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

Reflow oven controller got even better

If you are looking for professionally made surface mount PCBs, there is no doubt they are soldered in reflow oven. SMT components are too sensitive and small to be soldered by hand. This is why they are baked in ovens with controlled temperature profile. If you are going to build such oven, there is no problem with – you can get away dirty cheap. All you need is regular oven new or used and temperature controller. There is no big difference what type of oven you are going to use, the most important thing is that there were electric heating element. More important part is the controller. You can find many reflow oven controllers that can be successfully used. You can always build one, but why waste time on building tools if there are many options already available. We suggest to take a look at time proven projects like ControlLeo2. This is a second version of successful project which was also in Kickstarter. ControlLeo is really simple device with powerful features like four controllable outputs for heaters and fans, algorithm… Continue reading

USB generic HID library for Atmel AVR microcontrollers

Many times microcontroller projects need some sort of connectivity with PC. Usually this is done by using USB to USART converter. This is OK in most of cases. But if microcontroller has built in USB peripheral then using any other dedicated USB IC is simply waste of money and board space. AVR microcontroller family have AVR microcontroller line with native USB support like Atmega32U4. Programming these would be quite tough task while it would take significant time to study USB specifics, then write software and also do same on PC side. This is why lots of embedders keen to get away with USB to USART converters. Waitingforfriday have made this task much simpler by providing a software framework (C#) where PC deals with USB Generic HID drivers that are already included in to most operating systems. And AVR part relies on open source USB stack LUFA. Having this software template with working examples you can start building your projects around without digging too deep in to USB technical details. They also have designed breadboard friendly development board with Atmega32U4 for… Continue reading