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43iNCHMai2Touch202211111446Fixed/Mai2Touch202211111446Fixed.ino

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+//Fixed 202211111446(1550)
+
+
+
+//#define SerialDevice SerialUSB //32u4,samd21
+#define SerialDevice Serial //esp8266
+
+// bitWrite 不支持 uint64_t，以下定义来自 https://forum.arduino.cc/t/bitset-only-sets-bits-from-0-to-31-previously-to-15/193385/5
+#define bitSet64(value, bit) ((value) |= (bit<32?1UL:1ULL) <<(bit))
+#define bitClear64(value, bit) ((value) &= ~(bit<32?1UL:1ULL) <<(bit))
+#define bitWrite64(value, bit, bitvalue) (bitvalue ? bitSet64(value, bit) : bitClear64(value, bit))
+#define Threshold 40 //触摸触发阈值
+
+#include "Adafruit_MPR121.h"//mpr121定义
+Adafruit_MPR121 mprA, mprB, mprC;
+#define CLAMP(val) (val < 0 ? 0 : (val > 255 ? 255 : val))
+uint8_t packet[6];
+uint8_t len = 0;//当前接收的包长度
+#define sA1(x) bitWrite(TPD, 0, x)//设置 sensor
+#define sB1(x) bitWrite(TPD, 8, x)
+#define sC1(x) bitWrite(TPD, 16, x)
+#define sD1(x) bitWrite(TPD, 18, x)
+#define sE1(x) bitWrite(TPD, 26, x)
+enum {
+  commandRSET  = 0x45,//E
+  commandHALT  = 0x4C,//L
+  commandSTAT  = 0x41,//A
+  commandRatio = 0x72,//r
+  commandSens  = 0x6B,//k
+};
+
+bool Conditioning = 1;
+void setup() {
+  SerialDevice.begin(9600);
+  SerialDevice.setTimeout(0);
+  uint8_t TOUCH = 1;//按下敏感度
+  uint8_t RELEASE = 1;//松开敏感度
+  mprA.begin(0x5A, &Wire);
+  mprB.begin(0x5C, &Wire);
+  mprC.begin(0x5B, &Wire);
+  Wire.setClock(800000);
+
+}
+
+void loop() {
+  Recv();
+  Conditioning ? void() : TouchSend();//只有不处于设定模式时才发送触摸数据
+}
+void MprSetup(Adafruit_MPR121 cap) {//mpr121自定义初始化 25
+  cap.writeRegister(MPR121_SOFTRESET, 0x63);//MprReset
+  delay(1);
+  cap.writeRegister(MPR121_ECR, 0x0);//MprStop
+  cap.writeRegister(MPR121_MHDR, 1);// 上升最大变化值
+  cap.writeRegister(MPR121_NHDR, 16);//上升幅度
+  cap.writeRegister(MPR121_NCLR, 4);//上升修正样本个数
+  cap.writeRegister(MPR121_FDLR, 0);//修正前等待样本个数
+  cap.writeRegister(MPR121_MHDF, 4);//下降最大变化值
+  cap.writeRegister(MPR121_NHDF, 1);//下降幅度
+  cap.writeRegister(MPR121_NCLF, 16);//下降修正样本个数
+  cap.writeRegister(MPR121_FDLF, 4);//修正前等待样本个数
+  cap.writeRegister(MPR121_NHDT, 0);
+  cap.writeRegister(MPR121_NCLT, 0);
+  cap.writeRegister(MPR121_FDLT, 0);
+  cap.setThresholds(Threshold, Threshold); //设置触发阈值和充放电流时间
+  cap.writeRegister(MPR121_DEBOUNCE, (4 << 4) | 2); //去抖动 释放等待4，按下等待2
+  cap.writeRegister(MPR121_CONFIG1, 16);//0x10
+  cap.writeRegister(MPR121_CONFIG2, 1 << 5);
+  cap.writeRegister(MPR121_AUTOCONFIG0, 0x01);
+  cap.writeRegister(MPR121_AUTOCONFIG1, (1 << 7));
+  cap.writeRegister(MPR121_UPLIMIT, 202);//上限，((Vdd - 0.7)/Vdd) * 256
+  cap.writeRegister(MPR121_TARGETLIMIT, 182);//目标，UPLIMIT * 0.9
+  cap.writeRegister(MPR121_LOWLIMIT, 131);//下限，UPLIMIT * 0.65
+  cap.writeRegister(MPR121_ECR, B10000000 + 12);//MprRun
+}
+void cmd_RSET() {//Reset
+  MprSetup(mprA);
+  MprSetup(mprB);
+  MprSetup(mprC);
+
+
+
+}
+void cmd_HALT() {//Start Conditioning Mode
+  mprA.writeRegister(MPR121_ECR, 0x0);//MprStop
+  mprB.writeRegister(MPR121_ECR, 0x0);
+  mprC.writeRegister(MPR121_ECR, 0x0);
+  Conditioning = true;
+}
+
+void cmd_Ratio() {//Set Touch Panel Ratio
+  SerialDevice.write((byte)'(');
+  SerialDevice.write((byte)packet[1]);//L,R
+  SerialDevice.write((byte)packet[2]);//sensor
+  SerialDevice.write((byte)'r');
+  SerialDevice.write((byte)packet[4]);//Ratio
+  SerialDevice.write((byte)')');
+}
+
+void cmd_Sens() {//Set Touch Panel Sensitivity
+  SerialDevice.write((byte)'(');
+  SerialDevice.write((byte)packet[1]);//L,R
+  SerialDevice.write((byte)packet[2]);//sensor
+  SerialDevice.write((byte)'k');
+  SerialDevice.write((byte)packet[4]);//Sensitivity
+  SerialDevice.write((byte)')');
+}
+
+void cmd_STAT() { //End Conditioning Mode
+  Conditioning = false;
+  mprA.writeRegister(MPR121_ECR, B10000000 + 12);//MprRun
+  mprB.writeRegister(MPR121_ECR, B10000000 + 12);
+  mprC.writeRegister(MPR121_ECR, B10000000 + 12);
+}
+
+void Recv() {
+  while (SerialDevice.available()) {
+    uint8_t r = SerialDevice.read();
+    if (r == '{') {
+      len = 0;
+    }
+    if (r == '}') {
+      break;
+    }
+    packet[len++] = r;
+  }
+  if (len == 5) {
+    switch (packet[3]) {
+      case commandRSET:
+        cmd_RSET();
+        break;
+      case commandHALT:
+        cmd_HALT();
+        break;
+      case commandRatio:
+        cmd_Ratio();
+        break;
+      case commandSens:
+        cmd_Sens();
+        break;
+      case commandSTAT:
+        cmd_STAT();
+        break;
+    }
+    len = 0;
+    memset(packet, 0, 6);
+  }
+}
+
+void TouchSend() {
+
+  uint64_t TouchData = 0; //触摸数据包
+
+  for (int i = 9; i >= 0; i--) { // E8 ~ D7
+    TouchData = (TouchData | (int)(mprC.baselineData(i) - mprC.filteredData(i) + 20) > Threshold) << 1;
+  }
+  for (int i = 11; i >= 0; i--) { // D6 ~ B5
+    TouchData = (TouchData | (int)(mprB.baselineData(i) - mprB.filteredData(i) + 20) > Threshold) << 1;
+  }
+  for (int i = 11; i >= 0; i--) { // B4 ~ A1
+    TouchData = (TouchData | (int)(mprA.baselineData(i) - mprA.filteredData(i) + 20) > Threshold) << 1;
+  }
+  TouchData >>= 1;
+
+  SerialDevice.write((byte)'(');
+  for (uint8_t r = 0; r < 7; r++) {
+    SerialDevice.write((byte)TouchData & B11111);
+    TouchData >>= 5;
+  }
+  SerialDevice.write((byte)')');
+}