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How to insert "null" value in ArduinoJSON

Categories: Arduino, Embedded
Uli Köhler

Uli Köhler

0 min read
How to fix error: invalid conversion from 'int' to 'esp_mqtt_event_id_t' on the ESP8266 or ESP32

Categories: Arduino, Embedded, ESP8266/ESP32, MQTT, Networking, PlatformIO
Uli Köhler

Uli Köhler

0 min read
How should the Ethernet RMII clock look on the Oscilloscope?

Categories: Electronics, Networking
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Uli Köhler

0 min read
How to use a specific espressif32 platformio version in PlatformIO

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

Uli Köhler

0 min read
What ESP-IDF version does PlatformIO with Arduino use

Categories: Arduino, ESP8266/ESP32, PlatformIO
Uli Köhler

Uli Köhler

0 min read
How to use specific arduino-esp32 version in PlatformIO

Categories: Arduino, Embedded, ESP8266/ESP32, PlatformIO
Uli Köhler

Uli Köhler

0 min read
How to fix Arduino error: 'size_t' has not been declared

Categories: Arduino, C/C++, Embedded, PlatformIO
Uli Köhler

Uli Köhler

0 min read
How to fix Arduino I2C Wire error: call of overloaded 'begin(const int&, const int&, int)' is ambiguous

Categories: Arduino, C/C++, Embedded, PlatformIO
Uli Köhler

Uli Köhler

1 min read
How should a PoE flyback transformer look on the oscilloscope

Categories: Electronics, EMI, PoE
Uli Köhler

Uli Köhler

0 min read
How to compute resistor voltage divider ratio using Python

Categories: Electronics, Python
Uli Köhler

Uli Köhler

0 min read