Bluefruit EZ-Link not working properly
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- lbkulinski
- Posts: 116
- Joined: Wed May 07, 2014 4:41 pm
Bluefruit EZ-Link not working properly
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.
- Franklin97355
- Posts: 23911
- Joined: Mon Apr 21, 2008 2:33 pm
Re: Bluefruit EZ-Link not working properly
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?
- lbkulinski
- Posts: 116
- Joined: Wed May 07, 2014 4:41 pm
Re: Bluefruit EZ-Link not working properly
I am rewiring the Uno right now to see if it works. I can post a picture of the Mega.
- lbkulinski
- Posts: 116
- Joined: Wed May 07, 2014 4:41 pm
Re: Bluefruit EZ-Link not working properly
And a picture of the Uno.
- lbkulinski
- Posts: 116
- Joined: Wed May 07, 2014 4:41 pm
Re: Bluefruit EZ-Link not working properly
Here are the pictures
- Attachments
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- With Uno
- pic3.jpg (99.21 KiB) Viewed 633 times
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- With Mega (same wiring as with Uno)
- pic2.jpg (83.55 KiB) Viewed 633 times
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- With Mega
- pic1.jpg (124.14 KiB) Viewed 633 times
- lbkulinski
- Posts: 116
- Joined: Wed May 07, 2014 4:41 pm
Re: Bluefruit EZ-Link not working properly
And my mentor is having the same problem. He thinks it may be a software issue.
- adafruit_support_mike
- Posts: 67446
- Joined: Thu Feb 11, 2010 2:51 pm
Re: Bluefruit EZ-Link not working properly
I don't see a connection from the capacitor to the RESET pin on the Arduino. You need that to start the bootloader.
- lbkulinski
- Posts: 116
- Joined: Wed May 07, 2014 4:41 pm
Re: Bluefruit EZ-Link not working properly
Forgot about that. Let me see.
- lbkulinski
- Posts: 116
- Joined: Wed May 07, 2014 4:41 pm
Re: Bluefruit EZ-Link not working properly
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
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
- lbkulinski
- Posts: 116
- Joined: Wed May 07, 2014 4:41 pm
Re: Bluefruit EZ-Link not working properly
Do I need to use the Reset pin when using the Mega also or is it just the Uno?
- adafruit_support_mike
- Posts: 67446
- Joined: Thu Feb 11, 2010 2:51 pm
Re: Bluefruit EZ-Link not working properly
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.
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.
- lbkulinski
- Posts: 116
- Joined: Wed May 07, 2014 4:41 pm
Re: Bluefruit EZ-Link not working properly
It is working now. Thank you.
Please be positive and constructive with your questions and comments.