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Archive for the ‘PCB’ Category

MiniPiio Thermocouple

April 6th, 2014 No comments

MiniPiio Thermocouple is a single channel temperature measurement add-on board using Type-K thermocouples.

The MAX31855 is a sophisticated thermocouple-to-digital converter. It features a built-in 14-bit analog-to-digital converter (ADC) for thermocouple measurement. In addition it also contains a cold-junction sensor for compensation temperature sensing and correction.

The MAX31855 resolves temperatures to 0.25°C. It allows readings as high as +1800°C and as low as -270°C and exhibits thermocouple accuracy of ±2°C for temperatures ranging from -200°C to +700°C for K-type thermocouples.

– Works with any K type thermocouple
– Temperature range = -200°C to +1350°C output
– Resolution 0.25 degree
– Accuracy is ±2°C
– Internal cold junction temperature reading
– SPI bus interface
– Two SPi Chips Selects (!CE0 and !CE1)

You can find it at our Tindie store

RPi_MiniPiio_Thermocouple_small

RPi_and_MiniPiio_Thermocouple_small

New board – MiniPIIO Breakout!

March 21st, 2014 No comments

MiniPIIO Breakout! is our newest add-on board for the Raspberry Pi.

It breaks out (hence its name) all the Pi’s expansion I/O into four neat little groups.

UART is broken out into a 6-Way and 4-way pin header. The 6-Way is FTDI USB Cable compatable.

SPI is broken out into two 6-way headers, each with it’s own SPI chip select.

I2C is borken out into two 4-way headers.

GPIO is broken out into two 10-way headers. GPIO4/17/18/22/23/24/25/27 and 3.3V and 0V.

RPi-_MiniPiio_Breakout!_top_small

You can buy it at our Tindie store here

RPi-X SensoRPi – more photos & update

March 9th, 2014 No comments

We’ve got a couple of more photos to show you. This time the RPi-X SesnoRPi is mounted into a case.

RPi-X_SensoRPi+PiBow2 RPi-X_SensoRPi+PiBow1

Mounted into a case the SensoRpi is extremely ridged.

We’ve continued testing and the electronics are all confirmed working. So far we’ve tested it using Python and RPi.GPIO, next we’ll be testing it using Scratch with the GPIO extensions from Simon at Cymplecy.

Once we completed our Scratch software testing will be looking to extend our testing to Gordon’s wiringPi and RPIO

RPi-X ELab101 – mini electronics lab

March 7th, 2014 No comments

RPi-X ELab101 is the second of our RPi-eXperimeter boards.

RPi-X_Elab101_small
RPi-X ELab101 is a mini electronics lab for the Pi.

It is dominated by a 170-pin bread boarding area for prototyping and construction your circuits on. Next to this, there are 3x tactile switches, 3x LED’s, 2x potentiometers and a buzzer circuit which make up the input and output devices. These are connected to female headers allowing them to be quickly interfaced with the Pi’s GPIO’s using simple male-male jumper wires.

For analogue measurements, a 4-channel 0V to 10V, 10-bit ADC is included and it’s inputs are also available via a female header connector.

Finally, all the signals from the Pi’s expansion header are brought out to female headers, giving access to all the Pi’s expansion signals, including the GPIO’s, SPI, I2C, UART and PWM.

RPi_and_RPi-X_Elab101_small
More to come….

RPi-X SensoRPi – first photos

March 3rd, 2014 No comments

Here’s some photos of the first partially built boards:

 

RPi_X-SensoRPi_small

Piio’s and MiniPiio’s boards are now for sale on Tindie

November 9th, 2013 No comments

Pii and MiniPiio Boards are now for sale on Tindie

Details are here:

https://www.tindie.com/stores/DTronixs/

Categories: MiniPiio, PCB, Raspberry Pi Tags:

New MiniPiio SimpleIO and RS485

March 24th, 2013 No comments

We’ve got a couple of new MiniPiio boards in the works.

The first MiniPiio is SimpleIO which is 8x LED’s and 8x Tactile Switches connected to the GPIO signals. This is currently being manufactured, so we’ll let you know how it goes.

RPi_MiniPiio_SimpleIO_0v10
RPi_MiniPiio_SimpleIO_0v10

The second MiniPiio is a serial RS485 board. It’s the one I’ve been asked a lot for. The layout is finished and its going out for manufacture next week.

RPi_MiniPiio_RS485 0v10
RPi_MiniPiio_Rs485 0v10

Categories: MiniPiio, PCB, Prototype, Raspberry Pi Tags:

MiniPiio AIN

December 30th, 2012 No comments

We’ve been working on a new MiniPiio module for the Raspberry Pi.

Lately we’ve being making a lot of digital I/O modules so we thought it was time to do something analogue. So we’ve design a 4-ch analog to digital board. It uses a either 10-bit MCP3004 or 12-bit MCP3204 ADC from Microchip.

Prototypes of the board are being made and we’ll have them soon.