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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
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Boots33 Hero Member last edited by @Faris Sabri II

@Faris-Sabri-II It reads the battery voltage.
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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
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@OldSurferDude I use this. https://www.homedepot.com/p/Orbit-Solenoid-for-Battery-Operated-Timer-57861/203151515 Instead of having to hold the valve open, i can just pulse it. I use a simple motor controller to pulse it and when i need to close it, pulse it in "reverse". That way I could use a battery and if it only opens once or twice a day it's only a half a second or so of draw off the battery.
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I think the comments you make are good. I do have a question about the removing the regulator. I assume you mean the 5V to 3.3V regulator. I connect to the 5V and I see lot of variation in moisture readings due to the variation in the output of the power supply (solar panel/stepdown). I have a calibration routine for that. The voltage can go as high as 4.2V, which I believe may be bad if I connect the power supply to 3.3V. Of course, this is not a concern if using two 1.5V batteries. With batteries, the moisture reading would be more consistent over a day. Lot of advantages there. I just don't like changing batteries and I really hate it when they leak. I have every reason to believe that my power supply will last 10 years and I am fortunate to live in a place with consistent sunshine . Someone replicating my project will have to take this into consideration. My design easily accommodates a different power supply. And my power supply could be used in other projects. Resistive vs Capacitive sensor. I'm glad you report good results. This gives people options. Water moisture: I've had good experience with "spraying" the Arduino with clear electronic coating and sealing the enclosure with liquid tape. -OSD
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@OldSurferDude So if I get my circuit to work, that would by 22 times less (on average). Well I'm doing too many things at the same time.
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You don't check for which sensor the message is send - message.getSensor() - and in both cases you set the relays both on Like Skywatch said. So you could do something like: if ( message.type == V_STATUS ) { // check if GW send a status change if ( message.getSensor() == sensor 1 ) { // handles sensor 1 } else if ( message.getSensor() == sensor 2 ) { // handles sensor 1 } ... etc }
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@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
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@mfalkvidd Than I'll order a first prototype if this version. I might even swap the buck converter for an AMS11173V. I always thought it would draw much more current when sending.

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

Suggested Topics

Soil Moisture Sensor Powered by solar charged battery My Project • battery home assistant low power eeprom solar calibration • • OldSurferDude

Soil moisture sensor for house plants My Project • soil moisture soil soil sensor plant • • Łukasz T.

Sump Pit Monitor My Project • • KevinT

BT832X PA / LNA My Project • • nagelc

Need help with Code. Simple Nod with 4 button's and 2 Led output. Cant get he Led to work as I whant. They respond but both lights My Project • mysensors • • Knightan

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

My final Gateway version My Project • • TheoL

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Soil Moisture Sensor Powered by solar charged battery
My Project • battery home assistant low power eeprom solar calibration • • OldSurferDude

Soil moisture sensor for house plants
My Project • soil moisture soil soil sensor plant • • Łukasz T.

Sump Pit Monitor
My Project • • KevinT

BT832X PA / LNA
My Project • • nagelc

Need help with Code. Simple Nod with 4 button's and 2 Led output. Cant get he Led to work as I whant. They respond but both lights
My Project • mysensors • • Knightan

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

My final Gateway version
My Project • • TheoL

33
Online

11.7k
Users

11.2k
Topics

113.0k
Posts