Turn-key PCB assembly services in prototype quantities or low-volume to mid-volume production runs

GertDuino – made for Raspberry Pi

Arduino and Raspberry Pi are long time used in many projects. Problem is that its a bit tricky to connect Arduino to Pi in convenient way. You need to make cable adapter or so. This is why one of the first Raspberry Pi volunteers Gert van Lo (this is where GertDuino name came from) decided to build a dedicated Arduino that would connect to Raspberry Pi conveniently and have even more features as well. GertDuino comes with Two microcontrollers. Standard Atmega328 that handles Arduino functionality. Another is Atmega48 which brings more additional I/Os, handles battery backed RTC and IRDA interface. The board also comes with RS232 level converter and it can be used by any of microcontrollers including Raspberry Pi itself. Additionally there are two buttons and 6 LEDs. More information at element14. Continue reading

Atmega1284P Bigboard

Then name might not sound imaginative at all, but it’s a well featured ARDUINO compatible board, only the hardware, and is based on the ATMEGA1284P by ATMEL Corporation. It’s a small footprint PCB (49.5 x 37mm) and can be programmed to collect and post data to an internet logging site such as thingspeak.com or Xively. The use of a Wiz820 Ethernet module allows the Ethernet to be powered-down when not in use, only becoming active when data is to be sent in for logging. Extra hardware on the board makes it particularly useful for a compact stand-alone logger and data gatherer. It even features a flexible power option of both 5V and 3.3V, as things like SD card, Ethernet works on 3.3 V. The Wiznet module has the RST (reset) and PD (power-down) pins connected so low power Ethernet is available by wake-up-and-do-something type programming, and the Ethernet interface can be fully reset without resetting the board. Programming can be by the standard AVR 6-pin programming header, or if an Arduino bootloader is installed, by using a FTDI-basic serial programmer. Continue reading

DIY remote control for your models

Every modeler knows that good remote control cost a decent amount of money. Cheap ones may not have enough channels or other features. So the only way is to build your own that would suit your needs. Jad Berro has developed a pretty simple but effective 17 channel remote controller that is more than enough to control simple robotic platforms and seems to be suitable for RC airplane control. It consists of self made Arduino board, two Playstation joysticks and several buttons. Commands are encoded and sent via 434MHz wireless transmitter module. Remote controller has also a LCD screen where some user information can be seen. As this remote controller is Arduino based, it makes it attractive to expand it with custom programming. Continue reading