Search found 99 matches
- Fri Apr 23, 2021 6:56 am
- Forum: ESP32 Arduino
- Topic: GPIO 38-38 = ADC1-ADC2?
- Replies: 1
- Views: 2736
Re: GPIO 38-38 = ADC1-ADC2?
What is the "internal switch amplifier"?
- Sat Apr 10, 2021 8:51 pm
- Forum: ESP32 Arduino
- Topic: Warning: new version 1.0.6 of ESP 32 compiler takes TLS by default!
- Replies: 0
- Views: 2122
Warning: new version 1.0.6 of ESP 32 compiler takes TLS by default!
The new version 1.0.16 of ESP 32 compiler takes TLS by default! This may break e.g. communication with MQTT brokers that do not handle TLS. If you enable full debugging messages you get [V][ssl_client.cpp:265] stop_ssl_socket(): Cleaning SSL connection. [V][ssl_client.cpp:59] start_ssl_client(): Fre...
- Fri Apr 09, 2021 1:30 pm
- Forum: ESP32 Arduino
- Topic: GPIO 38-38 = ADC1-ADC2?
- Replies: 1
- Views: 2736
GPIO 38-38 = ADC1-ADC2?
Espressif specifies: The ADC driver API supports ADC1 (8 channels, attached to GPIOs 32 - 39), That should include GPIO 37,38, logically with ADC1 and 2 respectively. The Vroom module does not expose these pins, so one have only 6 ADC inputs freely usable. (all ADC2 pins are is mainly not usable wit...
- Sun Mar 07, 2021 10:08 am
- Forum: ESP32 Arduino
- Topic: Fix non-linear ADC
- Replies: 3
- Views: 5008
Fix non-linear ADC
The ADC of the ESP32 has a – fully justified – bad reputation. - The advertised 12 bits are practically 9 bit +3 bit noise. - The V/ADC relation is not linear - The first 0.21V of the input (by 11dB attenuation) are ignored I am proposing here a solution to get an acceptable result despite of all th...
- Fri May 22, 2020 9:36 am
- Forum: ESP32 Arduino
- Topic: Porting basic code to ESP32
- Replies: 4
- Views: 5267
Re: Porting basic code to ESP32
My glass ball needs a repair.
Please define "can't get it to work".
What did you do?
What did you expect?
What did you get instead?
Please define "can't get it to work".
What did you do?
What did you expect?
What did you get instead?
- Fri May 22, 2020 8:18 am
- Forum: ESP32 Arduino
- Topic: Best NTP-Time library for ESP32?
- Replies: 15
- Views: 42958
Re: Best NTP-Time library for ESP32?
... The best library, I find, is timelib.h, the latest version is (seems to be!) by Paul Stoffregen ... I strongly disagree. Been there, done that... The Arduino timelib.h has been written for a blank Arduino and bases on millis() only. A kind of bare metal time library that is not even fully POSIX...
- Sat May 16, 2020 8:09 am
- Forum: ESP32 Arduino
- Topic: Wanted: BLE low power example
- Replies: 1
- Views: 3275
Re: Wanted: BLE low power example
If you use the Arduino IDE, you have got the examples in File/Examples/ Examples for ESP32/ESP32 BLE Arduino...
(at their logical place, by the way)
(at their logical place, by the way)
- Fri May 01, 2020 3:27 am
- Forum: ESP32 Arduino
- Topic: That is a somewhat curious forum here...
- Replies: 8
- Views: 8799
Re: That is a somewhat curious forum here...
Thank you, but what can I do with this information? esp_err_t esp_wifi_set_ps(WIFI_PS_MAX_MODEM); returns an error from the library: 'WIFI_PS_MAX_MODEM' was not declared in this scope. Does that mean that the library under ...\Arduino\Hardware\espressif\esp32\libraries\WiFi just makes no use of the ...
- Thu Apr 30, 2020 10:05 pm
- Forum: ESP32 Arduino
- Topic: SimpleTime ...and then?
- Replies: 3
- Views: 4380
Re: SimpleTime ...and then?
Thank you for replying I have currently 2 routines: I have slightly modified the routines; void reConnect() { WiFi.mode(WIFI_STA); WiFi.begin(); while (WiFi.status() != WL_CONNECTED) { delay(10); } } void disConnect() { // WiFi.disconnect(); //temporarily disconnect WiFi as it's no longer needed Wi...
- Thu Apr 30, 2020 8:45 pm
- Forum: ESP32 Arduino
- Topic: That is a somewhat curious forum here...
- Replies: 8
- Views: 8799
Re: That is a somewhat curious forum here...
Most questions in here can be answered by using a simple Google search... Most questions, maybe... But I could not find anything useful about the concrete syntax to enter into modem sleep, NOT light sleep, NOT deep sleep that are documented here https://docs.espressif.com/projects/esp-idf/en/latest...