In 1969, Nippon Calculating Machine Corporation approached Intel to design 12 custom chips for its new Busicom 141-PF printing calculator. Intel engineers suggested a family of just four chips, including one that could be programmed for use in a variety of products, setting in motion an engineering feat that dramatically altered the course of electronics....Continue Reading
Some ADCs in the market allow you to read differential voltage. How is this different from single ended voltage? Single ended voltage is the potential difference between a node and ground. Differential voltage is the potential difference between two nodes. A use case of measuring differential voltage is to measure the current flowing in a...Continue Reading
I always run into a problem attaching a shared folder to my Ubuntu virtual box machine. This is what works for me. 1. Make sure you have the latest version of guest additions installed. 2. Add a shared folder using the virtual box menu and auto mount it 3. Turn on the virtual machine. Browse to...Continue Reading
These instructions are to use an SD card as extra storage on your beaglebone black. The beaglebone boots from internal memory and has micro SD card available for storage. I used a Ubuntu operating system (running inside Virtual Box) to format the SD card and create the uEnv.txt file that tells the BBB not to...Continue Reading
Host machine running Windows 7 VB machine running Ubuntu Task at hand: Increase disk space of VB machine1. Open up command prompt in host machine Navigate to C:\Program Files\Oracle\VirtualBox Type the following command: VBoxManage modifyhd “C:/PATH/VB_HARD_DISK.vdi” –resize SIZE_IN_MB (Ref: http://askubuntu.com/questions/88647/how-do-i-increase-the-hard-disk-size-of-the-virtual-machine) 2. New hard drive space will be unallocated and has to be merged into the original hard disk....Continue Reading
In Non-Engineering Speak The following post explains a communication protocol used to transfer data between two devices synchronously. Data is transferred serially, which means one bit at a time. Due to its special design, at a particular time, as a device is transmitting a particular bit, it also receives a bit from the other device....Continue Reading