Search found 5 matches

by cal237
Sat Jul 31, 2021 1:25 pm
Forum: Hardware
Topic: Can I use the input-only pins to connect to a pushbutton without a resistor?
Replies: 2
Views: 4521

Re: Can I use the input-only pins to connect to a pushbutton without a resistor?

Ok, so I need to implement my own pull-up/pull-down as shown in the 2nd link if I want to use those pins. Thanks for your help!
by cal237
Sat Jul 31, 2021 1:21 pm
Forum: IDEs for ESP-IDF
Topic: IDF environment variables are blank in VS code extension
Replies: 2
Views: 6410

Re: IDF environment variables are blank in VS code extension

I actually had done the configuration, but it turned out there was a bug in the extension. The extension recently updated to 1.1.1 with the bug fix "Fixed setup on windows" and now it works perfectly.
by cal237
Sat Jul 31, 2021 1:18 pm
Forum: General Discussion
Topic: The esp32 timer drifted over half an hour in the course of 10 hours (in deep sleep). Is this normal?
Replies: 3
Views: 6472

The esp32 timer drifted over half an hour in the course of 10 hours (in deep sleep). Is this normal?

My esp32 is supposed to wake up at a certain time. It calculates the number of microseconds for esp_sleep_enable_timer_wakeup() by getting the current time from NTP and calculating the difference between now and the desired wakeup time. I turned in on around 10:30pm and set it to wake up at 8:30am. ...
by cal237
Mon Jul 12, 2021 6:56 pm
Forum: Hardware
Topic: Can I use the input-only pins to connect to a pushbutton without a resistor?
Replies: 2
Views: 4521

Can I use the input-only pins to connect to a pushbutton without a resistor?

On ESP32 the last GPIO pins are input-only and it says they have no software pullup or pulldown resistors. Can I still use them to connect to pushbuttons in the way that is described at https://www.instructables.com/Arduino-Button-with-no-resistor/ (That is, without any external resistor, connecting...
by cal237
Mon Jul 12, 2021 3:34 pm
Forum: IDEs for ESP-IDF
Topic: IDF environment variables are blank in VS code extension
Replies: 2
Views: 6410

IDF environment variables are blank in VS code extension

I just downloaded the ESP extension but none of the commands have been working (aside from the "configure extension" command). They all have an error saying the idf.py file is not found. I checked the value of ${env:IDF_PATH}, ${env:ADF_PATH}, and ${env:MDF_PATH} by creating an echo task for each of...