06-Oct-2017, 02:58 AM
(05-Oct-2017, 07:00 PM)Fint Wrote: Quick question, in read that the nano can only offer 40mah to what you connect to it. The receiver pulls way more. Am i missing something?
Hello Fint,
My understanding is the 40mA is the maximum current per analog/digital pin can draw from the chip. In the DIY video the RX is connected to the 5v pin which is powered by USB and typically rated to 500mA minus the draw from chip, however with USB OTG this may also vary from host device as it may limit the current draw for USB OTG devices.
In my experience, I can power the RX5808 and a HC-06 Bluetooth module from the Arduino USB - 5v pin without any issues.
However the full schematic recommends powering from a dedicated 5v regulator connected to the Arduino 5v pin. You can view the schematic @ https://www.pidflight.com/pidflight-lap/build-your-own/
Hope this answers your question
Cheers,
Christian