ESP8266/ESP32

How to fix ESP32 PlatformIO error: 'LED_BUILTIN' was not declared in this scope

Categories: Electronics, Embedded, ESP8266/ESP32, PlatformIO

Uli Köhler

2021-09-27 1 min read

How to fix Linux ESP32 PlatformIO PermissionError: [Errno 13] Permission denied: '/dev/ttyUSB0'

Categories: Electronics, Embedded, ESP8266/ESP32, PlatformIO

Uli Köhler

2021-09-27 1 min read

How to connect ESP32-WROOM-32 SENSOR_VP & SENSOR_VN pins?

Categories: Electronics, ESP8266/ESP32

Uli Köhler

2021-07-26 1 min read

What is the SPI pinout of the ESP32 / ESP-WROOM-32?

Categories: Electronics, ESP8266/ESP32

Uli Köhler

2021-07-26 1 min read

ESP32 Ethernet RMII pin reference

Categories: Electronics, Embedded, ESP8266/ESP32

Uli Köhler

2021-07-25 0 min read

ESP32 minimal Wifi access point example (PlatformIO / Arduino)

Categories: Electronics, ESP8266/ESP32, PlatformIO

Uli Köhler

2021-06-20 0 min read

How to ping gateway in ESP32

Categories: C/C++, ESP8266/ESP32, Networking

Uli Köhler

2021-06-19 2 min read

Minimal ESP32 NTP client example using NTPClient_Generic and PlatformIO

Categories: C/C++, ESP8266/ESP32, PlatformIO

Uli Köhler

2021-02-07 1 min read

How to get current gateway IP address on ESP8266/ESP32

Categories: C/C++, Embedded, ESP8266/ESP32, PlatformIO

Uli Köhler

2021-02-07 0 min read

ESP32 Servo controllable via HTTP JSON API / web browser

Categories: ESP8266/ESP32, PlatformIO

Uli Köhler

2021-02-06 1 min read