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

Wireless Weather Station Equipped with Voice Synthesis

Weather is considering as one of the most unpredictable natural phenomenon on the Earth. Go figure, with all the sudden tornadoes, cyclones, floods, bushfire, and even dust storm violating all across the world, it’s becoming harder and harder to predict the constantly changes of weather! However, there are many people out there have huge interested in the meteorology. If you’re one of the meteorology fans, then you have to hang out here, as we’re about to develop a Wireless Weather Station with Voice Synthesis. Well, the main objective of the project is to create a cheap and maintenance free weather station, which is allowing the paraglider pilots to tell them the current wind condition at their flying site. Unlike the ordinary weather station, this one had access to a PSTN line at the clubhouse by the landing field. The reason why the PSTN telephone line is being used, as it’s a whole lot cheaper than the mobile phone weather station. The device has two TX units. The first one is placed on the mountaintop, while the second unit is placed… Continue reading

The Cheap But Useful Ericsson Cell Phone Display GA628

You used to have an Ericsson Cell Phone GA628 and you also loved it very much, however after few years of using, you’ve decided to change a brand new cell phone and you just threw it inside the drawer and never touch or look on it after that? Well, instead of leaving it in the drawer, why don’t you reuse it and give it a nice little modification here? This project wouldn’t cost you too much, as it is a cheap and power saving simple display for battery powered, thanks to the help of Ericsson GA628 display. Since it’s a readily available and the I2C interface allows the connection to a very small microcontroller as well! The GA628 display will provide a 12 character alphanumeric display, where some of the icons in the second line and its power consumption of some 100uA. Thus, it can easily be connected to the hardware, by just soldering some wires on it! However, the disadvantage on this project is it needs a 3.3V power supply and something around 5.6V. Beside that, the code and… Continue reading