Arduino Uno Wifi Rev4 Connection to InfluxDB
Hello Arduino community, I'm currently working on a project that involves connecting an Arduino Uno Wifi Rev4 to InfluxDB, but I'm struggling to find any resources or example code on this topic. I was...
View ArticleClik here to view.
AREF on Uno R4 using ADR ICs
Hi, I use an analogic reference (ADR4540) pin for better noise handling on analogic measurement. I bought the ADR4550 and 4533 and made a simple circuit with two 100nF capacitors and a 1uF capacitor...
View ArticleNot getting data from AK8963 magnetometer in mpu9250
First post. Sorry if this isn't the right place, but looked for something like Development/Programming Questions, for example, and couldn't find. Connected an ESP32S3 Dev Board (no pin 22, btw) to an...
View ArticleSynchronous serial interfaces with Arduino uno
hello all. I have to carry out a project entitled the study of synchronous serial interfaces. I know that given the theme I could use I2C and SPI. On the net I found as a project idea a scheme...
View ArticleI tried ARIES board with arduino ide and got an following error
An error occurred while uploading the sketch /home/swt/.arduino15/packages/vega/tools/vegaflasher/002/flasher.bat /dev/ttyUSB0 /tmp/arduino_build_245871/HelloWorld.ino.bin sudo: a terminal is required...
View ArticleI need some help in my fingerprint project
To begin with, this program is should be work by input your fingerprint and then the lock will be open. But you also can registes new fingerprint by type the default password with keypad by input 000,...
View ArticleHall Pass Systems in Education: Seeking Guidance and Best Practices from the...
As educators, we are considering implementing hall pass systems in our schools to enhance student safety and accountability. However, we would like to gather insights and best practices from the...
View ArticleFram.write with float variable
I am experimenting with FRAM and I can't find out how to write float variables. I am using fram.write32(addrLoc, myData.humid); to write the variable and using humid=fram.read32(readLoc);,...
View ArticleATTiny85 sending garbage to serial
The fuses were set to HfuseDF and Lfuse62 on the ATTiny with arduino as ISP. But when I press "S" to print the Serial Number it send garbage data. #include <SoftSerial.h> #include...
View ArticleAttiny88 Development Board Problem
Hi, I decided to do wireless button box with using attiny88 development board as a transmitter, arduino pro micro as a receiver. Both of them use NRF24L01 for communication. I also use breakout...
View ArticleBest imu with sensor fusion
Hi, I was wondering in the $30/40 range, an IMU with integrated sensor fusion. I have to replace the BNO055 because I saw afterwards that its self-calibration at startup cannot be deactivated (device...
View Article【Help】Arduino serial port input operation problem
As shown in the follow, I want to make an input of four decimal numbers, and then Arduino converts those four numbers into four eight-digit binary numbers, and then combines the four eight-digit...
View ArticleClik here to view.
Pro Mini with Lora sleep current has changed, how to fix?
I've got an Arduino Pro Mini set up as a minimal lora node with an RFM95W module. I've removed the regulator and power led from the Pro Mini, and there's a MCP1700 on the board. It's like one of...
View Article3.2 tft display not showing my code
Hello folks, I need help connecting a 3.2 inch TFT display. My problem is that the code I uploaded is not displayed. I use an Arduino nano esp32 for this and have the following pin assignment. Can...
View ArticleI2C slave: Restrictions in Wire.onReceive handler?
I'm struggling to find a proper specification of the I2C receive behaviour using the Wire library. I have an Arduino configured as an I2C slave and I've set up a message handler using...
View ArticleClik here to view.
Programming circuit for DS2502
Hi, I'm trying to program a DS2502 eeprom as per the instructions here: GitHub GitHub - garyStofer/DS2502_DELL_PS: Arduino script for programming a one wire... Arduino script for programming a one...
View ArticleMy ESP32-D0WDQ6 Cant do anything
I can't even blink the nodes, it stops like this: Sketch uses 262825 bytes (20%) of program storage space. Maximum is 1310720 bytes. Global variables use 21344 bytes (6%) of dynamic memory, leaving...
View ArticleHow to measure lipo batt cells voltage?
Hi LiPo batteries are generally 3.7-4,2V cells wired in series. I need to measure their voltages (in a 3 cell battery). I'm building a flight controller based on Arduino and MPU6050 and it would be...
View ArticleCommunication between Pico and Nano using NRF24L01
Transmitter Code in Nano: #include <SPI.h> #include <nRF24L01.h> #include <RF24.h> RF24 radio(7, 8); // CE, CSN pins const byte address[6] = "00001"; // Address of the receiver const...
View ArticleArduino Nano ESP32 keeps disconnecting after code is uploaded
Hi, after uploading my code via usb my arduino nano esp32 is disconnecting from my laptop. I've been testing with an example program and immediately after the code is uploaded, the board disconnects...
View Article