asim
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Powering a power bank with solar panels
Accepted answer
2 votes

Usb ports are usually designed as an extra feature, mppt may not provide maximum amps (maybe 2Amps only) through usb port which will result in power wastage of solar panels You can instead use all 4 ...

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Simple ESP32 driver for solenoid valve rated 24V/2A?
1 votes

Esp32 driving a Relay through NPN transitor seems good to me, I have an Incubator with Esp32 switching 60Watt Incandescent light bulb on Main 220v AC and a 100Watt Halogen Light Bulb on 12v DC ...

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5V Powerbank not turning on automatically when > 100mA are drawn
1 votes

The problem according to my experience is not the power draw, it is because of the output capacitor inside the powerbank that is more than capable of driving your circuit after initial load, power ...

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can I parallel two TP4056 to charge 1 cell?
0 votes

Other than one module sending false voltage signals to other hence confusing it as Battery Voltage, I don't see a problem but I would rather use cheap diy powerbank circuit instead, they mostly charge ...

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5V to 12V DC-DC converter to power an 11 watt bulb
0 votes

As others have pointed, the starting load will be huge but that is not all, 11 watts at 12v means 916 milliAmps but on 5v it will require you will need atleast 2.2 Amps, add losses to that because ...

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12VDC Fan rated at 0.08A only drawing 0.04A, can I increase current draw in order to bring the rpm up?
0 votes

0.08A is probably the MAX power consumption while the fan is spinning at its rated rpm, Not normal power consumption. Fans are used in casings which decrease the airflow and make fans struggle hence ...

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