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).

I stand and doubts

carama last edited by

Hello to all forum carama am from Spain, I take several weeks trying to create my first project, say in programming idea 0 in electronics if my project is as follows:

I have 2 Arduino with two nRF24L01 + modules, one with ethernet shield in TX have a DHT21 sensor, what I do is, send data DHT21 from the TX and receive in the RX, below up to my website data received through the ethernet shield.

It is possible to do what I want ??

They are so kind to tell me how I can make what I want.

Thank you very much and great forum.
Reply Quote 0
1 Reply Last reply

1
Posts

870
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.
Controlling Blinds.com RF Dooya Motors with Arduino and Vera
My Project • • petewill

90

7
Votes

90
Posts

73900
Views

Hello everyone, Firstly, I apologize for reviving such an old thread, but I find myself in a unique situation and was hoping some of you might be able to help. I hope everyone's doing well. I have a specific inquiry that I couldn't find a recent solution for. Does anyone here know of a tool to generate "fake" Dooya remote (DC90) RF codes for curtains? I've acquired a few motors without controllers and am trying to integrate them with Home Assistant and Bradlink RF remote. Specifically, I'm searching for a way to generate codes for the Up, Down, Stop, and the "Set" button functions to configure curtain limits. Any insights or guidance would be immensely appreciated. Thank you so much in advance!
A low cost energy meter
My Project • • OldSurferDude

7

1
Votes

7
Posts

45
Views

@OldSurferDude yes, you are correct. this sensor is capable of 50A continuous, which safely I would make it working at 40A max., but for such an important load as in your case I would go for a beefier one, like the ACS75x, 77x, but at this point I would also change the node's form factor for space and insulation reasons. On my application on the RV I have a max. curr. of 13A running on a AWG14-16 cable (European rules for RVs), so I did not ask myself too many questions beside, of course, safety. About the signal, it will be a sinusoidal signal swinging around Vcc/2. Vcc can be easily measured internally on the ATmega328. On all my DC sensors I measure Vcc at every loop, just before measuring the ADCs. Honestly, when the space is not an issue like in my RV, I would rather use a ring core current transformer, and I would get rid of noise, response time, power dissipation, but over all no need to cut any cable. Long story short, it has been a nice experiment and I used it for 6 months, and then I switched back to my RF-NANO based RS485-Modbus - Mysensors bridge connected to an off-the shelf power analyzer. Just for fun I attach a pic of my 12Vdc sensors installed on my RV. Forgive me for the spaghetti wiring on the right side, but this is an area that needs improvement.
Auxiliary Loads and Mains Charger Controller for my Smart Mobile Home
My Project • • fsgraz

1

2
Votes

1
Posts

23
Views

No one has replied
HVAC Controller
My Project • • Michael Link

3

1
Votes

3
Posts

29
Views

We are of like minds, Don't like the cloud based controls (that's another discussion). In my case I have a Bryant/Connex system, heat pump, variable speed fan and 4 zones. There's a lot going on: the 4 zones creates 16 profiles. The fan speed for a profile will depend on the indoor and outdoor temperature. The thermal fluid pump also has to be controlled. A profile will have an optimal air pressure, so there's a sensor there. The controller works just fine not being connected to the cloud. But I want to set the parameters remotely, Bryant/Connex can do this. I also wnat the status of the various actuators and sensors to show up in Home Assistant. The signals sent over the RS422 are proprietary. My plan was to reverse-engineer the signals. After doing this I'll have to experiment to get the right mix of air pressue, fan speed and thermal fluid flow for each profile. I'd like to do the same for my AO Smith heat pump water heater. I'd like to follow your progress. OSD
Alexa Fauxmo - Mysensor Bridge Gateway / BLE - Mysensors Bridge Gateway
My Project • • fsgraz

1

2
Votes

1
Posts

12
Views

No one has replied

I stand and doubts

Suggested Topics

Welcome
Announcements • • hek

Controlling Blinds.com RF Dooya Motors with Arduino and Vera
My Project • • petewill

A low cost energy meter
My Project • • OldSurferDude

Auxiliary Loads and Mains Charger Controller for my Smart Mobile Home
My Project • • fsgraz

HVAC Controller
My Project • • Michael Link

Alexa Fauxmo - Mysensor Bridge Gateway / BLE - Mysensors Bridge Gateway
My Project • • fsgraz

14
Online

11.4k
Users

11.1k
Topics

112.7k
Posts

I stand and doubts

Suggested Topics

Welcome Announcements • • hek

Controlling Blinds.com RF Dooya Motors with Arduino and Vera My Project • • petewill

A low cost energy meter My Project • • OldSurferDude

Auxiliary Loads and Mains Charger Controller for my Smart Mobile Home My Project • • fsgraz

HVAC Controller My Project • • Michael Link

Alexa Fauxmo - Mysensor Bridge Gateway / BLE - Mysensors Bridge Gateway My Project • • fsgraz

14Online

11.4kUsers

11.1kTopics

112.7kPosts

Welcome
Announcements • • hek

Controlling Blinds.com RF Dooya Motors with Arduino and Vera
My Project • • petewill

A low cost energy meter
My Project • • OldSurferDude

Auxiliary Loads and Mains Charger Controller for my Smart Mobile Home
My Project • • fsgraz

HVAC Controller
My Project • • Michael Link

Alexa Fauxmo - Mysensor Bridge Gateway / BLE - Mysensors Bridge Gateway
My Project • • fsgraz

14
Online

11.4k
Users

11.1k
Topics

112.7k
Posts