Hello, I am trying to change the voltage from an arduino Nano, I need to lower it, to something between 3 to 4 V, probably 3.9\3.7 something like that. anyway, in order to do that, I am using a buck-boost converter. when I connect the arduino Nano to the converter, the output voltage from the arduino, drops from almost 5V to 2.9V. what is the reason for that? can it be fixed?
thank you for your help in advance!
What "voltage"? The 5V pin or an output pin? (A boost/buck converter is no good for I/O signals.)
What's the current (amps or milliamps)?
What boost-buck converter?
Gil's Crispy Critter Rules, they apply to processor hardware:
Rule #1. A Power Supply the Arduino is NOT!
Rule #2. Never Connect Anything Inductive to an Arduino!
Rule #3 Don't connecting or disconnecting wires with power on.
LaryD's Corollarys
Coro #1 when first starting out, add a 220R resistor in series with both Input and Output pins.
Coro #2 buy a DMM (Digital Multi-meter) to measure voltages, currents and resistance.
Violating these rules tends to make crispy critters out of Arduinos.
Do not power the converter with the Arduino power it from an external power source, If you need to turn it on and off some have an enable pin.
output pin, i will check the current, but its very small, I tried it while using a USB port as a power source and also while using an external power source.
I will check at the lab what boost-buck converter
I am not using the arduino as a power supply, but more of a way to control power from afar. I do that because one guy at our lab is not in the country at the momment and he needs to control two different voltage outputs via his computer, and we wanted to use the arduino in order to do that. thank you for your advices, can you elaborate on the last sentence you wrote? I didnt really understand it.
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