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I downloaded an Android Bitcoin Wallet Where do I Find My Private Key?
30 days ago • bitcoinsquestions
With my PC wallet I got a 12 word seed mnemonic that I was able to write down. With the android wallet they do not let me get a private key at all. They allow me to back up on the wallet or externally but I don't see any private key or 12 word seed mnemonic in the file. What if I lose my phone or its damaged? Please help.
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Fetching Blockchain transactions and its fee in real time
7 months ago • SRashid
we need all bitcoin transactions in real time (unconfirmed transactions) and there fee to miner
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How can I implement SignalR in .NET Core application
9 months ago • lampego1@qrid
I found couple solutions. But all this solutions don't work.
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How can I change mouse speed in Ubuntu?
9 months ago • lampego1@qrid
I set the mouse speed to the minimum value here: But mouse speed is still very fast
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List of Open Sourced Hardware Security projects - HSM, Crypto Tokens, etc
11 months ago • alex@qrid
Let's create a list of interesting Open Source Hardware Security projects like HSMs etc
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SW4STM32 - Eclipse error - Java was started but returned exit code=13
12 months ago • alex@qrid
I am getting the following error right on the first attempt to launch AC6 blank" title="undefined" "undefined">System Workbench for STM32 (IDE for blank" title="undefined">STM32 MCUs based on Eclipse). Eclipse error: Java was started but returned exit code=13 C:\ProgramData\Oracle\Java\javapath\javaw.exe -Dosgi.requiredJavaVersion=1.7 -Xms256m -Xmx1024m -jar C:\Ac6\SW\\plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar ...
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How to filter fake news?
13 months ago • amityp
How does one filter fake news while not hampering information dissemination using alternative media? Reputable media outfits are not without their biases. The internet was able to provide an avenue for information to flow unrestricted, yet with such freedom came the proliferation of "fake news" sites. It wouldn't be an issue if people were more discerning of the information they believe in, but such is not the case. If people are then ill-equip ...
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What MCU and dev boards are available to develop IoT devices connected to SigFox network
2 years ago • alex@qrid
What microcontrollers and development boards are available to connect IoT device to SigFox network? Thanks!
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Low power long range IoT networks - LoRa vs SigFox vs Sub Gigahertz vs BlueTooth Mesh
2 years ago • alex@qrid
What is the most promising low power and long range IoT network technology? Is it LoRa or SigFox or Sub Gigahertz or BlueTooth Mesh or something else?
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Raspberry PI 3. How can I control a fan to cool the CPU?
2 years ago • lampego1@qrid
Scope: Raspberry PI 3 Cooler(max 5V, 0.3A) The cooler worked very noisy when I connected it to the 5V pin.
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How to SSH into Raspberry Pi over UART serail console cable?
2 years ago • alex@qrid
Let's say I do not want (or cannot) use WiFi or Ethernet. However, I am connected to my RPi3 over UART serail cable. Is there any way to establish an SSH connection (or any other TCP/IP based connection) to Raspberry Pi from Windows 7 PC? Thanks!
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Accessing UART serial console on Google Nexus 5 phone
2 years ago • alex@qrid
How to access UART serial console on Google Nexus phones, specifically Nexus 5 aka "bullhead"? Thank You!
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Is QSEE (Qualcomm's TEE) compliant with GlobalPlatform TEE specifications / API's?
2 years ago • alex@qrid
blank" title="undefined">QSEE is widely deployed on most of Samsungs and other phones that are based on Qualcomm's CPU (Snapdragon, etc). My question is does QSEE implement blank" title="undefined" "undefined">GlobalPlatform TEE API's. In other words, is QSEE compliant with GlobalPlatform TEE specs? Thanks!
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What is a pitch size in a 96boards low speed 40-pin connector?
2 years ago • alex@qrid
Trying to make a custom cable for my HiKey board Lemaker edition. I wonder what is the pitch size (i.e. distance between pins) on a 40-pin Low Speed Expansion Connector? Thanks!
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Difference between ISO 14443 and ISO 18092, i.e. RFID vs NFC
2 years ago • alex@qrid
What is the difference between NFC (ISO 18092) and Contactless Card / RFID (ISO 14443)?
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[SOLVED] - ORA-01821 while parsing datetime string with Fractional Seconds (FF3 format mask for milliseconds) - ORA-01821: date format not recognized
2 years ago • alex@qrid
Java application is passing date and time to Oracle SPR as a string parameter that contains fractional seconds points (milliseconds). According to Oracle documentation, FF format mask is supposed to work with fractional seconds, and specifically FF3 should work for parsing those milliseconds. However I am getting the following Oracle error ORA-01821: date format not recognized : -- this code does not work - it throws the following ORACLE error ...
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2
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Monitoring ALL Bitcoin Blockchain transactions in real time on a global scale
2 years ago • alex@qrid
We need to monitor / intercept / inspect all bitcoin transactions that are being sent to certain rather small but ever changing list of Bitcoin addresses. Basically, we just need to run a custom code in the event of any new transaction being sent through Bitcoin P2P Network. What would be a reasonable technical approach to accomplish that task? Thanks!
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How to increase Java HEAP SIZE? Getting java.lang.OutOfMemoryError: Java heap space
2 years ago • alex@qrid
How to increase Java HEAP SIZE? Getting this exception: java.lang.OutOfMemoryError: Java heap space at runtime when trying to execute this line of code: byte[] data = new byte[cols * rows * elemSize]; in the main thread (console application). Environment: Win32 (Windows XP SP3 32 bit, 4 Gb of physical RAM): java -version java version "1.7.0_25" Java(TM) SE Runtime Environment (build 1.7.0_25-b17) Java HotSpot(TM) Client VM (build 23. ...
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1
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Android API for APDU over USB - communicating with smartcard / secure element in a USB form factor from Android App
2 years ago • alex@qrid
How to communicate with smartcard / secure element physically connected to Android device over USB? Thanks!
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Android API to communicate with SmartCard reader over USB port
2 years ago • alex@qrid
How to programmatically access PC/SC compliant smartcard reader from Android App? The smartcard reader is physically connected to Android device through the USB port. Thanks!
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