Using an I2C EEPROM device with an Arduino is very simple, as the Arduino already has connections for I2C and libraries to use them. Many of the I2C EEPROMs can be configured for unique addresses, allowing you to use multiple devices in the same circuit. Another advantage with many I2C EEP...
There are a number of factors that influence the memory usage on the Arduino Uno. Ultimately, the memory constraints of the Arduino are causing the issue with bad sensor readings. Note that the Arduino Uno has 2KB of SRAM for data, stack, and heap combined: https...
In this tutorial, you’ll learn how to use ESP32 interrupt pins in Arduino Core. We’ll also discuss how to use interrupts and write your interrupt service routine (ISR) for ESP32 external interrupt GPIO pins. Then, we’ll move to the Arduino Core libraries that implement drivers for the...
Thus, the question is: what is the value range we should use in this Arduino PLC IDE? Analog Input Scaling The analog input values correspond to a range of 0-65535 to represent the full 0 to 10 V input span, with some extra left over for overvalues. When I tested the signal with ...
For this example, we will use GPIO13. Please take in consideration that, in the NodeMCU board, the pins of the microcontroller don’t map to he pins of the board. The correct mapping can be seenhereand, as described, the GPIO13 will map to the D7 pin of the board. ...
Take a look at your board to see if it is set to use the on-board antenna or the IPEX connector. Using the on-board antenna works well if you are close to your router. We recommend using the IPEX connector with an external antenna for better results. ...
Thanks for your advice or sharing your experience!! Use CH_PD input as a RESET with a pullup resistor. Any issues, experiences on this? Will the device boot up the same? Generally, I saw misbehavior when try to restart chip with Reset pin. ...
Thanks for the post, it has been very useful. About how to read the data from the flash, I understand the getting methods with: byte, word, or longe because the functions have as argument the pointer to return the data. But I don’t understand how to use the SetBlock Flash, th...
These disposable electrodes shown in Figure 2 provide the same signal transmission as reusable electrodes, with added convenience. Each peel and stick electrode is pregelled and designed for one use only. It is very cost effective compared to other electrodes. It is easily attachable to the ...
a current sensor Re: Read if voltage on external line is on or off with esp12#89073 Byschufti-Fri Oct 09, 2020 3:59 am @jurajA: no, a voltage sensor. just use a simple optocoupler for detection to keep esp and aux 12V supplies separated. ...