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3

No! Most likely it will not work. An LED lights up if the Voltage between the Anode (one side of the LED) and cathode (the other leg) exceeds a so called forward voltage (Vf). This Vf depends on the creation process and differs between different colors. Vf can be between abt. 1.8 Volt (red LEDs) and abt. 4.2 Volt (blue LEDs). Even if the LEDs would have the ...


2

You connected the V- and V+ probes of the INA module direct to the V- and V+ of the solar panel. That means you connect V+ with V- from solar panel over a 0.1 Ohm resistor. That is like a short. The Solar panel gets overloaded and the voltage breaks down. Lucky you, the solar panel can not provide more current. If it could, then the shunt resistor would be ...


1

I'd check 3 things: If it's a specific USB port/cable problem, not related to the NodeMCU itself (your said it interacted with your USB keyboard, what makes sense if it's a computer-usb issue). Try to connect the NodeMCU to a different USB port/hub in your computer using another USB cable. Of course it could be a USB-Serial driver issue. Please make sure ...


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