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Bluefruit LE UART Friend Not Powering On
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Bluefruit LE UART Friend Not Powering On

by jsegal on Wed Jan 27, 2021 5:22 pm

Hello,

My team and I ordered parts in early December for our engineering capstone project and due to winter break, we were offsite for a few weeks. We got to test our components the week of January 11th, and we noticed our Bluefruit LE UART Friend is not powering on. We used the standard coding examples for the Arduino Uno and repeatedly checked the wiring and soldering to ensure it was correct. The component was even resoldered but none of the LEDs on the component powered on. We checked with a few of the other forums about the LE UART Friend not powering on and it looks like it might be a component issue, unfortunately. We ordered the component with multiple others on December 1st, 2020. The part number is 2479. Invoice Number: 2421840. Any help is greatly appreciated!

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Re: Bluefruit LE UART Friend Not Powering On

by franklin97355 on Sun Feb 07, 2021 1:56 pm

Can you post pictures of your connections from both sides?

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Re: Bluefruit LE UART Friend Not Powering On

by jsegal on Wed Feb 10, 2021 4:31 pm

Of course! So here is the wiring we have done for the component. We are connecting the Bluefruit LE UART Friend to an Arduino Uno. We took the solder off a second time after repeated attempts to power on the Bluefruit failed, which is why the headers are not shown in the photos. The wiring has remained consistent.
BF1-min.jpg
BF1-min.jpg (752.45 KiB) Viewed 133 times

BF3.jpg
BF3.jpg (789.26 KiB) Viewed 133 times

BF4.jpg
BF4.jpg (709.34 KiB) Viewed 133 times


Wiring Colors to Uno
Black to GND
Red to 5V
Purple to Digital pin 8
Yellow to Digital pin 9
Orange to Digital pin 10
Green to Digital pin 11
Gray to Digital pin 12

Wiring Colors to LE UART FRIEND
Black to GND
Red to Vin
Purple to RTS
Yellow to RXI
Orange to TXO
Green to CTS
Gray to MOD

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Re: Bluefruit LE UART Friend Not Powering On

by franklin97355 on Wed Feb 10, 2021 7:18 pm

Do you have the jumpers or headers soldered? That could be a problem in the making.

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Re: Bluefruit LE UART Friend Not Powering On

by jsegal on Fri Feb 12, 2021 4:40 pm

The above photos are a reference for how we are wiring the UART Friend to an Arduino Uno. When we soldered the device earlier, we used the wiring configuration seen in the photos. The device did not power on, so it was resoldered. Again, the UART Friend failed to power on. At that point, we removed the soldering, tried soldering it again, and reconnected the wires. Unfortunately, the component still did not power on. We then removed the solder.

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Re: Bluefruit LE UART Friend Not Powering On

by franklin97355 on Fri Feb 12, 2021 5:12 pm

By not powering on what do you mean? Do any lights turn on? can you post the back of the bluefruit?

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Re: Bluefruit LE UART Friend Not Powering On

by jsegal on Fri Feb 12, 2021 5:24 pm

By not powering on, I mean not LEDs turn on, nor can any examples from the Wifi Library can be run.

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Re: Bluefruit LE UART Friend Not Powering On

by franklin97355 on Fri Feb 12, 2021 6:49 pm

Ccan you post a picture of the back of the bluefruit?

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Re: Bluefruit LE UART Friend Not Powering On

by adafruit2 on Sun Feb 14, 2021 2:19 pm

the red LED should def be lighting up/blinking - what if you connect only VIN to 5V and GND to GND?

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Re: Bluefruit LE UART Friend Not Powering On

by jsegal on Wed Feb 17, 2021 4:22 pm

To clarify, only connecting Vin to 5V and GND to GND, with no other wires connected?

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Re: Bluefruit LE UART Friend Not Powering On

by adafruit2 on Wed Feb 17, 2021 5:12 pm

yeah!

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