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The voltage sensor value is different from the multimeter

Hello, I measured the voltage of 18650 batteries with a voltage sensor module, and the values ​​seem to be different from the multimeter. The voltage sensor module I used was this module. amazon.com...

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Sensor recommendations

I'm currently using two VL53L1X distance sensors that stopped working out of nowhere. The exact same thing happened with the VL53L0X distance sensors. Here's the link to the VL53L1X sensors i was...

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Small MCU with hardware Uart

I was wondering if anyone has any recommendations on any small MCU (preferably something I can program with arduino, like the attiny85) that has a built in Uart. I've been over the options like using...

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MAX30102 readings are maxing out at 125 BPM

I have a heartrate and blood oxidation level monitoring circuit using a seeeduino XAIO and a MAX30102 sensor. I am using the code from the following repository: GitHub -...

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Load cell is not working

Hello guys, I'm having some problems with my load cell. At first, it looks like is working fine but then I noticed that when my hand gets close to the cell, it changes the values of serial monitor....

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Incorrect Temperature Reporting on Raspberry Pi 4

Hi, I am using an Arduino Uno and MAX31856 board to controller heater cartridges and to monitor the temperature. The code below runs perfect on my Macbook and my coworker's Windows. We both have...

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BNO085 troubles

Hello everyone, we have been racking our brains for some time now and can't find the answer for our BNO085 based project. The module reacts to the movement, shaking, but when it goes smoothly and slow...

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Finally a solution for the Chinese Sound module ZTS-ZS

github.com GitHub - rin67630/ZTS-ZS-Sound-level-Arduino: Finally a working solution for the chinese ZTS-ZS... Finally a working solution for the chinese ZTS-ZS Sound level module... The chinese ZTS-ZS...

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A3144 Hall Sensor not working as expected

Hi, I do have a small controller which uses a 502J potentiometer for a throttle. It actually gets 3,3v and "returns" the state of throttle. Has 1,65v meaning zero throttle, going up to 3,3v when...

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Bmx055 intermittent

Hi, I recently got a bunch of these cheap (maybe a bit too cheap) IMU sensors: Mine actually have the following text on the pcb itself: CJMCU, CJMCU-9DOF I could not get them to work on my bluepill,...

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Ultrasonic Sensor HCSR-04

Hi everyone, I wonder if you can help me, I have this code below using ultrasonic sensor HCSR-04. My problem is I am only getting a printout of zero on the serial monitor.``` int trigPin = A0; int...

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NDIR SCD30 CO2 sensor

Anyone used this sensor with Arduino for industrial uses ? I am getting perfect values in my home and open air environment but when I am using it inside an industry environment where co2 value will be...

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ToFFuture XT-S1 Range Finder Distance Measurement

Hello everyone, I am having trouble getting the full range out of the ToFFuture XT-S1 ranging module. I can get to around 12000mm (39ft) without issue, but after that, the sensor jumps to over 65000mm...

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Strange behaviour from HX711

Hi, So I have recently bought a 100 gram loadcell with a couple of HX711 boards. I wired everything up to an arduino nano with a NRF24L01 module to send the raw values to another nano. When I first...

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Opto encoder direction using a single wire input

Hello. New here. I have an opto encoder on a brushed motor on an interrupt on a mega and h bridge. All works as it should. I'd like to try to work out the motor direction. I realise my opto encoder...

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Raindrop sensor‘s four interfaces

Hi,i encounter some difficulty about the raindrop sensor, on the raindrop sensor ,there are 2 pins , and it link to anther device ,like this ,and i want to ask,What do these four interfaces do?sorry i...

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TLV493D-A1B6 - Bus configuration with multiple sensors

I have followed the Infineon-TLV493D-A1B6 3D Magnetic Sensor UserManual V. 1.03 to establish Bus configuration with multiple sensors, 3 TLV493D-A1B6 Sensors to be precise. The 3 Sensors are connected...

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Anemometer suggestions without moving parts

Are there any anemometers without moving parts for Arduino that have really low resolution? (0.01 m/s) The only ones I have found are by Renkeer and they are hard to get by where I am as they only...

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Strain gauge drafting

Is there any way to remove or decrease draft while using strain gauges? 2 posts - 2 participants Read full topic

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Ttp223 - Extend touch range

Hi I'm re-posting this topic because nobody wrote an answer, and i think is a very common question. First of all, @ max574984759845, may be the solution is to remove the capacitor C1 in your board...

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