My Slim 2AA Battery Node

badmannen

Daaaaang ... it is a good time to be alive and come back to this I see =) ... thanks a million to you guys that made that one .. that certainly makes changes a whole lot less painful!

badmannen

@neverdie Alright , that took me a couple of days of fighting with Arduino/Linux/windows/drivers/bootloaders etc etc etc but I got it all running with my updated gateway+repeater-node + mailbox-node. did not try the update function yet but surely it should work. just need one or two more repeater-nodes since I have way to thick cement walls here for this signal.

badmannen

OK I had some fun the last couple of days and actually got something done =D !

Managed to update my gateway and repeater-nodes to latest version and boot-loaded all nodes and future nodes so they are FOTA enabled .

So far I managed to assemble 3 nodes and after a bit of swearing and soldering and de-soldering and re-soldering I got:
1 - DHT11 TEMP / HUM node, on Battery (Slim 2AA) - surprisingly accurate actually

2 - DOOR-SWITCH - on Battery (Slim 2AA) - to be used in my mailbox, got the idea from someone here in the forums, so thank you, I don´t remember who it was since I probably read a million posts by now =D

3 - a 220V Relay switch, with the PA LN radio, and works as repeater ( runs on a NANO )

just wanted to say a huge thanks to the MySensors group and all people here on the forum for helping me get started (Had a little break for a couple of years =)

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NeverDie

Let us know when you get it to FOTA update.

badmannen

@neverdie
Just tried it by mounting an "empty" 328P in the node just with the
fuses set to:
0xE2
0xDA
0xFE

and with the MYSBootloader .

Amazing ! . worked at the first try! (this time around =D )

( tried and failed a couple of times earlier, but I know I burned 0xFD instead of 0xFE so set the BOD to the wrong value, and that does not work )

badmannen

@neverdie Actually... I run into another problem ..

After I make a FOTA and upload a sketch . it runs as it should, no problem.

But if I try to update it again , it never tries to upload the sketch to the node.

The only thing I could find that was clever to do to make it work ok with a battery node was to use smartSleep();
which I do ... is there anything else in the code that needs to be present ?

NeverDie

Hopefully someone who knows can chime in.

badmannen

@neverdie OK, that person who knows something is now ME ! =D ... RTFM ... as always , it worked strangely enough to update ONCE with some slightly wrong Fuses set... reloaded the bootloader with soem correct fuses agian .. ( hopefully alst time .. and VOILA! now it works to update the node multiple times .. yeaa.

NeverDie

What were the winning fuse settings that you finally settled on using? Trust me, a year from now you won't remember, and you'll be glad you posted it.

badmannen

OK MY solution was actually the fuses that I said earlier . but confused myself by changing them back and forth a couple of times and downgraded Arduino to the previous version etc.

So the fuses for my barebone 328P are:

proMYSBL8.bootloader.low_fuses=0xE2
proMYSBL8.bootloader.high_fuses=0xDA
proMYSBL8.bootloader.extended_fuses=0xFE

the biggest issue I had was probably with ARduino IDE .. that one I enver manged to set the fuses ( I read somewhere it should.. but maybe I´m wrong) . Anyway it works when I set the fuses and upload it with AVRDUDESS.

(note: hello me 1 year into the future, just do what I say ! )
=)

badmannen

I just add another note to myself ( And anyone else that lost their hair wondering why the bootloader was lost....)

DO NOT UPLOAD SKETCH ONLY WITH USBASP ... it deletes the bootloader .
yes I know it is mentioned on the foru m.. just found it .. but I mention it again...

badmannen

@badmannen

and here is a good simple explanation of the fuses
http://www.martyncurrey.com/category/atmega/

NeverDie

FYI: If you run the ceramic resonator at 8mhz, with the zero wake up fuse setting, you can wake the atmega328p up in less than 4usec. This is a huge power savings compared to all other options.

badmannen

@neverdie aa thanks for the info. Might be useful for some other nodes I will do.

NeverDie

@badmannen You're welcome. I even measured it on an oscope just to be sure, so I'm certain it is true.

badmannen

This style?
€ 1,09 8%OFF | 20pcs Ceramic Resonators ZTT 4M 6M 8M 10M 12M 16M 4/6/8/10/12/16MHZ DIP-3 Crystal Frequency Element
https://s.click.aliexpress.com/e/mRfXWk8Nd

NeverDie

@badmannen no. It's built in. You already have it.

badmannen

@neverdie aa ok sorry got confused there for a second. I'm running the internal, so I guess I will pop them off again now then and burn that fuse for a quicker startup 👍🏻

NeverDie

@badmannen yes, it must be the internal resonator.

Grzegorz B

Hello, will there be a good soul that will help improve the program? I know what the error is but I have no idea how to correct it.

  interruptReturn = sleep(PRIMARY_BUTTON_PIN-2, CHANGE, SECONDARY_BUTTON_PIN-2, CHANGE, ONE_DAY_SLEEP_TIME);

when i change

PRIMARY_BUTTON_PIN

the interruptReturn = 1, but when i change

SECONDARY_BUTTON_PIN

the interruptReturn = 0.
My question is how can i chane it to send 1 and 1 by both contactrons.

Full code:

//#define MY_DEBUG
#define MY_RADIO_NRF24
#define MY_NODE_ID 100
#define MY_PARENT_NODE_ID 0
#define MY_PARENT_NODE_IS_STATIC

#include <MySensors.h>
#include "Vcc.h"

#define SKETCH_NAME "WindowSlimSensor2pcs_smallR"

#define PRIMARY_CHILD_ID 1
#define PRIMARY_BUTTON_PIN 2
#define SECONDARY_CHILD_ID 2
#define SECONDARY_BUTTON_PIN 3
#define BATTERY_REPORT_DAY 2   // Desired heartbeat interval when inactive. Maximum heartbeat/report interval is equal to this due to the dayCounter.
#define BATTERY_REPORT_BY_IRT_CYCLE 10  // Adjust this according to usage frequency.
#define ONE_DAY_SLEEP_TIME 86400000

//#define BATTERY 3

MyMessage msg(PRIMARY_CHILD_ID, V_TRIPPED);
MyMessage msg2(SECONDARY_CHILD_ID, V_TRIPPED);
//MyMessage msg3(BATTERY, V_CUSTOM);

int dayCounter = 0;
int irtCounter = 0;
bool interruptReturn=false;
const float VccMin   = 1.7;           // Minimum expected Vcc level, in Volts.
const float VccMax   = 3.3;           // Maximum expected Vcc level, in Volts.
const float VccCorrection = 3.43 / 3.455;  // Measured Vcc by multimeter divided by reported Vcc


const int32_t report_interval = 8640000; // 1day -> h * m * s * ms NOTICE: milliseconds, not microseconds!

Vcc vcc(VccCorrection);
//Vcc vcc;
#ifdef MY_DEBUG
void before(){
    Serial.begin(9600);
}
#endif

void setup()
{
    pinMode(PRIMARY_BUTTON_PIN, INPUT);
    pinMode(SECONDARY_BUTTON_PIN, INPUT);
      //EXTERNAL pull-ups
    digitalWrite(PRIMARY_BUTTON_PIN, LOW);
    digitalWrite(SECONDARY_BUTTON_PIN, LOW);  
}

void presentation()
{
    sendSketchInfo(SKETCH_NAME, __DATE__);
    present(PRIMARY_CHILD_ID, S_DOOR, "Lewe Okno");
    present(SECONDARY_CHILD_ID, S_DOOR, "Prawe Okno");
  //  present(BATTERY, S_CUSTOM);
}

void loop()

{
    uint8_t reedState;
    uint8_t reedState2;
    static uint8_t lastReedState = 2;
    static uint8_t lastReedState2 = 2;
    sleep(5); // Short delay to allow buttons to properly settle
    reedState = digitalRead(PRIMARY_BUTTON_PIN);
    sleep(5); // Short delay to allow buttons to properly settle
    reedState2 = digitalRead(SECONDARY_BUTTON_PIN);

  if (!interruptReturn) { // Woke up by timer (or first run)
    dayCounter++; 
    if (dayCounter >= BATTERY_REPORT_DAY) {
          dayCounter = 0;
          sendBatteryReport();
    }
  }
  else {    // Woke up by pin change
            irtCounter++;
        sleep(5); 
  
      // Woke up by pin change
      if (reedState != lastReedState) {
        send(msg.set(reedState==HIGH ? 1 : 0));
        lastReedState = reedState;
    }
      if (reedState2 != lastReedState2) {
        send(msg2.set(reedState2==HIGH ? 1 : 0));
        lastReedState2 = reedState2;
    }
      if (irtCounter>=BATTERY_REPORT_BY_IRT_CYCLE) {
        irtCounter=0;
        sendBatteryReport();
      }
    
  }

  // Sleep until something happens with the sensor,   or one sleep_time has passed since last awake.
  interruptReturn = sleep(PRIMARY_BUTTON_PIN-2, CHANGE, SECONDARY_BUTTON_PIN-2, CHANGE, ONE_DAY_SLEEP_TIME);
  
} 

void sendBatteryReport() {
          uint8_t batteryPercent = (uint8_t)vcc.Read_Perc(VccMin, VccMax);
          sendBatteryLevel(batteryPercent);
}

My Slim 2AA Battery Node

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