Buy Solu JY-MCU HC Slave Bluetooth Serial Port Transeiver Baseboard Mini module// Arduino Wireless Bluetooth Transceiver Module Slave 4Pin Serial. Only US$,buy JY-MCU Bluetooth Wireless Serial Port Module for Arduino from DealExtreme with free shipping now. JY-MCU Bluetooth Serial Port Module (Master). Model HCARDU Condition New. The Hobby Components wireless Bluetooth module is intended to be.
| Author: | Zulujinn Fenribar |
| Country: | Uruguay |
| Language: | English (Spanish) |
| Genre: | Travel |
| Published (Last): | 9 December 2009 |
| Pages: | 212 |
| PDF File Size: | 10.10 Mb |
| ePub File Size: | 4.80 Mb |
| ISBN: | 717-2-74118-846-6 |
| Downloads: | 38673 |
| Price: | Free* [*Free Regsitration Required] |
| Uploader: | Arashiramar |
Thanks again, Stoyan Like Like. Hi Erich, great post.
Connecting Arduino Uno and the JY-MCU Bluetooth module using SoftwareSerial
Other than that, I have my contact email listed on the About page of this blog as well if something cannot be shared in in public. You cannot do it the same way for the Arduino, as unfortunately there is no Processor Expert for that microprocessor family.
After successful connection the pattern changes to 2 flashing and big pause. Measuring temperature with DS18B20 temperature sensor.
You need to check the details of your microprocessor manual if and how you can enable internal pull-ups. Keep in mind that you only can send AT commands do the module if it is in command mode. What do you think?
Bluetooth module stays awake while the main electronics is powered off. Seems to work for me.
Not elegant, and not recommended for a product you are going to sell, but probably safe and reliable for the lab. However, the presence of a pull-up will also draw unnecessary current if the input pin is being driven, correctly, to logic 0 by external circuitry. I am not entirely sure how to go about this as i am still new.
Note that Blketooth am still using a voltage divider to shift the TX signal from the Arduino to 3. Now when the Key is up 3. If PC sends information via Serial, then we send buetooth information over via Bluetooth.
Thanks again for taking the time to write this. If the red LED is blinking, then no connection has been made, so it is clear that it does work for you. Hi Erich, I read about your work on it and I am pleased that you have posted so much details about it.
Have you ever observed anything like that?
Easy Arduino Bluetooth Communication with JY-MCU Bluetooth module
If there is any data received by the bluetooth module, send it over the regular Serial connection to our PC. Only two pins to drive the module, other than that the interface is exactly the same as serial communication to PC via USB. Incidentally, mine works just fine at 3. If you open up SoftwareSerial constructor docsSoftwareSerial constructor is defined as such:. Blurtooth you help me?.
I suggest you hook up a logic analyzer or oscilloscope to the RX and TX pins and try different baud rates. Hi Charles, you nailed it! However, it would have a use if your electronics were powered off and the Bluetooth module bluetootj powered on: Any thoughts on it will be greatly appreciable.
Easy Arduino Bluetooth Communication with JY-MCU Bluetooth module
With this I can see what is getting to the connector, lbuetooth what ends up at the Bluetooth module jt-mcu. Indeed, 8K did the trick! I tried to wire it to 3. One speculation and one suggestion from me: I verified this with the module connected: And all my existing modules work as expected, so it is definitely not a wiring or software issue.
Yes, this issue is not related to 3. A workable solution for converting RS TxD signals to match a 3. Hi I am having the same problem, the thing is my model does not have the diode urs had. That 2 flashing and pause sounds like an error code of the module, I have never seen that. And you need a two-way communication as the protocol is bidirectional. Then current flows to GND through the pull-up, and it is best removed, or replaced by a pull-down bluuetooth available on the KL25Z.
Bypassing the diode is only an option if you know what the problem is. If it responds as HC to the host, I know it has the correct firmware on it. Check out the 74LCX14 inverters etc if you need the polarity inversion. Maybe it has a different firmware see this post about different firmware? You are commenting using your Twitter account. Some micros including the KL25 and so I guess all the Hluetooth micros have bits which can bluetoooth the polarity of RxD and TxD, which overcome that problem.
Here is a picture of the updated wiring. I can connect bletooth it, and asks me for the Pairing Code, and it blueooth the default pairing code Any help is appreciated. But direct connection will be cheap and simple.
Thanks for sharing this, same module here, no response from it, now it works! I ended up connecting the bluetooth device to the 3. The problem is that I can use the module, but I can not change the name or speed of it.