This is a update post in the design of VALTRACK-V2 GPS tracker. The PCB i had sent for fabrication have arrived from PCB power and they are beautiful. I had ordered the boards in panel form, because PCB power doesn't support boards of size lesser than 20mm. Since VALTRACK-V2 design came to be around 52mm x 18mm, I had to accept their offer of making the PCB in the form of a panel instead of separate boards.

In this article i am explaining the differences between different Ceramic capactior dielectric materials like X7R, X5R, X8R, Z5U,Y5V, X7S, C0G. I used to encounter these names X7R and X5R capacitors regularly but never bothered to look at what they are. Recently i took some time to study them realised how important they are and here are the details of what i learnt.

In this article i am explaining the 4 points to keep in mind when you are replacing batteries. When we are trying to replace a non functioning or damaged battery, we need to consider the following points mentioned below so that we select the right battery. 

This article gives a brief description of the difference between SIM908 and SIM808 GSM/GPS modules. SIM808 modules are upgraded version of its previously successful GSM/GPS/GPRS combo module SIM908. SIM908 is based on older SIM900 series where as SIM808 is based on the new SIM800 series. The main differences between SIM908 and SIM808 are that the SIM808 has additional features like Bluetooth, FM, SSL, Audio recording and support for GNSS in a smaller size of 24mm x 24mm whereas SIM908 is GPS only device in a bigger package of 30mm x 30mm. 

About the Author

is the author of this blog and is an Embedded systems design engineer by profession & Founder @ Valetron Systems Pvt Ltd

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