UNO Rev2 to PC WiFi communications

Building a UNO R3 data collector that senses 5 temps, 2 humidity, and 3 damper positions on my geo heat pump home HVAC. I would like to communicate this over a private WiFi network using an existing router not connected to a carrier.

Please help me find the UNO RC hardware spec sheet and a project example or tutorial that would help me. Can't seem to locate these.

@jgmoroz, your topic has been moved to a more suitable location on the forum.

Introductory tutorials is for tutorials that people write to help others, not for questions. Feel free to write a tutorial once you have mastered your problem :wink:

Note that your subject refers to a Uno WiFi R2 but your text refers to a Uno R3; which one is it? Below for the R3, you can find similar information on the product page of the Uno Wifi R2.

The specs of the Uno R3 can be found on the product page: Arduino Uno Rev3 — Arduino Official Store.
The schematic can be found here: https://content.arduino.cc/assets/UNO-TH_Rev3e_sch.pdf

What is a carrier? A shield?

Do you have the specifications of those devices?

I have labored for a month with the Rev2, and wow, what a disappointment it has been. that having been noticed, there are plenty of examples for doing wifi in the ide. look at the one called wifi server and start with that. you will have to learn a little html too but it isn't that bad straightforward really, I mean the tags are all human readable. most browsers have a view html option that will let you see what you sent as you wonder what happened etc.

I have to apologise, not sure where I got the Uno WiFi rev2 from :frowning:

For the rest, the questions in the second post stay :wink:

I followed your links and now understand how the store organized the specs and schematics. Thanks for that.

Correction: I have an ELEGOO UNO R3 Board ATmega328P ATMEGA16U2 with USB Cable Compatible with Arduino IDE Projects.

I feel that my best path is to purchase an ARDUINO SENSOR KIT - BUNDLE WIFI and work through the actuator/transducer interfaces. I cannot find any WifI related lessons listed unless they are embedded in the interface lessons.

Please advise.

If you want WiFi, then a UNO is a poor place to start. A WeMOS D1 Mini would be a better base, using whatever peripheral modules you need for the unspecified sensors.

Thanks

I looked for A WeMOS D1 MINI under boards in store but failed.
Please Advise

Get an esp32 board from amazon for 5 bucks or less.

Please confirm my understanding of the role of the esp32 and the Ardino.

From Google:
The ESP32 works as a slave device to a host MCU (Audrino), reducing communication stack overhead on the main application processor.

The first step is to follow the instructions on github: https://github.com/espressif/arduino-esp32/blob/master/docs/arduino-ide/boards_manager.md

I assume that I write the scripts to interface with the transducers/actuators in the arduino. Not sure how to use the create data files and transfer them via Wifi to a PC for analysis.

Is there a documented project that I can use as an example or another recommendation.

Thanks
Jim

It's not an Arduino product but you can use the Arduino IDE to program it.

To my knowledge (no experience with it), it can act as a standalone microcontroller (basically replacing the Uno).

Be aware that both the Wemos D1 and the ESP32 based boards are 3.3V boards; if you have a sensor that outputs 5V, it can damage your WemosD1 / ESP32.

You still haven't told us which sensors you want to hook up.

Link please

Absolute rubbish!

The ESP32 is a vastly more capable microcontroller than most Arduinox. When you have an ESP32, there are very few reasons for actually adding an Arduino as a slave. :astonished:

Google can - unfortunately - be quite misleading. :roll_eyes:

right. he needs one of these, HiLetgo ESP-WROOM-32 ESP32 ESP-32S Development Board 2.4GHz Dual-Mode WiFi + Bluetooth Dual Cores Microcontroller Processor Integrated with Antenna RF AMP Filter AP STA for Arduino IDE.

buy one try the sample programs and use that as a base for whatever you are doing.

return the rev2 and get your money back if you can. those things are sad.

Thanks for the guidance. Sounds like I was headed in the wrong direction.

Transducers/Actuators that I plan to use:
DHT22/AM2302 Temp Humidity sensors, 3 senses inside zone air, 1 senses outside air. Inputs to the temperature/humidity algorithms
5 damper motor controlled 24Vac digital outputs using 2N222 that are driving relays. 10 digital outputs (one for close and 1 for open on each damper)
Minimum of 10 digital inputs indicating damper open/closed. Inputs would be optically isolated.

It is new for me that IDE can be used as a programming language for the ESP32. WOW

Thanks
Jim

you have to download the board to your Ide with the tools menus and after adding the url to the preferences menu.

This topic was automatically closed 120 days after the last reply. New replies are no longer allowed.