I received a parcel from Olimex today with few Olimexino 32U4 Arduino Leonardo clone boards. I got a few as a sample for a possible client work mainly because of the advertised ‘better’ hardware design over the Arduino Leonardo.
However when more closely inspecting the boards I saw a ball of solder short-circuiting two pins in the processor… Have to say I am not too happy to see something like this =(
I’ll have to check the other boards more closely before attempting to use them. They might work with this kind of shoddy soldering but why take the risk.
I have followed this Raspberry Pi clone for a while now, the form factor is awesome and you can use LiPo cell to power it. Super! Already ordered a few samples for a mobile project and eagerly waiting for them to arrive.
From the product pages
ODROID-W is a miniature computing module which is fully compatible with all software available for the Raspberry-Pi.The W stands for:
Wearable device development
Widely applicable Internet of Things (IoT) development
Workable DIY electronics prototyping
Too bad they have decided to discontinue it after the initial batch. Nothing to reveal the reason behind this decision, just a short announcement in product page.
EDIT: the announcement has changed
Not recommended for new designs. Broadcom informed us that they will not accept our order of the BCM2835 SoC anymore.
When the first trial batch is sold out, you can’t buy the ODROID-W anymore.
Sorry for the inconvenience.
This is really bad news – does raspberry pi foundation feel their IPR violated? Why would Broadcom deny to sell their chips to any interested party?
The parts sourcing for the 3D printer challenge is almost complete – the stepper motors arrived today! In fact I ordered A batch from China two weeks ago but they have not yet arrived – so I checked the prices from Watterott and they were really reasonable. Only downside is postage which is usually free when ordering from China.
I was pleasantly surprised to find put that the motors have a D-shaft and are the same Pololu steppers sold elsewhere with a much higher price tag.
The 3D printer challenge is coming together quite nicely – today the RAMPS 1.4 controller board and the display board arrived in the same package.
RAMPS 1.4 board was nicely packaged in a cardboard box – only negative thing was the power transistor leads which were left uncut and would most probably have short-circuited the Arduino MEGA. Also the solder job looks a bit shady – well what would you expect for 9€ worth of electronics =)
The display / controller board looks OK to me – it came with an adapter for RAMPS 1.4 board so connecting is a breeze.
Because of the design goals of the 3D printer project and money constraint I had to source the cheapest reasonably solid looking hotend and found this J-head hotend from China – just under $19 postage paid!