BLE valueLength() on a peripheral is always returning 64

[foxed-in]

With long writes from a device to the 101: I noticed that valueLength is always returning 64. It is necessary to get the correct length of data to keep from reading garbage at the end. I haven't seen any crashing though. I will attach the peripheral sketch used. I was using nRF connect to send text "0123456789". Ellisys shows "0123456789" in the traces.

This is the output from the serial terminal of the peripheral sketch that is reading the 10 characters sent from the phone. value length: 64

value: 0123456789K?õßm÷çõðë·–PñßÿüÿŸˆhÓ

[foxed-in]

include

include "CurieTimerOne.h"

ifndef INTERVAL_TIMER

define INTERVAL_TIMER 1000

endif

static bool intervalFireOff = false;

BLEService CloudPrimaryService("bfe433cf-6b5e-4368-abab-b0a59666a402"); BLECharacteristic CloudCredentials("bfe433cf-6b5e-4368-abab-b0a59666a403", BLERead | BLEWrite, 64); BLECharacteristic CloudNotify("bfe433cf-6b5e-4368-abab-b0a59666a404", BLERead | BLEWrite | BLENotify, 64);

void characteristicSubscribed(BLECentral& central, BLECharacteristic& characteristic) { // characteristic subscribed event handler //Serial.println(F("Characteristic event, subscribed")); }

void characteristicUnsubscribed(BLECentral& central, BLECharacteristic& characteristic) { // characteristic unsubscribed event handler //Serial.println(F("Characteristic event, unsubscribed")); }

void intervalTimerIsr() { intervalFireOff = true;

}

void setup() { Serial.begin(115200);

Serial.println("REBOOT");

BLE.begin(); BLE.setLocalName("Test101"); BLE.setAdvertisedServiceUuid(CloudPrimaryService.uuid()); BLE.setDeviceName("Atmosphere Test"); // add service and characteristics

CloudPrimaryService.addCharacteristic(CloudCredentials); CloudPrimaryService.addCharacteristic(CloudNotify);

BLE.addService(CloudPrimaryService);

CurieTimerOne.start(1000 * INTERVAL_TIMER, &intervalTimerIsr); BLE.advertise(); }

void doIntervalCheck() { if(intervalFireOff) { intervalFireOff = false; Serial.println("I'm alive!"); } }

void loop() { doIntervalCheck();

// poll peripheral BLEDevice central = BLE.central();

if(central) { if(central.connected()) { BLE.stopAdvertise(); while(central.connected()) { doIntervalCheck(); if (CloudNotify.written()) { const unsigned char cvalue = CloudNotify.value(); Serial.print("value length: "); Serial.println(CloudNotify.valueLength()); Serial.print("value: "); Serial.println((char )cvalue); // Serial.print("Value: "); // Serial.println(cvalue); }
delay(5000); } BLE.advertise(); } } }