the code that I use with this does not work with the "non identified" sensor

yes, the covers are same, I have an another AM2301, which works, but it looks inside like this

Hi,

I have bought a AM2301 from ebay, it was ok, so I have ordered another 2pcs.
But the new ones are not same, could you help me to identify what it is ?

thanks
Barna

Hi Sundberg,

I have read there could be some problem about radio connection if the temperature is ~0C or minus, I have met this issue so I will replace the existing 4.7µ capacitor with a bigger, e.g. ~20µ.
The battery measurement contains a 0.1 uF capacitor, What do you think I do have to replace it with an another bigger one ?
thanks

Barna

I have replaced the delay() by sleep() and every problem was resolved :)

#define MY_DEBUG

// Enable and select radio type attached
#define MY_RADIO_NRF24
//#define MY_RADIO_RFM69

#include <MySensors.h>
#include <SPI.h>
#include <dht.h>

#define CHILD_ID_HUM 14
#define CHILD_ID_TEMP 15
#define HUMIDITY_SENSOR_DIGITAL_PIN 5
unsigned long SLEEP_TIME = 900000; // Sleep time between reads (in milliseconds)
int BATTERY_SENSE_PIN = A0; // select the input pin for the battery sense point
int oldBatteryPcnt = 0;

dht DHT;
float lastTemp;
float lastHum;
boolean metric = true;
MyMessage msgHum(CHILD_ID_HUM, V_HUM);
MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP);

void presentation()
{
// Send the sketch version information to the gateway
sendSketchInfo("TemperatureAndHumidity DHT21", "1.1");

// Register all sensors to gw (they will be created as child devices)
present(CHILD_ID_HUM, S_HUM);
present(CHILD_ID_TEMP, S_TEMP);

metric = getControllerConfig().isMetric;
}

void setup()
{
Serial.println("DHT TEST PROGRAM ");
Serial.print("LIBRARY VERSION: ");
Serial.println(DHT_LIB_VERSION);

// use the 1.1 V internal reference

#if defined(AVR_ATmega2560)
analogReference(INTERNAL1V1);
#else
analogReference(INTERNAL);
#endif

}

void loop()
{
//-------------------- battery

// get the battery Voltage
int sensorValue = analogRead(BATTERY_SENSE_PIN);

#ifdef MY_DEBUG
Serial.println(sensorValue);
#endif

int batteryPcnt = sensorValue / 10;

#ifdef MY_DEBUG
float batteryV = sensorValue * 0.003363075;
Serial.print("Battery Voltage: ");
Serial.print(batteryV);
Serial.println(" V");

Serial.print("Battery percent: ");
Serial.print(batteryPcnt);
Serial.println(" %");

#endif

if (oldBatteryPcnt != batteryPcnt) {
    // Power up radio after sleep
    sendBatteryLevel(batteryPcnt);
    oldBatteryPcnt = batteryPcnt;
}

//-------------------- DHT

// READ DATA
Serial.print("DHT21, \t");
int chk = DHT.read21(HUMIDITY_SENSOR_DIGITAL_PIN);
switch (chk)
{
case DHTLIB_OK:
    Serial.print("OK,\t");
    break;
case DHTLIB_ERROR_CHECKSUM:
    Serial.print("Checksum error,\t");
    break;
case DHTLIB_ERROR_CONNECT:
    Serial.print("Connect error,\t");
    break;
case DHTLIB_ERROR_ACK_L:
    Serial.print("Ack Low error,\t");
    break;
case DHTLIB_ERROR_ACK_H:
    Serial.print("Ack High error,\t");
    break;
default:
    Serial.print("Unknown error,\t");
    break;
}
// DISPLAY DATA
Serial.print(DHT.humidity, 1);
Serial.print(",\t");
Serial.println(DHT.temperature, 1);

send(msgTemp.set(DHT.temperature, 1));
send(msgHum.set(DHT.humidity, 1));

delay(SLEEP_TIME);
}

I have checked the node log, the Domonicz is correct, the node sends message every 30min, but why if 900000 = 15min ?

The 5min summaries was new for me, thanks the info.
But I do not understand if the node wakes up in every 15min, why the Domonicz receives data only by 30min only.

Hi,
Could you help me, what the problem is ?
The log and detailed data time-stamps are not some.
LOG:
2017-12-09 22:27:01.131 (mysensor_gate) Temp + Humidity (Udvar)
2017-12-09 22:27:01.131 (mysensor_gate) Temp + Humidity (Udvar)
2017-12-09 22:57:03.681 (mysensor_gate) Temp + Humidity (Udvar)
2017-12-09 22:57:03.681 (mysensor_gate) Temp + Humidity (Udvar)

DATA:
2017-12-09 22:00:00 63 1
2017-12-09 22:05:00 63 1
2017-12-09 22:10:00 63 1
2017-12-09 22:15:00 63 1
2017-12-09 22:20:00 63 1
2017-12-09 22:25:00 63 1
2017-12-09 22:30:00 59 0.7
2017-12-09 22:35:00 59 0.7
2017-12-09 22:40:00 59 0.7
2017-12-09 22:45:00 59 0.7
2017-12-09 22:50:00 59 0.7
2017-12-09 22:55:00 59 0.7
2017-12-09 23:00:00 56 0.8
2017-12-09 23:05:00 56 0.8
2017-12-09 23:10:00 56 0.8

code:
unsigned long SLEEP_TIME = 900000;
send(msgTemp.set(DHT.temperature, 1));
send(msgHum.set(DHT.humidity, 1));
delay(SLEEP_TIME);

The node must send data by 15min, Domonicz receives it by 30min, detailed data contains 5min data.
Does the Domonicz feel 30min gap every 5min ?

thanks

Barna

Hi Sundberg84,
I have used this step up booster
https://www.ebay.com/itm/181612513907?rmvSB=true

but found this (2nd),
https://www.ebay.com/itm/10Pcs-Mini-2-in-1-1-8V-5V-to-3-3V-DC-Step-Down-Step-Up-Converter-Power-For-Ardu/182793323053?hash=item2a8f54c22d:g:PJMAAOSwYL9ZzAXC
It has lower noise, so I could connect the radio to the Mini. What do you think ?

Hi Sundberg84,
What could you advise for battery powering (remove led and regulator too) if I would like to use Mini 5V and measure the battery level too ?
thx

Barna

@sundberg84 this is not normal buzz, stronger than before.
I have used this source only: https://www.ebay.com/itm/mini-DC-DC-0-8-3-3V-to-DC-3-3V-Step-UP-Boost-Power-Module-For-Breadboard-Arduino-/281556288481?hash=item418e1003e1
which another part could make the buzz ?
yes, I use sleep
sleep(1, CHANGE, SLEEP_TIME); SLEEP_TIME is 900000 , but the node does not wake up and send the battery status, only when door sensor changes.
No, I have not removed the led and regulator, this is the testing period only :)

Hi Sundberg84,

I have some v8 and now enough time for playing.
I setup with v3.3 2xAA, booster, NRF24, simple door sensor or DHT.
1-2 week and the batteries are discharged, I hear little buzz from the mini or other components.
This is the 2nd built where I meet this problem.
Do you have any idea what component is the failed ?
thanks
Barna

maybe this
http://www.ebay.com/itm/2A-DC-DC-Boost-Step-up-Conversion-Module-MicroUSB-2V-24V-to-5V-28V-9V-12V-24V-/321928461470?hash=item4af46e7c9e:g:4mgAAOSwbdpWUq5p

I'm not profi, is my logic correct?
general, not PBC related
I could power the mini 5V with 9V and mini's regulator converts it to 5V.
Mini could give power to radio by 5->3.3 regulator.
I could measure the voltage without booster, but the booster is good to use the battery until it is possible ?

Hi sundberg84,
Is it possible to use 5v mini + 9v battery with measurement ?
I put an voltage regulator to booster place and power the radio from mini with 5-3.3 regulator ?
What do you think ?

I think I could use the 9V as source as raw, but it could be problematic because it is an battery, so I would like to measue it.

thanks
Barna

@sundberg84
why is it problem technically, if I give boosted 3.3 to radio ?

@sundberg84
1.
with battery jumper the radio will get direct 2.6v and work until 1.9v
arduino will get 3.3v via booster
2.
If I bypass the REG all of them will get 2.6v
Is my thinking right ?

@sundberg84 I'm using battery with booster

@sundberg84 yes, I would like to use 2xAA. I have measured it, 2xAA's out is 2.6V, after booster it is 3.3 .
My first tying was battery jumper, but I had was radio problems.
After bypassed the volt reg part to give 3.3v.
When you have mentioned this : "Set the jumper on "reg" and bypass the voltage converter with a wire." do you talk about the jumper which next to battery jumper or the 2nd? I have tried which is next to radio.
I have a filling, it will be soldering or hw issue, because both has worked, and has not sometimes.
thanks