Search found 20 matches

by perigalacticon
Tue Jan 13, 2026 4:29 pm
Forum: Hardware
Topic: Lolin D32 PRO Reverse Voltage on I2C port!!!
Replies: 8
Views: 422

Re: Lolin D32 PRO Reverse Voltage on I2C port!!!

Yeah it was missing a minus sign. something I could have changed if you could edit your own posts. What I learned is that Lolin and Arduino sucks.
by perigalacticon
Tue Jan 13, 2026 11:32 am
Forum: Hardware
Topic: Lolin D32 PRO Reverse Voltage on I2C port!!!
Replies: 8
Views: 422

Re: Lolin D32 PRO Reverse Voltage on I2C port!!!

You dont know what your talking about. I am talking about the I2C port on the board, its a 4-pin JST SH 1.0 connector. Typically known as Stemma QT or Qwiic by adafruit and sparkfun respectively.
by perigalacticon
Tue Jan 13, 2026 4:13 am
Forum: Hardware
Topic: Lolin D32 PRO Reverse Voltage on I2C port!!!
Replies: 8
Views: 422

Re: Lolin D32 PRO Reverse Voltage on I2C port!!!

Pinout. Why cant you edit your own posts on this forum?
by perigalacticon
Tue Jan 13, 2026 4:11 am
Forum: Hardware
Topic: Lolin D32 PRO Reverse Voltage on I2C port!!!
Replies: 8
Views: 422

Re: Lolin D32 PRO Reverse Voltage on I2C port!!!

The schematic for the board shows the port pinoit is different from the standard stemma I2C port. I am so effing annoyed at the lack of standardization among hardware and code for arduino.
by perigalacticon
Mon Jan 12, 2026 8:49 pm
Forum: Hardware
Topic: Lolin D32 PRO Reverse Voltage on I2C port!!!
Replies: 8
Views: 422

Lolin D32 PRO Reverse Voltage on I2C port!!!

I just tested the I2C port for the first time on my Lolin D32 PRO board and found that it supplies NEGATIVE VOLTAGE to the I2C port!!! I used a standard I2C cable from Adafruit and when I connected it to my Adafruit Seesaw board it got very hot and didnt power up so I then connected the cable to a ...
by perigalacticon
Sun Jan 14, 2024 11:14 pm
Forum: ESP32 Arduino
Topic: programming error
Replies: 5
Views: 46009

Re: programming error

Thanks for the advice. OneDrive did cause me trouble once before but not recently. I did a manual installation because I used information from Adafruit's guide for their ESP32S3 Feather. It said to use manual installation to get the most recent boards setup because I guess at the time it wasn't ...
by perigalacticon
Sun Jan 14, 2024 9:03 am
Forum: ESP32 Arduino
Topic: programming error
Replies: 5
Views: 46009

Re: programming error

Thanks for the help. I followed the instructions at: https://docs.espressif.com/projects/arduino-esp32/en/latest/installing.html#windows-manual-installation and everything seemed to go as expected. However, when I attempt to compile in Arduino IDE 1.8.19 (latest) after choosing "ESP32S3 Dev Module ...
by perigalacticon
Sun Jan 14, 2024 12:06 am
Forum: ESP32 Arduino
Topic: programming error
Replies: 5
Views: 46009

programming error

I purchased a new ESP32-S3 board from Aliexpress. The product page does not say which board to select in the Arduino IDE to program it. I tried several, including ESP32 Dev Module. I selected the 16MB memory option and enabled PSRAM. I get this error regardless of which board or options that I ...
by perigalacticon
Wed May 30, 2018 11:24 pm
Forum: General Discussion
Topic: Core usage with Arduino
Replies: 1
Views: 6386

Core usage with Arduino

Hello,

As an Arduino user I am looking for hopefully definitive answers to these questions regarding dual core usage on ESP32 with Arduino code:

My understanding is that Arduino code runs on Core#1, named APP_CPU. And low-level WIFI operations run on Core#0, named PRO_CPU.

1. Is the above ...
by perigalacticon
Tue May 08, 2018 3:21 am
Forum: ESP32 Arduino
Topic: ESP32 WebUpdate?
Replies: 2
Views: 7035

ESP32 WebUpdate?

I am looking for an example sketch similar to WebUpdater.ino sketch for the ESP8266 that lets you upload a new sketch to a hosted webpage from a bin file on your computer. I haven't found it yet, does this sketch exist somewhere for the ESP32?

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