can we work togather to make new wireless products?
Hi Jingxizhang,
This is really a nice project, very creative. I do think if we work at it will be a very good bluetooth products.
I can put bluetooth module into it.
1) It will be safe that connect to computer/mobile/PDA with wirless 2) The data will be processed by more powerful software. 3) We can use lots of BT handhold to display, sand data over wireless network.
For to do this, only thing you need to do is:
Send you data to RS232 port.
I never use STM32 Primer, so I don't know how to do you project. But I can see it is work great. I think you can easy setup RS232 port, and give me 1.8v - 3.3v DC power. Then I can put my tiny 12X22MM Bluetooth module in. My bluetooth system is very easy to use, just power on, wait 2 S, connecting, working……，just like wired RS232.
Re: can we work togather to make new wireless products?
Hello Xin Wang,
I am in ST and we are currently investigating solutions combining Bluetooth and the STM32. Could you let us know more about your solution: which Bluetooth module, which Bluetooth stack and profiles running on the STM32 (SPP, HID...).
Re: can we work togather to make new wireless products?
domi :
Hello Xin Wang,
I am in ST and we are currently investigating solutions combining Bluetooth and the STM32. Could you let us know more about your solution: which Bluetooth module, which Bluetooth stack and profiles running on the STM32 (SPP, HID...).
Regards, Dominique
Hi, Dominique,
Yes, I think if ST can put Bluetooth into STM32, that will be great.
I have several solutions:
1) The simplest one, just put my mini SPP Bluetooth module in. connect RS232 3 wire: TX, TR, GND, and 1.8~3.1DC power. My modules' size is 12mm X 21mm X 2mm. It has one button, pressed and held for a duration of five seconds, in order to pair with other side. You only need to pair once. Next time, just power on the system, it will auto connect, and work. For STM32, it is just like wire RS232 port.
2) Use STM32 with Bluetooth stack and profiles running on it. In this case, It will be a big job. but hardware cost will be low.
Compare 1) & 2) for STM32, I think 1) is better, easier method if for cases like STM32 Primer. But if it's for mass products, like mobile phones, we better go to 2)
Now I have several wireless medical equipment projects. I do use bluetooth for wireless solutions because there are lots of devices that already have bluetooth. We only need to develop our sides, other sides just have standard Bluetooth devices/profiles + application softwares.
My module has milt-profiles: SPP, HS, HFP.
If you want to more detailed infomation, please send me an e-mail.
Re: can we work togather to make new wireless products?
mxwang :
Hi Jingxizhang,
This is really a nice project, very creative. I do think if we work at it will be a very good bluetooth products.
I can put bluetooth module into it.
1) It will be safe that connect to computer/mobile/PDA with wirless 2) The data will be processed by more powerful software. 3) We can use lots of BT handhold to display, sand data over wireless network.
For to do this, only thing you need to do is:
Send you data to RS232 port.
I never use STM32 Primer, so I don't know how to do you project. But I can see it is work great. I think you can easy setup RS232 port, and give me 1.8v - 3.3v DC power. Then I can put my tiny 12X22MM Bluetooth module in. My bluetooth system is very easy to use, just power on, wait 2 S, connecting, working……，just like wired RS232.
So why we do not put it to wireless?
Regards,
Xin Wang
mwang56@gmail.com
Hello,
You are using an rs232 port, however in the data sheet of the STM32 primer, I could not find an rs232 port. Which pins did you connect to your bluetooth module. Or did you use the evaluation board which has an Rs232 port.
Re: can we work togather to make new wireless products?
or even easier use uart1. that goes to the ir on primer2 (you'll probably have to remove it). or on primer 1 the ir module is absent, so you can just solder the connections for the bt module.
Re: can we work togather to make new wireless products?
definitly. but most bt modules work with rs232 on ~ 3V ttl level or what ever support voltage is. if have here a module called "BlueMod+B20" from stollmann. it uses 3V supply and rs232 (3v level) to communicate. it's easy to integrate. but keep in mind, water is a perfect 2.4 ghz insulator ...
