JW01 VOC sensor
Has anyone succeeded in making a JW01 VOC sensor work? I have a module that runs using I2C and one that uses UART. 1 post - 1 participant Read full topic
View ArticleURGENT HELP Magnetometer Works On and Off
I am using the MMC5983MA magnetometer for a rocket computer brain. We have a flight friday morning and need to have it giving proper outputs. Initially I had problems with it, but the other day I...
View ArticleBalancing using echo sensors
I am working on a project of building a small two-wheel robot, like a Segway, but with echo sensors instead of accelleration sensors. My inspiration came from the following article:...
View ArticleM5 Stack Ultrasonic sensor emergancy
I have got a bit of a problem with an I2C ultrasonic sensor from M5 stack, does anyone have an example of code for an Arduino uno or know what the library is for it. I have been unable to succeed in...
View ArticleMlx90614 gy-906-bcc problem
i need to use mlx90614 and mpr121 sensor together but they both use i2c and same 0x5a address so after i use chatgpt it suggest me use softwire and give me code after i use code i can't see mlx90614...
View ArticleAdding ir receiver
hi everyone im new to arduino this is my code the aim of this is to remotely activate it they leds flash and stop randomly, there are two colors i just need to know what to write const int buttonPin =...
View ArticleHi, I am having a problem using the PIR sensor (12v Securico) with my ESP8266
I am using a 12V 1.5A adapter with a buck converter to power the ESP8266. The sensor is working, but the code does not produce the correct output 2 posts - 2 participants Read full topic
View ArticleReplace IR touch controller
I'm going to buy one of this IR touch panels, the 14.1'' version if that matters. I want to replace its controller and make my own. The goal is to retrieve the status of all the pixels. It's for a...
View ArticleHow to solve RFID CARD and Selenoid Door lock error?
I don't know how to face this terror anymore. access is always denied #include <SPI.h> #include <MFRC522.h> #define SS_PIN 10 #define RST_PIN 9 MFRC522 rfid(SS_PIN, RST_PIN); int relayPin...
View ArticleFast low resolution camera or sensor
Hello. To compute movement of objects I need to find low resolution camera or other 2D sensor with high refresh rate, something like 16*16 pixels, with preprocess downscaling maybe and frame rate over...
View ArticleEncoder data read with interrupt
Hi, I have a question about how to read encoder data using interrupt function in arduion. I am using the encoder from below link. Pololu - 250:1 Micro Metal Gearmotor HP 6V with 12 CPR Encoder, Back...
View ArticleAS5311 alternatives
Hi, ive been looking into building a DRO for my lathe based around a AS5311 magnetic encoder, but funds are tight at the moment so trying to save pennies whereever possible, Does anybody know of a...
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Help with DFRobot_INA219
So I have been working on a project using a DFRobot_INA219 and so far I have had no luck, I believe I have connected everything appropriately, but not even the example code works, and like it just...
View ArticleCable for homemade jumpers
I have always used ordered my jumper cables ready made and have a selectionof M-F, F-F and M-M of various lengths. However, I recently bought a crimping tool and dupont connector kit with 2, 3,4,5,6...
View ArticleDetermining when equipment (wheelchair) is in a specific room
Hello all, I could use some input on a specific project I'm working on. I need a mechanism to determine when my grandfather's wheelchair is in the bathroom in his nursing home. Due to medical issues...
View Article7 in 1 soil sensor with arduino 2560
I need help to setup my soil sensor with Arduino 2560 i am using a fdit 7 in 1 sensor the code i am currently using is #include <SoftwareSerial.h> // Define DE and RE control pins #define RE 42...
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How to Wire arduino uno with ESP32 and Zhed Soil PH Meter, 7 in 1
Can anybody help me , i need help with connecting and coding the arduino chip with the ESP32 internet ship and Zhed Soil PH Meter, 7 in 1 i’ll put a photo of the sensor and other components 3 posts -...
View ArticleMaking a 3 phase voltage and current measurement system using arduino
Hi, I have a project to make a 3 Phase AC voltage and current measurement (<200 V). If it possible and safe, what sensors/ measurement method that can be used before i put it in arduino and display...
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Connecting an Arduino GIGA R1 to an EZO complete pH via an microUSB-UART...
Hi everyone, I'm a complete beginner working on my first Arduino project and need some help troubleshooting. My goal is to build a pH controller for leaching experiments. Here's the hardware I'm...
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