Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.

Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).

im quite confuse, the voltage sensor read the voltage at solar or at the battery..??

Faris Sabri II last edited by

Re: 12v Solar battery monitor
Reply Quote 0
1 Reply Last reply
Boots33 Hero Member last edited by @Faris Sabri II

@Faris-Sabri-II It reads the battery voltage.
Reply Quote 0
1 Reply Last reply
gohan Mod last edited by

by looking at the picture the voltage is measured near the battery, so I'd say it is the battery voltage
Reply Quote 0
1 Reply Last reply

3
Posts

745
Views

Suggested Topics

Welcome
Announcements • • hek

8

0
Votes

8
Posts

3221
Views

@NotYetRated Hope you'll find good uses and a fun time while building your sensors.
Door chime
My Project • • Paul Scarbro

2

0
Votes

2
Posts

25
Views

@Paul-Scarbro There are multitude of solution, but since we are in MySensors Land, let's do a MySensors solution. You'll quickly see that doing that adds a lot of overhead. We'll use an Arduino Nano or RF Nano if you're going to go whole hog. It can be run from 3.3V or 5V DC, not AC. The reed switch would be connected to an input of the Nano and one of the outputs would drive a relay. The relay would drive the chime. Your C++ program would be something like: #define inputButton 2; // connect reed switch here #define outputRelay 4; // connect relay to this pin see MySensors Relay example #define RELAY_ON 1 // GPIO value to write to turn on attached relay #define RELAY_OFF 0 // GPIO value to write to turn off attached relay void setup() { pinmode(inputButton,INPUT); pinmode(outputRelay,OUTPUT); // put your setup code here, to run once: } void loop() { // put your main code here, to run repeatedly: if (digitalRead(inputButton) == 0) { digitalWrite(outputRelay,RELAY_ON); wait(2000); // wait 2 seconds digitalWrite(outputRelay,RELAY_OFF); // now wait for door to close while(digitalRead(inputButton) == 0) ; //does nothing until reed switch opens } } There are some subtleties that I may have glossed over, but this is the gist. By looking at the MySensors Relay example, you'll see how to integrate this into a MySensors environment. That's where you'd want to get the RF Nano. I've made the assumption you're familiar with the Arduino IDE and you've looked into the MySensors environment.
New Setup for Home Environment Monitoring – Using NRF24L01+, Arduino Pro Mini, and BME280
My Project • mysensors nrf24l01+ home environment monitoring • • lostintheethes

3

0
Votes

3
Posts

30
Views

@nagelc said in New Setup for Home Environment Monitoring – Using NRF24L01+, Arduino Pro Mini, and BME280: bme280 I read somewhere that the temperature sensor on the BME280 is sort of an afterthought. I did a few experiments comparing them to the DHT11/12/22 and found them only a little better. (Take this with a grain of salt, maybe you'll want to do you're own experiments.) I did do a lot of experiments with the DHT's and they really suck. +/-2°C Which turns out to mean +/-2°C offset (component variation) and +/-2°C measurement: +/-4°C from what the temperature actually is. My experience, yours may be better. Please post your experience with OTA. I haven't tried it on Arduino's but it's awesome on ESP8266. I hesitate with Arduino's because I had some erratic behaviour running Arduino's when pushing the memory limit. I, too, use the MQTT data transport to Home Assistant (HA) and I find that excellent. Getting data from HA is a bit tricky, but do-able. I have a flow meter and use HA to store the last read; meaning, if there is a power failure, HA sends the last read on Arduino boot. I don't use the EEPROM because that has a spec of 100,000 writes which the meter would do in about a year, thus, necessitating a new Arduino. I truly appreciate you sharing. Thanks! -OSD
Status of my rv(camper) home automation system 2020-2025
My Project • • fsgraz

11

2
Votes

11
Posts

25
Views

@fsgraz Did some testing Today and my RFM range is over 80 meters node to node, with no long range antenna. That will be my next test, just waiting for a shipment from China to arrive. I did how ever notice an extreme improvement when I connected the gateway through a USB hub and then started to dig through the forum. @AWI once wrote about using an external PSU to power the long range NRF PA/LAN. I'll try that this weekend as connecting it to they USB port of my PI extended the range to 20 meters Node to Node.
Radar motion sensor
My Project • • suresh sharma

1

1
Votes

1
Posts

15
Views

No one has replied
Getting Better Range with NRF24L01 Modules
My Project • • MasonBlake

6

0
Votes

6
Posts

45
Views

Thank you so much for your support

im quite confuse, the voltage sensor read the voltage at solar or at the battery..??

Suggested Topics

Welcome
Announcements • • hek

Door chime
My Project • • Paul Scarbro

New Setup for Home Environment Monitoring – Using NRF24L01+, Arduino Pro Mini, and BME280
My Project • mysensors nrf24l01+ home environment monitoring • • lostintheethes

Status of my rv(camper) home automation system 2020-2025
My Project • • fsgraz

Radar motion sensor
My Project • • suresh sharma

Getting Better Range with NRF24L01 Modules
My Project • • MasonBlake

22
Online

11.7k
Users

11.2k
Topics

113.0k
Posts

im quite confuse, the voltage sensor read the voltage at solar or at the battery..??

Suggested Topics

Welcome Announcements • • hek

Door chime My Project • • Paul Scarbro

New Setup for Home Environment Monitoring – Using NRF24L01+, Arduino Pro Mini, and BME280 My Project • mysensors nrf24l01+ home environment monitoring • • lostintheethes

Status of my rv(camper) home automation system 2020-2025 My Project • • fsgraz

Radar motion sensor My Project • • suresh sharma

Getting Better Range with NRF24L01 Modules My Project • • MasonBlake

22Online

11.7kUsers

11.2kTopics

113.0kPosts

Welcome
Announcements • • hek

Door chime
My Project • • Paul Scarbro

New Setup for Home Environment Monitoring – Using NRF24L01+, Arduino Pro Mini, and BME280
My Project • mysensors nrf24l01+ home environment monitoring • • lostintheethes

Status of my rv(camper) home automation system 2020-2025
My Project • • fsgraz

Radar motion sensor
My Project • • suresh sharma

Getting Better Range with NRF24L01 Modules
My Project • • MasonBlake

22
Online

11.7k
Users

11.2k
Topics

113.0k
Posts