New for 2016 – The Nanode 2016!
In the last few months, Nanode has taken a new direction, it being at least a couple of years since any new hardware was produced. The reasons for this is that it became increasingly difficult to come up with cost effective innovative designs when stuck somewhere between Raspberry Pi at $35 and low cost ARM boards from China for $5 or less.
Nanode is now back, with some new interesting ideas – and of course new open source products.
Over the next few weeks I will update this site, but in the meantime you can look at my personal blog over at “Sustainable Suburbia”.
This week I have been working on various MSP430 projects including a prototype board based on the MSP430FR2433.
This is a very small chip in a 4mm square package – which doesn’t make it really easy to work with – so I decided to design a series of small boards to take full advantage of its diminutive package size.
Today I have been laying out possibly what is the smallest board I have done so far – just 10.24mm x 12.7mm. Remarkably this includes the breakout for the MSP430FR2433 plus an external SPI memory device.
|Nanode 2016 – Just 0.4 x 0.5″|
As you can see, things are fairly compact on this board, and I have had to use 0402 resistors and capacitors -the layout was surprisingly easy for a board of this density. All of the components are on the top side – except for an optional additional memory device and an extra decoupling capacitor.
Despite it’s small footprint, this is a full microcomputer with up to 256K bytes of external memory. It has 3 communications interfaces which can include up to 2 UARTS and up to 3 SPI ports.
If you are using it with a serial terminal, with one UART dedicated to that purpose, there are a further 14 GPIO lines available – 6 of which have a 10 bit ADC function.
The board is designed to take external memory – which may be either SRAM or FRAM, or a mix of each. If FRAM is used, then the device will retain the contents even after power down.
This module has been designed as a building block, primarily to be used to interface with SPI based peripheral devices – or where space is too tight for even an Arduino Nano.