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  3. Solar Pannel and LiOn or Lipo

Solar Pannel and LiOn or Lipo

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  • epierreE epierre

    so the same without sensor nor mysensors... 30 secs fine 40 secs dead...

    I've removed the radio chipset, same behavior...

    /*
     
    #include <SPI.h>
    
    #include <Wire.h> 				// I2C
    
    
    #define LTC4067_CHRG_PIN	A1		//analog input A1 on ATmega 328 is /CHRG signal from LTC4067
    #define batteryVoltage_PIN	A0		//analog input A0 on ATmega328 is battery voltage ( /2)
    #define solarVoltage_PIN	A2		//analog input A2 is solar cell voltage (/ 2)
    #define solarCurrent_PIN	A6		//analog input A6 is input current ( I=V/Rclprog x 1000 )
    #define batteryChargeCurrent_PIN	A7	//analog input A7 is battery charge current ( I=V/Rprog x 1000 )
    #define LTC4067_SUSPEND_PIN	9		//digital output D9 - drive it high to put LTC4067 in SUSPEND mode
    
    const float VccMin        = 1.0*3.5;  // Minimum expected Vcc level, in Volts. Example for 1 rechargeable lithium-ion.
    const float VccMax        = 1.0*4.2;  // Maximum expected Vcc level, in Volts. 
    
    #define LIGHT_SENSOR_ANALOG_PIN 3   // Digital input did you attach your soil sensor.  
    #define CHILD_ID_LIGHT 0   // Id of the sensor child
    #define BATT_CHILD_ID 10
    #define SOLAR_CHILD_ID 11
    
    // PIN Radio
    #define RADIO_CE_PIN    7       // radio chip enable
    #define RADIO_SS_PIN    8      // CS SS serial select
    
    float lastBattVoltage;
    float lastBattCurrent;
    float lastSolarVoltage;
    float lastSolarCurrent;
    int lastBattPct = 0;
    uint16_t lastlux;
    float VccReference = 3.3 ;				// voltage reference for measurement, definitive init in setup
    
    
    unsigned long SLEEP_TIME = 40*1000;  // sleep time between reads (seconds * 1000 milliseconds)
    
    int lastSoilValue = -1;
    
    void setup()  
    { 
     
      Serial.begin(115200);
      // use VCC (3.3V) reference
      analogReference(DEFAULT);								// default external reference = 3.3v for Ceech board
      VccReference = 3.323 ;									// measured Vcc input (on board LDO)
      pinMode(LTC4067_SUSPEND_PIN, OUTPUT);					// suspend of Lion charger set
      digitalWrite(LTC4067_SUSPEND_PIN,LOW);   			//  active (non suspend) at start
    
    }
     
    void loop()     
    {     
    
      sendVoltage();
      
        
      // Power down the radio
     delay(SLEEP_TIME);
    }
    
    void sendVoltage(void)
    // battery and charging values
    {
    	// get Battery Voltage & charge current
    	float batteryVoltage = ((float)analogRead(batteryVoltage_PIN)* VccReference/1024) * 2;	// actual voltage is double
    	Serial.print("Batt: ");
    	Serial.print(batteryVoltage);
    	Serial.print("V ; ");
    	float batteryChargeCurrent = ((float)analogRead(batteryChargeCurrent_PIN) * VccReference/1024)/ 2.5 ; // current(A) = V/Rprog(kohm)
    	Serial.print(batteryChargeCurrent);
    	Serial.println("A ");
    
       
    	// get Solar Voltage & charge current
    	float solarVoltage = ((float)analogRead(solarVoltage_PIN)/1024 * VccReference) * 2 ;		// actual voltage is double
    	Serial.print("Solar: ");
    	Serial.print(solarVoltage);
    	Serial.print("V ; ");
    	// get Solar Current
    	float solarCurrent = ((float)analogRead(solarCurrent_PIN)/1024 * VccReference)/ 2.5;		// current(A) = V/Rclprog(kohm)
    	Serial.print(solarCurrent);
    	Serial.print(" A; charge: ");
    	Serial.println(digitalRead(LTC4067_CHRG_PIN)?"No":"Yes");
    	
    	// send battery percentage for node
    	int battPct = 1 ;
    	if (batteryVoltage > VccMin){
    		battPct = 100.0*(batteryVoltage - VccMin)/(VccMax - VccMin);
    	}
    	Serial.print("BattPct: ");
    	Serial.print(battPct);
    	Serial.println("% ");
    
    	
    }
    
    AWIA Offline
    AWIA Offline
    AWI
    Hero Member
    wrote on last edited by
    #30

    @epierre this sounds really weird. The delay() you used in this sketch does not sleep anything but just takes an active break. Can you measure the supply voltage on vcc to determine what is happening?

    1 Reply Last reply
    0
    • epierreE Offline
      epierreE Offline
      epierre
      Hero Member
      wrote on last edited by
      #31

      voltage was made through the ftdi...

      I'll check again, but an interresting result, the unit with sending problems works well when used with the amplified nrf24l !!! ??? !!!

      I've plugged it too with a 4000mAh LiPo battery I just received. I'll try later to play with sleep or delay

      2015-07-09 15:14:04 15 10 1 0 38 4.128
      2015-07-09 15:14:04 15 10 1 0 39 0.001298
      2015-07-09 15:14:05 15 11 1 0 38 4.524
      2015-07-09 15:14:06 15 11 1 0 39 0.003894
      2015-07-09 15:14:06 15 255 3 0 0 89
      

      z-wave - Vera -&gt; Domoticz
      rfx - Domoticz &lt;- MyDomoAtHome &lt;- Imperihome
      mysensors -&gt; mysensors-gw -&gt; Domoticz

      AWIA 1 Reply Last reply
      0
      • epierreE epierre

        voltage was made through the ftdi...

        I'll check again, but an interresting result, the unit with sending problems works well when used with the amplified nrf24l !!! ??? !!!

        I've plugged it too with a 4000mAh LiPo battery I just received. I'll try later to play with sleep or delay

        2015-07-09 15:14:04 15 10 1 0 38 4.128
        2015-07-09 15:14:04 15 10 1 0 39 0.001298
        2015-07-09 15:14:05 15 11 1 0 38 4.524
        2015-07-09 15:14:06 15 11 1 0 39 0.003894
        2015-07-09 15:14:06 15 255 3 0 0 89
        
        AWIA Offline
        AWIA Offline
        AWI
        Hero Member
        wrote on last edited by
        #32

        @epierre said:

        voltage was made through the ftdi...

        Are you powering or measuring the unit from ftdi? You should only use the on-board power supply.

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        • epierreE Offline
          epierreE Offline
          epierre
          Hero Member
          wrote on last edited by epierre
          #33

          Hello,

          since I have 2 units, I have one on battery/solar panel and the other with issues on radio through ftdi else I couldn't see what it had to display...

          I'm off for a week, I'll do further testing after.

          Can you reproduce some part of the delay/speel issue ?

          z-wave - Vera -&gt; Domoticz
          rfx - Domoticz &lt;- MyDomoAtHome &lt;- Imperihome
          mysensors -&gt; mysensors-gw -&gt; Domoticz

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          • epierreE Offline
            epierreE Offline
            epierre
            Hero Member
            wrote on last edited by
            #34

            @awi @ceech what test should I do about those units:

            • delay test: what kind? what to watch ?
            • sleep test: what kind? what to watch ?
            • radio issue on one of the boards working only with amplified board, not with small one.

            The good news it although they pollute the radio by sending infos every 30s, they are still alive alone with the sun one week after.

            z-wave - Vera -&gt; Domoticz
            rfx - Domoticz &lt;- MyDomoAtHome &lt;- Imperihome
            mysensors -&gt; mysensors-gw -&gt; Domoticz

            C 1 Reply Last reply
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            • epierreE epierre

              @awi @ceech what test should I do about those units:

              • delay test: what kind? what to watch ?
              • sleep test: what kind? what to watch ?
              • radio issue on one of the boards working only with amplified board, not with small one.

              The good news it although they pollute the radio by sending infos every 30s, they are still alive alone with the sun one week after.

              C Offline
              C Offline
              ceech
              Hardware Contributor
              wrote on last edited by
              #35

              @epierre Try comparing the two boards side by side. You'll get an idea where the problem is.

              1 Reply Last reply
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              • epierreE Offline
                epierreE Offline
                epierre
                Hero Member
                wrote on last edited by epierre
                #36

                @ceech do you mean on SW or HW side ?

                HW:

                • I cannot plug the standard radio in one, only amplified works with it
                • same solar pannel 1W
                • different batteries, one is LiPo, the other is LiOn, but same behavior on delay/sleep seen on both
                • same lux sensor

                SW: they run the same software

                any idea ?

                z-wave - Vera -&gt; Domoticz
                rfx - Domoticz &lt;- MyDomoAtHome &lt;- Imperihome
                mysensors -&gt; mysensors-gw -&gt; Domoticz

                C 1 Reply Last reply
                0
                • epierreE epierre

                  @ceech do you mean on SW or HW side ?

                  HW:

                  • I cannot plug the standard radio in one, only amplified works with it
                  • same solar pannel 1W
                  • different batteries, one is LiPo, the other is LiOn, but same behavior on delay/sleep seen on both
                  • same lux sensor

                  SW: they run the same software

                  any idea ?

                  C Offline
                  C Offline
                  ceech
                  Hardware Contributor
                  wrote on last edited by
                  #37

                  @epierre Not enough power for the amplified radio, probably. Try adding bigger capacitor. In the hundreds of uF region.

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                  0
                  • epierreE Offline
                    epierreE Offline
                    epierre
                    Hero Member
                    wrote on last edited by
                    #38

                    @ceech are the radio 3.3V or not ? why should I need a capacitor and between what parts ?

                    z-wave - Vera -&gt; Domoticz
                    rfx - Domoticz &lt;- MyDomoAtHome &lt;- Imperihome
                    mysensors -&gt; mysensors-gw -&gt; Domoticz

                    AWIA 1 Reply Last reply
                    0
                    • epierreE epierre

                      @ceech are the radio 3.3V or not ? why should I need a capacitor and between what parts ?

                      AWIA Offline
                      AWIA Offline
                      AWI
                      Hero Member
                      wrote on last edited by
                      #39

                      @epierre I quess what @ceech meant is that the on board power supply is not equiped to power the amplified radio. I you put a large capacitor on the power lines (near to the radio) it will handle the power better.

                      I am still confused as to the problem you are having with the delay. I am able to reproduce your > 30second problem and it is driving me nuts. When I execute the 'original' sketch (including MySensors) it is working fine with gw.sleep() and times longer than 30 secs.

                      i will do some additional measurements...

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                      • epierreE Offline
                        epierreE Offline
                        epierre
                        Hero Member
                        wrote on last edited by
                        #40

                        @AWI @ceech I have tried this:
                        -I have removed the mysensor debug mode on the sensor

                        • I have removed the 4 x gw.send in the sendVoltage

                        For a sleep time of 31-32 this is fine , start to fail at 33...

                        Batt: 4.07V ; 0.00A 
                        Solar: 0.84V ; 0.00 A; charge: No
                        BattPct: 81% 
                        
                        

                        @AWI the one with amplified has a 4000mAh Lipo and the radio is perfect. Anyway simple radio does not work with it.

                        z-wave - Vera -&gt; Domoticz
                        rfx - Domoticz &lt;- MyDomoAtHome &lt;- Imperihome
                        mysensors -&gt; mysensors-gw -&gt; Domoticz

                        1 Reply Last reply
                        0
                        • epierreE Offline
                          epierreE Offline
                          epierre
                          Hero Member
                          wrote on last edited by
                          #41

                          @AWII @ceech any advancement on this ?

                          z-wave - Vera -&gt; Domoticz
                          rfx - Domoticz &lt;- MyDomoAtHome &lt;- Imperihome
                          mysensors -&gt; mysensors-gw -&gt; Domoticz

                          C 1 Reply Last reply
                          0
                          • epierreE epierre

                            @AWII @ceech any advancement on this ?

                            C Offline
                            C Offline
                            ceech
                            Hardware Contributor
                            wrote on last edited by
                            #42

                            @epierre Nope, sorry.

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                            0
                            • epierreE Offline
                              epierreE Offline
                              epierre
                              Hero Member
                              wrote on last edited by epierre
                              #43

                              @ceech I've ordered the wrong boards so without the solar panel... what should I do to complete the missing here ?

                              rq: your page https://www.mysensors.org/hardware/ceech is not present anymore in hardware @hek an error ?

                              z-wave - Vera -&gt; Domoticz
                              rfx - Domoticz &lt;- MyDomoAtHome &lt;- Imperihome
                              mysensors -&gt; mysensors-gw -&gt; Domoticz

                              epierreE 1 Reply Last reply
                              0
                              • hekH Offline
                                hekH Offline
                                hek
                                Admin
                                wrote on last edited by
                                #44

                                I asked @ceech to add it to the openhardware.io site instead. Guess he hasn't had time to do it yet.

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                                • epierreE epierre

                                  @ceech I've ordered the wrong boards so without the solar panel... what should I do to complete the missing here ?

                                  rq: your page https://www.mysensors.org/hardware/ceech is not present anymore in hardware @hek an error ?

                                  epierreE Offline
                                  epierreE Offline
                                  epierre
                                  Hero Member
                                  wrote on last edited by
                                  #45

                                  @epierre said:

                                  @ceech I've ordered the wrong boards so without the solar panel... what should I do to complete the missing here ?

                                  @ceech would adding these on the either ext or batt do the trick enough ?
                                  http://www.ebay.com/itm/5pcs-5V-1A-USB-18650-Lithium-Battery-Charging-Board-Charger-Module-Protection/221533778016?_trksid=p2050601.c100085.m2372&_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20140211132617%26meid%3D3aab1c92f1544168b6c5a3033e5d60fc%26pid%3D100085%26rk%3D2%26rkt%3D4%26mehot%3Dpp%26sd%3D300376371464%26clkid%3D3316748233453320960&_qi=RTM2247626

                                  z-wave - Vera -&gt; Domoticz
                                  rfx - Domoticz &lt;- MyDomoAtHome &lt;- Imperihome
                                  mysensors -&gt; mysensors-gw -&gt; Domoticz

                                  1 Reply Last reply
                                  0
                                  • epierreE Offline
                                    epierreE Offline
                                    epierre
                                    Hero Member
                                    wrote on last edited by
                                    #46

                                    @ceech should I put the power on Vin / Gnd as I guess ?

                                    I have started graphing the solar / lipo one here:
                                    https://thingspeak.com/channels/89944

                                    z-wave - Vera -&gt; Domoticz
                                    rfx - Domoticz &lt;- MyDomoAtHome &lt;- Imperihome
                                    mysensors -&gt; mysensors-gw -&gt; Domoticz

                                    C 1 Reply Last reply
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                                    • epierreE epierre

                                      @ceech should I put the power on Vin / Gnd as I guess ?

                                      I have started graphing the solar / lipo one here:
                                      https://thingspeak.com/channels/89944

                                      C Offline
                                      C Offline
                                      ceech
                                      Hardware Contributor
                                      wrote on last edited by
                                      #47

                                      @epierre Yes, Vin is the right choice. Nice graphs :)

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                                      • epierreE Offline
                                        epierreE Offline
                                        epierre
                                        Hero Member
                                        wrote on last edited by epierre
                                        #48

                                        @ceech actually the Particle Photon is doing less well than yours: https://thingspeak.com/channels/88622

                                        z-wave - Vera -&gt; Domoticz
                                        rfx - Domoticz &lt;- MyDomoAtHome &lt;- Imperihome
                                        mysensors -&gt; mysensors-gw -&gt; Domoticz

                                        1 Reply Last reply
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                                        • Mark SwiftM Offline
                                          Mark SwiftM Offline
                                          Mark Swift
                                          wrote on last edited by
                                          #49

                                          Hello guys,

                                          @ceech

                                          I have a load of the 18650 charging boards with the protection circuit (from Aliexpress). I also have a few 18650 batteries and solar panels hanging around.... Can I use the code above to get readings (batt, solar, charge, pct) or do I need something else?

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