ArduinoGeneral

PowerShield Doesn't Work at All

userHead tackccw 2015-08-13 19:42:01 4401 Views6 Replies
Can you advise if the Power Shield can serve the following function?

PWRIN with a 12V power source and power a 5V Arduino board. From your WIKI doc, "If you want to regulate Vin and PWROUT, you need to connect the PWROUT wires to Vin and to the device.". I have just followed this instruction and it just burnt my board. What jumper settings I need if I want to power on a 5V Arduino with 12V PWRIN?
2015-08-24 15:26:23 Sorry about misleading description sentence you mentioned, but as you can see from the specification:
•Supply voltage:4.5-35V
•Output voltage:1.25-12V

So it's compatible with Arduino I think.

Anyway, to power 5V Yun through Vin from a 12V external power supply, you can try:
step1
set the two jumpers at left side

step2
plug in the 12V power, and adjust the output voltage to 5V by the tune pot

step3
wire the power output (5v) up to Vin port of yun

(65.26 KiB) Downloaded 713 times
userHeadPic Leff
2015-08-20 22:41:14
leff wrote:Really?May I know what's your arduino board? Uno?

The Uno's Vin port accept
Input Voltage (recommended): 7 ~ 12V
Input Voltage (limits): 6 ~ 20V


Arduino Yun. which accepts only 3 - 5V. From my perspective, your website said it is Arduino compatible. It is totally misleading. As you don't even know Arduino input voltage are varying from board to board.

Anyway, back to my original question. Can it power up a 5V Arduino board with a 12V power source through PWRIN? In contrast, can it power up a 12V device connected to PWROUT, say a 12V motor with a 5V power source from the Arduino board? Please give a concrete application example. I really don't understand how this shield is working.
userHeadPic tackccw
2015-08-19 18:34:07 Really?May I know what's your arduino board? Uno?

The Uno's Vin port accept
Input Voltage (recommended): 7 ~ 12V
Input Voltage (limits): 6 ~ 20V
userHeadPic Leff
2015-08-19 00:41:37
leff wrote:There are two methods to PWRIN with a 12V power source and power a 5V Arduino board:
2 Do not use power out socket( only plug the power module into Arduino Board )


That is exactly how I set my system up. I first tried with a PWRIN with 5V power source and the Arduino board was up and running. After the successfully trial, I switched power source with a 10V supply, It then burnt my Arduino board out. Could you further elaborate how to setup with method 2? How can you adjust the voltage supplied to the Arduino board?

My setup. You can see the Vin always have the same voltage as the PWRIN. No regulation at all.
(1.29 MiB) Downloaded 861 times
userHeadPic tackccw
2015-08-19 00:31:24
leff wrote:2 one on left, one on right



Do you mean top one on left and bottom one on right ? (I assumed both PWRIN and PWROUT are one my left hand side)
userHeadPic tackccw
2015-08-17 12:38:31 Hi ,

Sorry for the obscure sentence you mentioned on our wiki which brought trouble to you! :| Which board was burned out? Is it the power module for the short-circuit.

To your question:

There are two methods to PWRIN with a 12V power source and power a 5V Arduino board:
1 Use Power Output socket
2 Do not use power out socket( only plug the power module into Arduino Board )

:!: Jumpers near the Power Input for different method:()
1 both left or right;
2 one on left, one on right

By the way, I have revised the wiki.

tackccw wrote:Can you advise if the Power Shield can serve the following function?

PWRIN with a 12V power source and power a 5V Arduino board. From your WIKI doc, "If you want to regulate Vin and PWROUT, you need to connect the PWROUT wires to Vin and to the device.". I have just followed this instruction and it just burnt my board. What jumper settings I need if I want to power on a 5V Arduino with 12V PWRIN?
userHeadPic Leff