About DRicc.2

DRicc.2 · 2024-05-22

I recently have been working on a custom board with the stm32f030f4p6 for a gas sensor project, I just got it to bootload successfully and blink some LEDs so now I'm using the ADC channel to read values from it and converting it to a voltage level fo...

DRicc.2 · 2024-05-16

I am using the STM32F030F4P6 MCU and ST-Link V2 with tag connect (6- pin for SWD) and am having trouble bootloading the board. I have tried multiple configurations, with this one being ST-LINK GDB server:STM32CubeProgrammer v2.12.0 ...

DRicc.2 · 2024-05-10

A few months ago I made a post regarding a PCB I designed (see post here: https://www.reddit.com/r/PrintedCircuitBoard/comments/1b3wilu/pcb_design_review_request_mq2_gas_sensor/) where I used the STM32F030F4P6 MCU. I planned on boot loading this MCU ...

DRicc.2 · 2023-12-26

Previously I posted on this forum as I was having trouble converting the gas sensor ADC value to voltage.That problem has since been fixed, although I seem to be running into a new issue where my WS2812 RGB LED won't turn on, and the PuTTy monitor is...

DRicc.2 · 2023-12-24

Currently in the process of coding an MQ5 gas sensor, right now I was able to get the ADC value to appear on the serial terminal using PuTTy, but for whatever reason the voltage value always produces zero. I tried also changing the formula to have it...

DRicc.2 · 2024-05-29

So I read the schematic of the L476RG, and you are correct it is connected to 3V3 as well. Its unsurprising since most MCUs operate at that voltage range anyway.

DRicc.2 · 2024-05-26

I'm multiplying it by 5 because I am using pin A5 on the L476RG to read the value of the gas sensor, and that board is plugged into my computer and powered off of 5V, I have no way off reading directly off of my PCB bc I messed up with the pin config...

DRicc.2 · 2024-05-24

Based my formula off this website: https://learn.sparkfun.com/tutorials/analog-to-digital-conversion/relating-adc-value-to-voltage. The 5V is the system voltage, as I'm powering the gas sensor from my DC to DC boost converter which outputs 5 volts.

DRicc.2 · 2024-05-23

I increased the sampling size to 239.5 cycles, which is the highest on the stm32f030f4p6, also that post you linked it doesn't seem anyone answered your question, so can it be used as a reference?

DRicc.2 · 2024-05-23

I checked the datasheet (Link here: https://www.mouser.com/datasheet/2/321/605-00008-MQ-2-Datasheet-370464.pdf), but couldn't find anything on the output impedance. Also, I have the ADCValue displaying alongside the voltage. Should I leave the gas se...

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ADC channel accuracy issue on STM32F030F4P6

Target doesn't properly reset on custom board with STM32cubeIDE

ST-Link won't fully bootload successfully

Having trouble interfacing RGB LED and Gas Sensor

ADC value won't show voltage conversion

Re: ADC channel accuracy issue on STM32F030F4P6

Re: ADC channel accuracy issue on STM32F030F4P6

Re: ADC channel accuracy issue on STM32F030F4P6

Re: ADC channel accuracy issue

Re: ADC channel accuracy issue