eBike Monitor

eBike monitor The eBike monitor concept is to provide a HUD for the energy information for eBikes. The unit consits of a small colour LCD screen that can be mounted on the handlebars or whereever you wish, and a monitoring pcb that is installed inside of the battery pack. Concept The system works by having the battery monitoring and statistics calculations performed on a small pcb that is mounted inside of the battery pack....

January 6, 2016 · 2 min · Ben V. Brown

HP Smart Array Battery Kit Repair

The HP P4XX The HP P4XX series of RAID controllers are HP’s first PCIe SAS/SATA Raid controllers, and personally I have found them to work excellently for use in my servers (G5/G6 servers). The cards are upgradable to use a 512MB cache and also have a backup battery for the cache (to prevent data loss in power outage). This battery backup unit is my only issue with these raid controllers…...

January 6, 2016 · 3 min · Ben V. Brown

SPI Flash IC Notes

SPI Flash ics SPI Flash chips are a fantastic way to store a medium amount of information for a microcontroller when you dont wish to impliment a whole filesystem layer. This is great for when you do not wish to use a large ram footprint (no large buffer needed!). They can provide relatively high density storage for a low cost, and enable high speed data storage. This page will be updated in future, as my code progresses....

January 6, 2016 · 3 min · Ben V. Brown