Tag Archives: wireless

A Solar-Powered Headset From Recycled Parts

via hardware – Hackaday

Solar power has surged ahead in recent years, and access for the individual has grown accordingly. Not waiting around for a commercial alternative, Instructables user [taifur] has gone ahead and built himself a solar-powered Bluetooth headset.

Made almost completely of recycled components — reducing e-waste helps us all — only the 1 W flexible solar panel, voltage regulator, and the RN-52 Bluetooth module were purchased for this project. The base of the headset has been converted from [taifur]’s old wired one, meanwhile a salvaged boost converter, and charge controller — for a lithium-ion battery — form the power circuit. An Apple button makes an appearance alongside a control panel for a portable DVD player (of all things), and an MP4 player’s battery. Some careful recovery and reconfiguration work done, reassembly with a little assistance from the handyman’s secret weapon — duct tape — and gobs of hot glue bore a wireless fruit ready to receive the sun’s bounty.

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Taking the initiative to go green using solar power– taken literally — could also result in getting into hydroponic gardening.


Filed under: hardware, how-to, portable audio hacks, solar hacks

EasyESP-1: a rapid prototyping and development board for ESP8266

via Dangerous Prototypes

pics-EasyESP_Features-600

Raj over at Embedded Lab has designed a development board for ESP8266:

EasyESP-1 is a rapid prototyping board for the low-cost, WiFi-enabled ESP8266 microcontroller. With an onboard USB-to-Serial converter pre-installed, EasyESP-1 does not require any additional hardware to download your application firmware to the ESP8266 chip. The ESP module used in this development board is ESP-12E. All the I/O pins are broken out to 0.1” female headers for easy access, as well as to standard Grove connectors for connecting Grove sensors and other compatible modules. The 180-point breadboard further facilitates experimenting and testing of external circuits.

List of features

  • Easy access to all GPIO pin through female headers and Grove connectors
  • On-board USB-UART chip for easy programming and debugging
  • 180-point breadboard for experimenting with test circuits
  • On-board 3.3V (800 mA) regulated power supply
  • Two tact switches for user inputs, and one output LED
  • Slide switch to enable/disable auto Wake Up feature during Sleep mode

Full details at Embedded Lab blog. It’s also up on Tindie.

DIY IKEA wireless Qi charging for the Hexiwear

via Dangerous Prototypes

wireless-qi-charging-the-hexiwear

Erich Styger built a DIY a wireless charging system for the Hexiwear:

The Achilles Heel of the Mikroelektronika Hexiwear is its charging: the charging and USB connector are only designed for a limited number of plug-unplug cycles, and it does not have a wireless charging capability like the Apple iWatch. Until now! I have built a DIY wireless charging system for the Hexiwear🙂

More details at MCU on Eclipse homepage.

Homebrew WiFi shield

via Dangerous Prototypes

pics-Banner-600

m0xpd has published a new build, the homebrew WiFi shield:

Having just finished development of the new m0xpd / Kanga ESP8266 – AD9834 board, I find myself with a few WiFi components knocking about on the bench – so I figured it would be fun to try to make a WiFi shield for an Arduino…
Using an ESP8266 (in a module, such as an ESP-12) as a WiFi shield for an Arduino is a little like using the proverbial ‘steam hammer to crack a nut’ – but these modules are frighteningly cheap and I do want a WiFi shield (which are surprisingly expensive).
I have a spare ESP-12 module on a nice breakout board with 0.1 inch pitch headers, just crying out to be used once again (it having done service in the early stages of the development of the connected beacon etc)

More info at m0xpd’s blog.

Homebrew WiFi shield

via Dangerous Prototypes

pics-Banner-600

m0xpd has published a new build, the homebrew WiFi shield:

Having just finished development of the new m0xpd / Kanga ESP8266 – AD9834 board, I find myself with a few WiFi components knocking about on the bench – so I figured it would be fun to try to make a WiFi shield for an Arduino…
Using an ESP8266 (in a module, such as an ESP-12) as a WiFi shield for an Arduino is a little like using the proverbial ‘steam hammer to crack a nut’ – but these modules are frighteningly cheap and I do want a WiFi shield (which are surprisingly expensive).
I have a spare ESP-12 module on a nice breakout board with 0.1 inch pitch headers, just crying out to be used once again (it having done service in the early stages of the development of the connected beacon etc)

More info at m0xpd’s blog.