Best posts made by A3V

A3V

I found this solar light at Action:

Solarlight Action NL
Seems very hackable:

includes:

40 LED panel; 40 white led in parallel
5.5 V 200 mA solar panel
1 x Li-ion 3.7 2000mAh cell (in battery holder: can be removed )
PIR Motion sensor 3.3V
Signals:
-Q1 / R2 = probably battery polarity and discharge protection
Solar charging IC (could be C3130) pins seems to match functionality:
R8 (3K3) is probably RiSet

There is one 8 pin logic chip.

Signal at Pin 2 is connected to the PIR
Signal at Pin 3 is connected to voltage divider R4/R5 to detect sun light, (LEDS will switch off when there is sun light)
Signal at Pin 4 is connected to the button (ON/OFF/Mode)
Signal at Pin 5 to R1 is driving the leds via Q1/Q3 (N-channel Mosfet A2SHB) R7/R6 (2x 0.1) Ohm
Q2 = voltage regulator 3.3 V To pin 1 of logic chip and PIR element

Hope to make some mysensor thing out of this soon.

Greetings A3

A3V

I had something similar with one of my homebrew barebone sensors: It ran for two years on one pair of AA batteries then I replaced the batteries and it lasted only 2 months. So changed again the batteries and it ran only 2 weeks.
I measured the current and it turned out it was drawing a few mA instead of uA while it was sleeping.
Turned out that one capacitor was leaking. Replaced it and now it has normal sleep current.

A3V

Reply to myself:
Looking thought the sources and the forum found out that you can do this using hooks.
so enabled hooking

#define NODEMANAGER_HOOKING ON

and added the reference to the hook to before.

void before() {
 Tsensor.setMeasureTimerMode(TIME_INTERVAL);   // set timer 
 Tsensor.setMeasureTimerValue(1); // interval to 1 sec measurement

 Tsensor.setPostLoopHook(&myfirstHook);
 ..etc.etc...
 nodemanager.before();
}

And finally the hook

void myfirstHook(Sensor* sensor){
  float temperature =  Tsensor.children.get(1)->getValueFloat()
  Serial.println(temperature);
  if (temperature>setpoint) { 
        if (Relay.getStatus()==OFF){
        Relay.setStatus(ON);      // switch off
        } 
  

}

The error that I got initially was caused by using the wrong child: 0 (it starts from 1).

I wonder if it is possible to do interval < 1 second?