Update : Its impossible to have flash on Moto E as it doesnt support USB OTG, the hack was tried on Moto G before Moto E was available assuming it has OTG like Moto G. This post is just for reference.
With a pricing of just Rs.6999 Moto E beats them all. Okay Moto E is out, with just one major limitation. It doesn’t have an LED flash. So here’s an idea to have flash on Moto E with just 10 Indian bucks if you have a USB OTG connector. Just solder an LED with a series resistor to USB connector. See the result on a Moto G …Same applies to Moto E.
All you need is an LED, resistor and USB OTG cable.
Here’s the flash powered by Moto USB port.
The same technique can be used on any Android Phone or tab without flash. Practically we use the LED intended for camera flash more as a flash light in the dark. And yes if you have the USB OTG cable and led fixed you have it. Limitation is that we are taking the power for the LED from the battery directly through the USB connector using hardware. Battery can be drained fast based on the current drawn by the LED.
More than marketing ploy and to have product segmentation, companies get rid of the LED flash. I guess its not the cost.
I have a HP dv6395 laptop (should be applicable to the whole HP dv6000 series) and it comes with a remote. Once in a while it just stops working. The ultimate problem solving technique of resatrting windows doesn’t solve this problem. Usually whenever there’s a problem with any IR remote, I use the digital camera technique to ensure that the IR light actually comes from the remote. In this case the RC was actually woking and I couldn’t find anything else wrong. The related services were working, but none of the functions were actually executed by the OS. Powering off and removing the power supply too didn’t work.
Finally I had this logical intuition, where I thought that since the remote can power on the laptop even if its powered off, unless I remove the battery the IR sesning circuit will not be reset. That worked, removing the battery and then inserting it back restored the IR functionality.
I was just thinking of starting a course for Computer Science and Electronics Engineers who have just passed out of College.
The topics that I thought of covering can be split into the following sections, covering what I call the basics.
Basic Networking / Internet
- Protocols (TCP/IP, NWLink, NetBios )
- Application protocols, ports, configuring POP,SMTP,IMAP,NNTP,FTP,
- Routers,ADSL, dynamic DNS,WIFI
- Trouble shooting tips, techniques
- Search Techniques, Newsgroups search, Torrents
- Web hosting, blogging, CMS, Adsense, search engine optimization, tools,tips and techniques
- VPN, Open VPN
PC Trouble Shooting Assembling
- BIOS – what can be done, basic and advanced techniques.
- ISA,PCI, PCI Express, AGP and newer bus topology
- Various Boot CDs, booting from Flash disk, CDROM
- Drive imaging techniques, software, nLIte, VLite
- Mobile – GSM,CDMA,EDGE,GPRS,Evdo, SMS – PDU/Text formats
- Land line – ISDN- BRI,PRI, PSTN,PABX,SMDR
- IP Telephony
- Various OSes, basic command, shortcut keys etc., Separating DATA from OS, Data Recovery
- OS differences, versioning
- Freeware useful Utilities, registry hacks
- Programing – Source Control, UI design, Registry, Dotnet, Network programming tricks, techniques, tools(packet sniffers).
- Virtual Machine Software -VMWare (Snapshots,Serial Ports on VMs) Virtual PC, Live CDS
- Sysinternals tools
- Basic electronic circuits
- Batteries, chargers
- Microcontrollers – PIC
- Simulators, Emulators
- Serial Port, USB, Bluetooth
- PCB design with Eagle
Will add more as and when required or when I get new ideas. If you are in or around Calicut and needs training on the above topics, please contact me using the contact form of this site.