We have now a new over-voltage protection circuit design for the mass production Mesh-Potatos. We were not satisfied with the previous version. Ideally the over-voltage protection circuit has a snap-on characteristic that triggers the fuse and interrupts the supply voltage without a grey zone. The new circuit triggers at 43 Volts and acts as a [...]
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I have just returned from LCA 2010 where I presented on the Village Telco and manned a Village Telco booth on the Open Day. Very good response and lots of people would like Mesh Potatoes! Check out my LCA 2010 blog post for more. Mesh Potatoes at the LCA 2010 Open Day Today we made some phone calls over a 400m link using PCB antennas. We want to use etched PCB Wifi antennas for the Mesh Potato. However we have heard that some companies have had problems with PCB antennas, such as variable results in production. So before committing to PCB antenna we wanted to do [...] Joel is helping my Village Telco presentation at the upcoming LCA 2010 conference so I took a couple of the first Beta MP01s down to his place for a test drive. They are fresh off the production line and not even calibrated as I needed them in a hurry for LCA 2010. Atcom [...] Following the release of A2Billing 1.4.4 stable the 14th of December, we have released the Simplified Management Interface for the release. The Installation Wizard and the Simplified Management Interface and part of a larger effort to simplify pre-paid billing for the Village Telco. Code for the simplified wizard to be applied over the current A2Billing Administration [...] Jeff and I have just had an enjoyable day outside testing candidate antennas for the Mesh Potato. Our goal was to evaluate candidates for the internal antenna of the production Mesh Potato. Jeff designed three types of antennas which I laid out on PCB and had fabricated locally. The three designs were a dipole, [...] We are pleased to announce the release of A2Billing 1.4.4 (http://www.asterisk2billing.org). As a result of the Village Telco project, we have 2 new customer API’s to create a trunk config and to retrieve rates from an A2Billing platform, those 2 APIs will become [...] Here it comes the last posting of the “Billing calls from meshed potatoes” sequel. Coding is an interesting exercise of long term investment. In fact, “for every minute spent in organizing, an hour is earned”. In October 2009, Areski (A2Billing) visited IT46 in Stockholm. There were two main answers to our [...] I’m currently performing “Africanisation” tests on Mesh-Potato prototypes from the alpha and beta production run. “Africanisation” means that a Mesh Potato is supposed to survive even if you accidentally feed reversed DC polarity or AC to the DC jack, to any pin of the Ethernet port or FXS port. For a couple of weeks [...] In November 2008, Steve, Louise and myself sat down in Irene (a small “township” south of Pretoria) and started to draft what we considered a billing scenario for the Village Telco. A few nice ideas came up from that meeting: the relevance of local calls, voicemail, the possibility to switch your potato from [...] |
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