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ESP32: Analog values measure at the input Others/Hardware/Arduino-ESP32
ESP32: Analog values measure at the input
18.06.2021 123
The ESP32 has two analog digital converters and can thus read values in parallel on most GPIO pins A voltage of 0 to 3 3 volts can be applied to each input PIN or measured The values are read as integers from 0 to 4095 with the analogRead(PIN) command The analog in

ESP32 Code: Create an output pulse with adjustable pulse width via button and display on LCD and digits Others/Hardware/Arduino-ESP32
ESP32 Code: Create an output pulse with adjustable pulse width via button and display on LCD and digits
25.04.2020 852
Arduino ESP32 Code: Create an output pulse with adjustable pulse width via button and display on LCD and digits The following Arduino ESP32 nodeMCU code does the following (with Arduino ESP32 microcontroller code) Two buttons generate a pulse with an adjustable pul

8 Charater LED anzeigen an einer ESP32 mit TM1638 Led Buttons Others/Hardware/Arduino-ESP32
8 Charater LED anzeigen an einer ESP32 mit TM1638 Led Buttons
16.04.2020 1155
8 Charater LED display on an ESP32 with TM1638 Led&Buttons Description: The following code brings the first and last LED of a TM1638 LED&KEY display to the leuchen The Arduino ESP32 code serves as a code example for operating the LED board on an ESP32

ESP32 NodeMCU mit TM1838 Buttons Others/Hardware/Arduino-ESP32
ESP32 NodeMCU mit TM1838 Buttons
16.04.2020 1102
ESP32 NodeMCU mit 8 LED & KEY Description: With this application you can operate a button input board on an ESP32 nodeMCU With the code example, the input board is operated in such a way that when pressing a button the appropriate LED lights up

Arduino Code: Create variable pulses with ESP32 DevKit Others/Hardware/Arduino-ESP32
Arduino Code: Create variable pulses with ESP32 DevKit
15.04.2020 672
Arduino ESP32 Code: Create variable pulses with 20 pulses with multiple lengths of 150ns nanoseconds (minimum GPIO time at Arduino ESP32) Application: As you can see here, an ESP32 is used to generate very fast pulses The control serves as a contro

Arduino: view float with 2 commas Others/Hardware/Arduino-ESP32
Arduino: view float with 2 commas
15.04.2020 707
Problem: in an Arduino calculation of a float variable (flow number, comma value), the result is always calculated without decimal places The calculation varFloat=1000 myFloat1 always yields 0 00 Solution: In the case of calculation o

Connect an LCD display on ESP32 Others/Hardware/Arduino-ESP32
Connect an LCD display on ESP32
15.04.2020 2427
ESP32 LCD display This guide shows how to connect and display a two-line LCD display on an ESP32 DevKit nodeMCU Connect SCL and SDA signal lines Connect the GPIO21 and GPIO22 lines to the LCD display GPIO22 ->SCL Cl

Create a fast rectangle signal on an Arduino ESP32 Others/Hardware
Create a fast rectangle signal on an Arduino ESP32
14.04.2020 689
How fast is the maximum switching frequency of an Arduino ESP32 microcontroller? The following small code on an ESP32 microcontroller shows the generation of a direct rectangle signal on a GPIO pin digitalWrite(13, H

Create a fast rectangle signal on an Arduino ESP32 Others/Hardware
Create a fast rectangle signal on an Arduino ESP32
14.04.2020 715
How fast is the maximum switching frequency of an Arduino ESP32 microcontroller? The following small code on an ESP32 microcontroller shows the generation of a direct rectangle signal on a GPIO pin digitalWrite(13, H

Calliope : Sending text via serial interface to a pc Others/Hardware/Calliope
Calliope : Sending text via serial interface to a pc
07.11.2019 849
In this example, the Calliope learning computer sends data to a connected PC via a serial port The PC receives the data and displays the data in a console program The code serial writeLine("a text to send") is sent to the compute

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