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//***************************************************************************************
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//***************************************************************************************
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//* PA70 Controller - Band, and Fan Control by Temperature for Arduino Nano *
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//* Hermes Lite 2 Interface Box *
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//* To be used together with Hermes Lite v2 (http://www.hermeslite.com/) *
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//* by Cesc Gudayol (EA3IGT) *
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//* Version 3.0.1 01/04/2021 *
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//* *
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//* *
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//* Reads I2C data from the Hermes Lite 2 and a) controls an antenna switch based *
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//* on the selected band and b) sets the correct LPF of the Hardrock 50 Power Amp *
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//* *
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//* Based on HL2-PA70 by Cesc Gudayol (EA3IGT) Version 3.0.1 from 01/04/2021 *
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//* More info at: https://github.com/ea3igt/HL2-PA70 *
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//* More info at: https://github.com/ea3igt/HL2-PA70 *
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//* *
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//* *
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//* Adapted by Michael Clemens (DK1MI) *
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//* *
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//***************************************************************************************
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//***************************************************************************************
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//* THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND *
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//* THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND *
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//***************************************************************************************
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//***************************************************************************************
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//* v2.0 * 24/10/2020 * Initial version *
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//* v2.1 * 27/10/2020 * Convert sendOled to a function to refresh the OLED display *
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//* V2.2 * 25/11/2020 * Store last band selected in EPROM *
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//* * 12/12/2020 * Get 6 least significative I2C bus bits to select the band *
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//* V2.3 * 14/12/2020 * Use EXTTR to control PTT status *
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//* V3.0 * 20/02/2021 * First version to test new Control Board v2.1 *
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//* V3.0.1 * 01/04/2021 * Correct OLED refresh problems *
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//***************************************************************************************
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//
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//
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// Pin Configuration:
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// Pin Configuration:
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// - PIN A00 OUTPUT: SCL for I2C Master (OLED display)
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// - PIN A01 OUTPUT: SDA for I2C Master (OLED display)
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// - PIN A04 INPUT: SDA for I2C Slave (Hermes Lite 2 Control bus)
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// - PIN A04 INPUT: SDA for I2C Slave (Hermes Lite 2 Control bus)
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// - PIN A05 INPUT: SCL for I2C Slave (Hermes Lite 2 Control bus)
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// - PIN A05 INPUT: SCL for I2C Slave (Hermes Lite 2 Control bus)
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// - PIN A03 INPUT: NTC divider voltage
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// - PIN D10 OUTPUT: Antenna Switch
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// - PIN D02 INPUT: EXTTR (PTT) control from Hermes Lite 2
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// - PIN D03 OUTPUT: LPF Band 1 Control (80m)
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// - PIN D04 OUTPUT: LPF Band 2 Control (40/60m)
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// - PIN D05 OUTPUT: LPF Band 3 Control (30/20m)
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// - PIN D06 OUTPUT: LPF Band 4 Control (17/15/12/10m)
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// - PIN D07 LPF Spare
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// - PIN D08 LPF Spare
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// - PIN D09 LPF Spare
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// - PIN D10 LPF Spare -> Antenna Switch
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// - PIN D11 OUTPUT: PWM for Fan control f(Temp)
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// - PIN D12 OUTPUT: PTT Control to the Power Amp
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#include <Wire.h> //For I2C control
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#include <Wire.h> //For I2C control
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#include <U8g2lib.h> //For SSD1306 Chip Control (OLED)
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#include <EEPROM.h> //To store values from PA70-Controller
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#include <EEPROM.h> //To store values from PA70-Controller
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#include <util/delay.h> //Library to delay inside one Interrupt
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#include <util/delay.h> //Library to delay inside one Interrupt
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//#define TEST //Uncomment if Testing (Serial Monitor traces)
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//#define TEST //Uncomment if Testing (Serial Monitor traces)
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// Declaration for an SH1106 display connected to I2C
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// U8G2_RX: Rotation (R0 = 0º | R1 = 90º | R2 = 180º | R3 = 270º | MIRROR)
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// SW SCL pin A0
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// SW SDA pin A1
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// Use U8X8_PIN_NONE if the reset pin is not connected (All Boards without Reset of the Display)
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U8G2_SH1106_128X64_NONAME_2_SW_I2C u8g2(U8G2_R0, A0, A1, U8X8_PIN_NONE);
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// Declaration for the Hermes Lites v2 I2C (Listen to Adress 0x20)
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// Declaration for the Hermes Lites v2 I2C (Listen to Adress 0x20)
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// HW SDA pin A4
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// HW SDA pin A4
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// HW SCL pin A5
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// HW SCL pin A5
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// Thermometer definitions
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int ThermistorPin = 3; //Pin A3 for NTC voltage divider reading
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int Vo; //To store thermistor bridge readings
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float R1 = 10000; //Adjust to the R value for the divider (About 10K Ohm)
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float logR2, R2, T;
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float c1 = 1.009249522e-03, c2 = 2.378405444e-04, c3 = 2.019202697e-07;
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// PWM definitions
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#define Antenna 10 //Pin D10
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const byte PWM_Pin = 11; //PWM Pin
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// LPF Output Pins (D3..D10 pins can be used)
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#define LPF_band1 3 //Pin D3
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#define LPF_band2 4 //Pin D4
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#define LPF_band3 5 //Pin D5
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#define LPF_band4 6 //Pin D6
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#define Antenna 19 //Pin D10
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// PTT Control
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#define EXTTR 2 //Pin D2
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#define PTTpin 12 //Pin D12
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// Other Configurations
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// Other Configurations
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float initialTempFanActivation = 27; //Minimum temperature for Fan Activation
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float tempFanActivation; //to implement the histeresis cycle
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float previousTemp_fanActivation; //to implement the histeresis cycle
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bool fanConnected = false; //to store if Fan is activated to show on OLED
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String myBand="---"; //to store myBand String
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float myTemp; //to store Temperature read from NTC
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byte selectedBand; //to store Selected Band
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byte previousSelectedBand; //to store previously Selected Band
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byte previousI2CBand; //to store previously I2C Band decoded
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byte previousI2CBand; //to store previously I2C Band decoded
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byte PTTStatus = 0; //to store global PTT Status
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bool PTTChanged = false; //to store global PTT Status Changed
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int selected_antenna = 0;
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int selected_antenna = 0;
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// SetUp function initializations
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// SetUp function initializations
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void setup() {
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void setup() {
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#ifdef TEST
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Serial.begin(9600);
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Serial.begin(9600);
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#endif
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// U8G2 Display initialization
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u8g2.begin();
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u8g2.setFont(u8g2_font_helvB12_tr);
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u8g2.firstPage();
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do {
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u8g2.drawStr(5,25,"PA70 Ctrl v3.0.1"); //Software version
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u8g2.drawStr(5,53," EA3IGT"); //Change to whatever you want
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} while ( u8g2.nextPage() );
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// I2C Slave Setup
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// I2C Slave Setup
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Wire.begin(0x20); // join i2c bus with address to listen
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Wire.begin(0x20); // join i2c bus with address to listen
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Wire.onReceive(receiveEvent); // register event
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Wire.onReceive(receiveEvent); // register event
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// Fan Setup
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tempFanActivation = initialTempFanActivation;
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previousTemp_fanActivation = tempFanActivation;
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// LPF Setup
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pinMode(LPF_band1, OUTPUT);
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pinMode(LPF_band2, OUTPUT);
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pinMode(LPF_band3, OUTPUT);
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pinMode(LPF_band4, OUTPUT);
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// Antenna
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// Antenna
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pinMode(Antenna, OUTPUT);
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pinMode(Antenna, OUTPUT);
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// OLED Setup
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pinMode(A0,OUTPUT);
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pinMode(A1,OUTPUT);
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// PTT Setup
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pinMode(PTTpin,OUTPUT);
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pinMode(EXTTR,INPUT);
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// PWM Setup
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pinMode(PWM_Pin,OUTPUT);
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delay(200);
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delay(200);
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//Listen to EXTTR status change
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attachInterrupt(digitalPinToInterrupt(EXTTR),changePTT,CHANGE);
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//Get stored Band from EEPROM for initial filter selection
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//Get stored Band from EEPROM for initial filter selection
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previousSelectedBand=EEPROM.read(0); //Read LPF filter Band from EEPROM byte 0
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previousI2CBand=EEPROM.read(1); //Read I2C byte Band from EEPROM byte 1
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previousI2CBand=EEPROM.read(1); //Read I2C byte Band from EEPROM byte 1
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#ifdef TEST
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Serial.print(F("*** Previous I2C Band: "));
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Serial.println(previousI2CBand);
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Serial.print(F("*** Previous Selected Band: "));
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Serial.println(previousSelectedBand);
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Serial.println(F("Initializing..."));
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Serial.println();
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#endif
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decodeBand(previousI2CBand);
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decodeBand(previousI2CBand);
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setLpfBand(previousSelectedBand); //Select LPF filter
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delay(2000); //Delay to show the Logo & Version
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sendOled(); //Refresh OLED
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}
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}
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// Main loop program
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// Main loop program
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void loop()
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void loop()
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{
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{
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int PWMDuty;
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// do nothing
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int Times = 100; //Average N times to be more stable
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float Temperature = 0; //All thermometer code from: https://bit.ly/3pOUjVo
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for(int i = 0; i < Times; i++) {
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Vo = analogRead(ThermistorPin);
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R2 = R1 * (1024.0 / (float)Vo - 1.0);
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logR2 = log(R2);
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T = (1.0 / (c1 + c2*logR2 + c3*logR2*logR2*logR2));
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T = T - 273.15 + 1; //+1 is my personal adjustment to be more precise
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Temperature = Temperature + T;
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if (PTTChanged)
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{
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digitalWrite(PTTpin,PTTStatus); //Toggle PTT
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PTTChanged=false; //Reset PTTChanged
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}
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}
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myTemp = int(Temperature/Times*10)/(float)10.0; //Rounded to get 1 decimal
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PWMDuty = int((myTemp - tempFanActivation)*20); //Calculate PWMDuty (increase to get more aggresive fan)
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if (PWMDuty < 0)
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{
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PWMDuty = 0;
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}
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if (PWMDuty > 254)
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{
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PWMDuty = 254;
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}
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#ifdef TEST
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Serial.print(F("Temperature: "));
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Serial.print(myTemp,1);
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Serial.print(F(" - PWMDuty: "));
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Serial.println(PWMDuty);
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#endif
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analogWrite(PWM_Pin,PWMDuty); //Select the appropriate PWM f(temperature)
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if (PWMDuty > 0 and not(fanConnected)) //Implement histeresis cycle
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{
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tempFanActivation = initialTempFanActivation - 1;
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}
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if (PWMDuty == 0 and fanConnected)
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{
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tempFanActivation = initialTempFanActivation;
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}
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if (PWMDuty > 0)
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{
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fanConnected=true;
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}
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else
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{
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fanConnected=false;
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}
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#ifdef TEST
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if (fanConnected)
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{
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Serial.println(F("Fan Connected"));
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Serial.print(F("Minimum Temperature Fan Deactivation: "));
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Serial.println(tempFanActivation,1);
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}
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else
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{
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Serial.println(F("Fan Disconnected"));
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Serial.print(F("Minimum Temperature Fan Activation: "));
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Serial.println(tempFanActivation,1);
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}
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Serial.print(F("BAND:"));
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Serial.println(myBand);
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Serial.println();
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#endif
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sendOled(); //Refresh OLED
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}
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}
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//Interrupt function to handle any PTT change at HL2 (EXTTR signal)
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void changePTT()
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{
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int myEXTTR = digitalRead(EXTTR);
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PTTStatus = not(myEXTTR);
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PTTChanged = true;
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#ifdef TEST
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Serial.println(F("*** EXTTR Changed ***"));
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Serial.print(F("Value="));
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Serial.println(myEXTTR);
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Serial.print(F("PTTStatus="));
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Serial.println(PTTStatus);
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#endif
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}
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void receiveEvent(int howMany) { //Triggered when receive I2C information from HL2
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void receiveEvent(int howMany) { //Triggered when receive I2C information from HL2
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byte c[10];
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byte c[10];
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@ -267,32 +75,15 @@ void receiveEvent(int howMany) { //Triggered when receive I2C information f
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#endif
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#endif
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byte myC=c[1] & B00111111; //Get 6 least significative bits
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byte myC=c[1] & B00111111; //Get 6 least significative bits
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decodeBand(myC); //Decode Band
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decodeBand(myC); //Decode Band
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// write to LPF "Binary Bus" (Band Selection)
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setLpfBand(selectedBand);
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if ((selectedBand!=previousSelectedBand) and (PTTStatus==1))
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{
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#ifdef TEST
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// write to usb monitor
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Serial.println(F("*** Change Filter: Delay 50 ms ***"));
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#endif
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_delay_ms(50); //Delay 50ms to settle LPF filters (if change) before PTT
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}
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previousSelectedBand = selectedBand;
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// Toggle PTT
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digitalWrite(PTTpin,PTTStatus);
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// toggle Antenna
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// toggle Antenna
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digitalWrite(Antenna,selected_antenna);
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digitalWrite(Antenna,selected_antenna);
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//Store Last Selected Band into EEPROM
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//Store Last Selected Band into EEPROM
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if (PTTStatus)
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{
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EEPROM.write(0,selectedBand); //Byte 0 for selectedBand
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EEPROM.write(1,myC); //Byte 1 for I2C decoded
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EEPROM.write(1,myC); //Byte 1 for I2C decoded
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}
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#ifdef TEST
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#ifdef TEST
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// write to usb monitor
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// write to usb monitor
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@ -303,86 +94,38 @@ void receiveEvent(int howMany) { //Triggered when receive I2C information f
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#endif
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#endif
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}
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}
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//Function to activate the appropriate filter band at LPF
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//***************** Change accordingly ******************
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void setLpfBand(int lpfBand)
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{
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// write to LPF "Binary Bus" (Band Selection)
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digitalWrite(LPF_band1, lpfBand & B0001);
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digitalWrite(LPF_band2, lpfBand & B0010);
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digitalWrite(LPF_band3, lpfBand & B0100);
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digitalWrite(LPF_band4, lpfBand & B1000);
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}
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//Function to decode HL2 band and select/map the filter
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//Function to decode HL2 band and select/map the filter
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//**************** Change accordingly *****************
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//**************** Change accordingly *****************
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void decodeBand(byte c)
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void decodeBand(byte c)
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{
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{
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switch (c) {
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switch (c) {
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case 0x1: //160m
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case 0x1: //160m
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selectedBand = B0001;
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myBand = F("160m");
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selected_antenna = 0;
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selected_antenna = 0;
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Serial.println("HRBN10;"); // sets the Hardrock-50 to 160m
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break;
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break;
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case 0x2: //80m
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case 0x2: //80m
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selectedBand = B0001;
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myBand = F("80m");
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selected_antenna = 0;
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selected_antenna = 0;
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Serial.println("HRBN9;"); // sets the Hardrock-50 to 80m
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break;
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break;
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case 0x4: //60m & 40m
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case 0x4: //60m & 40m
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selectedBand = B0010;
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myBand = F("60/40m");
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selected_antenna = 0;
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selected_antenna = 0;
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||||||
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Serial.println("HRBN7;"); // sets the Hardrock-50 to 40m
|
||||||
break;
|
break;
|
||||||
case 0x8: //30m & 20m
|
case 0x8: //30m & 20m
|
||||||
selectedBand = B0100;
|
|
||||||
myBand = F("30/20m");
|
|
||||||
selected_antenna = 1;
|
selected_antenna = 1;
|
||||||
|
Serial.println("HRBN5;"); // sets the Hardrock-50 to 20m
|
||||||
break;
|
break;
|
||||||
case 0x10: //17m & 15m
|
case 0x10: //17m & 15m
|
||||||
selectedBand = B1000;
|
|
||||||
myBand = F("17/15m");
|
|
||||||
selected_antenna = 1;
|
selected_antenna = 1;
|
||||||
|
Serial.println("HRBN3;"); // sets the Hardrock-50 to 15m
|
||||||
break;
|
break;
|
||||||
case 0x20: //12m & 10m
|
case 0x20: //12m & 10m
|
||||||
selectedBand = B1000;
|
|
||||||
myBand = F("12/10m");
|
|
||||||
selected_antenna = 1;
|
selected_antenna = 1;
|
||||||
|
Serial.println("HRBN1;"); // sets the Hardrock-50 to 10m
|
||||||
|
break;
|
||||||
|
case 0x00: //6m
|
||||||
|
selected_antenna = 1;
|
||||||
|
Serial.println("HRBN0;"); // sets the Hardrock-50 to 6m
|
||||||
break;
|
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.setFont(u8g2_font_t0_17_tr);
|
|
||||||
String a = "Antenna: " + String(selected_antenna);
|
|
||||||
u8g2.drawStr(5,57,a.c_str()); //Space for future uses
|
|
||||||
delay(2);
|
|
||||||
} while ( u8g2.nextPage() );
|
|
||||||
u8g2.sendBuffer();
|
|
||||||
}
|
|
||||||
|
Loading…
Reference in New Issue
Block a user