Forum >The Bluetooth V3 is not compatible with official Arduino UNO and Mega
The Bluetooth V3 is not compatible with official Arduino UNO and Mega
R2D2C3PO 2011-05-14 05:11:41 8006 Views4 Replies Important Notice:
After thoroughly tests , we have identified that DF-Bluetooth V3 is not compatible with offical Arduino UNO Mega 2560.
The main reason is the resistor on RX Pin of Arduino is too high.
The DF-Bluetooth V3 is working on DFRduino Dumlinove Uno/Mega 1280/2560 without any problem.
After thoroughly tests , we have identified that DF-Bluetooth V3 is not compatible with offical Arduino UNO Mega 2560.
The main reason is the resistor on RX Pin of Arduino is too high.
The DF-Bluetooth V3 is working on DFRduino Dumlinove Uno/Mega 1280/2560 without any problem.
2012-01-08 08:47:37 Ricky,
could you please provide us with some concrete instructions how to prepare Arduino UNO to work with Bluetooth V3?
a lot of thanks
vanja
could you please provide us with some concrete instructions how to prepare Arduino UNO to work with Bluetooth V3?
a lot of thanks
vanja 2011-11-30 08:27:07 Hi Ricky:
you said The main reason is the resistor on RX Pin of Arduino is too high.
Why add higher resistor ? It supposed to be lower?
and adding resistors doesn't work
sorry for my poor English i'm not an American K29645806
you said The main reason is the resistor on RX Pin of Arduino is too high.
Why add higher resistor ? It supposed to be lower?
and adding resistors doesn't work
sorry for my poor English i'm not an American
K29645806 2011-11-28 20:13:58 The only way is to modify the resistor. Replace the 1k resistor to 4.7k will do the work. 
R2D2C3PO
R2D2C3PO 2011-11-27 05:12:05 OK,I knew that the resistor on RX Pin of Arduino is too high
What should I do so taht the arduino UNO can receive data from bluetooth V3?
Is increasing voltage working?
The TX pin on bluetooth V3 is already 4.4V. When I send message ,it just drops to 4.2V?
It should drop more right? K29645806
What should I do so taht the arduino UNO can receive data from bluetooth V3?
Is increasing voltage working?
The TX pin on bluetooth V3 is already 4.4V. When I send message ,it just drops to 4.2V?
It should drop more right?
K29645806 