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ImageNew interesting simple solution for high current applications, that can be used with ordinary FR-4 PCBs.

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Category:Voltage Monitoring, Battery Charge Measurement, Low Power Consumption
Severity:🟨 Low
Resolution:📟 Hardware
Description:When you have battery powered device with low power consumption during standby the device current should be as small as possible, so voltage divider from battery should be controlled and be enabled only during ADC measurement.
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Category:Power Control related, GPIO pins
Severity:🟥 High
Resolution:📄 Software or 📟 Hardware
Description:If load switch pulls power rail to ground any high signal cause current leakage through internal ESD diode.
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How to start with the new interesting ESP32C2 (ESP8684) SoC using modern and convenient VSCode IDE.

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Fixing incorrect predefined XTAL (onboard crystal) frequency, that cause incorrect frequency of output PWM signal and rubbish charactersin debug terminal.

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Let's find out the ESP32 internal pull-up/pull-down resistance by measuring of the real resistance of the using ampermeter.

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This advice can significantly improve your components library for achieving better precision of mechanical sizes.

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Make board tracing more enjoyable and electrical schematics easy-to-read using net coloring, this feature is available in KiCad and Altium Designer.

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Using new reference designator styles (U1 -> U1501) with page numbers to improve readability and modularity of the schematic sheets.

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If you make a device with external RTC module this essay can help you to make simplest backup powering (reverse power) using coin cell battery.

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Simple way to make hardware revision (REV1, REV2, REV3) using only one ADC pin, that helps to easy identify board version using MCU firmware, which give a change to easy maintain all board revisions taking into account all the device schematic changes .

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The only possible and correctly working way to extract (export) .step model from the EasyEDA footprint.

1.48K

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Load switches are used for power control of any loads, typically it's used to fully enable or disable power of integrated circuits (chips) to achieve low power consumption in sleep mode.

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Here is simplest high-side load switch on discrete components, that can be used instead of special ICs.

Firstly some work simulation in MicroCap and then real testing with board.

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Using slider – simple but powerful instrument for debugging and developing.

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Changing variable using manual typing.

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Changing variable using slider.

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admin admin How to open terminal in STM32CubeIDE (without install)?

Firstly open Device Manager (Win + R -> devmgmt.msc -> Enter...
2 months ago

Andrea How to open terminal in STM32CubeIDE (without install)?

Que hago si no me aparece ninguna opción de Serial port
2 months ago

Phillip 📘 How to download step 3D model from EasyEDA/LCSC/JLCPCB?

Thank you for posting this. It has been very useful.
2 months ago

simone gasparella 🌡️ Get temperature from STM32 internal temperature sensor (simple library)

hi… thanks a lot… reading some comment from ST they suggest to...
9 months ago

Durai M Simple buzzer library for STM32 HAL

Im using passive buzzer, everything is ok but buzzer sound is very...
10 months ago

Tom 🌡️ Get temperature from STM32 internal temperature sensor (simple library)

Replying to my previous comment — it was the ADC Continuous...
11 months ago

Tom 🌡️ Get temperature from STM32 internal temperature sensor (simple library)

Great tutorial, however i am having some issues with the timer:>...
11 months ago

admin admin 💻 HS402 3.0 ANDROID STM32 Oscilloscope PCB and assembling

Next part is already available: https://refcircuit.com/articles/16...
1 year ago

Dr X 💻 HS402 3.0 ANDROID STM32 Oscilloscope PCB and assembling

Very good,.waiting for next part.
1 year ago
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