I never got it working, and still no help from Espressif.

Hi Espressif friends -

I recently got introduced to an ESP32 board and got started working on it. I had a couple of issues that slowed down my ramp up, so I thought I'd share it so you might be able to improve the experience for future newbies. :)

Getting Started guide
Your getting started guide ...

If you are storing the data for processing, it will be more efficient all the way down the line to work with integers rather than decimals. Efficiency = lower cost. APIs are really for computers to interact (efficiently when possible). The presentation to your eyeballs is the only place where it ...

The temperature/humidity sensors have very limited memory, so they save space wherever possible. On a device that measures temperature from 0-100, you can get away with a 10-bit integer register (2^10=1024) to store it, with one decimal place of precision. A float value is 32 bits, and more ...

Post what you need.

Post what you have tried.

we'll help where we can.

Tom


Much appreciated, Tom. I think I'm good now.

The issue was that I followed the instructions at https://github.com/espressif/esp-iot-solution#preparationmake for my Windows v3.3 tool chain. I kept getting build errors ...

Are you using the HTS221 temp/humid sensor ?

if so: https://github.com/espressif/esp-iot-solution/blob/master/README.md


I didn't realize I am, but I am. I took a second look at the spec sheet to confirm. I'm new to MCUs and honestly don't know many things, but I'm learning.

I got a solution ...

To convert to decimal

I guess a better way to ask my question is, if my temperature reading is 30.4 C, why is it stored as 304?

I assumed the values are stored with accuracy of 0.1, but as an integer because maybe they store better than floats.

temprature_sens_read is not what you want. It is for reading esp32 internal temperature.

Gotcha.

In the samples, why are temp and humidity divided by 10?

I found this sample, which uses a very different approach than the function I found for temperature earlier.

Is this what is recommended?

https://github.com/espressif/esp-iot-so ... ain/main.c

Thanks,
David

I'm using an ESP32 Azure IoT Kit. I want to send temperature and humidity along as telemetry to my IoT hub.

I cannot find almost any information on how to do this. I came across one post here where someone refers to using uint8_t temprature_sens_read() (note that the word temperature is misspelled ...