Search found 11 matches

by amarotica
Thu Apr 01, 2021 2:26 am
Forum: ESP-IDF
Topic: Switching between analog and digital GPIO pin
Replies: 1
Views: 3872

Re: Switching between analog and digital GPIO pin

I am also interested in knowing this. Thanks!
by amarotica
Tue Mar 30, 2021 10:44 pm
Forum: Report Bugs
Topic: DHT library
Replies: 1
Views: 5054

Re: DHT library

As far as I know, the DHT sensors communicate via bit-banging, so I don't think it's something that would break with a new release. One thing you could check (to see if the sensor is sending a response) is to send the 18ms start pulse then read-in the raw data and visually see if there is a response...
by amarotica
Tue Mar 30, 2021 6:15 pm
Forum: Report Bugs
Topic: ADC reference docs attenuation possibly wrong
Replies: 1
Views: 5712

ADC reference docs attenuation possibly wrong

Hi there, I wanted to post this potential issue here because it's caused me a bit of confusion over the past few hours. I've been referencing https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/peripherals/adc.html#_CPPv411adc_atten_t for setting up some ADC readings on ADC1, c...
by amarotica
Fri Dec 04, 2020 9:39 pm
Forum: ESP32 Arduino
Topic: ADC1 on sensor_vp (IO36) not working as expected
Replies: 0
Views: 1920

ADC1 on sensor_vp (IO36) not working as expected

Hi all, I am trying to analogRead GPIO 36 on an ESP32-WROOM-32UE module. GPIO is also known as sensor_vp, on ADC1. For some reason, every reading gives me a value of 4095 with my current setup. I initialize the GPIO with pinMode(36, INPUT); then read with int reading = analogRead(36); Reading the vo...
by amarotica
Tue Oct 13, 2020 11:54 pm
Forum: ESP-IDF
Topic: Reading WiFiClientSecure certs from NVS gives error
Replies: 1
Views: 3251

Re: Reading WiFiClientSecure certs from NVS gives error

Figured I should update this. Basically, we never got this working with NVS but we had someone create an "NVS" style library that uses SPIFFS in the background to make it happen.
by amarotica
Mon Sep 14, 2020 9:58 pm
Forum: ESP-IDF
Topic: Reading WiFiClientSecure certs from NVS gives error
Replies: 1
Views: 3251

Reading WiFiClientSecure certs from NVS gives error

I moved this topic from the ESP32 Arduino to ESP32 IDF because I believe the certificate handler is IDF not Arduino specific: Hello, I am in the process of creating a configuration utility to create and save AWS IoT (MQTT) certificates to the ESP32's NVS storage partition on initial flashing, and th...
by amarotica
Sat Sep 12, 2020 8:11 pm
Forum: ESP32 Arduino
Topic: ESP32 DEVKIT arduino IDE no upload
Replies: 2
Views: 4602

Re: ESP32 DEVKIT arduino IDE no upload

I would first double check that you actually have a programmer selected. It has always worked for me on "AVR ISP" although I'm unsure if it actually uses that over something else built in to the ESP32 board manager. Also make sure you put the ESP32 in programming mode when the Arduino IDE attempts t...
by amarotica
Sat Sep 12, 2020 8:01 pm
Forum: ESP32 Arduino
Topic: Trying to figure out if esp vroom 32 fits my needs.
Replies: 7
Views: 6683

Re: Trying to figure out if esp vroom 32 fits my needs.

Yeah, but should I take power from the 3V pin? To add to what Ibernstone said about controlling the motor with a mosfet or transistor, you will want to feed the ESP32-WROOM-32 with a stable 3.3v power supply, generally a "LDO" voltage regulator coming from the battery. That being said, you can just...
by amarotica
Sat Sep 12, 2020 7:51 pm
Forum: ESP32 Arduino
Topic: Reading WiFiClientSecure certs from NVS gives error.
Replies: 2
Views: 3818

Reading WiFiClientSecure certs from NVS gives error.

Hello, I am in the process of creating a configuration utility to create and save AWS IoT (MQTT) certificates to the ESP32's NVS storage partition on initial flashing, and then the ESP32 OTA updates itself to my latest production firmware afterwards. I've succeeded at saving the Public(testPubKey) a...
by amarotica
Thu Jul 23, 2020 12:04 am
Forum: ESP32 Arduino
Topic: Many ESP32 modules on single wifi access point?
Replies: 3
Views: 6739

Re: Many ESP32 modules on single wifi access point?

Thank you bobtidey and Iberstone. Glad to hear that at least someone is doing it successfully. The MQTT messages will be published roughly every 20 minutes on each device, so that evens out to about 1 or 2 messages per minute over the wifi connection. I was primarily concerned with all the nodes usi...