TechOverflow blog

How should a PoE flyback transformer look on the oscilloscope

Categories: Electronics, EMI, PoE

Uli Köhler

2021-12-16 0 min read

How to compute resistor voltage divider ratio using Python

Categories: Electronics, Python

Uli Köhler

2021-12-16 0 min read

How to print SMTP port 587 STARTTLS certificate using openssl s_client

Categories: Networking

Uli Köhler

2021-12-16 0 min read

How to initialize LittleFS in PlatformIO on the ESP32 using the lorol/LittleFS library

Categories: Arduino, Embedded, ESP8266/ESP32, PlatformIO

Uli Köhler

2021-12-16 1 min read

ArduinoJSON: How to fix 1 or 0 being printed instead of true/false

Categories: Arduino, Embedded, PlatformIO

Uli Köhler

2021-12-16 0 min read

FreeRTOS mutex minimal example

Categories: Embedded, FreeRTOS, PlatformIO

Uli Köhler

2021-12-15 0 min read

ESPAsyncWebserver basic ArduinoJSON handler example

Categories: ESP8266/ESP32, Networking

Uli Köhler

2021-12-15 0 min read

ESPAsyncWebserver handler example with int query argument

Categories: ESP8266/ESP32, Networking

Uli Köhler

2021-12-15 0 min read

Example of how to do std::enable_if<...> with multiple conditions

Categories: C/C++

Uli Köhler

2021-12-14 0 min read

What is the Endianness of the ESP32 microcontroller platform?

Categories: ESP8266/ESP32

Uli Köhler

2021-12-14 0 min read