John Opsahl
I was able to make significant progress towards adding wireless data transfer with Bluetooth this weekend. The image above is the breadboard unit used for Bluetooth testing.Earlier in the week I had some issues getting the low-cost AT-09 Bluetooth modules to work. I was unable to connect to them with my phone. They also didn't respond as expected when I tried to configure them with AT commands. Based on comments online, seems like others have had similar issues with the AT-09 modules. To get away from this, I ordered HM-10 modules. The HM-10s have been working great without issue.
I have been using "Serial Bluetooth Terminal" for Android to connect with the HM-10 on my phone.
The screenshot below shows some of the functionality is working so far. Blue text "H", "B", and "D" commands are from the phone. Green text is what is received from the Arduino controlled HM-10 Bluetooth module. The "D" command transfers over all data from the SD card to the phone.
Excited to get Bluetooth functionality added so I can pull data off the OpenDendrometer in the backyard from the comfort of my living room.
Discussions
Become a Hackaday.io Member
Create an account to leave a comment. Already have an account? Log In.