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Pulsecounter PCB’s have arrived

I posted recently about detecting power loss in an AVR and quickly writing values to EEPROM before power is lost completely and have since received the PCB’s I ordered from oshpark. This is the first time I have…

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This website is now exclusively SSL

Google have announced (Ironically via a non SSL website) that they will now take into account whether sites use secure, encrypted connections as a component of their ranking algorithm. On this announcement I’ve switched my website to exclusively…

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AVR – Detecting loss of power and writing to EEPROM

As part of a recent AVR project, I wanted a way to increment a counter and store it even if the power was lost. This could be done with an external flash memory device, but I wanted to…

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Huawei HG630B. Inspecting the firmware

My previous posts on hacking the HG630B didn’t result in me getting root/console access to the router, so it’s time to look into the firmware. I downloaded the latest version of the firmware. These are the details of…

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Huawei HG630B. Connecting to the UART

In my previous post I guessed that a five pad header on the rear of the PCB could be a UART of some type. I quickly soldered a header to the pads, connected my Saleae logic analyzer up,…

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Huawei HG630B. Peeking inside

Let me be the first to say, it is really hard to open up the HG630B without breaking anything. You have to get the foot off first, this can be done with a small flathead screwdriver and a…

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Huawei HG630B. Got Root?

Huawei HG630B. Got Root? Telecom New Zealand are distributing the Huawei HG630B router as their ‘Home Gateway’ for residential customers. These routers are particularly interesting as they are Tri-Purpose. They have three WAN interfaces: an RJ11 socket for…

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Yes, I’m still alive!

Wow, It’s June already! Yes, I’m still alive, I’ve been busy, but I intend to start posting again soon.

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Migrating to new server – again…

I’m in the middle of migrating to a new server. If you have any problems on my site, please send an email to

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Now available in SSL

My website is now available over SSL by using the https:// prefix. You will need to have the CAcert Root certificate installed – Follow the instructions here. Once you’ve installed the CAcert Root certificate, click here to access…

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