I bought a Adafruit feather 32u4 with bluetooth with and additional SD card and I'm trying to receive a signal in my SD card then to transfer it by bluetooth on my Bluefruit LE connect app.
So I started by doing a datalog code that worked correctly because I am able to have get a Datalog.txt file in my SD card.
Moreover, my bluetooth code "plotter" works too for instant signal.
But my problem is when I'm trying to transfer my SD file by bluetooth to my application : it tells me "Couldn't factory reset".
I did DFU reset and it didn't work but it is like the SD and bluetooth are not able to work together... :'(
Here is my code for plotter :
Code: Select all
/*********************************************************************
Bluefruit LE Connect Plotter
for Feather Bluefruit -> Bluefruit LE Connect app
outputs dummy values for demo use with BLuefruit LE Connect app
change SEND_SECOND_PLOT define to 1 to output second plot using sine wave table
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
MIT license, check LICENSE for more information
All text above, and the splash screen below must be included in
any redistribution
*********************************************************************/
#include <stdio.h>
#include <string.h>
#include <SD.h>
#include <Arduino.h>
#include <SPI.h>
#if not defined (_VARIANT_ARDUINO_DUE_X_) && not defined (_VARIANT_ARDUINO_ZERO_)
#include <SoftwareSerial.h>
#endif
const int chipSelect = 10;
int compteur = 1;
int state;
int t = 1;
int p = 0;
int a = 0;
int b = 0;
int c = 0;
int k = 0;
#include "Adafruit_BLE.h"
#include "Adafruit_BluefruitLE_SPI.h"
#include "Adafruit_BluefruitLE_UART.h"
#include "BluefruitConfig.h"
#include "sine.h"
/*=========================================================================
APPLICATION SETTINGS
FACTORYRESET_ENABLE Perform a factory reset when running this sketch
Enabling this will put your Bluefruit LE module
in a 'known good' state and clear any config
data set in previous sketches or projects, so
running this at least once is a good idea.
When deploying your project, however, you will
want to disable factory reset by setting this
value to 0. If you are making changes to your
Bluefruit LE device via AT commands, and those
changes aren't persisting across resets, this
is the reason why. Factory reset will erase
the non-volatile memory where config data is
stored, setting it back to factory default
values.
Some sketches that require you to bond to a
central device (HID mouse, keyboard, etc.)
won't work at all with this feature enabled
since the factory reset will clear all of the
bonding data stored on the chip, meaning the
central device won't be able to reconnect.
MINIMUM_FIRMWARE_VERSION Minimum firmware version to have some new features
MODE_LED_BEHAVIOUR LED activity, valid options are
"DISABLE" or "MODE" or "BLEUART" or
"HWUART" or "SPI" or "MANUAL"
-----------------------------------------------------------------------*/
#define FACTORYRESET_ENABLE 1
#define MINIMUM_FIRMWARE_VERSION "0.6.6"
#define MODE_LED_BEHAVIOUR "MODE"
#define SEND_SECOND_PLOT 0
/*=========================================================================*/
// Create the bluefruit object, either software serial...uncomment these lines
//SoftwareSerial bluefruitSS = SoftwareSerial(BLUEFRUIT_SWUART_TXD_PIN, BLUEFRUIT_SWUART_RXD_PIN);
//Adafruit_BluefruitLE_UART ble(bluefruitSS, BLUEFRUIT_UART_MODE_PIN,
//BLUEFRUIT_UART_CTS_PIN, BLUEFRUIT_UART_RTS_PIN);
/* ...or hardware serial, which does not need the RTS/CTS pins. Uncomment this line */
//Adafruit_BluefruitLE_UART ble(BLUEFRUIT_HWSERIAL_NAME, BLUEFRUIT_UART_MODE_PIN);
/* ...hardware SPI, using SCK/MOSI/MISO hardware SPI pins and then user selected CS/IRQ/RST */
Adafruit_BluefruitLE_SPI ble(BLUEFRUIT_SPI_CS, BLUEFRUIT_SPI_IRQ, BLUEFRUIT_SPI_RST);
/* ...software SPI, using SCK/MOSI/MISO user-defined SPI pins and then user selected CS/IRQ/RST */
//Adafruit_BluefruitLE_SPI ble(BLUEFRUIT_SPI_SCK, BLUEFRUIT_SPI_MISO,
// BLUEFRUIT_SPI_MOSI, BLUEFRUIT_SPI_CS,
// BLUEFRUIT_SPI_IRQ, BLUEFRUIT_SPI_RST);
//SoftwareSerial bluefruitSS = SoftwareSerial(BLUEFRUIT_SWUART_TXD_PIN, BLUEFRUIT_SWUART_RXD_PIN);
// A small helper
void error(const __FlashStringHelper*err) {
Serial.println(err);
while (1);
}
/**************************************************************************/
/*!
@brief Sets up the HW an the BLE module (this function is called
automatically on startup)
*/
/**************************************************************************/
void setup(void)
{
// while (!Serial); // required for Flora & Micro
delay(500);
Serial.begin(115200);
pinMode(10, OUTPUT);
Serial.println(F("Adafruit Bluefruit Command <-> Data Mode Example"));
Serial.println(F("------------------------------------------------"));
/* Initialise the module */
Serial.print(F("Initialising the Bluefruit LE module: "));
if ( !ble.begin(VERBOSE_MODE) )
{
error(F("Couldn't find Bluefruit, make sure it's in CoMmanD mode & check wiring?"));
}
Serial.println( F("OK!") );
if ( FACTORYRESET_ENABLE )
{
/* Perform a factory reset to make sure everything is in a known state */
Serial.println(F("Performing a factory reset: "));
if ( ! ble.factoryReset() ) {
error(F("Couldn't factory reset"));
}
}
/* Disable command echo from Bluefruit */
ble.echo(false);
Serial.println("Requesting Bluefruit info:");
/* Print Bluefruit information */
ble.info();
Serial.println(F("Please use Adafruit Bluefruit LE app to connect in UART mode"));
Serial.println(F("Then Enter characters to send to Bluefruit"));
Serial.println();
ble.verbose(false); // debug info is a little annoying after this point!
/* Wait for connection */
while (! ble.isConnected()) {
delay(500);
}
Serial.println(F("******************************"));
// LED Activity command is only supported from 0.6.6
if ( ble.isVersionAtLeast(MINIMUM_FIRMWARE_VERSION) )
{
// Change Mode LED Activity
Serial.println(F("Change LED activity to " MODE_LED_BEHAVIOUR));
ble.sendCommandCheckOK("AT+HWModeLED=" MODE_LED_BEHAVIOUR);
}
// Set module to DATA mode
Serial.println( F("Switching to DATA mode!") );
ble.setMode(BLUEFRUIT_MODE_DATA);
Serial.println(F("******************************"));
Serial.print("Initializing SD card...");
// see if the card is present and can be initialized:
if (!SD.begin(chipSelect)) {
Serial.println("Card failed, or not present");
// don't do anything more:
while (1);
}
Serial.println("card initialized.");
File dataFile = SD.open("datalog.txt");
if (dataFile) {
while (dataFile.available()) {
Serial.write(dataFile.read());
ble.print(dataFile.read());
}
dataFile.close();
}
else {
Serial.println("error opening datalog.txt");
}
if (SEND_SECOND_PLOT) { //change SEND_SECOND_PLOT to 1 for add'l sine plot //stay within bounds of sine table
ble.print(","); //print delimiter for second plot
ble.print(sine_wave[sineIndex]); //print value from sine table
sineIndex++; //increment index
}
ble.println(); //print newline so app knows to plot the values
}
void loop(void) {
}