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Archive for the ‘Arduino’ Category

USB miners and the Dipo Electronic 19 port 20A USB Hub

20 Nov

This is a 19 port hub with an integral power supply that is capable of reliably supplying MORE than 700mA per port without overheating or becoming a fire hazard.

Dipo  hub , with engineering modifications for reliability

Dipo hub , with engineering modifications for reliability

Some of the Basic specifications:

– Fully 480mb/s at each port
– 16 Front facing Standard A USB ports
– 3 Side facing Standard A
– 1 Master hub connection Standard B for connection to Computing Equipment or other hubs
– Fully fused internally via multiple poly-fuse resettable fuses both on each individual port and on the main power feed to the Ports.
– UK/European standard 3 pin power plug
– Hub runs COOL

Unlike cheaper USB ports that only implement links at USB 1.0 standard (12mb/s speeds but state they are ‘compatible’ with USB 2.0) this is a professional FULL 480 Mb/s port that complies and implements the full 2.0 USB standard. It may also be used to connect to generic USB 1.0 equipment.

The good thing about these hubs is that you can load them up with 19 Bi-Fury miners (around 76 gh/s) and the miners would STILL run as intended.

The supplier is a Chinese company we have been working with, each hub we sell is inspected both at the electrical and electronic levels to ensure the correct functionality of the product.

It can be purchased here:
Razorfishsolutions.com.hk

 
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Posted in Android, Arduino, BITCOIN, forensics, FPGA, Linux, PCB Design, Reverse Engineering

 

Absolutely cool Arduino upgrade (Smart move by Microchip / Digilent)

16 Aug

Microchip the makers of the PIC range, have released a new development board that is going to ABSOLUTELY BLOW AWAY the Arduino AVR range.
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Arduino IDE 1.0.1

08 Jun

Checked out the new 1.0.1 IDE and ensured that the “TinyWebServer” for Arduino still functions.
The “TinyWebServer” can be downloaded from:
http://github.com/Hardcore-fs/TinyWebServer

1. download Arduino IDE, tinywebserver from github, extract both
2. rename folder “hardcore-fs-Tinywebserver????” to “Tinywebserver”
3. place folder “Tinywebserver” in Arduino-1.0.1\libraries
4. download flash library
5. place flash library in Arduino-1.0.1\libraries
6. open Arduino 1.0.1 application
7 goto file->examples->Tinywebserver->simplewebserver
8. Select verify/compile.
9 And it works!!

 
 

Tips for using GitHub

25 Feb

GitHub is great for finding code and then forking it, however one issue is that there are a significant number of idiots forking projects and then making insignificant formatting changes, maybe they want to see their name up on the web or even claim that they are part of the project (great for job interviews)

So when forking a project you need to ensure you have the actual base project and not some numpties re-fork of a re-fork.

Here is a classic example taken of a FULL Git patch:

@@ -6,7 +6,7 @@
6# Datatypes (KEYWORD1)
7#######################################
8
9-DHT22 KEYWORD1
9+DHT22 KEYWORD1
10
11 #######################################
12 # Methods and Functions (KEYWORD2)

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Arduino Mega: TinyWebServer final

29 Jan

All major bug fixes have now been implemented in the main library.
This includes:
Memory leaks/memory corruption in low memory conditions
Corruption of uploaded files, when host was high speed
Incorrect file upload timeout watchdog.

 
 

Arduino Mega: TinyWebServer update

11 Jan

We spent a couple of days cleaning up the TinyWebServer library by ovidiucp.
It now functions correctly under the Arduino 1.0 IDE
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Arduino Mega: Direct R/W of a Nand Flash memory chip

02 Jan

Since I had little to do over New years day, I threw together some Arduino code that would allow reading of Nand-Flash chips. This includes the memory contents and both the ID and ‘secret’ ID where supported.
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