pin A4
// HW SCL pin A5
// Thermometer definitions
int ThermistorPin = 3; //Pin A3 for NTC voltage divider reading
int Vo; //To store thermistor bridge readings
float R1 = 10000; //Adjust to the R value for the divider (About 10K Ohm)
float logR2, R2, T;
float c1 = 1.009249522e-03, c2 = 2.378405444e-04, c3 = 2.019202697e-07;
// PWM definitions
const byte PWM_Pin = 11; //PWM Pin
// LPF Output Pins (D3..D10 pins can be used)
#define LPF_band1 3 //Pin D3
#define LPF_band2 4 //Pin D4
#define LPF_band3 5 //Pin D5
#define LPF_band4 6 //Pin D6
#define Antenna 19 //Pin D10
// PTT Control
#define EXTTR 2 //Pin D2
#define PTTpin 12 //Pin D12
// Other Configurations
float initialTempFanActivation = 27; //Minimum temperature for Fan Activation
float tempFanActivation; //to implement the histeresis cycle
float previousTemp_fanActivation; //to implement the histeresis cycle
bool fanConnected = false; //to store if Fan is activated to show on OLED
String myBand="---"; //to store myBand String
float myTemp; //to store Temperature read from NTC
byte selectedBand; //to store Selected Band
byte previousSelectedBand; //to store previously Selected Band
byte previousI2CBand; //to store previously I2C Band decoded
byte PTTStatus = 0; //to store global PTT Status
bool PTTChanged = false; //to store global PTT Status Changed
int selected_antenna = 0;
// SetUp function initializations
void setup() {
#ifdef TEST
Serial.begin(9600);
#endif
// U8G2 Display initialization
u8g2.begin();
u8g2.setFont(u8g2_font_helvB12_tr);
u8g2.firstPage();
do {
u8g2.drawStr(5,25,"PA70 Ctrl v3.0.1"); //Software version
u8g2.drawStr(5,53," EA3IGT"); //Change to whatever you want
} while ( u8g2.nextPage() );
// I2C Slave Setup
Wire.begin(0x20); // join i2c bus with address to listen
Wire.onReceive(receiveEvent); // register event
// Fan Setup
tempFanActivation = initialTempFanActivation;
previousTemp_fanActivation = tempFanActivation;
// LPF Setup
pinMode(LPF_band1, OUTPUT);
pinMode(LPF_band2, OUTPUT);
pinMode(LPF_band3, OUTPUT);
pinMode(LPF_band4, OUTPUT);
// Antenna
pinMode(Antenna, OUTPUT);
// OLED Setup
pinMode(A0,OUTPUT);
pinMode(A1,OUTPUT);
// PTT Setup
pinMode(PTTpin,OUTPUT);
pinMode(EXTTR,INPUT);
// PWM Setup
pinMode(PWM_Pin,OUTPUT);
delay(200);
//Listen to EXTTR status change
attachInterrupt(digitalPinToInterrupt(EXTTR),changePTT,CHANGE);
//Get stored Band from EEPROM for initial filter selection
previousSelectedBand=EEPROM.read(0); //Read LPF filter Band from EEPROM byte 0
previousI2CBand=EEPROM.read(1); //Read I2C byte Band from EEPROM byte 1
#ifdef TEST
Serial.print(F("*** Previous I2C Band: "));
Serial.println(previousI2CBand);
Serial.print(F("*** Previous Selected Band: "));
Serial.println(previousSelectedBand);
Serial.println(F("Initializing..."));
Serial.println();
#endif
decodeBand(previousI2CBand);
setLpfBand(previousSelectedBand); //Select LPF filter
delay(2000); //Delay to show the Logo & Version
sendOled(); //Refresh OLED
}
// Main loop program
void loop()
{
int PWMDuty;
int Times = 100; //Average N times to be more stable
float Temperature = 0; //All thermometer code from: https://bit.ly/3pOUjVo
for(int i = 0; i < Times; i++) {
Vo = analogRead(ThermistorPin);
R2 = R1 * (1024.0 / (float)Vo - 1.0);
logR2 = log(R2);
T = (1.0 / (c1 + c2*logR2 + c3*logR2*logR2*logR2));
T = T - 273.15 + 1; //+1 is my personal adjustment to be more precise
Temperature = Temperature + T;
if (PTTChanged)
{
digitalWrite(PTTpin,PTTStatus); //Toggle PTT
PTTChanged=false; //Reset PTTChanged
}
}
myTemp = int(Temperature/Times*10)/(float)10.0; //Rounded to get 1 decimal
PWMDuty = int((myTemp - tempFanActivation)*20); //Calculate PWMDuty (increase to get more aggresive fan)
if (PWMDuty < 0)
{
PWMDuty = 0;
}
if (PWMDuty > 254)
{
PWMDuty = 254;
}
#ifdef TEST
Serial.print(F("Temperature: "));
Serial.print(myTemp,1);
Serial.print(F(" - PWMDuty: "));
Serial.println(PWMDuty);
#endif
analogWrite(PWM_Pin,PWMDuty); //Select the appropriate PWM f(temperature)
if (PWMDuty > 0 and not(fanConnected)) //Implement histeresis cycle
{
tempFanActivation = initialTempFanActivation - 1;
}
if (PWMDuty == 0 and fanConnected)
{
tempFanActivation = initialTempFanActivation;
}
if (PWMDuty > 0)
{
fanConnected=true;
}
else
{
fanConnected=false;
}
#ifdef TEST
if (fanConnected)
{
Serial.println(F("Fan Connected"));
Serial.print(F("Minimum Temperature Fan Deactivation: "));
Serial.println(tempFanActivation,1);
}
else
{
Serial.println(F("Fan Disconnected"));
Serial.print(F("Minimum Temperature Fan Activation: "));
Serial.println(tempFanActivation,1);
}
Serial.print(F("BAND:"));
Serial.println(myBand);
Serial.println();
#endif
sendOled(); //Refresh OLED
}
//Interrupt function to handle any PTT change at HL2 (EXTTR signal)
void changePTT()
{
int myEXTTR = digitalRead(EXTTR);
PTTStatus = not(myEXTTR);
PTTChanged = true;
#ifdef TEST
Serial.println(F("*** EXTTR Changed ***"));
Serial.print(F("Value="));
Serial.println(myEXTTR);
Serial.print(F("PTTStatus="));
Serial.println(PTTStatus);
#endif
}
void receiveEvent(int howMany) { //Triggered when receive I2C information from HL2
byte c[10];
int i= 0;
while (0 < Wire.available()) { // loop through all but the last
c[i] = Wire.read(); // receive byte as a character
i++;
}
#ifdef TEST
Serial.print(F("I2C BUS DATA:"));
Serial.println(c[1]); // write to usb monitor
#endif
byte myC=c[1] & B00111111; //Get 6 least significative bits
decodeBand(myC); //Decode Band
// write to LPF "Binary Bus" (Band Selection)
setLpfBand(selectedBand);
if ((selectedBand!=previousSelectedBand) and (PTTStatus==1))
{
#ifdef TEST
// write to usb monitor
Serial.println(F("*** Change Filter: Delay 50 ms ***"));
#endif
_delay_ms(50); //Delay 50ms to settle LPF filters (if change) before PTT
}
previousSelectedBand = selectedBand;
// Toggle PTT
digitalWrite(PTTpin,PTTStatus);
// toggle Antenna
digitalWrite(Antenna,selected_antenna);
//Store Last Selected Band into EEPROM
if (PTTStatus)
{
EEPROM.write(0,selectedBand); //Byte 0 for selectedBand
EEPROM.write(1,myC); //Byte 1 for I2C decoded
}
#ifdef TEST
// write to usb monitor
Serial.print(F("LPF BAND CONTROL (Binary):"));
Serial.println(selectedBand);
Serial.print(F("PTT CONTROL:"));
Serial.println(PTTStatus);
#endif
}
//Function to activate the appropriate filter band at LPF
//***************** Change accordingly ******************
void setLpfBand(int lpfBand)
{
// write to LPF "Binary Bus" (Band Selection)
digitalWrite(LPF_band1, lpfBand & B0001);
digitalWrite(LPF_band2, lpfBand & B0010);
digitalWrite(LPF_band3, lpfBand & B0100);
digitalWrite(LPF_band4, lpfBand & B1000);
}
//Function to decode HL2 band and select/map the filter
//**************** Change accordingly *****************
void decodeBand(byte c)
{
switch (c) {
case 0x1: //160m
selectedBand = B0001;
myBand = F("160m");
selected_antenna = 0;
break;
case 0x2: //80m
selectedBand = B0001;
myBand = F("80m");
selected_antenna = 0;
break;
case 0x4: //60m & 40m
selectedBand = B0010;
myBand = F("60/40m");
selected_antenna = 0;
break;
case 0x8: //30m & 20m
selectedBand = B0100;
myBand = F("30/20m");
selected_antenna = 1;
break;
case 0x10: //17m & 15m
selectedBand = B1000;
myBand = F("17/15m");
selected_antenna = 1;
break;
case 0x20: //12m & 10m
selectedBand = B1000;
myBand = F("12/10m");
selected_antenna = 1;
break;
default:
selectedBand=selectedBand; //No Change
}
}
//Function to send all the information to the OLED
void sendOled(void)
{
// write to OLED
//u8g2.clearBuffer();
u8g2.firstPage();
do {
// u8g2.drawFrame(0,0,128,64);
u8g2.setFont(u8g2_font_t0_17_tr);
u8g2.drawStr(5,17,"BAND:");
u8g2.drawStr(55,17,myBand.c_str());
u8g2.drawStr(5,37,"TEMP:");
String myTempStr=String(myTemp,1);
u8g2.drawStr(55,37,myTempStr.c_str());
if (fanConnected)
{
//u8g2.drawStr(97,37,"#");
u8g2.setFont(u8g2_font_open_iconic_all_2x_t);
u8g2.drawStr(96,39,"\xcd");
}
else
{
//u8g2.drawStr(97,36,"_");
u8g2.drawStr(97,36,"Antenna:");
u8g2.drawStr(55,36,String(selected_antenna).c_str());
}
//u8g2.setFont(u8g2_font_t0_17_tr);
//u8g2.drawStr(5,57,"TRANSMITING"); //Space for future uses
delay(2);
} while ( u8g2.nextPage() );
u8g2.sendBuffer();
}