5 replies to this topic

[Kiran Madipally]

Hi, I was recently experimenting with Netduino. I did not know from where we can give the 5V from Netduino to my circuit, so I experimented and I saw there was 5V difference in voltage between the pins (the 6 holes, sorry, I do not know the proper terms, I am just an amateur). After my experimentation, I tried to again debug the application I was writing. However, this failed. After this whenever I am trying, the Netduino is not detected. When I switch on, the blue LED is lit for a around 2 seconds. The ACT, 100, FDX pins also blink once at the beginning. I tried Pressing the button and connecting to the USB, but to no avail. Can anyone please help me in how to get this working? Thanks in advance . -Kiran

[Chris Walker]

Hi Kiran, If the blue LED comes on for two seconds and then turns off, your board has booted. When you plug it into your computer via USB, what does it show up as in Device Manager? Have you installed the Netduino SDK (including drivers)? Welcome to the Netduino community, Chris

[Kiran Madipally]

Hi Kiran,

If the blue LED comes on for two seconds and then turns off, your board has booted.

When you plug it into your computer via USB, what does it show up as in Device Manager?

Have you installed the Netduino SDK (including drivers)?

Welcome to the Netduino community,

Chris

Hi Chris,

Thanks for the reply. After I restarted my comp and a little more fiddling with the netduino, I finally got it to detect *phew*...! In any case, what is the best method to get a 5V output for my circuit while using netduino? Is there any recommended approach that I can take?

Thanks,
Kiran

[Chris Walker]

Hi Kiran,

Thanks for the reply. After I restarted my comp and a little more fiddling with the netduino, I finally got it to detect *phew*...! In any case, what is the best method to get a 5V output for my circuit while using netduino? Is there any recommended approach that I can take?

Glad that you're up and running! *whew*

If you're powering your Netduino via USB or the power barrel, then the 5V pin on your Netduino should provide a 5V source for your circuit.

Please note that USB power is "roughly" 5V and could vary from 4.5V-5.5V in range. But it's close If you need a regulated steady 5V, then plug in your Netduino using a DC power adapter.

Chris

[Dan Morphis]

Hi Kiran,

Glad that you're up and running! *whew*

If you're powering your Netduino via USB or the power barrel, then the 5V pin on your Netduino should provide a 5V source for your circuit.

Please note that USB power is "roughly" 5V and could vary from 4.5V-5.5V in range. But it's close If you need a regulated steady 5V, then plug in your Netduino using a DC power adapter.

Chris

To add to what Chris has said, do NOT plug your board into both USB and power it via the barrel jack. Its an either or situation, unless you want bad things to happen IIRC.

-dan

[Chris Walker]

Hi Dan,

To add to what Chris has said, do NOT plug your board into both USB and power it via the barrel jack. Its an either or situation, unless you want bad things to happen IIRC.

Actually, you can plug in both DC power adapter (to the power barrel) and USB simultaneously.

We added circuitry to the board which detects the power adapter and automatically switches its power supply away from USB.

For scenarios where you want to unplug and reattach USB while your program is running...or you need to drive a bit more power...there's no harm in having both sources powered.

Chris