6 Way wall touch switch
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This is a rough integration of the code with MySensors.
It sends messages back and forth, so if a button is touched it turns on the corresponding device on the controller and if the switch is turned on the controller, the touch leds are updated accordingly#include "mpr121.h" #include <Wire.h> #include "LedControlMS.h" #include <MySensor.h> #include <SPI.h> #include <MyBuffer.h> #define CHILD_ID1 1 // first child #define CHILD_NUM 6 // number of switches //define working pins #define BUZZER 7 // buzzer pin #define DIN 6 // pin 6 is connected to the DataIn #define CLK 4 // pin 4 is connected to the CLK #define LOD 8 // pin 8 is connected to LOAD #define IRQ 3 // irq pin for touch control #define BAKLIT 5 // pin PWM for backlight leds // ********* MyBuffer *********************************************************** MyBuffer buffer; // define a new buffer long previousMillis = 0; // will store last time buffer was processed long interval = 1000; // interval at which to check buffer // ****************************************************************************** MySensor gw; //define a new led control LedControl lc=LedControl(DIN,CLK,LOD,1); //int irqpin = 3; // Digital pin IRQ boolean touchStates[12]; //to keep track of the previous touch states boolean touchMemory[12]; //to keep track of the touch switch states // correspondence between touch and led pins int mapping[2][6]={{0,1,2,3,4,5} // touch pins ,{1,0,2,5,4,3}}; // led pins int sound = 500; int touchDelay=500; void setup(){ // init LED backlight pinMode(BAKLIT, OUTPUT); analogWrite(BAKLIT, 5); pinMode(IRQ, INPUT); digitalWrite(IRQ, HIGH); //enable pullup resistor Wire.begin(); pinMode(BUZZER, OUTPUT); for (int i=0; i < 12; i++){ touchMemory[i]=false; } mpr121_setup(); //initialize MAX72XX lc.shutdown(0,false); lc.setIntensity(0,15); lc.clearDisplay(0); gw.begin(incomingMessage, AUTO); //do not make relay node gw.sendSketchInfo("WallTouch", "1.0"); for (int i=0; i<CHILD_NUM;i++) { gw.present(CHILD_ID1+i, S_LIGHT); // Set touch button leds to last known state (using eeprom storage) touchMemory[i] = gw.loadState(i)?true:false; setLed(mapping[1][i],touchMemory[i]); } } void loop(){ gw.process(); //watch for touch events readTouchInputs(); //check for buffer items once in a while checkTime(); } void checkTime(){ unsigned long currentMillis = millis(); if(currentMillis - previousMillis > interval) { previousMillis = currentMillis; processBuffer(); } } void incomingMessage(const MyMessage &message) { buffer.push(message.sensor,message.type,message.getString()); } //gets message from buffer if exists void processBuffer(){ if(!buffer.isEmpty()){ String msg=buffer.pop(); int mIndex = msg.indexOf(';'); int secondmIndex = msg.indexOf(';', mIndex+1); String firstValue = msg.substring(0, mIndex); String secondValue = msg.substring(mIndex+1, secondmIndex); String thirdValue = msg.substring(secondmIndex+1); int sensor = firstValue.toInt(); int type = secondValue.toInt(); String data = thirdValue; Serial.println(" >> Process MSG: s:"+ firstValue +", t:"+secondValue+", d:"+thirdValue); processMsg(sensor, type, data); } } //process message from queue void processMsg(int sensor, int type, String data){ boolean msg; switch(type){ case V_LIGHT: //comando para 1 rele msg=data.toInt()?1:0; // Store state in eeprom gw.saveState(sensor, msg); // Write some debug info Serial.print("--> Incoming change for child:"); Serial.print(sensor-1); Serial.print(", New status: "); Serial.println(msg); setTouchButton(sensor-1); break; } } void setTouchButton(int pressed){ MyMessage msg(CHILD_ID1+pressed,V_LIGHT); Serial.print("pin "); Serial.print(pressed); Serial.print(" was just touched"); Serial.print(", turning: "); touchMemory[pressed]=touchMemory[pressed]?false:true; gw.saveState(pressed, touchMemory[pressed]); Serial.println(touchMemory[pressed]?"ON":"OFF"); setLed(mapping[1][pressed],touchMemory[pressed]?true:false); gw.send(msg.set(touchMemory[pressed] ? 1 : 0)); touchSound(); } void setLed(int led, boolean lit){ lc.setLed(0,0,led,lit); } void readTouchInputs(){ if(!checkInterrupt()){ //read the touch state from the MPR121 Wire.requestFrom(0x5A,2); byte LSB = Wire.read(); byte MSB = Wire.read(); uint16_t touched = ((MSB << 8) | LSB); //16bits that make up the touch states for (int i=0; i < 12; i++){ // Check what electrodes were pressed if(touched & (1<<i)){ if(touchStates[i] == 0){ //pin i was just touched setTouchButton(i); delay(touchDelay); }else if(touchStates[i] == 1){ //pin i is still being touched } touchStates[i] = 1; }else{ /* if(touchStates[i] == 1){ Serial.print("pin "); Serial.print(i); Serial.println(" is no longer being touched"); //pin i is no longer being touched }*/ touchStates[i] = 0; } } } } void touchSound(){ tone(BUZZER, sound, 3); } void mpr121_setup(void){ set_register(0x5A, ELE_CFG, 0x00); // Section A - Controls filtering when data is > baseline. set_register(0x5A, MHD_R, 0x01); set_register(0x5A, NHD_R, 0x01); set_register(0x5A, NCL_R, 0x00); set_register(0x5A, FDL_R, 0x00); // Section B - Controls filtering when data is < baseline. set_register(0x5A, MHD_F, 0x01); set_register(0x5A, NHD_F, 0x01); set_register(0x5A, NCL_F, 0xFF); set_register(0x5A, FDL_F, 0x02); // Section C - Sets touch and release thresholds for each electrode set_register(0x5A, ELE0_T, TOU_THRESH); set_register(0x5A, ELE0_R, REL_THRESH); set_register(0x5A, ELE1_T, TOU_THRESH); set_register(0x5A, ELE1_R, REL_THRESH); set_register(0x5A, ELE2_T, TOU_THRESH); set_register(0x5A, ELE2_R, REL_THRESH); set_register(0x5A, ELE3_T, TOU_THRESH); set_register(0x5A, ELE3_R, REL_THRESH); set_register(0x5A, ELE4_T, TOU_THRESH); set_register(0x5A, ELE4_R, REL_THRESH); set_register(0x5A, ELE5_T, TOU_THRESH); set_register(0x5A, ELE5_R, REL_THRESH); /* set_register(0x5A, ELE6_T, TOU_THRESH); set_register(0x5A, ELE6_R, REL_THRESH); set_register(0x5A, ELE7_T, TOU_THRESH); set_register(0x5A, ELE7_R, REL_THRESH); set_register(0x5A, ELE8_T, TOU_THRESH); set_register(0x5A, ELE8_R, REL_THRESH); set_register(0x5A, ELE9_T, TOU_THRESH); set_register(0x5A, ELE9_R, REL_THRESH); set_register(0x5A, ELE10_T, TOU_THRESH); set_register(0x5A, ELE10_R, REL_THRESH); set_register(0x5A, ELE11_T, TOU_THRESH); set_register(0x5A, ELE11_R, REL_THRESH); */ // Section D // Set the Filter Configuration // Set ESI2 set_register(0x5A, FIL_CFG, 0x12); //12 mas menos //set_register(0x5A, FIL_CFG, 0x24); //segundo filtro // set_register(0x5A, 0x5C, 0x28); // primer filtro (mio) //ajuste de la corrente de carga de cada pin /* set_register(0x5A, 0x5F, CDC_sensor[0]); //el 0 set_register(0x5A, 0x60, CDC_sensor[1]); //el 1 set_register(0x5A, 0x61, CDC_sensor[2]); //el 2 set_register(0x5A, 0x62, CDC_sensor[3]); //el 3 set_register(0x5A, 0x63, CDC_sensor[4]); //el 4 set_register(0x5A, 0x64, CDC_sensor[5]); //el 5 */ // Section E // Electrode Configuration // Set ELE_CFG to 0x00 to return to standby mode set_register(0x5A, ELE_CFG, 0x0C); // Enables all 12 Electrodes // Section F // Enable Auto Config and auto Reconfig /*set_register(0x5A, ATO_CFG0, 0x0B); set_register(0x5A, ATO_CFGU, 0xC9); // USL = (Vdd-0.7)/vdd*256 = 0xC9 @3.3V set_register(0x5A, ATO_CFGL, 0x82); // LSL = 0.65*USL = 0x82 @3.3V set_register(0x5A, ATO_CFGT, 0xB5);*/ // Target = 0.9*USL = 0xB5 @3.3V set_register(0x5A, ELE_CFG, 0x0C); } boolean checkInterrupt(void){ return digitalRead(IRQ); } void set_register(int address, unsigned char r, unsigned char v){ Wire.beginTransmission(address); Wire.write(r); Wire.write(v); Wire.endTransmission(); } -
I got it finally installed.
This is what it looks like.I'm working on a pcb smaller version. I'll keep you posted.
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@ferpando said:
LedControlMS
Can you share to me your project, pls?
How to cônnect 6 buttons with 6 leds?
sorry i newbie.
Thanks@quocanhcgd
I'll post the project when I finish the PCB and everything is a bit more mature.
I already uploaded the sketch I used here.
I made it with a max7219 led driver but you could also use a shift register to control the leds with minimal modifications -
@quocanhcgd
I'll post the project when I finish the PCB and everything is a bit more mature.
I already uploaded the sketch I used here.
I made it with a max7219 led driver but you could also use a shift register to control the leds with minimal modifications -
Any News?
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I also built a 6way wall switch. It does not have lights but is battery powered and very well documented. It is kind of rocket science because it has a 3d printed housing and a self etched pcb but maybe it helps anyway at least for the (very easy) source code:
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I also built a 6way wall switch. It does not have lights but is battery powered and very well documented. It is kind of rocket science because it has a 3d printed housing and a self etched pcb but maybe it helps anyway at least for the (very easy) source code:
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Is there a chance that you can share your full setup? I like your wall touch switch very much. :smile:
@Didi
YesI will when I have the second version ready.
This is a bit messy :-)
I'll keep you posted -
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@Didi
YesI will when I have the second version ready.
This is a bit messy :-)
I'll keep you posted -
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@Didi
YesI will when I have the second version ready.
This is a bit messy :-)
I'll keep you posted -
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