DIY Bike GPS

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This DIY bicycle GPS can convert any bike into smart bike by adding navigation support. This bike GPS connects to the user’s smartphone GPS via Bluetooth and receives the navigation data from a GPS application on the smartphone. The project uses an Arduino board and a Neopixel LED ring. The destination is set on the GPS application on the smartphone and the directions are shown on the LEDs. In this project, we will use a GPS application available on Android or IPhone, OsmAnd, a mapping application and navigation with access to free data OpenStreetMap. This application is available offline, that is to say

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Microchip Announces a new Graphical User Interface Composer Tool

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Microchip announces MPLAB Harmony Graphics Composer, a free development tool for engineers to easily develop and design professional graphical user interfaces. Microchip Technology Inc. (NASDAQ: MCHP), a leading provider of microcontroller, mixed-signal, analog and Flash-IP solutions, today announced the MPLAB® Harmony Graphics Composer (MHGC), a modern and flexible graphical user interface (GUI) composer tool. MHGC is a free development tool for developing GUIs for all PIC32 microcontrollers through Microchip’s Harmony Configurator and MPLAB X Integrated Development Environment (IDE). The software allows anyone to create branded content using the Harmony Graphics Library, in conjunction with their custom assets, to create GUIs

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Si4844 and Arduino make a full-featured AM/FM/SW radio

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Raymond Genovese from All About Circuits has shared his idea of making a full-featured AM/FM/SW radio using SiLab’s Si4844-A10 radio chip, which is the first analog-tuned digital-display digital CMOS AM/FM/SW radio receiver IC integrating the complete receiver function from antenna input to audio output. It works with Host MCU through I2C-compatible 2-wire control interface. The idea of a single chip radio is intriguing. The prospect is especially interesting to me because, frankly, I envy the analog skills I associate with building a radio receiver. When I browsed the circuit literature in the area, I came across the Silicon Labs collection. One of

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EasyEDA: A free cloud-based tool for schematic capture, PCB layout, and circuit simulation

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I have been using Eagle CAD for many years now and it’s still my favorite tool for circuit layout and PCB designing. Eagle has been around for more than two-and-a-half decade, and during this time it has built an impressive set of component library, which is a huge time saver for PCB designers. Today, we live in a golden age of cloud-computing and the tools available to us now are more versatile than ever. A few weeks ago, I had an opportunity to try a new electronics design automation (EDA) tool called EasyEDA. It is a free web-based tool for

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Development board for PIC16F1938

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The PIC16F1938 is a versatile 28-pin MCU belonging to Microchip’s extreme low power microcontroller family featuring nanoWatt XLP technology, 28KB of programming memory, 1KB of RAM, 11 ADC channels, and tons of other peripherals. A while ago, I designed a development board for this MCU and I thought it would be worth sharing this design here. The development board features an onboard USB-UART bridge to support the ds30 Loader for easy programming of the PIC MCU. All I/O pins are accessible through 2×5 headers. Summary of Features: On-board 5V and 3.3V regulators Support both 5V and 3.3V MCUs. The power

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