Hi,
I want to use DA14580 to deliver high and low digital signal to my bio amplifier chip. And i can control the output signal either high or low via Bluetooth from my computer.
Is this possible?
I also try to use the codeless tools to do this but other than AT command everything else is error. Isit because of the development kit I am using is TDK 14809?
I am very new to hardware-software configuration because my background is CMOS design.
Please help me.
Device:
Hi Lee Km,
I am sorry, the question in quite generic, can you please be more specific on what you are trying to do ? Interfaces, use case ? can you please share a bit more informations about this ?
I dont have a TDK dev kit in order to be able to test that, what kind of error is that you are getting when you try to run the Codeless project ?
Thanks MT_Dialog
Hi MT_Dialog,
Sorry for late response.
So i have a self designed bio amplifier chip. This chip is able to measure ECG signals, it also comes with different gain mode, so if i send in high and low digital signal to its MUX switch, the mode can be switch.
So i am thinking to transfer the ECG signals via Bluetooth using Bluetooth chip DA14580 to a PC.
My first approach is i try using the Codeless to connect the DA14580 to my PC. I think i successfully connect them because when i type AT into the command prompt. It replies ok. / ATI, it retuns the version
but when i do other function such as ATI +PRINT / AT +RANDOM it returns ERROR
Hi Lee Km,
Regarding the codeless and the connection on your PC, codeless is a demo where the user can connect two 580's and interact with those devices via the UART, just to be clear on that the connection is between the two 580's and not between the 580 and the PC, what you see on the terminal are data that are transfered via BLE and pushed to the UART of the 580 that is connected to your PC. Since you would like to connect an external sensor you will have to consider how this sensor will be connected to the 580 (via the ADC or I2C which are the interfaces that the codeless supports).
Regarding the errors that you get when using the codeless, running the AT+RANDOM command should return a random number, verified this with with a pro dk, i see that you have placed a space between the AT and the +RANDOM, please try to issue the command as one AT+RANDOM and it should be ok. Regarding the ATI+PRINT is used, in order to print something in your local UART you will have to issue the AT+PRINT command followed by the data that the device should print, for example AT+PRINT=data. Please check the Codeless Beta_1 AT Command Quick Start Guide for more info regarding the commands supported from the codeless.
Thanks MT_dialog
Hi MT_dialog,
Thank you for your help i am now able to run the commands after removing the space. My mistake.
Owh my mistake again so the DA14580 is connected to my PC thru UART.
So back to my original question, is it possible to direct connect a 14580 chip via Bluetooth to PC? " 14580 <-Bluetooth-> PC "
or do I need another unit of DA14580, to make connection "14580 <-Bluetooth-> 14580 <-UART-> PC"
Thanks so much
Lee Km
Hi MT_dialog,
Just to let you know i am able to connect 14580 (as peripheral) to my PC as central via Bluetooth. Using the codeless.
Thanks so much
Lee Km
Hi Lee Km,
我不确定,祝福的运作over profiles, so using one 580 yes you will be able to connect to another BLE central device but that central will need to support the profile that the codeless implements, so you will need an application on your PC that operates over BLE and executes the appropriate discovery and functionallity that a 580 codeless central does in order to exchange data.
Thanks MT_dialog