Arduino SD card shield that includes an external 5v-3v3 level shifter. The problem. Assume that you need to log some of your readings from the input pins of your Arduino Uno (or MEGA, etc.) dev board ...

The shield can be configured to send GPS and sensor data from devices attached to an I2C bus to remote servers, or a really cool COSM server. [Phang] is selling his TraLog for $150, a fairly good ...

Then you find out that it has one quirk: it doesn't work when directly connected to an Arduino Uno. The reason is that SD cards operate around 3v3, but Arduino Uno GPIO pins are excited to 5v. However ...

SD cards can be accessed with two modes. The first is the SDIO mode, which is what cameras, laptops, and other card readers use. The second mode is SPI mode. SPI is slower, but much, much simpler.

A maker developer has squeezed an Arduino onto an SD card. He was inspired by Intel’s Edison compute module and he tried to go one better. The result is the SDuino, an ATMega328P processor-based ...

The Arduino graphics card shield is now available to back with pledges starting from just $29 for early bird backers. Jump over to the Kickstarter website via the link below to make a pledge and ...