Clik here to view.
AS608 Fingerprint Sensor not working with ESP32 (Serial Error) (resolved)
Hi everyone, I'm new to the ESP32 world and currently working on a university project where I need to use the AS608 fingerprint sensor with my ESP32 (ESP-32S with CP2102 driver). I have tried various...
View ArticleSclae Get_offset
I have a project to measure weight using HX711 and a commercial 200 kg load cell. As I'm trying to optimize the measurements, I'd like anyone to give more details on the offset error and the role of...
View ArticleProblem with pressuer sensor mpx4115 in proteus app
I'm facing an issue using the MPX4115 pressure sensor in Proteus, and I'm unsure if the problem lies with the simulation software or my code. I've included the conversion equations to kPa from the...
View ArticleHC05 Reliability
Hi all, I've got a very simple set up with an Arduino Uno connected to an HC05 Bluetooth module. The pin outs are: VCC of HC05 to 5V on the Arduino Gnd of HC05 to Gnd on the Arduino Tx to Rx (pin 10)...
View ArticleSHT30 not showing up as I2C device
I bought a sensor from a site that claimed it was a SHT10 chip with included 10k pull-up resistors on the clock and data pins and also a decoupling capacitor. After testing the a SHT1x lib I could not...
View ArticleZMOD4510 example for Arduino
hello I've bought ZMOD4510 sensor. And renesas documentation mentions there is an Arduino example, but I cannot find it anywhere there ZMOD4510 - Gas Sensor for O3 and NO2 | Renesas For instance, here...
View ArticleESP32 MAX31865 Readings after reconnecting VIN
Hi all, i have a very strange problem reading the temperature of an PT1000 temperature probe with a MAX31865 amplifier module. I use the Adafruit library to get the temperature: GitHub -...
View ArticleGetting rid of letters in serial input
I'm working on a project where I need to collect data from a load cell using the serial monitor. I can collect this data fine, the problem is that it comes with some random letters before and lbs...
View ArticleClik here to view.
Esp32 + max31865
Hey Guys, I try to build an temperature controller with an esp32. The parts I've used: ESP32-WROOM-32D https://de.aliexpress.com/item/1005006336964908.html MAX31865...
View ArticleCascadeable touch sensors
I'm going to design a new toy for my daughter. I'm looking for a cascadeable touch sensor that allows me to put a lot of them using few signal lines - an SPI needs a CS line for each one and I2C needs...
View ArticleClik here to view.
E38S6G5 and KY-040 Rotary Encoder with a BLDC motor interrupt problem
Hi all, I'm just creating a project for a yarn winder based on this one: Thingiverse Electric Wool Winder by ChPech This is an electric wool winder driven by a brushless DC motor, controlled by an...
View ArticleClik here to view.
Issue Using ACS712 Current Sensor and Voltage Sensor Simultaneously with...
Hi everyone, I'm working on a project where I’m trying to measure both current and voltage of a solar panel simultaneously using an Arduino. Here's my setup: Current Sensor: ACS712 20A, connected in...
View ArticleIssues with Grove-3-Axis-Digital-Accelerometer
Hi Everyone. Im trying to connect a Grove - ADXL345 - 3-Axis Digital Accelerometer(±16g) to my Ardunio Uno R3 but I keep getting the following output when using serial monitoring. I swapped out the...
View ArticleClik here to view.
I want to measure each battery voltage in the BMS, how should I configure the...
Hello I'm trying to charge 18650 batteries using a BMS module. I wanted to know how the voltage of each battery changes while charging, so I installed a voltage sensor. First, here's a picture of when...
View ArticleOv7670 camera and esp32 wroom kit
Hi to all, I'm trying to interface the esp32 wroom kit with the camera ov7670. Im able to write - read using i2c to the camera, but to be able to get the pixel data I need to read the output clock...
View ArticleClik here to view.
DHT sensor connection
I connected a HT sensor AM2301 to a Nano 33 IoT but the values returned are always wrong. I correctly connect the 3V3 pin, the GND pin and the DATA pin but the values returned from the sensor are...
View ArticleClik here to view.
Help with RFID Sensors
Struggling with these RFID-RC522 sensors for a dozen hours. First off, I'm having trouble getting these sensors detected at all. But when they do connect, they always detect RFID tags. Until they...
View ArticleClik here to view.
Problem with AS5048A Rotary Encoder
Hi, I'm new to SPI and I thought a small project with AS5048A encoder would be a good introduction but so far no luck! I got my hands on an AS5048A chip which I made a PCB for using the datasheet as a...
View ArticleJoystick modules have many dead zones
Hi I'm trying to make a rc controller for my rc model I could finally get everything to work, but I realized the two joystick modules are not accurate, many dead zones Do you think replacing them with...
View ArticleTwo Grove - ADXL345 - 3-Axis Digital Accelerometer (16g) on Arduino UNO R3
Im an absolute beginner at this stuff so bare with me. Im trying to connect two Grove - ADXL345 - 3-Axis Digital Accelerometer(±16g) to my Arduino. Can anyone assist me in doing this? I can access one...
View Article