Chrome Apps and serial port communication
Software

Chrome Apps and serial port communication

Luca Dentella writes: During the development of my electronic projects, I sometimes need to develop a graphical user interface (GUI) that talks using serial communication with the devices I create. In the past, I usually chose to develop those interfaces in C# and using the .Net...

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DS1307 RTC Module
Timer

DS1307 RTC Module

The module based on DS1307, The DS1307 serial real-time clock (RTC) is a low-power, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM. Address and data are transferred serially through an I²C, bidirectional bus. The clock/calendar provides seconds, minutes,...

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0.8A step-up DC/DC converters in a tiny package
IC

0.8A step-up DC/DC converters in a tiny package

Torex Semiconductor's XC9141/XC9142 series of 0.8A step-up DC/DC converters come with an input–output disconnection function (load disconnection function) to prevent malfunctioning during standby, and for device functionality that enables power supply to RTC. When the output...

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Multi-Function SSD Shield for the Raspberry Pi 2
Raspberry Pi

Multi-Function SSD Shield for the Raspberry Pi 2

We came across this kickstarter campaign that features a multifunction SSD shield for Raspberry Pi 2. The shield includes SSD, WiFi, RTC w/Battery and high power USB: Pi 2 Design is excited to introduce the first offering in a new line of Embedded and Media-based I/O shields for the...

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Using a $2 DS3231 RTC & AT24C32 EEprom from eBay
IC

Using a $2 DS3231 RTC & AT24C32 EEprom from eBay

Edward Mallon @ edwardmallon.wordpress.com gives us a detailed explanation about cheap RTC modules found on ebay and other places. I built the first few beta units with the DS3231 Chronodot from Macetech (about $18 each), but I kept on stumbling across cheap RTC modules on eBay,...

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LCD clock with 4″ display
LCD/OLED

LCD clock with 4″ display

mcs.uwsuper.edu has build a big LCD clock based on MSP430 mcu and DS3231 RTC clock chip. They write: The clock is built on a 4" (101 mm) LCD displays OD-103 manufactured by Orient Display. The LCD provides high contrast of digits and easy reading from a large distance. The unit runs...

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PIC24 bedside table alarm clock
Mcu

PIC24 bedside table alarm clock

Markus Gritsch posted pictures and code of his PIC24 bedside table alarm clock: Another year, another clock, but for the first time for my alarm clocks. I am not using an MSP430 but a PIC24 instead. Standby current is with 5.5 µA only slightly higher than that of my MSP430 based...

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