RE: Power Connection problem

Hi Everyone, I have a project that needs to connect rp2040, rapsberry pi pico 0 to modules : HW‑357, 3.7v 4000mA battery, usb for charging, now for other sensors

Ky-008 ,HC-SR501 , NEO-M8, 3V-5V DC vibration motors ,microSD card breakout board / microSD card Adapter, please include the breadboard..

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michaelkellett 8 days ago in reply to dang74 +4

If you must have 3.3V you will have a hard choice. To get the most out of a nominal 3.7V Lithium Ion battery you would like to run it down to 3V or even 2.7V. Fully charged it will deliver 4V. For…
dougw 9 days ago +1

The battery could have a max voltage higher than its nominal 3.7V , maybe as high as 4.2 V. Pico has a regulator that outputs 3.3V and expects interface signals to be 3.3V compatible. Do you have a specific…
dougw 8 days ago in reply to dang74 +1

Systems that require multiple supply voltages are very common and it is much simpler now to use efficient switching converters to meet these requirements than it used to be. It is very common to generate…

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robogary 9 days ago

Recommend you first draw or sketch a schematic and check each component for 3.7v capability. You may need to include 5v circuits as well as 3v circuits.

I usually build my own breadboard using convenient connectors for power distribution , usually pcb to screw terminals. Ill include screw terminals for an external fuse and on/off switch.
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GeoForeman 8 days ago in reply to robogary

Thanks I will draw it.
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GeoForeman 8 days ago in reply to robogary

Thanks I will draw it.
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