How Receive ble_uartservice using pc serial console, but can't loopback ADXL345 data using nRF51 UART.needed help

RE: How Receive ble_uartservice using pc serial console, but can't loopback ADXL345 data using nRF51 UART.needed help

mantap — Thu, 07 Dec 2017 01:58:10 GMT

so what suppose I'm going to do fix it.. anyone? this is my new question post

RE: How Receive ble_uartservice using pc serial console, but can't loopback ADXL345 data using nRF51 UART.needed help

mantap — Mon, 04 Dec 2017 14:14:04 GMT

yeah.. it's correct. but BLE send out not number but character.. how to make it goes to number.. I think const uint8_t make it like symbol. Now I want to make it number that can measure that sensor..

RE: How Receive ble_uartservice using pc serial console, but can't loopback ADXL345 data using nRF51 UART.needed help

Sigurd — Mon, 04 Dec 2017 11:41:30 GMT

Try something like this:

 ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), (const uint8_t*)readings, sizeof(readings),false);

RE: How Receive ble_uartservice using pc serial console, but can't loopback ADXL345 data using nRF51 UART.needed help

mantap — Mon, 04 Dec 2017 10:55:44 GMT

but this make program going to be error like this said.. "No instance of overload function "BLE::updatecharacteristicvalue...

RE: How Receive ble_uartservice using pc serial console, but can't loopback ADXL345 data using nRF51 UART.needed help

Sigurd — Sun, 03 Dec 2017 18:12:51 GMT

Hi,

Could you explain some more what the problem is ? What do you mean by "using serial pc console not synchronize with ADXL345 i2c using nRF51" ?

It looks like you are getting data from ADXL345 printed on the terminal. You want to send this data to the phone over BLE ? is that the problem?

If you want to send data over BLE with this mbed code, then you can use the ble.updateCharacteristicValue() function. I have not tested this, buy maybe you can do something like this:

 ble.waitForEvent();
 wait(0.1); 
 accelerometer.getOutput(readings);
 pc.printf("%i, %i, %i\n", (int16_t)readings[0], (int16_t)readings[1], (int16_t)readings[2]);
 ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), (int16_t)readings[0], 1);
 ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), (int16_t)readings[1], 1);
 ble.updateCharacteristicValue(uartServicePtr->getRXCharacteristicHandle(), (int16_t)readings[2], 1);