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Showing posts from October, 2019

4 Port high power USB hub

In the last couple of years, I tried several powered USB hubs to drive some development boards and USB peripherals. Most of the USB hubs which we can find in the local market are unreliable or not designed to drive more than 500mA of a load. After having a few bad experiences with powered USB hubs, I decided to build a USB hub by myself. I specifically design this hub to drive USB powered development boards and experimental peripherals. The core element of this USB hub is the " FE1.1s " USB 2.0 hub controller. " FE1.1s " is a low cost, 4-port, high-speed USB hub controller, and this chip can easily order by eBay or AliExpress . A prototype version of the USB hub. Apart from FE1.1s features, this USB hub has the following additional features: Switches to on/off and reset individual USB ports. Capability to provide a maximum of 3A of current from each USB port. Power using 9V to 15V DC voltage source. This USB hub uses PIC16F630 MCU and four units

Configuring ADSL router for SLT PeoTV

When purchasing SLT ( Sri Lanka Telecom ) PeoTV connection, we are getting a  preconfigured ADSL router and STB. Generally, the router they provided is a 4-port, low-cost ADSL router. The unit which I received with my PeoTV connection is " PROLiNK H5004NK ", and it is a decent quality 4-port ADSL router with a WiFi transceiver. I used this router for one year, and the main issues I noticed with this router are its unnecessary resets during heavy network traffic and limit configuration options. Due to the recent upgrade of my network, I replaced this router with the TP-Link W8961ND router. TP-Link W8961ND bundles with ADSL 2/2+ Modem, 300Mbps WiFi access point, and 4-port router. TP-Link W8961ND Router I purchased this router from a computer component seller and NOT from SLT. As usual, this router arrives with the default configuration, and I managed to configure it for SLT ADSL and PeoTV without any problems. The firmware version of this router is version 3.0