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Results tagged with esp32
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user 367111
For questions about the ESP32 series of microcontrollers. Use in conjunction with the "microcontroller" tag.
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Is a USB power adapter a more unstable source of power than a computer?
When I use my mini PC to power my ESP32-C3 and HX711, my load cell readings are somewhat stable. …
- 293
0
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1
answer
30
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Voltage references to keep load cell readings stable
My load cell readings (handled by my HX711) become unstable when I replug the USB cable (which is powering my ESP32-C3). And they become stable again if I reset the ESP32-C3. …
- 293
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Is putting capacitors in both ESP32 and HX711 overkill in this circuit?
I was getting erratic readings from my HX711, which was receiving power supply from my ESP32. I figured it was catching noise and power fluctuations from my ESP32. … So I added a 0.1 μF capacitor and a 10 μF capacitor to the VVcc and GND pins of my HX711 and ESP32. The readings have been perfect so far.
Is this overkill? …
- 293
2
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1
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10 µF and 0.1 µF capacitors not making any difference in filtering out noise
I have two circuits (green and brown) featuring a load cell, HX711, and ESP32-C3:
The HX711 and ESP32-C3 go on top of those round female pin header. … People suggested I do this to keep the noise from the ESP32-C3 from distorting the load cell readings (especially when the ESP32-C3 connects to Wi-Fi.) …
- 293
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Caps vs. no caps = the same noise?
This is a setup with an ESP32-C3 and HX711.
In this oscilloscope reading, there is a 10 μF cap and a 0.1 μF cap across the VCC and GND of the HX711 (it makes the load cell readings more stable). …
- 293