Bluefruit EZ-Link not working properly

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lbkulinski
 
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Bluefruit EZ-Link not working properly

Post by lbkulinski »

I just got the Bluefruit EZ-Link - Bluetooth Serial Link & Arduino Programmer so there will be less wires. I soldered the headers on it, wired it up correctly and it worked the first time (I used an Uno). I was able to upload a sketch and everything worked perfectly. I then wanted to try it with one of my other projects with my Mega and the sketch would not upload. The Arduino IDE says it times out. The connection LED and TX LED both light up when I try uploading it, but it eventually tells me it times out. Is there a fix for this? My mentor bought one of these to and he is having the same problem. It seems as it would be a software issue, but I am not sure.

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Franklin97355
 
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Re: Bluefruit EZ-Link not working properly

Post by Franklin97355 »

Have you tried it with the uno again and did it work? Could you show us how you are connecting to the uno and the mega?

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lbkulinski
 
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Re: Bluefruit EZ-Link not working properly

Post by lbkulinski »

I am rewiring the Uno right now to see if it works. I can post a picture of the Mega.

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lbkulinski
 
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Re: Bluefruit EZ-Link not working properly

Post by lbkulinski »

And a picture of the Uno.

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lbkulinski
 
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Re: Bluefruit EZ-Link not working properly

Post by lbkulinski »

Here are the pictures
Attachments
With Uno
With Uno
pic3.jpg (99.21 KiB) Viewed 633 times
With Mega (same wiring as with Uno)
With Mega (same wiring as with Uno)
pic2.jpg (83.55 KiB) Viewed 633 times
With Mega
With Mega
pic1.jpg (124.14 KiB) Viewed 633 times

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lbkulinski
 
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Re: Bluefruit EZ-Link not working properly

Post by lbkulinski »

And my mentor is having the same problem. He thinks it may be a software issue.

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adafruit_support_mike
 
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Re: Bluefruit EZ-Link not working properly

Post by adafruit_support_mike »

I don't see a connection from the capacitor to the RESET pin on the Arduino. You need that to start the bootloader.

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lbkulinski
 
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Re: Bluefruit EZ-Link not working properly

Post by lbkulinski »

Forgot about that. Let me see.

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lbkulinski
 
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Re: Bluefruit EZ-Link not working properly

Post by lbkulinski »

I put it in and it still didn't work. I think it is a software problem that they may need to patch. When I try to upload the sketch I get these errors.

avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_getsync(): timeout communicating with programmer

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lbkulinski
 
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Re: Bluefruit EZ-Link not working properly

Post by lbkulinski »

Do I need to use the Reset pin when using the Mega also or is it just the Uno?

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adafruit_support_mike
 
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Re: Bluefruit EZ-Link not working properly

Post by adafruit_support_mike »

Yes, you need it for all Arduinos.

To program an Arduino, you need to launch the bootloader. That happens at the end of the microcontroller's power-up or reset process. The bootloader is what accepts data from the Arduino IDE, writes it to the microcontroller's program memory, then passes execution to the newly-loaded code once the transmission is done. If you aren't getting a reset, you aren't launching the bootloader, and the upload won't work.

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lbkulinski
 
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Re: Bluefruit EZ-Link not working properly

Post by lbkulinski »

It is working now. Thank you.

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