Search found 27 matches

by Nespressif
Wed Feb 14, 2018 9:15 am
Forum: General Discussion
Topic: Mosfet choice
Replies: 11
Views: 440

Re: Mosfet choice

Hi guys, what you build would be the same as this https://es.aliexpress.com/item/10pcs-lot-Voltage-Sensor-10pcs-for-Arduino-DC-Raspberry-Pi-Amplifier-Digital-Current-DC0-25V-with/32801635174.html?spm=a2g0s.9042311.0.0.aRy6W6 ? Though I'm doing it for you, of course. I'd like to know if it's the same...
by Nespressif
Tue Feb 13, 2018 8:04 am
Forum: ESP32 SDK
Topic: Simple MQTT with C++ and IDF
Replies: 9
Views: 422

Re: Simple MQTT with C++ and IDF

Koulwa wrote: I didn't think MQTT would be so hard with the IDF. :(


Neither do I, with how easy it is with arduino IDE, for example. Last week I downloaded the 256dpi/esp-mqtt complement and it appears in the menuconfig, but I haven't tried it yet to send it to thingspeak.

Greetings,
by Nespressif
Mon Feb 12, 2018 9:33 am
Forum: ESP32 SDK
Topic: Simple MQTT with C++ and IDF
Replies: 9
Views: 422

Re: Simple MQTT with C++ and IDF

With the aws iot, do you have to use it on their platform or can you use the mqtt portion for another service IE: mosquitoe? Also, did you implement it in c, or C++ with the snippets aws iot code? I've done some tests with the example of espressif https://github.com/espressif/esp-idf/tree/master/ex...
by Nespressif
Sat Feb 10, 2018 12:12 pm
Forum: ESP32 SDK
Topic: Simple MQTT with C++ and IDF
Replies: 9
Views: 422

Re: Simple MQTT with C++ and IDF

Very good contribution, this component did not know it (I have tried paho, mosquito... etc) but I'm going to try it, because I don't care that don't have security support. I've been testing mqtt on AWS IoT and it's great, being integrated with IDF.

Greetings,
by Nespressif
Fri Feb 09, 2018 12:12 pm
Forum: ESP32 SDK
Topic: Simple MQTT with C++ and IDF
Replies: 9
Views: 422

Re: Simple MQTT with C++ and IDF

Hi, I have the same problem, I've tried several mqtt libraries and managed to make espmqtt work but only with C code, not C++. But I have a problem, stop sending information to Thingspeak, about 15 minutes. Therefore, I still haven't been able to use the mqtt protocol because of this, I still use RE...
by Nespressif
Fri Feb 09, 2018 7:51 am
Forum: ESP32 HDK
Topic: About temprature_sens_read();
Replies: 2
Views: 170

Re: About temprature_sens_read();

Thanks for the answer, ESP_Sprite. No problem, I only use this value to check the chip stability, I get the temperature and humidity with I2C sensors.

Greetings,
by Nespressif
Thu Feb 08, 2018 4:54 pm
Forum: ESP32 HDK
Topic: About temprature_sens_read();
Replies: 2
Views: 170

About temprature_sens_read();

Hi guys, I'd like to know why this function (temprature_sens_read ();) it gives me back a value of 175 approx. with this https://es.aliexpress.com/item/ESP32-Development-Board-WiFi-Bluetooth-Ultra-Low-Power-Consumption-Dual-Cores-ESP-32-ESP-32S/32799710563.html and a value of approx. 75. with a boar...
by Nespressif
Mon Feb 05, 2018 10:18 am
Forum: General Discussion
Topic: ESP32 OTA via BLE
Replies: 10
Views: 1299

Re: ESP32 OTA via BLE

hello, although I suppose you have already thought about it, an alternative way is that the app installed on the client's smarphone, configure the phone as AP wifi with some keys that ESP knows and pressing, for example, the reset of ESP this connects to the smartphone and updates.

Greetings,
by Nespressif
Wed Jan 31, 2018 12:41 pm
Forum: General Discussion
Topic: Arduino Library or C/C++ Language for development
Replies: 1
Views: 183

Re: Arduino Library or C/C++ Language for development

Using the espressif IDE with C/C++ is much more powerful, Arduino what it offers is a great ease of use for the most common tasks.

Greetings,
by Nespressif
Wed Jan 31, 2018 12:38 pm
Forum: General Discussion
Topic: Need to reduce wifi startup time and power consumption
Replies: 7
Views: 320

Re: Need to reduce wifi startup time and power consumption

Wifi is not a technology designed to run on batteries because of its energy consumption, I guess you know that, although optimizing will have problems.

To operate with batteries without solar charger: BLE, LPWAN... etc.

Greetings,