blueart_datamode (UART) issues

[MichaelKonnerup]

Circuit Playground Arduino IDE: 1.8.5

I have some issues with the code. When I connect my Circuit Playground to the BLE module and upload the sketch through my Mac everything looks fine. I am using the bluart_datamode sketch. I can both send and receive uart data, but when I connect the Circuit Playground to an external power resource or replug the Circuit Playground to my computer, I dont receive uart data anymore. It possible to connect to the BLE through the app, but the data dont appear.

`/***** This is an example for our nRF51822 based Bluefruit LE modules

Pick one up today in the adafruit shop!

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

include

include "Adafruit_BLE.h"

include "Adafruit_BluefruitLE_SPI.h"

include "Adafruit_BluefruitLE_UART.h"

include "BluefruitConfig.h"

if SOFTWARE_SERIAL_AVAILABLE

include

endif

/*========================================================================= 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"

/=========================================================================/

// 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 / //xxcAdafruit_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);

// 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); 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("**")); }

/**/ /! @brief Constantly poll for new command or response data / /**/ void loop(void) { // Check for user input char n, inputs[BUFSIZE+1]; ble.print("test"); if (Serial.available()) { n = Serial.readBytes(inputs, BUFSIZE); inputs[n] = 0; // Send characters to Bluefruit Serial.print("Sending: "); Serial.println(inputs);

// Send input data to host via Bluefruit
ble.print(inputs);

}

// Echo received data while ( ble.available() ) { int c = ble.read();

Serial.print((char)c);

// Hex output too, helps w/debugging!
Serial.print(" [0x");
if (c <= 0xF) Serial.print(F("0"));
Serial.print(c, HEX);
Serial.print("] ");

} }`

[thymjan]

You have to comment out the following line in the main loop: while (!Serial)

This line stops the main loop till the device is connected to a serial monitor.

[marklochrie50265]

Facing this issue currently even after removing while(!Serial). Any ideas?