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Automating a two button momentary switch
I have the following remote which I want to automate with ESP32. Basically I need to bridge J3 with J1 or J3 with J2 or nothing. I was thinking it can be done with two relays (just need to make sure...
View ArticleMicroSD stops writing after 2^16 records
This code works fine writing and reading back uint16_t data but it stops writing after 2^16 records. Arduino accepts the pre_allocate only after the file is opened which suggests a problem that I...
View ArticleESP32 Board for High-Speed Stepper Motor Control
Hello Community, I'm currently working on a project that involves controlling stepper motors at high speeds using an ESP32 board with built-in WiFi. However, I'm facing issues with the ESP32 WROOM 32...
View ArticleReduce I2C clock frequency
Hello, I have connected my arduino nano 33 iot with a distance sensor (VL6180X) and I am loosing the connection (There is also a stepper motor so there is a lot of noise). I would like to ask you how...
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My arduino is not uploading any sketches
I tried running lufa library on my arduino and then removed it as it doesnt work as intended after that my arduino is showing two com ports and not detecting arduino evry time i upload a sketch i...
View ArticleAS5311 linear encoder
A short demo code for AS5311 with SSI protocol and Arduino UNO. Test performed with SSI protocol on the demo board AS5311-TS_EK_AB and 1mm pole length magnet strip provided with the kit. I didn't find...
View ArticleMAX9814 not picking up load sounds
Hello peeps, I am trying to build a device that detects a running battery powered saw and send a signal to enable my shop vac. To accomplish that I tried using a sound sensor. First I tried using a...
View ArticleHow to use LittleFS on ESP32 Boards?
try to get LittleFS to work on my esp32. I tried both esp32 wroom and esp32-s3. The code works on none. I get errors saying that: ))E (7) esp_littlefs:...
View ArticleI can't display my data from esp32 to my php server page (newbie)
Hello everyone, I'm sending data via URL with an ESP 32 device (GET request) to a remote server (000Webhost). My PHP page should only display my data with echo $_GET["data"]. But the data only appears...
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Brother Typewriter - ESP32 - Automation
Hi there, I'm building a EPS32 Interface to communicate with an old Brother WL-20 Typewriter directly reading and writing the 17 Port of the Keyboard. Because it is working with 5V Logic I need...
View ArticleSending the onboard Temperature Sensor data Data from BLE SENSE Rev2 To...
Hi everyone, I am working on a project to develop a room monitoring system with Arduino Nano 33 BLE Sense. My goal is to send temperature from the multiple arduino board acting as the peripheral...
View ArticleConnecting buttons to tft Led Arduino uno board
Hello, we are trying to connect the button to a TFT LCD screen , our problem is that the screen covers the inputs openings where we are supposed to plug the wires and connect them to the board, so we...
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Sensing 12v DC Motor RPM using tachometer via Motor Shield
Hello. I have an Arduino Uno WiFi Rev2 to which I have mounted an Adafruit Motor Shield v2 with break out pin wings either side sandwiched in-between. My problem is that i want to safely power a 4...
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Measuring up to 50V dc using arduino and a voltage sensor
hello everyone, i have 2 of these voltage modules : can i somehow combine them to be able to measure up to 50 volts or that wouldn't work? or should i make a sperate voltage divider 11 posts - 4...
View ArticleSerial Monitor printing out weird characters
Hello! I am working on a ESP32 CAM with Python for object detection. Whenever I try to attain the IP address of the camera after uploading my program to the device, the serial monitor instead returns...
View ArticleHeart rate sensor with arduino nano
Hello everyone, I have an Arduino Nano with the old bootloader (ATmega328P), and I'm encountering an issue when attempting to print data to the serial monitor. Specifically, while it does display the...
View ArticleIf statement not working with external button
Hi Group, I am having trouble executing my code in my if statement for when my button is activated (buttonPin == LOW). I am reading the button is pushed in my serial port and I can see when I press...
View ArticleChanging the default pins for usage of microSD card
I have a microSD adapter that has pins for CS, CLK, MOSI and MISO. The CS pin can be changed to be whatever digital pin number I want it to be, but it seems that the SCK, MOSI, and MISO have pre-set...
View ArticleProblem getting ESP01 to MySQL with AT commands
My setup consists of an arduino MEGA, an ESP8266-01 wifi module and an mq4 sensor whose values I want to store in a database, I have set up MySQL and can send values via apache like...
View ArticleWhat driver do you recommend for the lcd IST3004?
Hello Guys ! What driver do you recommend, IST3004, because I can't find only IST3020, IST3088, IST7920 in the u8g2 list! Google doesn't show any results on how to operate the LCD! Has anyone...
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