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implementing MFRC522 via I2C BUS on ESP32-A1S

master
kkloesener 5 years ago
parent
893b8ada1e
commit
cde3fe6524
1 changed files with 51 additions and 49 deletions
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  1. 90
      src/main.cpp

90
src/main.cpp
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@ -7,7 +7,7 @@
// #define HAL 2 // HAL 1 = LoLin32, 2 = AI AudioKit - no need to define when using platformIO
#define MFRC522_BUS 2 // If MFRC522 should be connected to I2C-Port(2) or SPI(1)
//#define DISPLAY_I2C // If external Display via I2C connected - tested with SH1106_128X64_NONAME
// #define HEADPHONE_ADJUST_ENABLE // Used to adjust (lower) volume for optional headphone-pcb (refer maxVolumeSpeaker / maxVolumeHeadphone)
#define HEADPHONE_ADJUST_ENABLE // Used to adjust (lower) volume for optional headphone-pcb (refer maxVolumeSpeaker / maxVolumeHeadphone)
//#define SINGLE_SPI_ENABLE // If only one SPI-instance should be used instead of two (not yet working!)
//#define SHUTDOWN_IF_SD_BOOT_FAILS // Will put ESP to deepsleep if boot fails due to SD. Really recommend this if there's in battery-mode no other way to restart ESP! Interval adjustable via deepsleepTimeAfterBootFails.
@ -25,9 +25,6 @@
#include "BluetoothA2DPSink.h"
#endif
#include "Audio.h"
#if (HAL == 2)
#include "AC101.h"
#endif
#ifdef DISPLAY_I2C
#include <U8g2lib.h>
#endif
@ -133,6 +130,9 @@ char *logBuf = (char*) calloc(serialLoglength, sizeof(char)); // Buffer for all
#endif
#endif
// HeadPhoneDetect
#define HP_DETECT 22 // Detects if there's a plug in the headphone jack or not
// END HAL 1
#elif (HAL == 2)
@ -145,36 +145,43 @@ char *logBuf = (char*) calloc(serialLoglength, sizeof(char)); // Buffer for all
// GPIO used to trigger transistor-circuit / RFID-reader
#define POWER 19
#include "AC101.h"
static TwoWire i2cBusOne = TwoWire(0);
static AC101 ac(i2cBusOne);
#if (MFRC522_BUS == 1)
// GPIOs (RFID-readercurrentRfidTagId)
#include <MFRC522.h> // Custom Lib needed
#define MFRC522_RST_PIN 35 // 14-pin-header
#define MFRC522_CS_PIN 12 // JT_MTDI
extern SPIClass SPI_MFRC;
MFRC522_SPI mfrcDevice = MFRC522_SPI(MFRC522_CS_PIN, MFRC522_RST_PIN);
MFRC522 mfrc522(RFID_CS, RST_PIN);
#elif (MFRC522_BUS == 2)
#include <Wire.h>
#include <MFRC522_I2C.h>
#define MFRC522_RST_PIN 12 // needed for i2c-comm
#define MFRC522_RST_PIN 12 // needed for i2c-comm MTDI on JTAG
#define MFRC522_ADDR 0x28 // default Address of MFRC522
// second I2C GPIOs
#define ext_IIC_CLK 23 // 14-pin-header
#define ext_IIC_DATA 18 // 14-pin-header
static TwoWire i2cBusTwo = TwoWire(1);
static MFRC522 mfrc522(MFRC522_ADDR, MFRC522_RST_PIN, i2cBusTwo);
#endif
// DAC (internal)
#define I2S_DSIN 25 // internal
// #define I2S_DSIN 25 // internal - not used
// #define I2S_MCLK 0 // internal - not used
#define I2S_BCLK 27 // internal
#define I2S_LRC 26 // internal
#define I2S_MCLK 0 // internal
#define I2S_DOUT 35 // internal
#define I2S_DOUT 25 // internal
// I2C GPIOs
#define IIC_CLK 32 // internal
#define IIC_DATA 33 // internal
// Amp enable
#define GPIO_PA_EN 21 // internal
#define GPIO_PA_EN GPIO_NUM_21 // internal
#define GPIO_SEL_PA_EN GPIO_SEL_21
// GPIOs (Rotary encoder)
#define DREHENCODER_CLK 5
@ -189,15 +196,14 @@ MFRC522_SPI mfrcDevice = MFRC522_SPI(MFRC522_CS_PIN, MFRC522_RST_PIN);
// GPIOs (LEDs)
#define LED_PIN 23
// HeadPhoneDetect
#define HP_DETECT 39 // Detects if there's a plug in the headphone jack or not
// END HAL 2
#endif
// GPIO to detect if headphone was plugged in (pulled to GND)
#ifdef HEADPHONE_ADJUST_ENABLE
// HAL 2
#define HEADPHONE_PLUGGED_IN 39 // internal
// HAL 1
#define HP_DETECT 22 // Detects if there's a plug in the headphone jack or not
uint16_t headphoneLastDetectionDebounce = 1000; // Debounce-interval in ms when plugging in headphone
// Internal values
@ -1290,21 +1296,6 @@ size_t nvsRfidWriteWrapper (const char *_rfidCardId, const char *_track, const u
// Function to play music as task
void playAudio(void *parameter) {
static Audio audio;
#if (HAL == 2)
static AC101 ac;
static bool currentHeadphoneState = digitalRead(HEADPHONE_PLUGGED_IN);
static bool lastHeadphoneState = currentHeadphoneState;
static uint32_t lastHeadphoneStateTimestamp = 0;
while (!ac.begin(IIC_DATA, IIC_CLK)) {
Serial.printf("Failed!\n");
delay(1000);
}
pinMode(GPIO_PA_EN, OUTPUT);
digitalWrite(GPIO_PA_EN, HIGH);
#endif
audio.setPinout(I2S_BCLK, I2S_LRC, I2S_DOUT);
audio.setVolume(initVolume);
@ -1653,18 +1644,6 @@ void playAudio(void *parameter) {
// Instructs RFID-scanner to scan for new RFID-tags
void rfidScanner(void *parameter) {
#if (MFRC522_BUS == 1)
static MFRC522 mfrc522(RFID_CS, RST_PIN);
#elif (MFRC522_BUS == 2)
TwoWire i2cBus = TwoWire(1);
i2cBus.begin(ext_IIC_DATA, ext_IIC_CLK, 40000);
static MFRC522 mfrc522(MFRC522_RST_PIN , 0x28, i2cBus);
#endif
mfrc522.PCD_Init();
delay(50);
mfrc522.PCD_DumpVersionToSerial(); // Show details of PCD - MFRC522 Card Reader detail
delay(4);
loggerNl((char *) FPSTR(rfidScannerReady), LOGLEVEL_DEBUG);
byte cardId[cardIdSize];
char *cardIdString;
@ -2803,7 +2782,6 @@ bool getWifiEnableStatusFromNVS(void) {
return wifiStatus;
}
// Writes to NVS whether WiFi should be activated (not effective until next reboot!)
bool writeWifiStatusToNVS(bool wifiStatus) {
if (!wifiStatus) {
@ -2826,6 +2804,7 @@ bool writeWifiStatusToNVS(bool wifiStatus) {
return true;
}
}
return true;
}
@ -3373,12 +3352,36 @@ void setup() {
);
#endif
#if (HAL == 2)
i2cBusOne.begin(IIC_DATA, IIC_CLK, 40000);
while (not ac.begin()) {
Serial.printf("AC101 Failed!\n");
delay(1000);
}
Serial.printf("AC101 via I2C - OK!\n");
pinMode(22, OUTPUT);
digitalWrite(22, HIGH);
pinMode(GPIO_PA_EN, OUTPUT);
digitalWrite(GPIO_PA_EN, HIGH);
Serial.printf("Built-In Amplifier enabled\n");
#endif
#if (MFRC522_BUS == 1)
#ifndef SINGLE_SPI_ENABLE
SPI.begin();
#endif
#elif (MFRC522_BUS == 2)
i2cBusTwo.begin(ext_IIC_DATA, ext_IIC_CLK, 40000);
#endif
mfrc522.PCD_Init();
delay(50);
mfrc522.PCD_DumpVersionToSerial(); // Show details of PCD - MFRC522 Card Reader detail
loggerNl((char *) FPSTR(rfidScannerReady), LOGLEVEL_DEBUG);
// Init uSD-SPI
pinMode(SPISD_CS, OUTPUT);
digitalWrite(SPISD_CS, HIGH);
@ -3692,7 +3695,6 @@ void setup() {
wServer.onNotFound(notFound);
wServer.begin();
}*/
bootComplete = true;
Serial.print(F("Free heap: "));

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