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At a sampling rate of 22050 Hz, if a sine wave signal with a frequency of 11024 Hz (Nyquist frequency minus 1 Hz) is generated, audible beats (amplitude fluctuations up to the point of the signal ...
-8 votes
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109 views

I have a nucleo-L476RG board. Pin A0 is connected to my lab power supply as well as the ground on my board. Nothing in between, nothing else. An image of my setup can be found here. The red clamp is ...
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0 answers
38 views

we made a code in STM32CUBEIDE to control the ADC/I2C of our datalogger test but we have a problem because when we run the code, in line 156, the string ‘voltage_ch0’ gives us a value of 0 and nothing ...
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0 answers
68 views

I am facing the issue that ADC DMA cannot work even I try re-init in many ways. Information: STM32L476 Stop mode and wake up via RTC Can re-init USB so the terminal still works Clock configuration ...
0 votes
1 answer
70 views

I am trying to use interrupts with the ADC module. I am using PA0 and PA1 as analog inputs for the ADC, and PC0 and PC1 as external LEDs. My goal is: when PA0 is triggered, PC0 should turn on. when ...
1 vote
1 answer
55 views

I'm using ADC continue scan mode with DMA for 2 channels, config by register, not use HAL library, make sure pin mode is analog mode When ADC just turn on clock, every thing be ok, voltage of pin PA0 ...
0 votes
0 answers
62 views

According to the documentation, the SAADC (ADC) device has a maximum sampling rate of 200kHz (ksps), a value that is the sum of a minimum TACQ (acquisition time) of 3us and a conversion time of "&...
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0 answers
65 views

The YL-69 sensor(for soil moisture using a comparator circuit LM-393) is functional. When tested with C code on the Arduino IDE, it prints the correct values on the serial monitor. However, when ...
0 votes
0 answers
49 views

Not sure if the is a h/w or s/w issue but here goes- I'm using the MAX11040K to sample 9 channels (all microphones) which give a signal between 0 to 3.3V DC-biased by 1.65V; that's input to all ...
0 votes
1 answer
65 views

I have a STM32WB55VG device where ADC Sampling for one channel is happening at a rate of 40 kHz. As the sampling duration is about 5 seconds the data (400 kBytes) can not be stored in RAM (only 256 ...
0 votes
0 answers
136 views

TLDR: Whenever I try to read a voltage that is lower than about 2.2V the display will freeze up. Only after I increase the voltage then after like 10 seconds it resumes operation. I am tinkering with ...
0 votes
0 answers
98 views

I am creating a project with an AD7124-8 PMDZ eval board with an STM32H755ZI nucleo board. Communicating through : SPI Mode - 3 ( CPOL - 1, CPHA - 1 ), MSB first, 8 bit data length, No CRC. I have ...
1 vote
1 answer
93 views

I am new to the tinyavr 1 series microcontrollers. I've tried copying the basic example out of the Microchip TB3209 guide, but it doesn't seem to do anything. I use the below code, where PA3 is an LED ...
2 votes
1 answer
66 views

I am using adc7768 to receive ADC samples. According to datasheet to calculate CRC, we can do it every 4th or 16th sample. My question is for 4 samples last 3 samples CRC will be header of 4th sample. ...
0 votes
0 answers
45 views

See attached my waveform of input to channel of ADS1115, my code, and my output that I am getting I cannot get the output matplotlib waveform to plot smoothly like my input waveform from oscilloscope ...

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