82 lines
2.8 KiB
C++
82 lines
2.8 KiB
C++
#ifndef ES32A08_h
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#define ES32A08_h
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#include "Arduino.h"
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// ######### BOARD CONFIG REGION ##########################################
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#define PWR_LED_PIN 15 // "PWR" board Led
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// 74HC595D shift register pins (Relay + 4x7-Seg disp.)
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#define DATA_PIN 13
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#define LATCH_PIN 14
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#define CLOCK_PIN 27
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#define OE_PIN 4
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// 74HC165 shift register pins (Digital inputs)
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#define LOAD165_PIN 16
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#define CLK165_PIN 17
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#define DATA165_PIN 5
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// ######### USER CONFIG REGION ###########################################
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#define RESET_RELAY_ON false // State of the relays at boot
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#define RESET_LED_ON true // State of the "PWR" LED at boot
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#define DIGIT_PERS 1000 // uS to hold the digit lit (1000=1ms default)
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// ######### CLASS DEFINITION REGION #####################################
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class ES32A08 {
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public:
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void begin(); // Initialize the board and reset it
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float readAnalogmA(int channel); // Read single 4-20mA input
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float readAnalogVoltage(int channel); // Read single 0-10V input
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int rawReadAnalogVoltage(int channel); // Raw read single 0-10V input
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bool readButton(int buttonNumber); // Read single button state
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bool readDigitalInput(int inputNumber); // Read single digital input
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uint8_t readDigitalInputs(); // Read all digital inputs
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void setRelay(int relay, bool state); // Set single relay
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void setRelays(unsigned long relayStates); // Set all relays (i.e. 0b00000000)
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void setPWRLED(bool state); // Set "PWR" onboard LED
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void reset(); // Open relays and clear display
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void clearDisplay(); // Clear entire 7-seg display
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void display(int number); // Show a number on the 4-digit display
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void display(float number); // Show a float on the 4-digit display
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void display(const char *message); // Show a 4-char message on the display
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static void
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updateRegisters(void *instance); // Task to continuosly feed the registers
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private:
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byte displayBuffer[4]; // Buffer for the 4-digit display
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byte currentRelays; // Relays status
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byte currentDigits; // Selected digit(s)
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byte currentSegments; // Segments to display
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uint8_t charToSegments(char c); // Char to segment conversion by LUT
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void sendToShiftRegister(); // Send relays and display settings to the s.r.
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// Pin definitions
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const int mAInputPins[4] = {36, 39, 34, 35}; // In1 a In4 for 4-20mA
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const int voltageInputPins[4] = {32, 33, 25, 26}; // V1 a V4 for 0-10V
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const int buttonPins[4] = {18, 19, 21, 23}; // Onboard buttons 1-4
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// 7-segment display digit selection
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const byte digitNumber[8] = {
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0b11111111, // none.
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0b11111110, // digit 1.
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0b11111101, // digit 2.
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0b11111011, // digit 3.
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0b11110111, // digit 4.
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0b11111100, // digit 1+2.
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0b11111000, // digit 1+2+3.
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0b11110000 // digit 1+2+3+4.
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};
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};
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#endif |