Capacitor for backup power
Hello, I have a project which needs 'some power' when AC power shuts down, to e.g. do some processing and send information via SIM7600. I use normally an AC Power adapter 230Vac/9Vdc to power an UNO....
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Unknown language showing off at serial plotter. how do i fixed this issue
its showing unknown language text. someone please help me with this thing and also guide me how can i fix this issue . 3 posts - 3 participants Read full topic
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Arduino with df mini player
Hello. I just started my arduino trip. And I got a things working with the typical led strips etc. ( gonna be using arduino for modeling) But now I’m trying to wrap my head around the df player mini...
View ArticleADC readings after waking up from POWER-DOWN
Hello, I want to read and analog input before and after going into power-down mode. Without the sleeping function, it works like it should. However, as soon as the power-down mode is integrated, the...
View ArticleSerial.print Program Lag
Using Serial.print for debugging significantly slows down a sketch. Once I have a sketch working as I want (for now), I may use find and replace and change Serial.print to //Serial.print and this...
View ArticleCan Bus Translator
Hi, im car mechanic. I done m54b30 bmw 330i e46 engine swap to bmw 120i 2008 e81. I have a problem that my cluster dont work due diffrent can bus protocol between ecu and cluster. Can anyone guide me...
View ArticleHow to upload hexadecimal file in arduino?
Hello everyone, can someone tell me how to upload the .hex file to an Arduino either through the IDE or a different application. Or if it is possible to create an application in Visual Studio (I know...
View ArticleAdafruit sph0645 with xiao rp2040 input
Hello everyone, I have recently bought i2s mic from adafruit and am trying to simply read the mic and output the readings to serial monitor. I am using I2SInput example from arduino example library....
View ArticlePowering led-strip with an Arduino
Hello there! I am wanting to create a new project with a string of 50 WS2811 LED pixels. The strip runs at 5V DC and 3A. The problem is that I am having a hard time finding out if you could power this...
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Controlling DC Motor with Mosfet, Potentiometer and Relay
I am trying to control the speed of a DC Motor using a Potentiometer and Mosfet while at the same time using a Relay and an IR Receiver to switch the power on and off to the Motor. I attach a Picture...
View ArticleCAN BUS sniffing (to start with)
I have an Arduino Mega and a Seeed CAN BUS Shield, along with all the relevant libraries, as far as I can tell. Using the sample sketch for OBD-II PIDs, I can pull standard PIDs with no trouble, so I...
View ArticleMy Nano 33 IoT keeps on disconnecting for a split second then reconnecting...
So I am trying to use an Arduino Nano 33 IoT for a project but it just keeps disconnecting and reconnecting randomly for some reason. Sometimes I am able to upload the code and then while the code is...
View ArticleCan Wifi.begin(ssid, password) be executed asynchronously?
My IoT module is Realtek 8720DN, which uses the Ameba Arduino SDK. The startup time of Wifi.begin() is 3-10 seconds, and I need to wait for this function to complete. I would like to ask if there is a...
View ArticleInconsistent Delay function in loop?
Hello Everyone! I am trying to create an autofeeder (nema) motor that dispense every 4 hours. However, the results in very inconsistent, i.e the autofeeder will dispense 8 hours or 9 hours while...
View ArticleRaspberry pi pico in arduino.ide not compiling
Hi to all. I need help. I'm trying to program a raspberry pi pico into an arduino.ide, but I'm getting errors. I have installed all the libraries and configured everything but the sketches are not...
View ArticleArduino won't create new file in SD card when the filename change depends on...
Hello guys, i think i need your help, i already work on my project around 3 weeks i guess. My Arduino project this time is to make a turnstile door access system. Maybe if you look at my program as a...
View ArticleAutomated Arduino Door
I want the door to unlock automatically when I approach it. It locks automatically when I'm not close to the door. It will connect with my phone, unlock it when it is near, and lock it when it is far...
View ArticleArduino ‘Settings’
I tried to type ‘sizeof()’ in an Arduino sketch, however when I clicked on the ‘z’ button, I had a new tab pop up labelled as ‘settings’ I now cannot type any word that has a ‘z’ in it, as this tab...
View ArticleArduino Giga R1 as Datalogger for temperature Data
Hello, I am a student entrusted with a project to datalog data on an SD card. My problem now is using USB Stick however since I couldn`t initialize SD-card with the SD.h library (error: double...
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WIFI Problem in custom board with SAMD21 and NINA W102
Hello everyone. I made a custom PCB based on arduino nano 33 iot, and added a few sensors. The steps I did were: I burnt the bootloader into the ATSAMD21G18A. Tested the blink and it was ok. Updated...
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