Search found 11 matches
- 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!
- 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...
- 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...
- 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...
- 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.
- 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...
- 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...
- 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...
- 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...
- 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...