USB to 3.3V – 5V serial TTL adapter

via Dangerous Prototypes

adapter

Dilshan Jayakody published a new build, USB to 3.3V – 5V serial TTL adapter:

This post is about experimental USB to 3.3V/5V serial TTL adapter which we build recently to work with both 5V and 3.3V MCUs. This project is mainly based on CH340G seral-USB chip. CH340G is cheap and commonly available serial-USB convert IC and now it’s commonly found on Chinese versions of Arduino development boards.
FTDI’s FT232 is another possible alternative for this kind of project, but we drop it because of its famous device driver base chip locking issues. Also compare with FT232, CH340G is cheap, commonly available and simple to construct with minimum number of components.
In this module we incorporate 5V/3.3V voltage selector switch to avoid interface matching issues due to different voltage levels of main-board/MCU and serial TTL adapter.

Project files available at elect.wikispaces.com.

Overflow Sale

via SparkFun Electronics Blog Posts

What is an Overflow Sale, you might ask? Well, it has nothing to do with the record amount of rain Boulder has had this past year, nor the possibility of our building’s groundwater containment area - lovingly/terrifyingly named “the hole” - having too much H2O in it. The Overflow Sale is our opportunity to clear some shelf space in preparation for some big product releases coming this fall. So please let our fiscal planning and spacial needs be your ticket to a sweet deal. The sale ends on 8/31/2015 at 11:59pm MT. Don’t miss out or you’ll be cursing your luck more than if you got stuck in the hole.

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* Non-artist’s representation of SparkFun’s Groundwater Containment Area

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ESP8266 MQTT battery monitor project

via Dangerous Prototypes

batterymon

Steve’s latest DirtyPCBs project, a wireless MQTT battery monitor:

This board uses an ESP8266 (ESP12), a Texas Instruments INA226 I2C voltage and current monitor, and a Texas Instruments LMR12010X buck converter. This board is designed to wirelessly monitor 12 volt batteries and power supplies using an external current shunt resistor. The voltage across the shunt resistor is measured differentially. The shunt resistor value and current rating is programmable in the firmware.

Via the contact form.

PIC32 Tic-Tac-Toe: Demonstration of using touch-screen, TFT and the Protothreads threading library

via Dangerous Prototypes

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Tahmid writes:

I had previously used the Adafruit TFT display using my library (ported from the Adafruit Arduino library). I decided to optimize the library to improve drawing speed. The same display I use comes with a 4-wire resistive touch-screen as well. I decided to write a simple library for the touch-screen and give Protothreads a try. To incorporate all this, I thought it would be cool if I used these to make a simple game. Tic-tac-toe came to mind as a fun little demo.

Project info at Tahmid’s blog.

Check out the video after the break.

David Cuartielles and Bruce Sterling at Sonar

via Arduino Blog

Photo: Sonar+D

Sónar+D is the international conference that brings together a combination of activities with a common theme: the relationship between creativity and technology and the digital transformation of the cultural industries involved.

During latest edition David Cuartielles gave a talk about the value of Open Source and a workshop with Alessandro Contini titled Making Noise with Arduino

David presented some examples like:

  • The Alcontrol Device (a breath analyser that detects high alcohol levels and limits mobile usage of a user depending on how drunk he/she is)
  • The involuntary dance machine that uses electrical stimulus to different muscles
  • A 5-day hack to a car that needed be driven remotely by musicians playing live
  • A large scale light installation for the Jakarta Marathon

He also got the opportunity to talk about robotics, kids learning code and electronics, and the future of Arduino. Later on Bruce Sterling, curator of Casa Jasmina,  was the protagonist of the festival’s closing keynote and talked about technology, music and the past/current state of the industry.

Photo: Sonar+D
News originally posted on Arduino Verkstad blog

Pimoroni is 3

via Raspberry Pi

For Pimoroni’s second birthday, we finally outgrew the old spring-storage workshop in Neepsend.

After hunting for a while, we found a new home near the train station in Sheffield. The new Pirate Ship is almost 8,000 sq ft of workshop and office that works pretty well for us, especially since it’s close to Street Food Chef and the Rutland Arms.

We’ve been here a year now and can say we’ve finally settled in. In fact we’ve almost filled the place, since we’ve continued growing at the same pace as the two previous years. This is pretty amazing, and means we’re now providing employment to more than 20 people.

new-warehouse

People! Having jobs! Because of your awesome support for Pimoroni! This amazes us :D

We now have Rick who runs the packing department. Matt and Kelly are the new shop team. Connor has joined Production to spend more time with laser cutters, and we of course have Phil “Gadgetoid” joining Jon and Paul in development.

connor-and-phil

We also had our first work experience peeps this summer, with Ben Dunicliffe and Amy Mather spending a week helping out the Pirates.

As well as expanding the Robot Lab and Lasertorium to make Flotilla (getting really close to being finished) and our awesome HATs, our shop has grown as Raspberry Pi and Making get more popular. The Raspi 2 launch was a really intense couple of weeks and everyone worked their heinie off to make sure people got their stuff as quickly as possible.

We’ve also managed to do some events again somehow, and appear at Maker Faires around the world, Deer Shed Festival, Picademy, and of course the occasional MegaJam, Cam Jam and Birthday Party.

york-jam

Our plan is to continue the trend and keep making awesome things, and growing to become as awesome in Europe as Adafruit and Sparkfun are in the USA! We still barely have time to breathe on the average Pimoroni day. We wouldn’t have it any other way.

We’ve saved up a few special things for our birthday to celebrate, and so, from today, as well as getting a whopping 15% off (with code PICADE), you can also order these shiny new things:

Picade

After finally delivering the Picade a year after the Kickstarter ended we were happy never to see another one for a while. We felt we let the community down a bit, as people were always asking when it was going to be released.

Picade-new-2015

Our guilt finally got the better of us, and so we dusted off the plans, refined the PCB and got serious about it.

PCB_v2_grande

The results is the Picade you can actually buy. It has a kickass PCB made by Ragworm (who else!) which has a novel 3-colour solder-mask/silk on top, the first we’ve made or seen.

Console_3_of_3_large

We’ve also made a smaller ‘Console’ version, which is perfect for a Raspi 2 and your HDMI screen. It houses the PCB, Pi, audio and controls in a neat, more portable box.

Piano HAT

Zack Igielman got talking to us after making his PiPiano on IndieGoGo. He wanted to make it a thing, but didn’t particularly want to spend time going through the production process, which we can really appreciate. Hardware is hard.

Piano-HAT-(3-of-4)

We gave it the full Pimoroni art-treatment, and the result is the Piano HAT. Possibly our shiniest board.

Pibow Tangerine

We made some custom Pibows for the Ubuntu Orange Matchbox. Lovely people. We liked the colour so much we decided to release it as an official Pibow colour: the Pibow Tangerine (rhymes with Yellow Submarine).

tangerine

Coupe Royale

The purple A+ Coupé has made the jump to join the other Coupés for the Raspi 2 and B+. Everyone loves purple.

We also have a couple of other little surprises coming over the next few days, just to keep you interested :D

Again, thanks for believing in us and supporting us! We’ll keep making awesome stuff in piratical fashion. Arrrr!

– The Pirates of Pimoroni

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