Grey-level on GxEPD2 BW library
I wonder if the GxEPD2 library can show grey-level bitmap images ? (and in particular on a GDEY042T81 E-Ink display from Good Display?) more questions: Can the GxEPD2 library show grey-level at all or...
View ArticleNeed some advice for a GSM module
Hi all, I'm struggling with something I succeed (but forgot) several years ago. I got a datalogger (arduino Uno based) on which I would like to create a GSM/GPRS connection for the following tasks:...
View ArticlePicking a random order of 10 numbers
I have been banging my head against a wall trying to randomise the contents of an array without any number repeating. randnumbe[10] {0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; I want to fill these 10 array...
View ArticleNaN displayed, sometimes
I am having issues with a few averages that are displaying NaN in Serial and my tft display. In the serial monitor I have the analog reads to 2 of the averages and they show up, but the average...
View ArticleArduino sketch function limits - script kills all lights?
I'm re-visiting Arduino after a long time, so I'm sort of new to it. I'm making a game using Unity keypresses to tell Arduino how to control 3 LED lights, and 1 LED strip. I'm using the library here...
View ArticleClik here to view.
ESP8266 NodeMCU and MPU6050 accelerometer sensor data transfer to Firestore
I am trying to write a code that will transfer data from firebase database to cloud firestore every two minutes for 2 seconds using ESP8266 NodeMCU and MPU6050 accelerometer. but when I run the code I...
View ArticleRelocating hex file ide2.2.1
I have a project that I originally wrote using 1.8. I could place the hex files conveniently in my project directory. I have a custom bootloader that uses just the hex files. I am updating the project...
View ArticleBmp180 different modes, check mode
Hy I use the adafruit 085 libary for my bmp180. I want to use the ULTRALOWPOWER mode. So i test it with: Adafruit_BMP085 bmp; void setup() { Serial.begin(9600); if (!bmp.begin(BMP085_ULTRALOWPOWER)) {...
View ArticleIs there 12V version of MQ2 and MQ135 gas sensor
Hello to everyone.I am interested if there is MQ2 or MQ135 sensor alternative which works on 12V ? 3 posts - 3 participants Read full topic
View ArticleBetter solution for Serial.debug
I have Serial.prints throughout my (sizeable) code. I need them to see what is going on and to make sure I am actually achieving my goals. But... then, I have to go through and comment them all out,...
View ArticleKnight rider with Photocell controller
hello im brand new to arduino and ive been tasked with creating a code that makes 6 LEDs run a knight rider circuit with the speed depending on the value of the photocell. it was working fine before i...
View ArticleClik here to view.
High Density Power Connection Orientation
Hello All, I currently have a Portenta H7 Lite and Portenta CAT.M1/NB IoT GNSS Shield and was wondering if the order that power comes in matters? Should the power pin (5V) or "VIN" go through the...
View ArticleRS232 from Arduino Uno not controling amplifier
I'm attempting to use an Arduino Uno and a potentiometer to control a Bijou 600 amplifier via RS232. I have a MAX3232 to convert Arduino's TTL to the amp's RS232 input, and I'm fairly confident my...
View ArticleBoard selection goes back to "No board selected"
I just moved to IDE 2.2.1 from 1.8.13. Everything seems okay, except that when I open a new sketch (am running thru the examples, obviously has been a while), I always get asked to select the Board. I...
View ArticleAdding Tools to Arduino Tools Menu
I am trying to add the ArduinoImageCapture plugin to my Arduino IDE Tools menu as shown in this project SIMPLIFIED! How to Use OV7670 Camera with Arduino. - Circuit Journal and explained in this...
View ArticleClik here to view.
How can you make 3 breadboards work from 1 arduino Iot 33?
I need to control 6 servo motors and I don't have enough space on my breadboard. I added 1 more breadboard on each side but they don't work. Where do I put the jumper wires to power it and make it...
View ArticleLilygo T-Display-S3 Amoled - not appearing on Mac USB port
Hi, I'm after some assistance. Have recently purchased this board and I've connected it to my Mac (putting the board into boot mode - holding down boot and pressing reset). I get a blank screen so...
View ArticleHELLO, New arduino using esp8266 for P10 LED Display and its not working....
/* Contoh penggunaan library DMDESP email : bonny@grobak.net - www.grobak.net - www.elektronmart.com */ #include <DMDESP.h> #include <fonts/ElektronMart6x8.h> #include...
View ArticleHow Count Void Loops?
What instructions would count 3 Void loops then stop the loop from operation? thank you 11 posts - 5 participants Read full topic
View ArticleRecognition of objects
Hey guys! I wanted some guidance on a project I'm working on. I was wondering if it's possible with an Arduino to recognize an object via a camera. My goal is to be able to detect an object and...
View Article