Electronics

Where to find ESP-WROOM-32 schematic PDF

Categories: Electronics, ESP8266/ESP32

Uli Köhler

2021-10-05 0 min read

Is your PD device 802.3bt PoE++ Type-3 or Type-4?

Categories: Electronics, Networking, PoE

Uli Köhler

2021-09-30 1 min read

Does 802.3bt PoE++ work with 2-pair power or does it require 4-pair power?

Categories: Electronics, Networking, PoE

Uli Köhler

2021-09-30 0 min read

What does "PSE" mean in PoE / Power over Ethernet context?

Categories: Electronics, Networking, PoE

Uli Köhler

2021-09-30 0 min read

What does "PD" mean in PoE / Power over Ethernet context?

Categories: Electronics, Networking, PoE

Uli Köhler

2021-09-30 0 min read

What is the default PlatformIO / Arduino ESP32 TIMER_BASE_CLK?

Categories: Arduino, Electronics, Embedded, ESP8266/ESP32, PlatformIO

Uli Köhler

2021-09-27 0 min read

What is the default PlatformIO / Arduino ESP32 CPU clock frequency?

Categories: Arduino, Electronics, Embedded, ESP8266/ESP32, PlatformIO

Uli Köhler

2021-09-27 0 min read

How to fix PlatformIO serial monitor scrambled output

Categories: Arduino, Electronics, Embedded, ESP8266/ESP32, PlatformIO, STM32

Uli Köhler

2021-09-27 1 min read

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