CarTracker – GPS Car locator

F3GCWWGI8765XR5.MEDIUMDo you often forget where you have parked your car? With the help of this project you are able to locate your car with the push of a button. It’s using a GPS module to find the location and an LCD screen to display the distance and direction of your car.

When you park your car, you press the button, car tracker calculates the car location GPS coordinates and stores them in EEPROM so the car tracker can be turned off. When you’re leaving a store looking for your car, the car tracker reads the new GPS and displays how far from your car you are and points in the direction of your car.

CarTracker – GPS Car locator – [Link]

Neat E-ink HAT for RPi

PiDisplay

by elektor.com:

Startup Percheron Electronics Ltd is looking to fund their rather neat E-Paper display HAT for the Raspberry Pi. Unlike some similar display solutions for the Pi this E-ink HAT attaches without any long ribbon cables. An advantage of this type of display (similar to those used on the Kindle) is that the image persists on the screen when power is removed so they use less power than a TFT display but the E-Paper technology does not support fast moving images.

The PCB is compliant with the Raspberry Pi Foundation’s HAT specification, including device tree configuration of the required GPIO pins by the HAT EEPROM. The board is able to drive a 2.7″ 264 x 176 pixel E-Paper display panel and is also suitable for the 1.44″ and 2″ display panels from the same manufacturer.

The board also features a DS3231 real time clock (RTC) IC with a CR1220 lithium coin cell for battery backup when the Pi is powered down. The DS3231 is accurate to 5 parts per million, or within 3 minutes per year. The RTC can generate an interrupt/alarm signal and also a 32 KHz clock signal which can be connected through to GPIO pins by solder pad links, if required.

Neat E-ink HAT for RPi – [Link]

ESP8266 WIFI Web Power Switch for MAINS

 

9 - ESP8266 - WIFI MPSW- Asembly - full - 9

by esp8266-projects.com:

Theory of operation remain the same so please take a look at the previous Article about MAINS Power Switch for deeper explanations.

I don’t know if this it’s the smallest MAINS Power Switch with integrated WIFI and direct Web interface access but if is not, it’s definitely closer to be at only around 25x50mm :)

ESP8266 WIFI Web Power Switch for MAINS – [Link]

BoardMerge Python tool merges Eagle PDFs files

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Rohit Gupta has written a Python command line tool to merge several PDFs generated by Eagle into one for easier printing when using toner transfer method. He calls is BoardMerge and you can download it from Rohit’s website. [via]

BoardMerge Python tool merges Eagle PDFs files – [Link]

RELATED POSTS

Piccolino: Arduino Compatible + WIFI + OLED + SRAM + SD CARD

piccolino

World’s first compact Arduino with integrated OLED+WIFI+SD CARD+32K SRAM for your 21st century projects! Play, create, embed, invent.

Piccolino (Italian for “tiny”) is a small, low-cost yet powerful programmable controller with an embedded OLED display and WIFI connectivity that you can program using existing tools like the Arduino IDE environment and the ESPlorer IDE. It uses the new ESP8266 LUA powered WIFI module which takes care of all the WIFI connectivity workload requiring only 3 lines of code in your sketches to establish a wireless connection. Furthermore, it can be configured both as an Access Point or a Station, so you can easily develop mobile device controlled appliances.

Piccolino: Arduino Compatible + WIFI + OLED + SRAM + SD CARD – [Link]

IQRF module TR72D communicates at up to 600m distance

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Higher RF power, GMSK modulation and extra low power consumption make a new communication module interesting even for rough conditions.

At cars, chip-tuning usually results in a higher power of a motor. Even the new communication module (transceiver) TR72D from IQRF has passed such „chip-tuning“ of RF portion, resulting in a higher max. RF output (up to 12mW). New RF chip – Spirit1, used at TR72D also provides excellent sensitivity and GMSK modulation (Gaussian Minimum Shift Keying) with high resistance to interference. That´s why the new module is able to transfer data at much higher distance than previous types (up to 600m on a free space). This improvement has one limitation – the new module is usable with applications originally developed for previous types, but it´s not usable in one RF network simultaneously with older types (because of a different modulation).Basically the new module TR72D offers the same straightforward development of devices with a wireless communication as previous modules. The best idea about differences among particular types will give you the attached table. TR72D is a hot novelty from which we have first engineering samples. Version „DAx“ also contains built-in antenna.

Features of IQRF technology, description of the development environment and other features can be found in a record of our webinar Wireless MESH networks without programming.

Detailed information will provide you the Wago 2059-2060-2061 brochure.

IQRF module TR72D communicates at up to 600m distance – [Link]

Nextion: a cost-effective high-performance TFT HMI

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Objective-oriented display solution, to reduce the GUI development difficulty and shorten the cycle.

Nextion is a Seamless Human Machine Interface (HMI) solution that provides a control and visualisation interface between a human and a process, machine, application or appliance. Nextion is mainly applied to IoT or consumer electronics field. It is the best solution to replace the traditional LCD and LED Nixie tube.

This solution includes hardware part – a series of TFT boards and software part – Nextion editor. Nextion TFT board uses only one serial port to do communicating. Let you get rid of the wiring trouble. We notice that most engineers spend much time in application development but get unpleasant results. In this situation, Nextion editor has mass components such as button, text, progress bar, slider, instrument panel etc. to enrich your interface design. And the drag-and-drop function ensures that you spend less time in programming, which will reduce your 99% development workloads. With the help of this WYSIWYG editor, GUI designing is a piece of cake.

Nextion: a cost-effective high-performance TFT HMI – [Link]

Hey, watch where you’re flicking. That’s a computer

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by Nancy Owano @ phys.org:

Michigan Micro Mote (M3) is the world’s smallest computer. How small? It’s about the size of a grain of rice. A University of Michigan’s March report can tell you that the team behind the computer have come up with a fully autonomous system that can act as a smart sensing system. “To be ‘complete,’ a computer system must have an input of data, the ability to process that data – meaning process and store it, make decisions about what to do next – and ultimately, the ability to output the data,” said David Blaauw, one of the faculty members who achieved the Michigan Micro Mote.

Hey, watch where you’re flicking. That’s a computer – [Link]

Flexible, fast-charging aluminum-ion battery offers safer alternative to lithium-ion

aluminum-ion-battery

by Darren Quick @ gizmag.com:

Researchers at Stanford University have created a fast-charging and long-lasting rechargeable battery that is inexpensive to produce, and which they claim could replace many of the lithium-ion and alkaline batteries powering our gadgets today. The prototype aluminum-ion battery is also safer, not bursting into flames as some of its lithium-ion brethren are wont to do.

The prototype battery features an anode made of aluminum, a cathode of graphite and an ionic liquid electrolyte, all packed within a flexible, polymer-coated pouch. And unlike lithium-ion batteries, which can short circuit and explode or catch fire when punctured, the aluminum-ion battery will actually continue working for a short while before not bursting into flames.

Flexible, fast-charging aluminum-ion battery offers safer alternative to lithium-ion – [Link]

15V to 60V Wide Input Four-Output SIMPLE SWITCHER

 

simple-switcher

This reference design from TI demonstrates the LM46002 SIMPLE SWITCHER® Synchronous Buck Converter and the LMZ21701 SIMPLE SWITCHER® Nano Module. The LM46002 provides a regulated 12V rail from an input of 15V to 60V. The 12V rail is then regulated down to 5V, 3.3V, and 1.8V rails using three LMZ21701 nano modules. Each rail can provide up to 1A of load current.  This modules’ wide input voltage capability and small solution size, ease of use, high efficiency and modular design was seen at APEC.

15V to 60V Wide Input Four-Output SIMPLE SWITCHER – [Link]