App note: Automobile harness protection

Polyswitch fuse use in automobile, app note from Littelfuse. Link here (PDF) A vehicle’s ideal harness scheme has a hierarchal, tree-like structure with main power “trunks” dividing into smaller “branches,” with overcurrent protection at each node. This architecture allows the use of smaller, space-saving wires that can reduce weight and cost. It also optimizes system […]

mavroOBD, an open source Arduino compatible OBD/Can-Bus module

Mavromatics’ open source project designed to “hack” your vehicle, that is available on github: The goal of this project it to create an Arduino based OBD port module that can be used to enhance a vehicles capabilites. For example, if you want door locks to close when moving faster than 5mph or to invoke/emulate certain […]

App note: Enable automotive USB power – Managing the increasing currents, longer cables, and tight portable-device specifications

Here’s an application note from Maxim:  Enable automotive USB power – Managing the increasing currents, longer cables, and tight portable-device specifications This application note discusses the challenges of rapid USB charging of today’s portable devices (PDs) in an automobile. The PDs may not charge quickly or charge at all, especially the more recent power-hungry devices. […]